Water Body Name: | Buena Creek |
Water Body ID: | CAR9043200020050630113820 |
Water Body Type: | River & Stream |
Lines of Evidence (LOEs) for Decision ID 16363 |
LOE ID: | 6540 |
Pollutant: | Phosphorus |
LOE Subgroup: | Pollution |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Number of Samples: | 4 |
Number of Exceedances: | 4 |
Data and Information Type: | Fixed station physical/chemical monitoring (conventional pollutants only) |
Data Used to Assess Water Quality: | Four of four samples collected at Buena Creek show excessive phosphorous concentrations according to results in California's Surface Water Ambient Monitoring Program, 2007. Samples were collected in March, April, June and September 2002. |
Data Reference: | Water Quality Control Plan for the San Diego Basin (9). |
Water Quality Objective/Criterion: | From the Basin Plan: For inland surface waters-streams and other flowing waters, with all beneficial uses, the water quality objective for total phosphorus is 0.1 mg/L (RWQCB, 2007). |
Objective/Criterion Reference: | Water Quality Control Plan for the San Diego Basin (9). |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Water samples were collected at Buena Creek station 904CBBUR1; (Latitude 33.1725, Longitude -117.2082). |
Temporal Representation: | Samples were collected in March, April, June and September 2002. |
Environmental Conditions: | |
QAPP Information: | Quality control for the chemical analysis portion of this study was conducted in accordance with the California's Surface Water Ambient Monitoring Program. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 16364 |
LOE ID: | 6542 |
Pollutant: | Total Nitrogen as N |
LOE Subgroup: | Pollution |
Matrix: | Water |
Fraction: | Not Recorded |
Beneficial Use: | Warm Freshwater Habitat |
Number of Samples: | 4 |
Number of Exceedances: | 4 |
Data and Information Type: | Fixed station physical/chemical monitoring (conventional pollutants only) |
Data Used to Assess Water Quality: | All four samples collected at Buena Creek show excessive nitrogen concentrations according to results in California's Surface Water Ambient Monitoring Program Report, 2007.
Water samples were collected in March, April, June and September 2002. |
Data Reference: | Water Quality Control Plan for the San Diego Basin (9). |
Water Quality Objective/Criterion: | Water bodies shall not contain biostimulatory substances in concentrations that promote aquatic growth to the extent that such growths cause nuisance or adversely affect beneficial uses (RWQCB, 2007).
A desired goal in order to prevent plant nuisance in streams and other flowing waters appears to be 0.1 mg/L total phosphorus, P. These values are not to be exceeded more than 10% of the time unless studies of the specific water body in question clearly show that water quality objective changes are permissible and changes are approved by the Regional Board. Analogous threshold values have not been set for nitrogen compounds; however, natural ratios of nitrogen to phosphorus are to be determined by surveillance and monitoring and upheld. If data are lacking, a ratio of N:P = 10:1, on a weight to weight basis shall be used (RWQCB, 2007). |
Objective/Criterion Reference: | Water Quality Control Plan for the San Diego Basin (9). |
Evaluation Guideline: | |
Guideline Reference: | Water Quality Control Plan for the San Diego Basin (9). |
Spatial Representation: | Water samples were collected at Buena Creek station 904CBBUR1; (Latitude 33.1725, Longitude -117.2082). |
Temporal Representation: | Water samples were collected in March, April, June and September 2002. |
Environmental Conditions: | |
QAPP Information: | Quality control for the chemical analysis portion of this study was conducted in accordance with the California's Surface Water Ambient Monitoring Program. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 5361 |
LOE ID: | 3186 |
Pollutant: | DDT (Dichlorodiphenyltrichloroethane) |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Total |
Beneficial Use: | Municipal & Domestic Supply |
Number of Samples: | 4 |
Number of Exceedances: | 4 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Four of 4 samples exceeded the CTR criterion (SWAMP, 2004). |
Data Reference: | Placeholder reference 2006 303(d) |
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in the water column, sediments or biota at concentration(s) that adversely affect beneficial uses.
California Toxic Rule: Human Health carcinogenic risk for consumption of water & organisms, 0.00059 μg/L. |
Objective/Criterion Reference: | Placeholder reference 2006 303(d) |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | One sample site in Buena Creek at 33.17225 - 117.20887. |
Temporal Representation: | Samples were collected from March through September of 2002. |
Environmental Conditions: | Buena Creek 904.32 |
QAPP Information: | SWAMP Quality Assurance Plan. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 5360 |
LOE ID: | 3185 |
Pollutant: | Nitrate and Nitrite |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Not Recorded |
Beneficial Use: | Municipal & Domestic Supply |
Number of Samples: | 4 |
Number of Exceedances: | 4 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Four of 4 samples exceeded the MCLs (SWAMP, 2004). |
Data Reference: | Placeholder reference 2006 303(d) |
Water Quality Objective/Criterion: | Waters designated for use as domestic or municipal supply shall not contain concentrations of nitrate and nitrite as nitrogen in excess of Maximum Contaminant Levels (MCL) set forth in Title 22 of the CCR, Table 64431-A of section 64431. |
Objective/Criterion Reference: | Placeholder reference 2006 303(d) |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | One sample site at Buena Creek: 33.17225 - 117.20887. |
Temporal Representation: | Samples were collected from March through September of 2002. |
Environmental Conditions: | Buena Creek 904.32. |
QAPP Information: | SWAMP Quality Assurance Plan |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 5408 |
LOE ID: | 3188 |
Pollutant: | Phosphate |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Total |
Beneficial Use: | Municipal & Domestic Supply |
Number of Samples: | 4 |
Number of Exceedances: | 4 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Four water samples, four samples exceeding the basin plan goal (SWAMP, 2004). |
Data Reference: | Placeholder reference 2006 303(d) |
Water Quality Objective/Criterion: | Waters shall not contain biostimulatory substances in concentrations that promote aquatic growth to the extent that such growth causes nuisances or adversely affects beneficial uses. Water Quality Control Plan phosphate goal of 0.1 mg/L in stream and flowing waters. |
Objective/Criterion Reference: | Placeholder reference 2006 303(d) |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | One Station at Buena Creek: 33.17225 -117.20887. |
Temporal Representation: | Samples were collected from March through September of 2002. |
Environmental Conditions: | Buena Creek 904.32. |
QAPP Information: | SWAMP Quality Assurance Plan. |
QAPP Information Reference(s): |