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DECISION ID |
16555 |
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| Pollutant: |
Enterococcus |
| 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 |
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| 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 line of evidence is available in the administrative record to assess this pollutant. None 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. None of 84 samples exceeded the AB 411 Standard 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. |
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| 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. |
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| SWRCB Board Decision / Staff Recommendation: |
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| USEPA Decision: |
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| LOE ID: |
8253 |
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| Pollutant: |
Enterococcus |
| LOE Subgroup: |
Pollutant-Water |
| Matrix: |
Water |
| Fraction: |
None |
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| Beneficial Use: |
Water Contact Recreation |
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| Number of Samples: |
84 |
| Number of Exceedances: |
0 |
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| Data and Information Type: |
PATHOGEN MONITORING |
| Data Used to Assess Water Quality: |
Of the 84 samples collected, 0 exceeded the standards/guidelines listed above. |
| Data Reference: |
Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency |
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| Water Quality Objective/Criterion: |
As stated in the California Ocean Plan, under the SWRCB Water-Contact Standards using a 30d geometric mean maximum, within a zone bounded by the shoreline and a distance of 1,000 feet from the shoreline or the 30-foot depth contour, whichever is further from the shoreline, and in areas outside this zone used for water contact sports, as determined by the Regional Board (i.e., waters designated as REC-1), but including all kelp* beds, the following bacterial objectives shall be maintained throughout the water column: Enterococcus density shall not exceed 35 per 100 ml |
| Objective/Criterion Reference: |
Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency |
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| Evaluation Guideline: |
Of the 84 samples collected, 0 exceeded the following criteria, or guidelines as stated in the Ocean Plan: Enterococcus <35MPN/100mL |
| Guideline Reference: |
Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency |
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| Spatial Representation: |
The 84 samples were collected at the Broadway station located in Sunset Beach. |
| Temporal Representation: |
The 84 samples were collected weekly between April 2004 and December 2006 |
| Environmental Conditions: |
The data spanned 3 entire years including wet and dry seasons. |
| QAPP Information: |
Data was collected by the Orange County Environmental Health Agency and provided to the Regional Board by the State Water Resources Control Board for the sole purpose of the water quality assessment and update of the 2008 303d list. The EPA Method/Analytical Detection Limit used was EPA_1600. |
| QAPP Information Reference(s): |
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DECISION ID |
16556 |
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| Pollutant: |
Fecal Coliform |
| 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 |
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| 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 line of evidence is available in the administrative record to assess this pollutant. None 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. None of 84 samples exceeded the AB 411 Standard 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. |
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| 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. |
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| SWRCB Board Decision / Staff Recommendation: |
|
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| USEPA Decision: |
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Lines of Evidence (LOEs) for Decision ID 16556 |
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| LOE ID: |
8255 |
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| Pollutant: |
Fecal Coliform |
| LOE Subgroup: |
Subgroup Missing |
| Matrix: |
Not Specified |
| Fraction: |
None |
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| Beneficial Use: |
Water Contact Recreation |
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| Number of Samples: |
84 |
| Number of Exceedances: |
0 |
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| Data and Information Type: |
Not Specified |
| Data Used to Assess Water Quality: |
Of the 84 samples collected, 0 exceeded the standards/guidelines listed above. |
| Data Reference: |
Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency |
| |
| Water Quality Objective/Criterion: |
As stated in the California Ocean Plan, under the SWRCB Water-Contact Standards using a 30d geometric mean maximum, within a zone bounded by the shoreline and a distance of 1,000 feet from the shoreline or the 30-foot depth contour, whichever is further from the shoreline, and in areas outside this zone used for water contact sports, as determined by the Regional Board (i.e., waters designated as REC-1), but including all kelp* beds, the following bacterial objectives shall be maintained throughout the water column: Fecal Coliform density shall not exceed 200 per 100ml |
| Objective/Criterion Reference: |
Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency |
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| Evaluation Guideline: |
Of the 84 samples collected, 0 exceed the following criteria or guidelines as stated in the Ocean Plan: Fecal Coliform <200MPN/100mL |
| Guideline Reference: |
Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency |
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| Spatial Representation: |
The 84 samples were collected at the Broadway station located in Sunset Beach. |
| Temporal Representation: |
The 84 were collected weekly between April 2004 and December 2006. |
| Environmental Conditions: |
The data spanned 3 entire years including wet and dry seasons. |
| QAPP Information: |
Data was collected by the Orange County Environmental Health Agency and provided to the Regional Board by the State Water Resources Control Board for the sole purpose of the water quality assessment and update of the 2008 303d list. The EPA Method/Analytical Detection Limit used was MF_APHA_9222_D. |
| QAPP Information Reference(s): |
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DECISION ID |
16557 |
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| Pollutant: |
Total Coliform |
| 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 |
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| 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. Eighty-three 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. None of 83 samples exceeded the AB 411 Standard 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. |
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| SWRCB Board Decision / Staff Recommendation: |
|
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| USEPA Decision: |
|
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Lines of Evidence (LOEs) for Decision ID 16557 |
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| LOE ID: |
8256 |
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| Pollutant: |
Total Coliform |
| LOE Subgroup: |
Pollutant-Water |
| Matrix: |
Water |
| Fraction: |
None |
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| Beneficial Use: |
Water Contact Recreation |
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| Number of Samples: |
83 |
| Number of Exceedances: |
0 |
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| Data and Information Type: |
PATHOGEN MONITORING |
| Data Used to Assess Water Quality: |
Of the 83 samples collected, 0 exceeded the standards/guidelines listed above. |
| Data Reference: |
Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency |
| |
| Water Quality Objective/Criterion: |
As stated in the California Ocean Plan, under the SWRCB Water-Contact Standards using a 30d geometric mean maximum, within a zone bounded by the shoreline and a distance of 1,000 feet from the shoreline or the 30-foot depth contour, whichever is further from the shoreline, and in areas outside this zone used for water contact sports, as determined by the Regional Board (i.e., waters designated as REC-1), but including all kelp* beds, the following bacterial objectives shall be maintained throughout the water column: Total Coliform density shall not exceed 1,000 per 100 |
| Objective/Criterion Reference: |
Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency |
| |
| Evaluation Guideline: |
Of the 83 samples collected, 0 exceed the following criteria, or guidelines as stated in the Ocean Plan: Total Coliform Standard in Ocean Plan and Total Coliform <1000MPN/100mL |
| Guideline Reference: |
Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency |
| |
| Spatial Representation: |
The 83 samples were collected at the Broadway station located in Sunset Beach. |
| Temporal Representation: |
The 83 samples were collected |
| Environmental Conditions: |
The data spanned 3 entire years including wet and dry seasons. |
| QAPP Information: |
Data was collected by the Orange County Environmental Health Agency and provided to the Regional Board by the State Water Resources Control Board for the sole purpose of the water quality assessment and update of the 2008 303d list. The EPA Method/Analytical Detection Limit used was MF_APHA_922_B. |
| QAPP Information Reference(s): |