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LOE ID: |
26207 |
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Pollutant: |
Arsenic | Cadmium (sediment) | Chromium (sediment) | Copper (sediment) | Lead (sediment) | Mercury (sediment) |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
None |
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Beneficial Use: |
Warm Freshwater Habitat |
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Number of Samples: |
1 |
Number of Exceedances: |
0 |
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Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Concentrations of arsenic, cadmium, chromium, copper, lead, mercury and zinc in one sediment sample collected in spring 2005 did not exceed the sediment quality guidelines. |
Data Reference: |
Data collected by the Surface Water Ambient Monitoring Program, San Francisco Bay Regional Water Quality Control Board. Years 4 and 5 Assessment |
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Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances that are lethal to or that produce other detrimental responses in aquatic organisms. |
Objective/Criterion Reference: |
San Francisco Bay Basin (Region 2) Water Quality Control Plan (Basin Plan) |
|
Evaluation Guideline: |
Sediment Quality Guidelines (MacDonald et al., 2000): PEC (threshold effect concentration) arsenic - 33 mg/kg dw; cadmium - 4.98 mg/kg dw; chromium - 111 mg/kg dw; copper - 149 mg/kg dw; lead - 128 mg/kg dw; mercury - 1.06 mg/kg dw; zinc - 459 mg/kg dw. |
Guideline Reference: |
Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 |
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Spatial Representation: |
Data were collected at a sampling location at the lower part of Arroyo Viejo Creek upstream from the confluence with Lion Creek in south-east Oakland. |
Temporal Representation: |
Sample was collected in spring 2005. |
Environmental Conditions: |
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QAPP Information: |
All samples were collected and analyzed using procedures comparable with the SWAMP Quality Assurance Management Plan (SWRCB, 2002). |
QAPP Information Reference(s): |
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LOE ID: |
21293 |
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Pollutant: |
Nickel (sediment) |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
None |
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Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Nickel concentration in sediment sample collected in spring 2005 was 95.5 mg/kg and exceeded the sediment quality guideline. |
Data Reference: |
Data collected by the Surface Water Ambient Monitoring Program, San Francisco Bay Regional Water Quality Control Board. Years 4 and 5 Assessment |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances that are lethal to or that produce other detrimental responses in aquatic organisms. |
Objective/Criterion Reference: |
San Francisco Bay Basin (Region 2) Water Quality Control Plan (Basin Plan) |
|
Evaluation Guideline: |
Sediment Quality Guidelines (MacDonald et al., 2000): PEC (probable effect concentration) for nickel - 48.6 mg/kg |
Guideline Reference: |
Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Environmental Contamination and Toxicology. 39: 20-31 |
|
Spatial Representation: |
Data were collected at a sampling location at the lower part of Arroyo Viejo Creek upstream from the confluence with Lion Creek in south-east Oakland. |
Temporal Representation: |
Sample was collected in spring April 2005. |
Environmental Conditions: |
|
QAPP Information: |
All samples were collected and analyzed using procedures comparable with the SWAMP Quality Assurance Management Plan (SWRCB, 2002). |
QAPP Information Reference(s): |
Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version)
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LOE ID: |
21287 |
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Pollutant: |
Sediment Toxicity |
LOE Subgroup: |
Pollutant-Sediment |
Matrix: |
Sediment |
Fraction: |
None |
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Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
TOXICITY TESTING |
Data Used to Assess Water Quality: |
Data used to evaluate sediment toxicity comprise one sediment sample collected by the SWAMP in spring 2005. This sample displayed statistically significant toxicity during the Hyalella azteca test. Hyalella azteca growth was only 64% of the control. |
Data Reference: |
Data collected by the Surface Water Ambient Monitoring Program, San Francisco Bay Regional Water Quality Control Board. Years 4 and 5 Assessment |
|
Water Quality Objective/Criterion: |
All waters shall be maintained free of toxic substances that are lethal to or that produce other detrimental responses in aquatic organisms.
There shall be no chronic toxicity in ambient waters. Chronic toxicity is a detrimental biological effect on growth rate, reproduction, fertilization success, larval development, population abundance, community composition, or any other relevant measure of the health of an organism, population, or community. |
Objective/Criterion Reference: |
San Francisco Bay Basin (Region 2) Water Quality Control Plan (Basin Plan) |
|
Evaluation Guideline: |
Sediment toxicity data were evaluated according to the SWAMP methodology. Sample toxicity was determined by comparing mean organism response in samples and in negative controls. Statistical evaluation and a default threshold of 80% of the control value were used to establish whether the sediment exhibited significant toxicity adversely impacting aquatic organisms. |
Guideline Reference: |
Revised approach to toxicity test acceptability criteria using a statistical performance assessment. Environmental Toxicology and Chemistry, vol. 16, No. 6, pp 13221329 |
|
Spatial Representation: |
Data were collected at a sampling location at the lower part of Arroyo Viejo Creek upstream from the confluence with Lion Creek in south-east Oakland. |
Temporal Representation: |
Sample was collected in April 2005. |
Environmental Conditions: |
|
QAPP Information: |
All samples were collected and analyzed using procedures comparable with the SWAMP Quality Assurance Management Plan (SWRCB, 2002). |
QAPP Information Reference(s): |
Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version)
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