Final California 2010 Integrated Report (303(d) List/305(b) Report)

Supporting Information

Regional Board 8 - Santa Ana Region

Water Body Name:	East Garden Grove Wintersburg Channel
Water Body ID:	CAR8011100020080924142217
Water Body Type:	River & Stream


DECISION ID	16848	Region 8
East Garden Grove Wintersburg Channel

Pollutant:	Temperature, water
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

Regional Board Conclusion:	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. Two line of evidence are available in the administrative record to assess this pollutant. One 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. One of 64 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:	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 the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.

USEPA Action (if applicable):

Line of Evidence (LOE) for Decision ID 16848, Temperature, water	Region 8
East Garden Grove Wintersburg Channel

LOE ID:

28954

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 29 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 one station: Wintersburg Channel 2 located in Huntington Beach at the lower part of Wintersburg Channel and at the Beach Blvd and Heil intersection

Temporal Representation:

The samples were collected monthly starting on 3/17/2004 through 3/30/2006.

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):

Line of Evidence (LOE) for Decision ID 16848, Temperature, water	Region 8
East Garden Grove Wintersburg Channel

LOE ID:

28947

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 35 samples collected, 1 exceeded the Basin Plan Objective. There were 10 samples taken between June and October and 0 exceeded. There 25 samples taken between November and May and 1 exceeded

Data Reference:

Orange County Coast Keeper Coastal Watersheds Project

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Santa Ana River Basin

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at one station: Wintersburg 1 which is located in Santa Ana in the upper part of Wintersburg channel on Euclid, just North to McFadden Ave

Temporal Representation:

The samples were collected monthly starting on 3/17/2004 through 3/30/2006.

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	16877	Region 8
East Garden Grove Wintersburg Channel

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

Regional Board Conclusion:	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. Two lines of evidence are available in the administrative record to assess this pollutant. One 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. One of sixty-nine 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:	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 the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.

USEPA Action (if applicable):

Line of Evidence (LOE) for Decision ID 16877, pH	Region 8
East Garden Grove Wintersburg Channel

LOE ID:

28965

Pollutant:

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 33 samples collected, 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 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 one station: Wintersburg Channel 2 located in Huntington Beach at the lower part of Wintersburg Channel and at the Beach Blvd and Heil intersection

Temporal Representation:

The samples were collected monthly starting on 3/17/2004 through 3/30/2006.

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):

Line of Evidence (LOE) for Decision ID 16877, pH	Region 8
East Garden Grove Wintersburg Channel

LOE ID:

28963

Pollutant:

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 36 samples collected, 1 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 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 one station: Wintersburg 1 which is located in Santa Ana in the upper part of Wintersburg channel on Euclid, just North to McFadden Ave

Temporal Representation:

The samples were collected monthly starting on 3/17/2004 through 3/30/2006.

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	16433	Region 8
East Garden Grove Wintersburg Channel

Pollutant:	Ammonia (Unionized)
Final Listing Decision:	List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Sources:	Source Unknown
Expected TMDL Completion Date:	2021
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	This pollutant is being considered for placement on the section 303(d) list under section 3.1 of the Listing Policy. Under section 3.1 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. Nine (9) 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 in favor of 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. Nine (9) of sixty-six (66) samples exceed the Basin Plan Objective and this exceeds the allowable frequency listed in Table 3.1 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 be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem.

USEPA Action (if applicable):	USEPA approved the listing of this water body as a water quality limited segment requiring a TMDL for this pollutant.

Line of Evidence (LOE) for Decision ID 16433, Ammonia (Unionized)	Region 8
East Garden Grove Wintersburg Channel

LOE ID:

28244

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 32 samples collected, 8 exceeded the standard

Data Reference:

Orange County Coast Keeper Coastal Watersheds Project

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

SARWQCB Basin Plan Objective: For waterbodies designated warm the Standard used varies according to a formula (SARWQCB 2008 Basin Plan Pg 4-7 through 4-9). This standard ranged from 0.19 mg/l to 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 taken from one station, Wintersberg Channel 2, located in Huntington Beach at the lower part of Wintersburg channel and at the Beach Blvd and Heil intersection.

Temporal Representation:

The samples were collected in 2004 and 2005 sometimes twice a month and sometimes once a month.

Environmental Conditions:

No information on environmental conditions were available that would change the way this data should be assessed.

QAPP Information:

The data generated by this project is deemed of acceptable quality for assessment purposes because a state approved QAPP was developed per the requirements of the Proposition 13 grant that funded this project.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 16433, Ammonia (Unionized)	Region 8
East Garden Grove Wintersburg Channel

LOE ID:

28242

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 thirty-four samples taken only one exceeded the standard.

Data Reference:

Orange County Coast Keeper Coastal Watersheds Project

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Santa Ana River Basin

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were taken at one station, Wintersberg 1, Located in Santa Ana in the upper part of Wintersburg channel, on Euclid, just north to McFadden Ave.

Temporal Representation:

The samples were collected in 2004 and 2005 sometimes once a month, and sometimes twice a month.

Environmental Conditions:

No environmental conditions have been reported that would affect how this dataset is to be assessed.

QAPP Information:

QAPP Information Reference(s):