Final 2008 California 303(d)/305(b) Integrated Report

Supporting Information

Regional Board 8 - Santa Ana Region

Water Body Name: Hole Lake
Water Body ID: CAL8012600020080922112714
Water Body Type: Lake & Reservoir
 
DECISION ID
15927
 
Pollutant: Chloride
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: New Decision
Revision Status Revised
Impairment from Pollutant or Pollution: Pollutant
 
Weight of Evidence: This pollutant is being considered for placement on the section 303(d) list under section 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status.

One (1) line of evidence is available in the administrative record to assess this pollutant. Seventy-eight (78) of the samples exceed the water quality objective.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Seventy-eight (78) of eighty-one (81) samples exceeded the Basin Plan Objective and this does exceed the allowable frequency listed in Table 3.2 of the Listing Policy. However, the water quality standard associated with this pollutant is deemed inappropriate to assess the groundwater beneficial use.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
RWQCB Board Decision / Staff Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. RWQCB recommends not listing this waterbody for this mineral constituent because the GWR beneficial use assessment is more correctly assessed using actual groundwater data. The surface water objective for this mineral constituent was tied to groundwater objectives for this constituent that was deleted from the Basin Plan (Resolution No. R8-2004-0001). Stakeholders have indicated their intent to re-visit the appropriateness of the surface water objective for this and other individual mineral objectives as part of the ongoing TDS/Nitrogen Task Force.
 
SWRCB Board Decision / Staff Recommendation:
 
USEPA Decision:
 
 
Lines of Evidence (LOEs) for Decision ID 15927
 
LOE ID: 25910
 
Pollutant: Chloride
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Warm Freshwater Habitat
Aquatic Life Use: Warm Freshwater Habitat
 
Number of Samples: 81
Number of Exceedances: 78
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Of the 81 samples taken, 78 exceeded the Basin Plan's Objective. This data was compiled by Wildermouth Environmental Services on behalf of the dischargers to the Santa Ana River Watershed.
Data Reference: 2006 HCMP Database
 
Water Quality Objective/Criterion: Santa Ana Region Basin Plan: 140 mg/l
Objective/Criterion Reference: Water Quality Control Plan-Santa Ana Region
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were taken at one location, the outlet, in Hole Lake.
Temporal Representation: The samples were taken on 7/2/2003, 8/6/2003, 9/4/2003, 9/11/2003, 1/26/2004, 2/11/2004, 3/29/2004, 4/15/2004,
5/5/2004, 5/19/2004, 6/15/2004, 7/13/2004, 7/28/2004
8/12/2004, 8/23/2004, 9/21/2004, 10/6/2004, 10/21/2004
11/4/2004, 11/17/2004, 12/2/2004, 12/14/2004, 1/26/2005
2/9/2005, 3/3/2005, 3/17/2005, 3/30/2005, 4/15/2005,
4/15/2005, 4/27/2005, 4/27/2005, 5/11/2005, 5/24/2005
6/6/2005, 6/29/2005, 7/13/2005, 7/13/2005, 7/28/2005
7/28/2005, 8/10/2005, 8/24/2005, 9/7/2005, 9/21/2005
10/5/2005, 10/20/2005, 11/2/2005, 11/16/2005, 12/1/2005
12/15/2005, 12/29/2005, 1/12/2006, 1/30/2006, 2/8/2006
2/22/2006, 3/9/2006, 3/23/2006, 4/10/2006, 4/24/2006, 5/5/2006, 5/17/2006, 6/2/2006, 6/14/2006, 6/28/2006, 7/12/2006, 7/26/2006, 8/9/2006, 8/23/2006, 9/6/2006, 9/20/2006, 10/4/2006, 10/18/2006, 11/1/2006, 11/15/2006, 11/29/2006, 12/13/2006, 12/13/2006, 12/27/2006, 1/10/2007, 1/24/2007, 2/7/2007, 2/21/2007
Environmental Conditions: The samples were taken during wet and dry seasons.
QAPP Information: The data's quality is deemed acceptable because it was submitted by an NPDES discharger in accordance with its Monitoring and Reporting Requirements.
QAPP Information Reference(s):
 
DECISION ID
16434
 
Pollutant: Salinity/TDS/Chlorides
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: New Decision
Revision Status Revised
Impairment from Pollutant or Pollution: Pollutant
 
Weight of Evidence: This pollutant is being considered for placement on the section 303(d) list under section 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status.

One (1) line of evidence is available in the administrative record to assess this pollutant. Seventy-three (73) of the samples exceed the water quality objective.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Seventy-three (73) of seventy-nine (79) samples exceeded the Basin Plan Objective and this does exceed the allowable frequency listed in Table 3.2 of the Listing Policy. However, the water quality standard associated with this pollutant is deemed inappropriate to assess the groundwater beneficial use.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
RWQCB Board Decision / Staff Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. RWQCB recommends not listing this waterbody for this mineral constituent because the GWR beneficial use assessment is more correctly assessed using actual groundwater data. The surface water objective for this mineral constituent was tied to groundwater objectives for this constituent that was deleted from the Basin Plan (Resolution No. R8-2004-0001). Stakeholders have indicated their intent to re-visit the appropriateness of the surface water objective for this and other individual mineral objectives as part of the ongoing TDS/Nitrogen Task Force.
 
SWRCB Board Decision / Staff Recommendation:
 
USEPA Decision:
 
 
Lines of Evidence (LOEs) for Decision ID 16434
 
LOE ID: 25982
 
Pollutant: Salinity/TDS/Chlorides
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Warm Freshwater Habitat
Aquatic Life Use: Warm Freshwater Habitat
 
Number of Samples: 79
Number of Exceedances: 73
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Of the 79 samples collected, 73 exceeded the Basin Plan's Objective. The data was compiled by Wildermouth Environmental on behalf of the dischargers to the Santa Ana Region.
Data Reference: 2006 HCMP Database
 
Water Quality Objective/Criterion: Basin Plan Objective: TDS 700 mg/l
Objective/Criterion Reference: Water Quality Control Plan-Santa Ana Region
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were taken from one station, at the outlet, in Hole Lake.
Temporal Representation: The samples were taken on the following dates: 7/2/2003, 8/6/2003, 9/4/2003 ,9/11/2003, 1/26/2004, 2/11/2004, 3/29/2004, 4/15/2004, 5/5/2004, 5/19/2004, 6/15/2004, 7/13/2004, 7/28/2004, 8/12/2004, 8/23/2004, 9/21/2004, 10/6/2004, 10/21/2004, 11/4/2004, 11/17/2004, 12/2/2004, 12/14/2004, 1/26/2005, 2/9/2005, 3/3/2005, 3/17/2005, 3/30/2005, 4/15/2005, 4/27/2005, 5/11/2005, 5/24/2005, 6/6/2005, 6/29/2005, 7/13/2005, 7/13/2005, 7/28/2005, 7/28/2005, 8/10/2005, 8/24/2005, 9/7/2005, 9/21/2005, 10/5/2005, 10/20/2005, 11/2/2005, 11/16/2005, 12/1/2005, 12/15/2005, 12/29/2005, 1/12/2006, 1/30/2006, 2/8/2006, 2/22/2006, 3/9/2006, 3/23/2006, 4/10/2006, 4/24/2006, 5/5/2006, 5/17/2006, 6/2/2006, 6/14/2006, 6/28/2006, 7/12/2006, 7/26/2006, 8/9/2006, 8/23/2006, 9/6/2006, 9/20/2006, 10/4/2006, 10/18/2006, 11/1/2006, 11/15/2006, 11/29/2006, 12/13/2006, 12/13/2006, 12/27/2006, 1/10/2007, 1/24/2007, 2/7/2007, 2/21/2007
Environmental Conditions: The samples were taken during the wet and dry season.
QAPP Information: The data's quality is deemed acceptable because the data came from NPDES dischargers in compliance with their NPDES monitoring and reporting requirement.
QAPP Information Reference(s):
 
DECISION ID
16435
 
Pollutant: Sodium
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: New Decision
Revision Status Revised
Impairment from Pollutant or Pollution: Pollutant
 
Weight of Evidence: This pollutant is being considered for placement on the section 303(d) list under section 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status.

One (1) line of evidence is available in the administrative record to assess this pollutant. Seventy-six (76) of the samples exceed the water quality objective.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Seventy-six (76) of eighty (80) samples exceeded the Basin Plan Objective and this does exceed the allowable frequency listed in Table 3.2 of the Listing Policy. However, the water quality standard associated with this pollutant is deemed inappropriate to assess the groundwater beneficial use.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
RWQCB Board Decision / Staff Recommendation:
 
SWRCB Board Decision / Staff Recommendation:
 
USEPA Decision:
 
 
Lines of Evidence (LOEs) for Decision ID 16435
 
LOE ID: 25913
 
Pollutant: Sodium
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Warm Freshwater Habitat
Aquatic Life Use: Warm Freshwater Habitat
 
Number of Samples: 80
Number of Exceedances: 76
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Of the 80 samples collected, 76 exceeded the Basin Plan's Objective. This data was compiled by Wildermouth Environmental Services on behalf of the NPDES dischargers to the Santa Ana River Watershed.
Data Reference: 2006 HCMP Database
 
Water Quality Objective/Criterion: Santa Ana Region Basin Plan: Sodium - 110 mg/l
Objective/Criterion Reference: Water Quality Control Plan-Santa Ana Region
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were collected at one location, the outlet, on Hole Lake
Temporal Representation: The samples were collected on: 7/2/2003, 8/6/2003, 9/4/2003, 9/11/2003, 1/26/2004, 2/11/2004, 3/29/2004, 4/15/2004, 5/5/2004, 5/19/2004, 6/15/2004, 7/13/2004, 7/28/2004, 8/12/2004, 8/23/2004, 9/21/2004, 10/6/2004, 10/21/2004, 11/4/2004, 11/17/2004, 12/2/2004, 12/14/2004, 1/26/2005, 2/9/2005, 3/3/2005, 3/17/2005, 3/30/2005, 4/15/2005, 4/15/2005, 4/27/2005, 4/27/2005, 5/11/2005, 5/24/2005, 6/6/2005, 6/29/2005, 7/13/2005, 7/13/2005, 7/28/2005, 7/28/2005, 8/10/2005, 8/24/2005, 9/7/2005, 9/21/2005, 10/5/2005, 10/20/2005, 11/2/2005, 11/16/2005, 12/1/2005, 12/15/2005, 12/29/2005, 1/12/2006, 1/30/2006, 2/8/2006, 2/22/2006, 3/9/2006, 3/23/2006, 4/10/2006, 4/24/2006, 5/5/2006, 5/17/2006, 6/2/2006, 6/14/2006, 6/28/2006, 7/12/2006, 7/26/2006, 8/9/2006, 8/23/2006, 9/6/2006, 9/20/2006, 10/4/2006, 10/18/2006, 11/1/2006, 11/15/2006, 11/29/2006, 12/13/2006, 12/27/2006, 1/10/2007, 1/24/2007, 2/7/2007, 2/21/2007
Environmental Conditions: The samples were collected during the wet and dry season.
QAPP Information: The data's quality is deemed acceptable because it was submitted by an NPDES discharger in accordance with its Monitoring and Reporting Requirements.
QAPP Information Reference(s):
 
DECISION ID
16436
 
Pollutant: Sulfates
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: New Decision
Revision Status Revised
Impairment from Pollutant or Pollution: Pollutant
 
Weight of Evidence: This pollutant is being considered for placement on the section 303(d) list under section 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status.

One (1) line of evidence is available in the administrative record to assess this pollutant. Seventy-three (73) of the samples exceed the water quality objective.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Seventy-three (73) of eighty-two (82) samples exceeded the Basin Plan Objective and this does exceed the allowable frequency listed in Table 3.2 of the Listing Policy. However, the water quality standard associated with this pollutant is deemed inappropriate to assess the groundwater beneficial use.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
RWQCB Board Decision / Staff Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. RWQCB recommends not listing this waterbody for this mineral constituent because the GWR beneficial use assessment is more correctly assessed using actual groundwater data. The surface water objective for this mineral constituent was tied to groundwater objectives for this constituent that was deleted from the Basin Plan (Resolution No. R8-2004-0001). Stakeholders have indicated their intent to re-visit the appropriateness of the surface water objective for this and other individual mineral objectives as part of the ongoing TDS/Nitrogen Task Force.
 
SWRCB Board Decision / Staff Recommendation:
 
USEPA Decision:
 
 
Lines of Evidence (LOEs) for Decision ID 16436
 
LOE ID: 25976
 
Pollutant: Sulfates
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Warm Freshwater Habitat
Aquatic Life Use: Warm Freshwater Habitat
 
Number of Samples: 82
Number of Exceedances: 73
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Of the 82 samples collected, 73 exceeded the Basin Plan Objective. This data was compiled by Wildermouth Environmental on behalf of the dischargers to the Santa Ana River Watershed.
Data Reference: 2006 HCMP Database
 
Water Quality Objective/Criterion: Santa Ana Region Basin Plan: 150 mg/l
Objective/Criterion Reference: Water Quality Control Plan-Santa Ana Region
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were collected at one station, the outlet, in Hole Lake.
Temporal Representation: The samples were collected on: 7/2/2003, 8/6/2003, 9/4/2003, 9/11/2003, 1/26/2004, 2/11/2004, 3/29/2004, 4/15/2004, 5/5/2004, 5/19/2004, 6/15/2004, 7/13/2004, 7/28/2004, 8/12/2004, 8/23/2004, 9/21/2004, 10/6/2004, 10/21/2004, 11/4/2004, 11/17/2004, 12/2/2004, 12/14/2004, 1/26/2005, 2/9/2005, 3/3/2005, 3/17/2005, 3/30/2005, 4/15/2005, 4/15/2005, 4/27/2005, 5/11/2005, 5/24/2005, 6/6/2005, 6/29/2005, 7/13/2005, 7/13/2005, 7/28/2005, 7/28/2005, 8/10/2005, 8/24/2005, 9/7/2005, 9/21/2005, 10/5/2005, 10/20/2005, 11/2/2005, 11/16/2005, 12/1/2005, 12/15/2005, 12/29/2005, 1/12/2006,1/30/2006, 2/8/2006, 2/22/2006, 3/9/2006, 3/23/2006, 4/10/2006, 4/24/2006, 5/5/2006, 5/5/2006, 5/17/2006, 5/17/2006, 6/2/2006, 6/14/2006, 6/28/2006, 7/12/2006, 7/26/2006, 8/9/2006, 8/23/2006, 9/6/2006, 9/20/2006, 10/4/2006, 10/18/2006, 11/1/2006, 11/15/2006, 11/29/2006, 12/13/2006, 12/13/2006, 12/27/2006, 1/10/2007, 1/24/2007, 2/7/2007,2/21/2007
Environmental Conditions: The samples were taken during the wet and dry season.
QAPP Information: The data's quality is deemed acceptable because the data came from NPDES dischargers in compliance with their NPDES monitoring and reporting requirement.
QAPP Information Reference(s):
 
DECISION ID
16437
 
Pollutant: Total Nitrogen as N
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: New Decision
Revision Status Revised
Impairment from Pollutant or Pollution: Pollutant
 
Weight of Evidence: This pollutant is being considered for placement on the section 303(d) list under section 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status.

One (1) line of evidence is available in the administrative record to assess this pollutant. Forty (40) of the samples exceed the water quality objective.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Forty (40) of forty-three (43) samples exceeded the Basin Plan Objective and this does exceed the allowable frequency listed in Table 3.2 of the Listing Policy. However, the water quality standard associated with this pollutant is deemed inappropriate to assess the groundwater beneficial use.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
RWQCB Board Decision / Staff Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. RWQCB recommends not listing this waterbody for this mineral constituent because the GWR beneficial use assessment is more correctly assessed using actual groundwater data. The surface water objective for this mineral constituent was tied to groundwater objectives for this constituent that was deleted from the Basin Plan (Resolution No. R8-2004-0001). Stakeholders have indicated their intent to re-visit the appropriateness of the surface water objective for this and other individual mineral objectives as part of the ongoing TDS/Nitrogen Task Force.
 
SWRCB Board Decision / Staff Recommendation:
 
USEPA Decision:
 
 
Lines of Evidence (LOEs) for Decision ID 16437
 
LOE ID: 25987
 
Pollutant: Total Nitrogen as N
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Warm Freshwater Habitat
Aquatic Life Use: Warm Freshwater Habitat
 
Number of Samples: 43
Number of Exceedances: 40
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Of the 43 samples taken, 40 exceeded the Basin Plan Objective. This data was compiled by Wildermouth Environmental on behalf of the dischargers to the Santa Ana River Watershed.
Data Reference: 2006 HCMP Database
 
Water Quality Objective/Criterion: Basin Plan Objective: Total Inorganic Nitrogen - 10 mg/l
Objective/Criterion Reference: Water Quality Control Plan-Santa Ana Region
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were collected at one station, the outlet, in Hole Lake.
Temporal Representation: The samples were taken on: 4/10/2006, 4/10/2006, 4/24/2006, 4/24/2006, 5/5/2006, 5/5/2006, 5/17/2006, 6/2/2006, 6/2/2006, 6/14/2006, 6/14/2006, 6/28/2006, 6/28/2006, 7/12/2006, 7/12/2006, 7/12/2006, 7/26/2006, 7/26/2006, 7/26/2006, 8/9/2006, 8/9/2006, 8/23/2006, 8/23/2006, 9/6/2006, 9/6/2006, 9/20/2006, 9/20/2006, 10/4/2006, 10/4/2006, 10/18/2006, 10/18/2006, 11/1/2006, 11/1/2006, 11/15/2006, 11/15/2006, 11/29/2006, 11/29/2006, 12/13/2006, 12/27/2006, 1/10/2007, 1/24/2007, 2/7/2007, 2/21/2007
Environmental Conditions: The samples were taken during the wet and dry season.
QAPP Information: The data's quality is deemed acceptable because the data came from NPDES dischargers in compliance with their NPDES monitoring and reporting requirement.
QAPP Information Reference(s):
 
DECISION ID
16438
 
Pollutant: pH
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: New Decision
Revision Status Revised
Impairment from Pollutant or Pollution: Pollutant
 
Weight of Evidence: This pollutant is being considered for placement on the section 303(d) list under section 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status.

One (1) line of evidence is available in the administrative record to assess this pollutant. Four of the samples exceed the water quality objective.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Four (4) of seventy-five (75) samples exceeded the Basin Plan Objective and this does not exceed the allowable frequency listed in Table 3.2 of the Listing Policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
RWQCB Board Decision / Staff Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.
 
SWRCB Board Decision / Staff Recommendation:
 
USEPA Decision:
 
 
Lines of Evidence (LOEs) for Decision ID 16438
 
LOE ID: 25917
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Warm Freshwater Habitat
Aquatic Life Use: Warm Freshwater Habitat
 
Number of Samples: 75
Number of Exceedances: 4
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Of the 4 samples collected, 75 exceeded the Basin Plan's Objective. This data was compiled by Wildermouth Environmental Services on behalf of the dischargers to the Santa Ana River Watershed.
Data Reference: 2006 HCMP Database
 
Water Quality Objective/Criterion: Santa Ana Region Basin Plan: pH - 6.5 units to 8.5 units
Objective/Criterion Reference: Water Quality Control Plan-Santa Ana Region
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were taken at one location, the outlet, in Hole Lake.
Temporal Representation: The samples were collected on: 7/2/2003, 8/6/2003, 9/4/2003, 9/11/2003, 1/26/2004, 2/11/2004, 4/15/2004, 5/19/2004, 6/2/2004, 6/15/2004, 7/13/2004, 7/28/2004, 8/12/2004, 8/23/2004, 9/7/2004, 9/21/2004, 10/6/2004, 10/21/2004, 11/4/2004, 11/17/2004, 12/2/2004, 12/14/2004, 1/26/2005, 2/9/2005, 3/3/2005, 3/17/2005, 3/30/2005, 4/15/2005, 4/27/2005, 5/11/2005, 5/24/2005, 6/6/2005, 6/29/2005, 7/13/2005, 7/28/2005, 8/10/2005, 8/24/2005, 9/7/2005, 9/21/2005, 10/5/2005, 10/20/2005, 11/2/2005, 11/16/2005, 12/1/2005, 12/15/2005, 1/12/2006, 1/30/2006, 2/8/2006, 2/22/2006, 3/9/2006, 3/23/2006, 4/5/2006, 4/24/2006, 5/5/2006, 5/17/2006, 6/2/2006, 6/14/2006, 6/28/2006, 7/12/2006, 7/26/2006, 8/9/2006, 8/23/2006, 9/6/2006, 9/20/2006, 10/4/2006, 10/18/2006, 11/1/2006, 11/15/2006, 11/29/2006, 12/13/2006, 12/27/2006, 1/10/2007, 1/24/2007, 2/7/2007, 2/21/2007
Environmental Conditions: The samples were taken during the wet and dry season.
QAPP Information: The data's quality is deemed acceptable because it was submitted by an NPDES discharger in accordance with its Monitoring and Reporting Requirements.
QAPP Information Reference(s):