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

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:

Ambient Water Quality Criteria for Bacteria - 1986. EPA440/5-84-002

Evaluation Guideline:

The geometric mean for entercoccus shall not exceed more than 33/100ml. USEPA Ambient Water Quality Criteria for Bacteria 1986.

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 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:

Number of Exceedances:

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:

California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009

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:

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:

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Eleven of the 11 geomeans exceeded the total coliform guideline.

Data Reference:

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:

Draft Guidance for Fresh Water Beaches. Last Update: May 8, 2006. Initial Draft: November 1997. California Department of Public Health.

Evaluation Guideline:

The geometric mean for total coliform shall not exceed more than 1000/100ml. Guidance for Fresh Water Beaches (CDPH 2011).

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:

81346

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

Number of Exceedances:

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:

California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009

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:

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:

Number of Exceedances:

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:

California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009

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:

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:

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Two of the 11 geomeans exceeded the fecal coliform guideline.

Data Reference:

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:

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:

Number of Exceedances:

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:

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Unspecified

Objective/Criterion Reference:

Evaluation Guideline:

Unspecified

Guideline Reference:

Orange County Coast Keeper Coastal Watersheds Project

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:

Number of Exceedances:

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:

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:

Number of Exceedances:

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:

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Unspecified

Objective/Criterion Reference:

Evaluation Guideline:

Unspecified

Guideline Reference:

Orange County Coast Keeper Coastal Watersheds Project

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:

Number of Exceedances:

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:

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:

Number of Exceedances:

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:

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Dissolved

Beneficial Use:

Warm Freshwater Habitat

Number of Samples:

Number of Exceedances:

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: