Final California 2020 Integrated Report (303(d) List/305(b) Report)

Supporting Information

Regional Board 8 - Santa Ana Region

Water Body Name: Buck Gully Creek
Water Body ID: CAR8011100020011005142440
Water Body Type: River & Stream
 
DECISION ID
97620
Region 8     
Buck Gully Creek
 
Pollutant: Indicator Bacteria
Final Listing Decision: Do Not Delist from 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not Delist from 303(d) list (TMDL required list)(2016)
Revision Status Original
Sources: A Source Unknown
Expected TMDL Completion Date: 2019
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA 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.

Nine (9) lines of evidence are available in the administrative record to assess this pollutant.

Zero (0) of 0 samples exceed the E. coli Geomean Objective.
Twenty Three (23) of 68 samples exceed the E. coli Single Sample Objective.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification for placing this water segment-pollutant combination on the CWA section 303(d) List.

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. Zero (0) of the 0 samples exceed the E. coli Geomean Objective, and this sample size is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. 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 CWA section 303(d) List.
4. Twenty Three (23) of the 68 samples exceed the E. coli Single Sample Objective, and this exceeds the frequency listed in table 3.2.
5. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.

303(d) listing decisions made prior to 2006 were not held in an assessment database. The Regional Boards will update this decision when new data and information become available and are assessed.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 97620, Indicator Bacteria
Region 8     
Buck Gully Creek
 
LOE ID: 81340
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 11
Number of Exceedances: 11
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: Eleven of the 11 geomeans exceeded the entercoccus guideline.
Data Reference: Data for Region 8 Beach Watch.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses. Water Quality Control Plan for the Santa Ana River Basin.
Objective/Criterion Reference: Water Quality Control Plan, Santa Ana River Basin
 
Evaluation Guideline: The geometric mean for entercoccus shall not exceed more than 33/100ml. USEPA Ambient Water Quality Criteria for Bacteria 1986.
Guideline Reference: Ambient Water Quality Criteria for Bacteria - 1986. EPA440/5-84-002
 
Spatial Representation: The samples were collected at station Buck Gully.
Temporal Representation: The samples were collected approximately twice a month from Febuary 2009 to October 2009.
Environmental Conditions:
QAPP Information: The samples were collected by Orange County Environmental Health for the Beach Watch Program.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 97620, Indicator Bacteria
Region 8     
Buck Gully Creek
 
LOE ID: 81337
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 22
Number of Exceedances: 14
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Water Board staff assessed BeachWatch data for Buck Gully Creek to determine beneficial use support and results are as follows: 14 of 22 samples exceed the criterion for Enterococci.
Data Reference: Data for Region 8 Beach Watch.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: California Ocean Plan (SWRCB 2009) single sample maximum states that enterococcus density shall not exceed 104 per 100 mL.
Objective/Criterion Reference: California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for Buck Gully Creek was collected at 1 monitoring site [ BUCK GULLY]
Temporal Representation: Data was collected over the time period 2/5/2009-10/27/2009.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The samples were collected for the Beach Watch program.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 97620, Indicator Bacteria
Region 8     
Buck Gully Creek
 
LOE ID: 81349
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 11
Number of Exceedances: 11
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: Eleven of the 11 geomeans exceeded the total coliform guideline.
Data Reference: Data for Region 8 Beach Watch.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses. Water Quality Control Plan for the Santa Ana River Basin.
Objective/Criterion Reference: Water Quality Control Plan, Santa Ana River Basin
 
Evaluation Guideline: The geometric mean for total coliform shall not exceed more than 1000/100ml. Guidance for Fresh Water Beaches (CDPH 2011).
Guideline Reference: Draft Guidance for Fresh Water Beaches. Last Update: May 8, 2006. Initial Draft: November 1997. California Department of Public Health.
 
Spatial Representation: The samples were collected at station Buck Gully.
Temporal Representation: The samples were collected approximately twice a month from Febuary 2009 to August 2009.
Environmental Conditions:
QAPP Information: The samples were collected by Orange County Environmental Health for the Beach Watch Program.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 97620, Indicator Bacteria
Region 8     
Buck Gully Creek
 
LOE ID: 81346
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 22
Number of Exceedances: 1
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Water Board staff assessed BeachWatch data for Buck Gully Creek to determine beneficial use support and results are as follows: 1 of 22 samples exceed the criterion for Coliform, Total.
Data Reference: Data for Region 8 Beach Watch.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: California Ocean Plan (2009) single sample maximum states that total coliform density shall not exceed 10,000 per 100 mL
Objective/Criterion Reference: California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for Buck Gully Creek was collected at 1 monitoring site [ BUCK GULLY]
Temporal Representation: Data was collected over the time period 2/5/2009-10/27/2009.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The samples were collected for the Beach Watch program.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 97620, Indicator Bacteria
Region 8     
Buck Gully Creek
 
LOE ID: 81341
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 22
Number of Exceedances: 1
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Water Board staff assessed BeachWatch data for Buck Gully Creek to determine beneficial use support and results are as follows: 1 of 22 samples exceed the criterion for Coliform, Fecal.
Data Reference: Data for Region 8 Beach Watch.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: California Ocean Plan (SWRCB 2009) single sample maximum states that fecal coliform density shall not exceed 400 per 100ml
Objective/Criterion Reference: California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for Buck Gully Creek was collected at 1 monitoring site [ BUCK GULLY]
Temporal Representation: Data was collected over the time period 2/5/2009-10/27/2009.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The samples were collected for the Beach Watch program.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 97620, Indicator Bacteria
Region 8     
Buck Gully Creek
 
LOE ID: 81344
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 11
Number of Exceedances: 2
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: Two of the 11 geomeans exceeded the fecal coliform guideline.
Data Reference: Data for Region 8 Beach Watch.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The geometric mean for fecal coliform shall not exceed more than 200/100ml. Water Quality Control Plan for the Santa Ana River Basin.
Objective/Criterion Reference: Water Quality Control Plan, Santa Ana River Basin
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were collected at station Buck Gully.
Temporal Representation: The samples were collected approximately twice a month from Febuary 2009 to August 2009.
Environmental Conditions:
QAPP Information: The samples were collected by Orange County Environmental Health for the Beach Watch Program.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 97620, Indicator Bacteria
Region 8     
Buck Gully Creek
 
LOE ID: 4403
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 0
Number of Exceedances: 0
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: Unspecified--This LOE is a placeholder to support a 303(d) listing decision made prior to 2006.
Data Reference: Placeholder reference pre-2006 303(d)
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Unspecified
Objective/Criterion Reference: Placeholder reference pre-2006 303(d)
 
Evaluation Guideline: Unspecified
Guideline Reference: Placeholder reference pre-2006 303(d)
 
Spatial Representation: Unspecified
Temporal Representation: Unspecified
Environmental Conditions: Unspecified
QAPP Information: Unspecified
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 97620, Indicator Bacteria
Region 8     
Buck Gully Creek
 
LOE ID: 21463
 
Pollutant: Escherichia coli (E. coli)
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Warm Freshwater Habitat
 
Number of Samples: 68
Number of Exceedances: 23
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Of the 68 single samples collected 23 exceeded EPA's Recommended Water Quality Criteria for single samples.
Data Reference: Orange County Coast Keeper Coastal Watersheds Project
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: USEPA Recommended Ambient Water Quality Criteria for Bacteria -1986: E. coli: log mean less than 126 organisms/100 mL based on five or more samples per 30¿day period, and single sample shall not exceed 235 organisms/100mL.
Objective/Criterion Reference: Ambient Water Quality Criteria for Bacteria - 1986. EPA440/5-84-002
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were collected at two stations in the Buck Gully: Site 1 and Site 2. Buck Gully 1 is Located in Newport Beach in the upper Buck Gully Creek near Poppy Street and Fifth Street intersection.
Buck Gully 2 is Located in Newport Beach in the lower Buck Gully Creek at little Corona Del Mar beach.
Temporal Representation: The samples were collected monthly starting on March 8, 2004 through April 13, 2006.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: The data's quality is deemed appropriate because it came from the Department of Pesticide Regulation.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 97620, Indicator Bacteria
Region 8     
Buck Gully Creek
 
LOE ID: 4404
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 0
Number of Exceedances: 0
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: Unspecified--This LOE is a placeholder to support a 303(d) listing decision made prior to 2006.
Data Reference: Placeholder reference pre-2006 303(d)
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Unspecified
Objective/Criterion Reference: Placeholder reference pre-2006 303(d)
 
Evaluation Guideline: Unspecified
Guideline Reference: Placeholder reference pre-2006 303(d)
 
Spatial Representation: Unspecified
Temporal Representation: Unspecified
Environmental Conditions: Unspecified
QAPP Information: Unspecified
QAPP Information Reference(s):
 
 
DECISION ID
73625
Region 8     
Buck Gully Creek
 
Pollutant: Ammonia (Unionized)
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: There was no new data considered in the 2014 Listing Cycle, this previously made decision will carryover. The following description applies to an earlier Listing Cycle.

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. None of the seventy-four (74) 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. None of seventy-four (74) samples exceeded the Basin Plan's 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.
 
Regional Board Decision Recommendation: This is a decision previously approved by the State Water Resources Control Board and the USEPA. No new data were assessed by the Regional Board for the current. The decision has not changed.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 73625, Ammonia (Unionized)
Region 8     
Buck Gully Creek
 
LOE ID: 8499
 
Pollutant: Ammonia (Unionized)
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Warm Freshwater Habitat
 
Number of Samples: 74
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Of the 74 samples taken, none exceeded the Basin Plan's objective.
Data Reference: Orange County Coast Keeper Coastal Watersheds Project
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Basin Plan Objective: The objective varies according to the temperature of the water being sampled and ranged during the sampling period as follows: 0.13 mg/l - 0.51 mg/l
Objective/Criterion Reference: Water Quality Control Plan for the Santa Ana River Basin
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were collected at two stations in Buck Gully: Buck Gully 1 (bg1) and Buck Gully (bg2)
Temporal Representation: The samples were taken monthly starting with 3/8/2004 through 4/13/2006
Environmental Conditions:
QAPP Information: The data's quality is deemed acceptable because it was collected under the auspices of a Regional Board staff's approved quality assurance plan.
QAPP Information Reference(s):
 
 
DECISION ID
76825
Region 8     
Buck Gully Creek
 
Pollutant: Temperature, water
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: There was no new data considered in the 2014 Listing Cycle, this previously made decision will carryover. The following description applies to an earlier Listing Cycle.

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.

1 line of evidence are available in the administrative record to assess this pollutant. Zero of the seventy-seven 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. Zero of seventy-seven 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.
 
Regional Board Decision Recommendation: This is a decision previously approved by the State Water Resources Control Board and the USEPA. No new data were assessed by the Regional Board for the current. The decision has not changed.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 76825, Temperature, water
Region 8     
Buck Gully Creek
 
LOE ID: 28936
 
Pollutant: Temperature, water
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Warm Freshwater Habitat
 
Number of Samples: 77
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Of the 77 samples collected, 0 exceeded the Basin Plan Objective.
Data Reference: Orange County Coast Keeper Coastal Watersheds Project
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Temperature objectives for natural receiving water are specified in the ¿Water Quality Control Plan.¿ The natural receiving water temperature of inland surface 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. The temperature of waters designated WARM shall not be raised above 90°F June through October or above 78°F during the rest of the year as a result of controllable water quality factors.
Objective/Criterion Reference: Water Quality Control Plan for the Santa Ana River Basin
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were collected at two stations: Buck Gully 1 and Buck Gully 2
Temporal Representation: The samples were collected monthly starting on 3/8/2004 through 4/13/2006.
Environmental Conditions:
QAPP Information: The data's quality is deemed acceptable because it was collected under the auspices of a Regional Board staff's approved quality assurance plan.
QAPP Information Reference(s):
 
 
DECISION ID
73190
Region 8     
Buck Gully Creek
 
Pollutant: pH
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the section 303(d) list under section three (3) of the Listing Policy. Under section 3.2, a single line of evidence is necessary to assess listing status.

Two (2) lines of evidence are available in the administrative record to assess this pollutant. One (1) of the seventy-nine (79) 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. One (1) of seventy-nine (79) samples exceeded the water quality 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.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 73190, pH
Region 8     
Buck Gully Creek
 
LOE ID: 81345
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Warm Freshwater Habitat
 
Number of Samples: 1
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Numeric data generated from 1 sample of pH data had no exceedences.
Data Reference: Data for bacteria in various waterbodies, Feb. 2005-May 2007
 
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, Santa Ana River Basin
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Samples were collected from the Buck Gully - fresh water station.
Temporal Representation: One sample was collected on 5/5/2007.
Environmental Conditions:
QAPP Information: NPDES quality assurance.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 73190, pH
Region 8     
Buck Gully Creek
 
LOE ID: 21441
 
Pollutant: pH
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Warm Freshwater Habitat
 
Number of Samples: 78
Number of Exceedances: 1
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Of the 78 samples taken 1 exceeded the Basin Plan's objective. The exceedance occurred in Site 2 of Buck Gully Creek.
Data Reference: Orange County Coast Keeper Coastal Watersheds Project
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Basin Plan Objective: The ph of inland surface waters shall not be raised above 8.5 pH units or depressed below 6.5 pH units as a result of controllable water quality factors.
Objective/Criterion Reference: Water Quality Control Plan for the Santa Ana River Basin
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were collected at two stations in the Buck Gully Creek Channel: Site 1 and Site 2. Site 1 is Located in Newport Beach in the Upper Buck Gully creek near the Poppy Street and Fifth Street intersection. Site 2 is located in Newport Beach in the Lower Buck Gully Creek at little Corona Del Mar Beach.
Temporal Representation: The samples were taken monthly starting with 3/8/2004 through 4/13/2006.
Environmental Conditions:
QAPP Information: The data's quality is deemed acceptable because it was collected under the auspices of a Regional Board staff's approved quality assurance plan.
QAPP Information Reference(s):