Line of Evidence (LOE) for Decision ID 149859, Nitrogen, Nitrate
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
302581 |
|
Pollutant: |
Nitrogen, Nitrate |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
18 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 18 samples exceeded the water quality threshold for Nitrate as N. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region (page 3-34) states that: Waters shall not exceed 10 mg/L as nitrate-nitrogen (NO3-N). |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 149859, Nitrogen, Nitrate
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
96224 |
|
Pollutant: |
Nitrogen, Nitrate |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Non-Contact Recreation |
|
Number of Samples: |
5 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Zero of the 5 samples exceeded the objective for Nitrate. |
Data Reference: |
Data for Various Pollutants from Wishtoyo Foundation's Ventura Coastkeeper, 2009-2010. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
From the Los Angeles RWQCB Basin Plan: Waters shall not contain biostimulatory substances in concentrations that promote aquatic growth to the extent that such growth causes nuisance or adversely affects beneficial uses. Waters shall not exceed 45 mg/L as nitrate (NO3). |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Samples were collected from SC-01 Vent WRF (Ventura WRF Outfall to Estuary). |
Temporal Representation: |
Samples were collected 1/29/2010 - 8/15/2010. |
Environmental Conditions: |
|
QAPP Information: |
Wishtoyo Foundation volunteer monitoring QAPP was provided. |
QAPP Information Reference(s): |
Quality Assurance Project Plan from Wishtoyo Foundation. |
|
Line of Evidence (LOE) for Decision ID 149859, Nitrogen, Nitrate
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
302567 |
|
Pollutant: |
Nitrogen, Nitrate |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
19 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 19 samples exceeded the water quality threshold for Nitrate as N. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region (page 3-34) states that: Waters shall not exceed 10 mg/L as nitrate-nitrogen (NO3-N). |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 149859, Nitrogen, Nitrate
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
302584 |
|
Pollutant: |
Nitrogen, Nitrate |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
13 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 13 samples exceeded the water quality threshold for Nitrate as N. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region (page 3-34) states that: Waters shall not exceed 10 mg/L as nitrate-nitrogen (NO3-N). |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750371 (RSW-002). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 149859, Nitrogen, Nitrate
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
302610 |
|
Pollutant: |
Nitrogen, Nitrate |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
19 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 19 samples exceeded the water quality threshold for Nitrate as N. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region (page 3-34) states that: Waters shall not exceed 10 mg/L as nitrate-nitrogen (NO3-N). |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 149859, Nitrogen, Nitrate
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
302627 |
|
Pollutant: |
Nitrogen, Nitrate |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
19 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 19 samples exceeded the water quality threshold for Nitrate as N. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region (page 3-34) states that: Waters shall not exceed 10 mg/L as nitrate-nitrogen (NO3-N). |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 149859, Nitrogen, Nitrate
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
302609 |
|
Pollutant: |
Nitrogen, Nitrate |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
18 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 18 samples exceeded the water quality threshold for Nitrate as N. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region (page 3-34) states that: Waters shall not exceed 10 mg/L as nitrate-nitrogen (NO3-N). |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 149859, Nitrogen, Nitrate
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
96225 |
|
Pollutant: |
Nitrogen, Nitrate |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Non-Contact Recreation |
|
Number of Samples: |
192 |
Number of Exceedances: |
15 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Fifteen of the 192 samples exceeded the objective for nitrate. |
Data Reference: |
NPDES receiving water monitoring reports for the City of San Buenaventura Ventura Water Reclamation Facility (NPDES No. CA0053651). |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
From the Los Angeles RWQCB Basin Plan: Waters shall not contain biostimulatory substances in concentrations that promote aquatic growth to the extent that such growth causes nuisance or adversely affects beneficial uses. Waters shall not exceed 45 mg/L as nitrate (NO3). |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Samples were collected from R2 (Estuary - at South Shoreline), R3 (Estuary - at West shoreline, at or near point of surface discharge, or tidal inflow/outflow at shoreline), and R4 (Estuary - at Northwest shoreline). |
Temporal Representation: |
Samples were collected 1/9/2002 - 6/5/2007. |
Environmental Conditions: |
Grab samples were taken and analyzed on monthly basis from January 2002 to February 2007. |
QAPP Information: |
Data collected for compliance with Ventura Water Reclamation Facility Monitoring and Reporting Program. |
QAPP Information Reference(s): |
Ventura Water Reclamation Facility Monitoring and reporting program for NPDES No. CA0053651
|
|
Line of Evidence (LOE) for Decision ID 149859, Nitrogen, Nitrate
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
302575 |
|
Pollutant: |
Nitrogen, Nitrate |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
19 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 19 samples exceeded the water quality threshold for Nitrate as N. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region (page 3-34) states that: Waters shall not exceed 10 mg/L as nitrate-nitrogen (NO3-N). |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 149859, Nitrogen, Nitrate
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
302559 |
|
Pollutant: |
Nitrogen, Nitrate |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
13 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 13 samples exceeded the water quality threshold for Nitrate as N. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region (page 3-34) states that: Waters shall not exceed 10 mg/L as nitrate-nitrogen (NO3-N). |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750371 (RSW-002). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 150466, Ammonia
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
88237 |
|
Pollutant: |
Ammonia (Unionized) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Fish Spawning |
|
Number of Samples: |
42 |
Number of Exceedances: |
4 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
4 of 42 samples exceed the one-hour average concentration of 0.233 mg un-ionized NH3/L. 18 of the 42 data are reported as non-detects. These non-detects are less than or equal to the water quality standard, the value will be considered as meeting the water quality standard, objective, criterion, or evaluation guideline. |
Data Reference: |
Data for Various Pollutants from the city of Ventura, 1997-2010. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, Los Angeles Region (Basin Plain): For waters in which the salinity is equal to or greater than 10 parts per thousand 95% or more of the time, the applicable objectives are a 4-day average concentration of 0.035 mg un-ionized NH3/L and a one-hour average concentration of 0.233 mg un-ionized NH3/L. |
Objective/Criterion Reference: |
1999 Update of Ambient Water Quality Criteria for Ammonia |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Samples were collected at EL1 (Lower Estuary main channel), EL2 (Lower Estuary at mouth), EM1 (Middle Estuary main channel), EM2 (Middle Estuary d/s of VWRF Outfall), EU1 (Upper Estuary main channel (d/s of Harbor Blvd. Bridge), EU2 (Upper Estuary high-flow channel), EU3 (Upper Estuary d/s of VWRF Outfall). |
Temporal Representation: |
Samples were collected from 9/1/2009 to 11/17/2009 and from 1/27/2010 to 7/27/2010. |
Environmental Conditions: |
|
QAPP Information: |
A signed QAPP was not submitted. |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 150466, Ammonia
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253533 |
|
Pollutant: |
Nitrogen, ammonia (Total Ammonia) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
15 |
Number of Exceedances: |
4 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 4 of 15 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: For inland surface waters not characteristic of freshwater, the four-day average concentration of unionized ammonia shall not exceed 0.035 mg/L and the one-hour average concentration shall not exceed 0.233 mg/L. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 150466, Ammonia
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253424 |
|
Pollutant: |
Nitrogen, ammonia (Total Ammonia) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
16 |
Number of Exceedances: |
4 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 4 of 16 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: For inland surface waters not characteristic of freshwater, the four-day average concentration of unionized ammonia shall not exceed 0.035 mg/L and the one-hour average concentration shall not exceed 0.233 mg/L. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750371 (RSW-002). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 150466, Ammonia
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253337 |
|
Pollutant: |
Nitrogen, ammonia (Total Ammonia) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
13 |
Number of Exceedances: |
3 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 3 of 13 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: For inland surface waters not characteristic of freshwater, the four-day average concentration of unionized ammonia shall not exceed 0.035 mg/L and the one-hour average concentration shall not exceed 0.233 mg/L. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 150466, Ammonia
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253404 |
|
Pollutant: |
Nitrogen, ammonia (Total Ammonia) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
3 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: For inland surface waters not characteristic of freshwater, the four-day average concentration of unionized ammonia shall not exceed 0.035 mg/L and the one-hour average concentration shall not exceed 0.233 mg/L. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2020-04-30 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 150466, Ammonia
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253316 |
|
Pollutant: |
Nitrogen, ammonia (Total Ammonia) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
3 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: For inland surface waters not characteristic of freshwater, the four-day average concentration of unionized ammonia shall not exceed 0.035 mg/L and the one-hour average concentration shall not exceed 0.233 mg/L. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2020-04-30 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 150466, Ammonia
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253425 |
|
Pollutant: |
Nitrogen, ammonia (Total Ammonia) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
15 |
Number of Exceedances: |
4 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 4 of 15 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: For inland surface waters not characteristic of freshwater, the four-day average concentration of unionized ammonia shall not exceed 0.035 mg/L and the one-hour average concentration shall not exceed 0.233 mg/L. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 150466, Ammonia
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253403 |
|
Pollutant: |
Nitrogen, ammonia (Total Ammonia) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
16 |
Number of Exceedances: |
4 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 4 of 16 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: For inland surface waters not characteristic of freshwater, the four-day average concentration of unionized ammonia shall not exceed 0.035 mg/L and the one-hour average concentration shall not exceed 0.233 mg/L. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750371 (RSW-002). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 150466, Ammonia
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253405 |
|
Pollutant: |
Nitrogen, ammonia (Total Ammonia) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
13 |
Number of Exceedances: |
3 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 3 of 13 samples exceeded the water quality threshold for Ammonia as N. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: For inland surface waters not characteristic of freshwater, the four-day average concentration of unionized ammonia shall not exceed 0.035 mg/L and the one-hour average concentration shall not exceed 0.233 mg/L. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136085, Antimony
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
245572 |
|
Pollutant: |
Antimony |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed Southern California Bight Project 2018 data for Santa Clara River Estuary to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Antimony . |
Data Reference: |
WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The evaluation guideline for antimony is the effects range median (ERM) value of 25 ug/g dry weight (Long and Morgan 1990). |
Guideline Reference: |
The potential for biological effects of sediment-sorbed contaminants tested in the National Status of Trends Program. NOAA Technical Memorandum NOS OMA 52. Seattle, WA: National Oceanic and Atmospheric Administration |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): B18-10658 (B18-10658). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2018-09-28 to 2018-09-28 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 136085, Antimony
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253586 |
|
Pollutant: |
Antimony |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Commercial or recreational collection of fish, shellfish, or organisms |
|
Number of Samples: |
2 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Antimony. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The antimony criterion for the protection of human health from consumption of organisms only is 4,300 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2019-08-06 and 2020-02-04 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136085, Antimony
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253345 |
|
Pollutant: |
Antimony |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Commercial or recreational collection of fish, shellfish, or organisms |
|
Number of Samples: |
2 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Antimony. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The antimony criterion for the protection of human health from consumption of organisms only is 4,300 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2019-08-06 and 2020-02-04 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136085, Antimony
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
245357 |
|
Pollutant: |
Antimony |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed Southern California Bight Project 2018 data for Santa Clara River Estuary to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Antimony . |
Data Reference: |
WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The evaluation guideline for antimony is the effects range median (ERM) value of 25 ug/g dry weight (Long and Morgan 1990). |
Guideline Reference: |
The potential for biological effects of sediment-sorbed contaminants tested in the National Status of Trends Program. NOAA Technical Memorandum NOS OMA 52. Seattle, WA: National Oceanic and Atmospheric Administration |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): B18-10658 (B18-10658). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2018-09-28 to 2018-09-28 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 136085, Antimony
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253323 |
|
Pollutant: |
Antimony |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Commercial or recreational collection of fish, shellfish, or organisms |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Antimony. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The antimony criterion for the protection of human health from consumption of organisms only is 4,300 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2020-02-04 and 2020-02-04 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136086, Arsenic
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253565 |
|
Pollutant: |
Arsenic |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
3 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Arsenic. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved arsenic criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 36 ug/L. The conversion factor used to convert the total fraction criterion for arsenic to dissolved fraction criterion is 1. Therefore all data was considered to be representative of the dissolved fraction. (California Toxics Rule, 2000) |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2019-08-06 and 2020-02-04 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136086, Arsenic
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253435 |
|
Pollutant: |
Arsenic |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
3 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Arsenic. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved arsenic criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 36 ug/L. The conversion factor used to convert the total fraction criterion for arsenic to dissolved fraction criterion is 1. Therefore all data was considered to be representative of the dissolved fraction. (California Toxics Rule, 2000) |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2019-08-06 and 2020-02-04 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136086, Arsenic
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253587 |
|
Pollutant: |
Arsenic |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Arsenic. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved arsenic criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 36 ug/L. The conversion factor used to convert the total fraction criterion for arsenic to dissolved fraction criterion is 1. Therefore all data was considered to be representative of the dissolved fraction. (California Toxics Rule, 2000) |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2020-02-04 and 2020-02-04 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136086, Arsenic
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
245517 |
|
Pollutant: |
Arsenic |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed Southern California Bight Project 2018 data for Santa Clara River Estuary to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Arsenic . |
Data Reference: |
WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The evaluation guideline for arsenic is the effects range median (ERM) value of 70 ug/g dry weight (Long et al., 1995). |
Guideline Reference: |
Incidence of adverse biological effects within ranges of chemical concentrations in marine and estuary sediments. Environmental Management. 19, (1): 81-97 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): B18-10658 (B18-10658). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2018-09-28 to 2018-09-28 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 136086, Arsenic
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
7549 |
|
Pollutant: |
Arsenic |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Estuarine Habitat |
Aquatic Life Use: |
Fish Migration | Fish Spawning | Preservation of Rare & Endangered Species | Wildlife Habitat |
|
Number of Samples: |
63 |
Number of Exceedances: |
2 |
|
Data and Information Type: |
Fixed station physical/chemical (conventional plus toxic pollutants) |
Data Used to Assess Water Quality: |
Two of 63 samples exceeded the California Toxics Rule saltwater Chronic Criteria for Arsenic. Semi-annual ambient water quality samples for Arsenic were taken in compliance with the Ventura Water Reclamation Facility NDPES permit monitoring requirements. |
Data Reference: |
NPDES receiving water monitoring reports for the City of San Buenaventura Ventura Water Reclamation Facility (NPDES No. CA0053651). |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The California Toxics Rule lists a Chronic Criteria of 36 ug/L for Arsenic to protect aquatic life in saltwater. |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The listed monitoring stations for this water body pollutant combination include: R1 located at the south shoreline, R3 located at the west shoreline, and L5 located at the northwest shoreline. |
Temporal Representation: |
Grab samples were taken and analyzed on semi-annual basis from February 2002 to February 2007 |
Environmental Conditions: |
|
QAPP Information: |
Data collected for compliance with Ventura Water Reclamation Facility Monitoring and Reporting Program. |
QAPP Information Reference(s): |
Ventura Water Reclamation Facility Monitoring and reporting program for NPDES No. CA0053651
|
|
Line of Evidence (LOE) for Decision ID 136086, Arsenic
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
30238 |
|
Pollutant: |
Arsenic |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Estuarine Habitat |
Aquatic Life Use: |
Fish Migration | Fish Spawning | Preservation of Rare & Endangered Species | Wildlife Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
Fixed station physical/chemical (conventional plus toxic pollutants) |
Data Used to Assess Water Quality: |
Zero of one samples exceeded the California Toxics Rule saltwater Chronic Criteria for Arsenic. |
Data Reference: |
Surface Water Ambient Monitoring Program data for all watersheds in the Los Angeles Region 2001-2005. |
|
SWAMP Data: |
SWAMP |
|
Water Quality Objective/Criterion: |
The California Toxics Rule lists a Chronic Criteria of 36 ug/L for Arsenic to protect aquatic life in saltwater. |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
One monitoring station: 403STCEST. |
Temporal Representation: |
Grab samples taken and analyzed on 11/14/2001. |
Environmental Conditions: |
|
QAPP Information: |
Data collected for compliance with SWAMP. |
QAPP Information Reference(s): |
Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version)
|
|
Line of Evidence (LOE) for Decision ID 136086, Arsenic
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253477 |
|
Pollutant: |
Arsenic |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
3 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Arsenic. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved arsenic criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 36 ug/L. The conversion factor used to convert the total fraction criterion for arsenic to dissolved fraction criterion is 1. Therefore all data was considered to be representative of the dissolved fraction. (California Toxics Rule, 2000) |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2019-08-06 and 2020-02-04 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136086, Arsenic
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253566 |
|
Pollutant: |
Arsenic |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Arsenic. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved arsenic criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 36 ug/L. The conversion factor used to convert the total fraction criterion for arsenic to dissolved fraction criterion is 1. Therefore all data was considered to be representative of the dissolved fraction. (California Toxics Rule, 2000) |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2020-02-04 and 2020-02-04 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136086, Arsenic
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
245643 |
|
Pollutant: |
Arsenic |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed Southern California Bight Project 2018 data for Santa Clara River Estuary to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Arsenic . |
Data Reference: |
WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The evaluation guideline for arsenic is the effects range median (ERM) value of 70 ug/g dry weight (Long et al., 1995). |
Guideline Reference: |
Incidence of adverse biological effects within ranges of chemical concentrations in marine and estuary sediments. Environmental Management. 19, (1): 81-97 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): B18-10658 (B18-10658). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2018-09-28 to 2018-09-28 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 136086, Arsenic
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253415 |
|
Pollutant: |
Arsenic |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
3 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Arsenic. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved arsenic criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 36 ug/L. The conversion factor used to convert the total fraction criterion for arsenic to dissolved fraction criterion is 1. Therefore all data was considered to be representative of the dissolved fraction. (California Toxics Rule, 2000) |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2019-08-06 and 2020-02-04 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136088, Cadmium
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
246340 |
|
Pollutant: |
Cadmium |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed Southern California Bight Project 2018 data for Santa Clara River Estuary to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cadmium . |
Data Reference: |
WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The evaluation guideline for cadmium is the probable effect level (PEL) of 4.21 ug/g dry weight (MacDonald et al., 1996). |
Guideline Reference: |
Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): B18-10658 (B18-10658). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2018-09-28 to 2018-09-28 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 136088, Cadmium
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253867 |
|
Pollutant: |
Cadmium |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
2 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Cadmium. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved cadmium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 9.3 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2019-08-06 and 2020-02-04 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136088, Cadmium
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253848 |
|
Pollutant: |
Cadmium |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Cadmium. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved cadmium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 9.3 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2020-02-04 and 2020-02-04 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136088, Cadmium
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
246580 |
|
Pollutant: |
Cadmium |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed Southern California Bight Project 2018 data for Santa Clara River Estuary to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Cadmium . |
Data Reference: |
WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The evaluation guideline for cadmium is the probable effect level (PEL) of 4.21 ug/g dry weight (MacDonald et al., 1996). |
Guideline Reference: |
Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): B18-10658 (B18-10658). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2018-09-28 to 2018-09-28 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 136088, Cadmium
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253888 |
|
Pollutant: |
Cadmium |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Cadmium. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved cadmium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 9.3 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2020-02-04 and 2020-02-04 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136088, Cadmium
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253886 |
|
Pollutant: |
Cadmium |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
2 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Cadmium. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved cadmium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 9.3 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2019-08-06 and 2020-02-04 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136088, Cadmium
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253952 |
|
Pollutant: |
Cadmium |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
2 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Cadmium. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved cadmium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 9.3 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2019-08-06 and 2020-02-04 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136088, Cadmium
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253869 |
|
Pollutant: |
Cadmium |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
2 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Cadmium. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved cadmium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 9.3 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2019-08-06 and 2020-02-04 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 151878, Oxygen, Dissolved
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
307978 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
3 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region (page 3-39) states that: At a minimum (see specifics below), the mean annual dissolved oxygen concentration of all waters shall be greater than 7 mg/L. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2018-12-26 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 151878, Oxygen, Dissolved
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
307979 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
3 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region (page 3-39) states that: At a minimum (see specifics below), the mean annual dissolved oxygen concentration of all waters shall be greater than 7 mg/L. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2018-12-26 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 151878, Oxygen, Dissolved
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
308154 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
91 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 91 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: At a minimum... no single determination shall be less than 5.0 mg/L. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 151878, Oxygen, Dissolved
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
307883 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
67 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 67 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: At a minimum... no single determination shall be less than 5.0 mg/L. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 151878, Oxygen, Dissolved
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
308004 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
92 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 92 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: At a minimum... no single determination shall be less than 5.0 mg/L. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 151878, Oxygen, Dissolved
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
308128 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
3 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region (page 3-39) states that: At a minimum (see specifics below), the mean annual dissolved oxygen concentration of all waters shall be greater than 7 mg/L. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2018-12-26 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 151878, Oxygen, Dissolved
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
308129 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
92 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 1 of 92 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: At a minimum... no single determination shall be less than 5.0 mg/L. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750371 (RSW-002). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 151878, Oxygen, Dissolved
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
308081 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
3 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region (page 3-39) states that: At a minimum (see specifics below), the mean annual dissolved oxygen concentration of all waters shall be greater than 7 mg/L. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2018-12-26 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 151878, Oxygen, Dissolved
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
308029 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
3 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region (page 3-39) states that: At a minimum (see specifics below), the mean annual dissolved oxygen concentration of all waters shall be greater than 7 mg/L. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2018-12-26 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 151878, Oxygen, Dissolved
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
308030 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
67 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 67 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: At a minimum... no single determination shall be less than 5.0 mg/L. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 151878, Oxygen, Dissolved
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
308127 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
3 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region (page 3-39) states that: At a minimum (see specifics below), the mean annual dissolved oxygen concentration of all waters shall be greater than 7 mg/L. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750371 (RSW-002). |
Temporal Representation: |
The samples were collected between the dates of 2018-12-26 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 151878, Oxygen, Dissolved
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
307801 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
92 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 92 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: At a minimum... no single determination shall be less than 5.0 mg/L. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 151878, Oxygen, Dissolved
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
307977 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
3 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region (page 3-39) states that: At a minimum (see specifics below), the mean annual dissolved oxygen concentration of all waters shall be greater than 7 mg/L. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750371 (RSW-002). |
Temporal Representation: |
The samples were collected between the dates of 2018-12-26 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 151878, Oxygen, Dissolved
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
308126 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
91 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 91 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: At a minimum... no single determination shall be less than 5.0 mg/L. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 151878, Oxygen, Dissolved
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
308153 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
3 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region (page 3-39) states that: At a minimum (see specifics below), the mean annual dissolved oxygen concentration of all waters shall be greater than 7 mg/L. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2018-12-26 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 151878, Oxygen, Dissolved
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
308000 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
92 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 1 of 92 samples exceeded the water quality threshold for Oxygen, Dissolved. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: At a minimum... no single determination shall be less than 5.0 mg/L. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750371 (RSW-002). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 149865, PAHs (Polycyclic Aromatic Hydrocarbons)
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
248752 |
|
Pollutant: |
PAHs (Polycyclic Aromatic Hydrocarbons) |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed Southern California Bight Project 2018 data for Santa Clara River Estuary to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for High molecular weight PAHs . |
Data Reference: |
WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The evaluation guideline for high molecular weight PAH's is 9600 ng/g dry weight (Long et al., 1995). |
Guideline Reference: |
Incidence of adverse biological effects within ranges of chemical concentrations in marine and estuary sediments. Environmental Management. 19, (1): 81-97 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): B18-10658 (B18-10658). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2018-09-28 to 2018-09-28 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 149865, PAHs (Polycyclic Aromatic Hydrocarbons)
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
250404 |
|
Pollutant: |
PAHs (Polycyclic Aromatic Hydrocarbons) |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed Southern California Bight Project 2018 data for Santa Clara River Estuary to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for PAHs (Polycyclic Aromatic Hydrocarbons) . |
Data Reference: |
WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The sediment quality guideline for Total PAHs is 1800 ug/g organic carbon (Fairey et al., 2001). |
Guideline Reference: |
An evaluation of methods for calculating mean sediment quality guideline quotients as indicators of contamination and acute toxicity to amphipods by chemical mixtures. Environmental Toxicology and Chemistry. 20(10): 2276-2286 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): B18-10658 (B18-10658). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2018-09-28 to 2018-09-28 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 149865, PAHs (Polycyclic Aromatic Hydrocarbons)
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
249441 |
|
Pollutant: |
PAHs (Polycyclic Aromatic Hydrocarbons) |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed Southern California Bight Project 2018 data for Santa Clara River Estuary to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Low molecular weight PAHs . |
Data Reference: |
WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The evaluation guideline for low molecular weight PAHs is the probable effect level (PEL) of 1442 ug/kg dry weight (MacDonald et al., 1996). |
Guideline Reference: |
Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): B18-10658 (B18-10658). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2018-09-28 to 2018-09-28 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 149865, PAHs (Polycyclic Aromatic Hydrocarbons)
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
249072 |
|
Pollutant: |
PAHs (Polycyclic Aromatic Hydrocarbons) |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed Southern California Bight Project 2018 data for Santa Clara River Estuary to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for High molecular weight PAHs . |
Data Reference: |
WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The evaluation guideline for high molecular weight PAH's is 9600 ng/g dry weight (Long et al., 1995). |
Guideline Reference: |
Incidence of adverse biological effects within ranges of chemical concentrations in marine and estuary sediments. Environmental Management. 19, (1): 81-97 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): B18-10658 (B18-10658). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2018-09-28 to 2018-09-28 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 149865, PAHs (Polycyclic Aromatic Hydrocarbons)
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
250403 |
|
Pollutant: |
PAHs (Polycyclic Aromatic Hydrocarbons) |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed Southern California Bight Project 2018 data for Santa Clara River Estuary to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for PAHs (Polycyclic Aromatic Hydrocarbons) . |
Data Reference: |
WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The sediment quality guideline for Total PAHs is 1800 ug/g organic carbon (Fairey et al., 2001). |
Guideline Reference: |
An evaluation of methods for calculating mean sediment quality guideline quotients as indicators of contamination and acute toxicity to amphipods by chemical mixtures. Environmental Toxicology and Chemistry. 20(10): 2276-2286 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): B18-10658 (B18-10658). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2018-09-28 to 2018-09-28 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 149865, PAHs (Polycyclic Aromatic Hydrocarbons)
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
249120 |
|
Pollutant: |
PAHs (Polycyclic Aromatic Hydrocarbons) |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed Southern California Bight Project 2018 data for Santa Clara River Estuary to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Low molecular weight PAHs . |
Data Reference: |
WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The evaluation guideline for low molecular weight PAHs is the probable effect level (PEL) of 1442 ug/kg dry weight (MacDonald et al., 1996). |
Guideline Reference: |
Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): B18-10658 (B18-10658). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2018-09-28 to 2018-09-28 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 136099, Silver
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
250907 |
|
Pollutant: |
Silver |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed Southern California Bight Project 2018 data for Santa Clara River Estuary to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Silver . |
Data Reference: |
WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The evaluation guideline for silver is the probable effect level (PEL) of 1.77 ug/g dry weight (MacDonald et al., 1996). |
Guideline Reference: |
Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): B18-10658 (B18-10658). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2018-09-28 to 2018-09-28 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 136099, Silver
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255981 |
|
Pollutant: |
Silver |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Silver. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved silver criterion maximum concentration (CMC) to protect aquatic life in saltwater is 1.9 ug/L. This criterion was divided by 2 in order to better represent a CMC value as specified in footnote g of Table (b)(1) of the California Toxics Rule, 2000. |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2019-05-07 and 2019-05-07 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136099, Silver
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
256045 |
|
Pollutant: |
Silver |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Silver. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved silver criterion maximum concentration (CMC) to protect aquatic life in saltwater is 1.9 ug/L. This criterion was divided by 2 in order to better represent a CMC value as specified in footnote g of Table (b)(1) of the California Toxics Rule, 2000. |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2019-05-07 and 2019-05-07 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136099, Silver
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
251156 |
|
Pollutant: |
Silver |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed Southern California Bight Project 2018 data for Santa Clara River Estuary to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Silver . |
Data Reference: |
WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The evaluation guideline for silver is the probable effect level (PEL) of 1.77 ug/g dry weight (MacDonald et al., 1996). |
Guideline Reference: |
Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): B18-10658 (B18-10658). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2018-09-28 to 2018-09-28 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 136101, Zinc
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
256256 |
|
Pollutant: |
Zinc |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
3 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Zinc. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved zinc criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 81 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2020-04-30 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136101, Zinc
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
256208 |
|
Pollutant: |
Zinc |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 6 samples exceeded the water quality threshold for Zinc. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved zinc criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 81 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750371 (RSW-002). |
Temporal Representation: |
The samples were collected between the dates of 2020-04-30 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136101, Zinc
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
256191 |
|
Pollutant: |
Zinc |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 6 samples exceeded the water quality threshold for Zinc. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved zinc criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 81 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2020-04-30 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136101, Zinc
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
256238 |
|
Pollutant: |
Zinc |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
7 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 7 samples exceeded the water quality threshold for Zinc. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved zinc criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 81 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2018-10-02 and 2020-02-04 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136101, Zinc
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
256236 |
|
Pollutant: |
Zinc |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
8 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for Zinc. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved zinc criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 81 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2018-10-02 and 2020-02-04 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136101, Zinc
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
256286 |
|
Pollutant: |
Zinc |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
8 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for Zinc. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved zinc criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 81 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2018-10-02 and 2020-02-04 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136101, Zinc
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
251661 |
|
Pollutant: |
Zinc |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed Southern California Bight Project 2018 data for Santa Clara River Estuary to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Zinc . |
Data Reference: |
WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The evaluation guideline for zinc is the effects range median value of 410 PPM (ug/g) dry weight (Long et al., 1995). |
Guideline Reference: |
Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): B18-10658 (B18-10658). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2018-09-28 to 2018-09-28 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 136101, Zinc
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
256274 |
|
Pollutant: |
Zinc |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 6 samples exceeded the water quality threshold for Zinc. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved zinc criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 81 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2020-04-30 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136101, Zinc
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
256272 |
|
Pollutant: |
Zinc |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 6 samples exceeded the water quality threshold for Zinc. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved zinc criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 81 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750371 (RSW-002). |
Temporal Representation: |
The samples were collected between the dates of 2020-04-30 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136101, Zinc
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
256259 |
|
Pollutant: |
Zinc |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
3 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Zinc. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved zinc criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 81 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2020-04-30 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136101, Zinc
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
256287 |
|
Pollutant: |
Zinc |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 6 samples exceeded the water quality threshold for Zinc. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved zinc criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 81 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2020-04-30 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136101, Zinc
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
256171 |
|
Pollutant: |
Zinc |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
8 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for Zinc. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved zinc criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 81 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2018-10-02 and 2020-02-04 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136101, Zinc
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
256141 |
|
Pollutant: |
Zinc |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
7 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 7 samples exceeded the water quality threshold for Zinc. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved zinc criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 81 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2018-10-02 and 2020-02-04 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136101, Zinc
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
256270 |
|
Pollutant: |
Zinc |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 6 samples exceeded the water quality threshold for Zinc. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved zinc criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 81 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2020-04-30 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136101, Zinc
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
251579 |
|
Pollutant: |
Zinc |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed Southern California Bight Project 2018 data for Santa Clara River Estuary to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Zinc . |
Data Reference: |
WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The evaluation guideline for zinc is the effects range median value of 410 PPM (ug/g) dry weight (Long et al., 1995). |
Guideline Reference: |
Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): B18-10658 (B18-10658). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2018-09-28 to 2018-09-28 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 136101, Zinc
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
256122 |
|
Pollutant: |
Zinc |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
8 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for Zinc. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved zinc criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 81 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2018-10-02 and 2020-02-04 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136090, Chlorine
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253852 |
|
Pollutant: |
Chlorine |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
76 |
Number of Exceedances: |
33 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 33 of 76 samples exceeded the water quality threshold for Chlorine, Total Residual. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: Chlorine residual shall not be present in surface water any concentration that causes impairment of beneficial uses. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The USEPA recommended chlorine criterion for the protection of aquatic life in saline water is 7.5 ug/L (4-day average). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750371 (RSW-002). |
Temporal Representation: |
The samples were collected between the dates of 2018-10-02 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136090, Chlorine
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253830 |
|
Pollutant: |
Chlorine |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
76 |
Number of Exceedances: |
42 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 42 of 76 samples exceeded the water quality threshold for Chlorine, Total Residual. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: Chlorine residual shall not be present in surface water any concentration that causes impairment of beneficial uses. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The USEPA recommended chlorine criterion for the protection of aquatic life in saline water is 7.5 ug/L (4-day average). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2018-10-02 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136090, Chlorine
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253933 |
|
Pollutant: |
Chlorine |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
54 |
Number of Exceedances: |
50 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 50 of 54 samples exceeded the water quality threshold for Chlorine, Total Residual. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: Chlorine residual shall not be present in surface water any concentration that causes impairment of beneficial uses. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The USEPA recommended chlorine criterion for the protection of aquatic life in saline water is 7.5 ug/L (4-day average). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2018-10-02 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136090, Chlorine
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253668 |
|
Pollutant: |
Chlorine |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
76 |
Number of Exceedances: |
33 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 33 of 76 samples exceeded the water quality threshold for Chlorine, Total Residual. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: Chlorine residual shall not be present in surface water any concentration that causes impairment of beneficial uses. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The USEPA recommended chlorine criterion for the protection of aquatic life in saline water is 7.5 ug/L (4-day average). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750371 (RSW-002). |
Temporal Representation: |
The samples were collected between the dates of 2018-10-02 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136090, Chlorine
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253651 |
|
Pollutant: |
Chlorine |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
76 |
Number of Exceedances: |
64 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 64 of 76 samples exceeded the water quality threshold for Chlorine, Total Residual. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: Chlorine residual shall not be present in surface water any concentration that causes impairment of beneficial uses. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The USEPA recommended chlorine criterion for the protection of aquatic life in saline water is 7.5 ug/L (4-day average). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2018-10-02 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136090, Chlorine
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253644 |
|
Pollutant: |
Chlorine |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
76 |
Number of Exceedances: |
42 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 42 of 76 samples exceeded the water quality threshold for Chlorine, Total Residual. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: Chlorine residual shall not be present in surface water any concentration that causes impairment of beneficial uses. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The USEPA recommended chlorine criterion for the protection of aquatic life in saline water is 7.5 ug/L (4-day average). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2018-10-02 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136090, Chlorine
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253937 |
|
Pollutant: |
Chlorine |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
54 |
Number of Exceedances: |
50 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 50 of 54 samples exceeded the water quality threshold for Chlorine, Total Residual. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: Chlorine residual shall not be present in surface water any concentration that causes impairment of beneficial uses. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The USEPA recommended chlorine criterion for the protection of aquatic life in saline water is 7.5 ug/L (4-day average). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2018-10-02 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136090, Chlorine
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253812 |
|
Pollutant: |
Chlorine |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
76 |
Number of Exceedances: |
64 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 64 of 76 samples exceeded the water quality threshold for Chlorine, Total Residual. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: Chlorine residual shall not be present in surface water any concentration that causes impairment of beneficial uses. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The USEPA recommended chlorine criterion for the protection of aquatic life in saline water is 7.5 ug/L (4-day average). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Current as of 08/03/2016. |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2018-10-02 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136091, Copper
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
254293 |
|
Pollutant: |
Copper |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
3 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Copper. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved copper criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 3.1 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2020-04-30 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136091, Copper
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253996 |
|
Pollutant: |
Copper |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
10 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 1 of 10 samples exceeded the water quality threshold for Copper. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved copper criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 3.1 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-03-03 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136091, Copper
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253974 |
|
Pollutant: |
Copper |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
5 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 5 samples exceeded the water quality threshold for Copper. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved copper criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 3.1 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2019-11-05 and 2020-03-03 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136091, Copper
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
254045 |
|
Pollutant: |
Copper |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 1 of 6 samples exceeded the water quality threshold for Copper. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved copper criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 3.1 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2020-04-30 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136091, Copper
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
254044 |
|
Pollutant: |
Copper |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 1 of 6 samples exceeded the water quality threshold for Copper. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved copper criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 3.1 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750371 (RSW-002). |
Temporal Representation: |
The samples were collected between the dates of 2020-04-30 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136091, Copper
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
254021 |
|
Pollutant: |
Copper |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
3 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 3 samples exceeded the water quality threshold for Copper. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved copper criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 3.1 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2020-04-30 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136091, Copper
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
254313 |
|
Pollutant: |
Copper |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 6 samples exceeded the water quality threshold for Copper. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved copper criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 3.1 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2020-04-30 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136091, Copper
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
254040 |
|
Pollutant: |
Copper |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 1 of 6 samples exceeded the water quality threshold for Copper. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved copper criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 3.1 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2020-04-30 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136091, Copper
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
254180 |
|
Pollutant: |
Copper |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 1 of 6 samples exceeded the water quality threshold for Copper. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved copper criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 3.1 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750371 (RSW-002). |
Temporal Representation: |
The samples were collected between the dates of 2020-04-30 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136091, Copper
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253973 |
|
Pollutant: |
Copper |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 6 samples exceeded the water quality threshold for Copper. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved copper criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 3.1 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2020-04-30 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136091, Copper
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
254203 |
|
Pollutant: |
Copper |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
10 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 1 of 10 samples exceeded the water quality threshold for Copper. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved copper criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 3.1 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-03-03 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136091, Copper
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
253997 |
|
Pollutant: |
Copper |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
9 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 1 of 9 samples exceeded the water quality threshold for Copper. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved copper criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 3.1 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2019-02-05 and 2020-03-03 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136091, Copper
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
247680 |
|
Pollutant: |
Copper |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed Southern California Bight Project 2018 data for Santa Clara River Estuary to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Copper . |
Data Reference: |
WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The evaluation guideline for copper is the effects range median (ERM) value of 270 PPM (ug/g) dry weight (Long et al., 1995). |
Guideline Reference: |
Incidence of adverse biological effects within ranges of chemical concentrations in marine and estuary sediments. Environmental Management. 19, (1): 81-97 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): B18-10658 (B18-10658). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2018-09-28 to 2018-09-28 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 136091, Copper
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
247316 |
|
Pollutant: |
Copper |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed Southern California Bight Project 2018 data for Santa Clara River Estuary to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Copper . |
Data Reference: |
WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The evaluation guideline for copper is the effects range median (ERM) value of 270 PPM (ug/g) dry weight (Long et al., 1995). |
Guideline Reference: |
Incidence of adverse biological effects within ranges of chemical concentrations in marine and estuary sediments. Environmental Management. 19, (1): 81-97 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): B18-10658 (B18-10658). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2018-09-28 to 2018-09-28 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 136091, Copper
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
254271 |
|
Pollutant: |
Copper |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
5 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 5 samples exceeded the water quality threshold for Copper. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved copper criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 3.1 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2019-11-05 and 2020-03-03 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136091, Copper
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
254223 |
|
Pollutant: |
Copper |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
9 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 1 of 9 samples exceeded the water quality threshold for Copper. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved copper criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 3.1 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2019-02-05 and 2020-03-03 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136092, Lead
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255021 |
|
Pollutant: |
Lead |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
8 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for Lead. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved lead criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 8.1 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2019-08-06 and 2020-03-03 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136092, Lead
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
254719 |
|
Pollutant: |
Lead |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
8 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for Lead. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved lead criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 8.1 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2019-08-06 and 2020-03-03 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136092, Lead
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
254976 |
|
Pollutant: |
Lead |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
8 |
Number of Exceedances: |
8 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 8 of 8 samples exceeded the water quality threshold for Lead. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved lead criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 8.1 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2019-08-06 and 2020-03-03 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136092, Lead
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
254975 |
|
Pollutant: |
Lead |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
5 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 5 samples exceeded the water quality threshold for Lead. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved lead criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 8.1 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2019-11-05 and 2020-03-03 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136092, Lead
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
249053 |
|
Pollutant: |
Lead |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed Southern California Bight Project 2018 data for Santa Clara River Estuary to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Lead . |
Data Reference: |
WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The evaluation guideline for lead is the probable effect level (PEL) of 112 mg/kg dry weight (MacDonald et al., 1996). |
Guideline Reference: |
Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): B18-10658 (B18-10658). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2018-09-28 to 2018-09-28 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 136092, Lead
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
254993 |
|
Pollutant: |
Lead |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
5 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 5 samples exceeded the water quality threshold for Lead. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved lead criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 8.1 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2019-11-05 and 2020-03-03 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136092, Lead
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
254746 |
|
Pollutant: |
Lead |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
8 |
Number of Exceedances: |
8 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 8 of 8 samples exceeded the water quality threshold for Lead. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved lead criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 8.1 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2019-08-06 and 2020-03-03 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136092, Lead
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
248851 |
|
Pollutant: |
Lead |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
Total |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed Southern California Bight Project 2018 data for Santa Clara River Estuary to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Lead . |
Data Reference: |
WQ data from the California Environmental Data Exchange Network assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The evaluation guideline for lead is the probable effect level (PEL) of 112 mg/kg dry weight (MacDonald et al., 1996). |
Guideline Reference: |
Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278 |
|
Spatial Representation: |
Data were collected from 1 station(s). Station Code(s): B18-10658 (B18-10658). |
Temporal Representation: |
Data for this waterbody were collected over the date range 2018-09-28 to 2018-09-28 |
Environmental Conditions: |
|
QAPP Information: |
SWRCB. 2018. This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
QAPP Information Reference(s): |
This is a placeholder reference for data that was collected after QAPP requirements were developed, but exempt from the requirements. |
|
Line of Evidence (LOE) for Decision ID 136093, Nickel
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255365 |
|
Pollutant: |
Nickel |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
20 |
Number of Exceedances: |
2 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 2 of 20 samples exceeded the water quality threshold for Nickel. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved nickel criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 8.2 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-17 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136093, Nickel
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255369 |
|
Pollutant: |
Nickel |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
20 |
Number of Exceedances: |
2 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 2 of 20 samples exceeded the water quality threshold for Nickel. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved nickel criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 8.2 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-17 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136093, Nickel
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255296 |
|
Pollutant: |
Nickel |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 1 of 6 samples exceeded the water quality threshold for Nickel. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved nickel criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 8.2 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750371 (RSW-002). |
Temporal Representation: |
The samples were collected between the dates of 2020-04-30 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136093, Nickel
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255366 |
|
Pollutant: |
Nickel |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
22 |
Number of Exceedances: |
16 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 16 of 22 samples exceeded the water quality threshold for Nickel. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved nickel criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 8.2 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136093, Nickel
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255324 |
|
Pollutant: |
Nickel |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
13 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 1 of 13 samples exceeded the water quality threshold for Nickel. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved nickel criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 8.2 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136093, Nickel
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255241 |
|
Pollutant: |
Nickel |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 1 of 6 samples exceeded the water quality threshold for Nickel. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved nickel criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 8.2 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750371 (RSW-002). |
Temporal Representation: |
The samples were collected between the dates of 2020-04-30 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136093, Nickel
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255323 |
|
Pollutant: |
Nickel |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
13 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 1 of 13 samples exceeded the water quality threshold for Nickel. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved nickel criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 8.2 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136093, Nickel
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255322 |
|
Pollutant: |
Nickel |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
22 |
Number of Exceedances: |
16 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 16 of 22 samples exceeded the water quality threshold for Nickel. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved nickel criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 8.2 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136093, Nickel
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255256 |
|
Pollutant: |
Nickel |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Commercial or recreational collection of fish, shellfish, or organisms |
|
Number of Samples: |
22 |
Number of Exceedances: |
8 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 8 of 22 samples exceeded the water quality threshold for Nickel. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The nickel criterion for the protection of human health from consumption of organisms only is 4,600 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136093, Nickel
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255217 |
|
Pollutant: |
Nickel |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Commercial or recreational collection of fish, shellfish, or organisms |
|
Number of Samples: |
20 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 20 samples exceeded the water quality threshold for Nickel. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The nickel criterion for the protection of human health from consumption of organisms only is 4,600 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-17 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136093, Nickel
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255297 |
|
Pollutant: |
Nickel |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Commercial or recreational collection of fish, shellfish, or organisms |
|
Number of Samples: |
6 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 6 samples exceeded the water quality threshold for Nickel. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The nickel criterion for the protection of human health from consumption of organisms only is 4,600 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750371 (RSW-002). |
Temporal Representation: |
The samples were collected between the dates of 2020-04-30 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136093, Nickel
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255200 |
|
Pollutant: |
Nickel |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Commercial or recreational collection of fish, shellfish, or organisms |
|
Number of Samples: |
13 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 13 samples exceeded the water quality threshold for Nickel. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The nickel criterion for the protection of human health from consumption of organisms only is 4,600 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-07 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136098, Selenium
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255631 |
|
Pollutant: |
Selenium |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
9 |
Number of Exceedances: |
9 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 9 of 9 samples exceeded the water quality threshold for Selenium. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved selenium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 71 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2019-03-05 and 2020-03-03 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136098, Selenium
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255648 |
|
Pollutant: |
Selenium |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 6 samples exceeded the water quality threshold for Selenium. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved selenium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 71 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2019-03-05 and 2020-03-03 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136098, Selenium
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255647 |
|
Pollutant: |
Selenium |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
9 |
Number of Exceedances: |
9 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 9 of 9 samples exceeded the water quality threshold for Selenium. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved selenium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 71 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2019-03-05 and 2020-03-03 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136098, Selenium
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255674 |
|
Pollutant: |
Selenium |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
9 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 9 samples exceeded the water quality threshold for Selenium. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved selenium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 71 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2019-03-05 and 2020-03-03 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136098, Selenium
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255590 |
|
Pollutant: |
Selenium |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 6 samples exceeded the water quality threshold for Selenium. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved selenium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 71 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2019-03-05 and 2020-03-03 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136098, Selenium
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255438 |
|
Pollutant: |
Selenium |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Commercial or recreational collection of fish, shellfish, or organisms |
|
Number of Samples: |
9 |
Number of Exceedances: |
2 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 2 of 9 samples exceeded the water quality threshold for Selenium. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: Surface water shall not contain concentrations of chemical constituents in amounts that adversely affect any designated beneficial use. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The Selenium criteria for the protection of human health from the consumption of organisms only is 4200 ug/L (National Recommended Water Quality Criteria 2009). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2019-03-05 and 2020-03-03 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136098, Selenium
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255675 |
|
Pollutant: |
Selenium |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Commercial or recreational collection of fish, shellfish, or organisms |
|
Number of Samples: |
9 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 9 samples exceeded the water quality threshold for Selenium. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: Surface water shall not contain concentrations of chemical constituents in amounts that adversely affect any designated beneficial use. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The Selenium criteria for the protection of human health from the consumption of organisms only is 4200 ug/L (National Recommended Water Quality Criteria 2009). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2019-03-05 and 2020-03-03 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136098, Selenium
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255825 |
|
Pollutant: |
Selenium |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Commercial or recreational collection of fish, shellfish, or organisms |
|
Number of Samples: |
6 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 6 samples exceeded the water quality threshold for Selenium. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: Surface water shall not contain concentrations of chemical constituents in amounts that adversely affect any designated beneficial use. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
The Selenium criteria for the protection of human health from the consumption of organisms only is 4200 ug/L (National Recommended Water Quality Criteria 2009). |
Guideline Reference: |
National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2019-03-05 and 2020-03-03 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136098, Selenium
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255589 |
|
Pollutant: |
Selenium |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
9 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 0 of 9 samples exceeded the water quality threshold for Selenium. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The dissolved selenium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 71 ug/L (California Toxics Rule, 2000). |
Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2019-03-05 and 2020-03-03 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136100, Temperature, water
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255794 |
|
Pollutant: |
Temperature, water |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Fish Migration |
|
Number of Samples: |
50 |
Number of Exceedances: |
14 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 14 of 50 samples exceeded the water quality threshold for Temperature. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: The natural receiving water temperature of all regional waters shall not be altered unless it can be demonstrated to the satisfaction of the Regional Board that such alteration in temperature does not adversely affect beneficial uses. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
Inland Fishes of California (Moyle 1976) states that for rainbow trout the optimum range for growth and completion of most life stages is 13-21 degrees C (page 129). |
Guideline Reference: |
Inland Fishes of California |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750371 (RSW-002). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-14 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136100, Temperature, water
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255986 |
|
Pollutant: |
Temperature, water |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Fish Migration |
|
Number of Samples: |
50 |
Number of Exceedances: |
13 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 13 of 50 samples exceeded the water quality threshold for Temperature. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: The natural receiving water temperature of all regional waters shall not be altered unless it can be demonstrated to the satisfaction of the Regional Board that such alteration in temperature does not adversely affect beneficial uses. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
Inland Fishes of California (Moyle 1976) states that for rainbow trout the optimum range for growth and completion of most life stages is 13-21 degrees C (page 129). |
Guideline Reference: |
Inland Fishes of California |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-14 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136100, Temperature, water
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255790 |
|
Pollutant: |
Temperature, water |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Fish Spawning |
|
Number of Samples: |
50 |
Number of Exceedances: |
16 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 16 of 50 samples exceeded the water quality threshold for Temperature. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: The natural receiving water temperature of all regional waters shall not be altered unless it can be demonstrated to the satisfaction of the Regional Board that such alteration in temperature does not adversely affect beneficial uses. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
Inland Fishes of California (Moyle 1976) states that for rainbow trout the optimum range for growth and completion of most life stages is 13-21 degrees C (page 129). |
Guideline Reference: |
Inland Fishes of California |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-14 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136100, Temperature, water
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255923 |
|
Pollutant: |
Temperature, water |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Fish Spawning |
|
Number of Samples: |
37 |
Number of Exceedances: |
6 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 6 of 37 samples exceeded the water quality threshold for Temperature. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: The natural receiving water temperature of all regional waters shall not be altered unless it can be demonstrated to the satisfaction of the Regional Board that such alteration in temperature does not adversely affect beneficial uses. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
Inland Fishes of California (Moyle 1976) states that for rainbow trout the optimum range for growth and completion of most life stages is 13-21 degrees C (page 129). |
Guideline Reference: |
Inland Fishes of California |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-14 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136100, Temperature, water
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
256073 |
|
Pollutant: |
Temperature, water |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Fish Spawning |
|
Number of Samples: |
50 |
Number of Exceedances: |
13 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 13 of 50 samples exceeded the water quality threshold for Temperature. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: The natural receiving water temperature of all regional waters shall not be altered unless it can be demonstrated to the satisfaction of the Regional Board that such alteration in temperature does not adversely affect beneficial uses. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
Inland Fishes of California (Moyle 1976) states that for rainbow trout the optimum range for growth and completion of most life stages is 13-21 degrees C (page 129). |
Guideline Reference: |
Inland Fishes of California |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-14 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136100, Temperature, water
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255943 |
|
Pollutant: |
Temperature, water |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Fish Spawning |
|
Number of Samples: |
50 |
Number of Exceedances: |
14 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 14 of 50 samples exceeded the water quality threshold for Temperature. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: The natural receiving water temperature of all regional waters shall not be altered unless it can be demonstrated to the satisfaction of the Regional Board that such alteration in temperature does not adversely affect beneficial uses. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
Inland Fishes of California (Moyle 1976) states that for rainbow trout the optimum range for growth and completion of most life stages is 13-21 degrees C (page 129). |
Guideline Reference: |
Inland Fishes of California |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750371 (RSW-002). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-14 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136100, Temperature, water
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255815 |
|
Pollutant: |
Temperature, water |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Fish Migration |
|
Number of Samples: |
37 |
Number of Exceedances: |
6 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 6 of 37 samples exceeded the water quality threshold for Temperature. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: The natural receiving water temperature of all regional waters shall not be altered unless it can be demonstrated to the satisfaction of the Regional Board that such alteration in temperature does not adversely affect beneficial uses. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
Inland Fishes of California (Moyle 1976) states that for rainbow trout the optimum range for growth and completion of most life stages is 13-21 degrees C (page 129). |
Guideline Reference: |
Inland Fishes of California |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-14 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136100, Temperature, water
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255726 |
|
Pollutant: |
Temperature, water |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Fish Migration |
|
Number of Samples: |
50 |
Number of Exceedances: |
16 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 16 of 50 samples exceeded the water quality threshold for Temperature. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The Water Quality Control Plan for the Los Angeles Region states that: The natural receiving water temperature of all regional waters shall not be altered unless it can be demonstrated to the satisfaction of the Regional Board that such alteration in temperature does not adversely affect beneficial uses. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
Inland Fishes of California (Moyle 1976) states that for rainbow trout the optimum range for growth and completion of most life stages is 13-21 degrees C (page 129). |
Guideline Reference: |
Inland Fishes of California |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-14 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136095, pH
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
88249 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
493 |
Number of Exceedances: |
149 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
One hundred and forty nine of the 493 samples exceeded the objective. |
Data Reference: |
Data for Various Pollutants from the city of Ventura, 1997-2010. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The pH of all inland surface waters shall not be depressed below 6.5 or raised above 8.5 as a result of waste discharges. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Samples were collected from the following stations: 1 2 3 4 5 6 7 60 61 62 63 64 65 66 67 68 69 70 71 72 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 A-1 A-2 A-3 B-1 B-2 B-3 B-4 C-1 C-2 C-3 E-L1 E-L2 E-M1 E-M2 E-U1 E-U2 E-U3 MTS-2 MTS-2 MTS-2 (MZ-1) MTS-2 (MZ-6) MTS-3 MTS-3 (MZ-3) MTS-3 (MZ-7) MTS-R MTS-R (MZ-R) MZ-1 MZ-2 MZ-3 MZ-4 MZ-5 MZ-5b MZ-6 R2 R3 R4 R5 |
Temporal Representation: |
Samples were collected approximately twice a month from October 1997 to May 2010. |
Environmental Conditions: |
|
QAPP Information: |
A quality assurance project plan was not submitted with the data. |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 136095, pH
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
96039 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
5 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
Zero of the 5 samples exceed the objective for pH. |
Data Reference: |
Data for Various Pollutants from Wishtoyo Foundation's Ventura Coastkeeper, 2009-2010. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The pH of bays or estuaries shall not be depressed below 6.5 or raised above 8.5 as a result of waste discharges. (Water Quality Control Plan for the Los Angeles Region). |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Samples were collected at site SC-01 Vent WRF (Ventura WRF Outfall to Estuary) |
Temporal Representation: |
Samples were collected on the following dates:
1/29/2010, 2/26/2010, 6/25/2010, 7/17/2010, 8/15/2010 |
Environmental Conditions: |
|
QAPP Information: |
Wishtoyo Foundation volunteer monitoring QAPP was provided. |
QAPP Information Reference(s): |
Quality Assurance Project Plan from Wishtoyo Foundation. |
|
Line of Evidence (LOE) for Decision ID 136095, pH
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255667 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
48 |
Number of Exceedances: |
25 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 25 of 48 samples exceeded the water quality threshold for pH. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, Los Angeles Basin: the pH for inland surface waters, bays, or estuaries shall not be depressed below 6.5 or raised above 8.5 as a result of waste discharges. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750371 (RSW-002). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-14 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136095, pH
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255522 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
48 |
Number of Exceedances: |
25 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 25 of 48 samples exceeded the water quality threshold for pH. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, Los Angeles Basin: the pH for inland surface waters, bays, or estuaries shall not be depressed below 6.5 or raised above 8.5 as a result of waste discharges. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750371 (RSW-002). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-14 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136095, pH
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255544 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
50 |
Number of Exceedances: |
23 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 23 of 50 samples exceeded the water quality threshold for pH. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, Los Angeles Basin: the pH for inland surface waters, bays, or estuaries shall not be depressed below 6.5 or raised above 8.5 as a result of waste discharges. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-14 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136095, pH
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255452 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
50 |
Number of Exceedances: |
21 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 21 of 50 samples exceeded the water quality threshold for pH. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, Los Angeles Basin: the pH for inland surface waters, bays, or estuaries shall not be depressed below 6.5 or raised above 8.5 as a result of waste discharges. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-14 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136095, pH
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255709 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
50 |
Number of Exceedances: |
21 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 21 of 50 samples exceeded the water quality threshold for pH. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, Los Angeles Basin: the pH for inland surface waters, bays, or estuaries shall not be depressed below 6.5 or raised above 8.5 as a result of waste discharges. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750376 (RSW-005). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-14 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136095, pH
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255688 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
3 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 1 of 3 samples exceeded the water quality threshold for pH. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, Los Angeles Basin: the pH for inland surface waters, bays, or estuaries shall not be depressed below 6.5 or raised above 8.5 as a result of waste discharges. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2020-04-30 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136095, pH
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255687 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
50 |
Number of Exceedances: |
23 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 23 of 50 samples exceeded the water quality threshold for pH. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, Los Angeles Basin: the pH for inland surface waters, bays, or estuaries shall not be depressed below 6.5 or raised above 8.5 as a result of waste discharges. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750374 (RSW-003). |
Temporal Representation: |
The samples were collected between the dates of 2018-08-14 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|
Line of Evidence (LOE) for Decision ID 136095, pH
|
Region 4 |
Santa Clara River Estuary |
|
|
LOE ID: |
255433 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Marine Habitat |
|
Number of Samples: |
3 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed eSMR_Ventura WRF data for Santa Clara River Estuary to determine beneficial use support and results are as follows: 1 of 3 samples exceeded the water quality threshold for pH. |
Data Reference: |
WQ data from the California Integrated Water Quality System (CIWQS) assembled for the 2024 Integrated Report in Region 4. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Water Quality Control Plan, Los Angeles Basin: the pH for inland surface waters, bays, or estuaries shall not be depressed below 6.5 or raised above 8.5 as a result of waste discharges. |
Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The samples were collected at 1 monitoring site: 750375 (RSW-004). |
Temporal Representation: |
The samples were collected between the dates of 2020-04-30 and 2020-09-30 |
Environmental Conditions: |
|
QAPP Information: |
Ventura Countywide Stormwater Quality 9-28 December 2015 Management Program.2015.2014-2015 Annual Report |
QAPP Information Reference(s): |
2014-2015 Annual Report |
|