| 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: |
Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available. |
| |
| 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. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
| |
| 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 it cannot be determined if applicable water quality standards are not being exceeded. |
| |
| |
Line of Evidence (LOE) for Decision ID 115457, pH
|
Region 9 |
San Elijo Pond (San Diego County) |
|
| |
| LOE ID: |
145540 |
| |
| Pollutant: |
pH |
| LOE Subgroup: |
Pollutant-Water |
| Matrix: |
Water |
| Fraction: |
None |
| |
| Beneficial Use: |
Estuarine Habitat |
| |
| Number of Samples: |
1 |
| Number of Exceedances: |
0 |
| |
| Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
| Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP RWB9 Monitoring data for San Elijo Pond (San Diego County) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. |
| Data Reference: |
Field, Habitat, Sediment, Tissue, Water data for the 2020/2022 integrated report in Region 9. |
| |
| SWAMP Data: |
SWAMP |
| |
| Water Quality Objective/Criterion: |
Ranges (pH) of 6.5 to 9.0 are considered harmless (Water Quality Control Plan, San Diego Basin). |
| Objective/Criterion Reference: |
Water Quality Control Plan for the San Diego Basin |
| |
| Evaluation Guideline: |
|
| Guideline Reference: |
| |
| Spatial Representation: |
The samples were collected at 1 monitoring site (904SNELPD) |
| Temporal Representation: |
The samples were collected between the dates of 2013-07-01 and 2013-07-01 |
| Environmental Conditions: |
|
| QAPP Information: |
SWAMP QAPrP 2008, Nagoda and Busse, 2013. Quality Assurance Project Plan for Screening of Cyanotoxins in Lakes/Reservoirs and Coastal Wetlands in the San Diego Region, SWAMP QAPrP 2017 |
| QAPP Information Reference(s): |
Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program |
| |
Line of Evidence (LOE) for Decision ID 115457, pH
|
Region 9 |
San Elijo Pond (San Diego County) |
|
| |
| LOE ID: |
145283 |
| |
| Pollutant: |
pH |
| LOE Subgroup: |
Pollutant-Water |
| Matrix: |
Water |
| Fraction: |
None |
| |
| Beneficial Use: |
Marine Habitat |
| |
| Number of Samples: |
1 |
| Number of Exceedances: |
0 |
| |
| Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
| Data Used to Assess Water Quality: |
Water Board staff assessed SWAMP RWB9 Monitoring data for San Elijo Pond (San Diego County) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for pH. |
| Data Reference: |
Field, Habitat, Sediment, Tissue, Water data for the 2020/2022 integrated report in Region 9. |
| |
| SWAMP Data: |
SWAMP |
| |
| Water Quality Objective/Criterion: |
Ranges (pH) of 6.5 to 9.0 are considered harmless (Water Quality Control Plan, San Diego Basin). |
| Objective/Criterion Reference: |
Water Quality Control Plan for the San Diego Basin |
| |
| Evaluation Guideline: |
|
| Guideline Reference: |
| |
| Spatial Representation: |
The samples were collected at 1 monitoring site (904SNELPD) |
| Temporal Representation: |
The samples were collected between the dates of 2013-07-01 and 2013-07-01 |
| Environmental Conditions: |
|
| QAPP Information: |
SWAMP QAPrP 2008, Nagoda and Busse, 2013. Quality Assurance Project Plan for Screening of Cyanotoxins in Lakes/Reservoirs and Coastal Wetlands in the San Diego Region, SWAMP QAPrP 2017 |
| QAPP Information Reference(s): |
Quality Assurance Program Plans, Quality Assurance Project Plans, and Standard Operating Procedures for the SWAMP program |
| |