| Water Body Name: | Strawberry Creek |
| Water Body ID: | CAR8022100020011108111631 |
| Water Body Type: | River & Stream |
DECISION ID |
98129 |
Region 8 |
Strawberry Creek |
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| Pollutant: | Benthic Community Effects |
| Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
| Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2016) |
| Revision Status | Original |
| Impairment from Pollutant or Pollution: | Pollutant |
| Regional Board Conclusion: | Benthic Community Effects is being considered for placement on the CWA section 303(d) List under sections 3.9 and 3.1 of the Listing Policy. Under section 3.9, an additional line of evidence associating Benthic Community Effects with a water or sediment concentration of pollutant(s) is necessary to assess listing status.
Three lines of evidence are available in the administrative record to assess this indicator. Zero of the 2 benthic macroinvertebrate samples exceed (fall below) the California Streams Condition Index (CSCI) threshold for likely altered biological condition. The water segment does have associated pollutant(s) samples that exceed water quality objectives. Based on the readily available data and information, the weight of evidence provides sufficient justification for not placing Benthic Community Effects in this water segment on the CWA section 303(d) List. 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. Pursuant to section 3.9 of the Listing Policy, the water segment does not exhibit significant degradation in biological populations and/or communities as compared to reference site(s) using the California Stream Condition Index. 4. Pursuant to section 3.9 of the Listing Policy, the water segment does have associated pollutant(s) samples that exceed water quality objectives. 5. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not being met. The California Stream Condition Index is a new scoring tool for bioassessment data that is applicable statewide, accounts for a much wider range of natural variability, and provides equivalent scoring thresholds in all regions of the state. The CSCI has been used in some assessments this reporting cycle and will be used in the future for water quality assessment purposes statewide over the regional indices of biologic integrity (IBIs). If CSCI scores have not been calculated for data and only IBI scores are available, IBI scores will still be used to interpret the data. |
| 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: | The California Stream Condition Index is a new scoring tool for bioassessment data that is applicable statewide, accounts for a much wider range of natural variability, and provides equivalent scoring thresholds in all regions of the state. The CSCI has been used in some assessments this reporting cycle and will be used in the future for water quality assessment purposes statewide over the regional indices of biologic integrity (IBIs). If CSCI scores have not been calculated for data and only IBI scores are available, IBI scores will still be used to interpret the data. |
| State Board Decision Recommendation: | After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
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| LOE ID: | 82534 | ||||
| Pollutant: | Chloride | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | Total Dissolved | ||||
| Beneficial Use: | Cold Freshwater Habitat | ||||
| Number of Samples: | 3 | ||||
| Number of Exceedances: | 1 | ||||
| Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
| Data Used to Assess Water Quality: | One of 3 samples exceeded the site-specific objective. | ||||
| Data Reference: | Data for Various Pollutants in the Streams of Region 8, 2009. | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | The site-specific objective for Chloride at Strawberry Creek according to table 4-1 of the Santa Ana Basin plan is 15 mg/L. | ||||
| Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
| Evaluation Guideline: | |||||
| Guideline Reference: | |||||
| Spatial Representation: | Data was collected from the SMCR8_513, SMCR8_605, SMCR8_688 stations. | ||||
| Temporal Representation: | Data was collected on the following dates: 6/22/2009 and 7/1/2009 | ||||
| Environmental Conditions: | |||||
| QAPP Information: | The data was analyzed by CSULB and follows California's Surface Water Ambient Monitoring Program protocols. No QAPP provided. | ||||
| QAPP Information Reference(s): | |||||
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| LOE ID: | 82533 | ||||
| Pollutant: | Benthic-Macroinvertebrate Bioassessments | ||||
| LOE Subgroup: | Population/Community Degradation | ||||
| Matrix: | Water | ||||
| Fraction: | None | ||||
| Beneficial Use: | Cold Freshwater Habitat | ||||
| Number of Samples: | 2 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Benthic macroinvertebrate surveys | ||||
| Data Used to Assess Water Quality: | Two samples were collected from two different sites during 2006. The CSCI scores for these sites are 1.0 and 0.91. Both sites are above the 0.79 threshold and therefore meet the water quality objective for the aquatic life beneficial use. | ||||
| Data Reference: | Data for Various Pollutants in the Streams of Region 8, 2009. | ||||
| Region 8 CSCI scores and data. | |||||
| SWAMP Data: | SWAMP | ||||
| Water Quality Objective/Criterion: | Inland surface water communities and populations, including vertebrate, invertebrate, and plant species, shall not be degraded as a result of the discharge of waste. Degradation is damage to an aquatic community or population with the result that balanced community no longer exists. The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses. | ||||
| Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
| Evaluation Guideline: | The California Stream Condition Index (CSCI) is a biological scoring tool that helps aquatic resource managers translate complex data about benthic macroinvertebrates found living in a stream into an overall measure of stream health. The CSCI score is calculated by comparing the expected condition with actual (observed) results (Rehn, A.C. et al., 2015). CSCI scores range from 0 (highly degraded) to greater than 1 (equivalent to reference). CSCI scoring of biological condition are as follows (per the scientific paper supporting the development of the CSCI scoring tool): greater than or equal to 0.92 = likely intact condition, 0.91 to 0.80 = possibly altered condition, 0.79 to 0.63 = likely altered condition, less than or equal to 0.62 = very likely altered condition. Sites with scores below 0.79 are considered to have exceeded the water quality objective for the aquatic life beneficial use. | ||||
| Guideline Reference: | Bioassessment in complex environments: designing an index for consistent meaning in different settings | ||||
| Spatial Representation: | The samples were collected from stations 802SWC020 (SMCR8_020) and 802SWC206
(SMCR8_206). |
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| Temporal Representation: | The samples were collected in June 2006. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | Samples were collected for the RWB8's Probabilistic Stream Survey CY2006 following SWAMP protocols. Data is from Region 8 CSULB database and formatted in SWAMP format. Taxonomic data is good. | ||||
| QAPP Information Reference(s): | |||||
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| LOE ID: | 82545 | ||||
| Pollutant: | Toxicity | ||||
| LOE Subgroup: | Toxicity | ||||
| Matrix: | Water | ||||
| Fraction: | None | ||||
| Beneficial Use: | Cold Freshwater Habitat | ||||
| Number of Samples: | 3 | ||||
| Number of Exceedances: | 1 | ||||
| Data and Information Type: | TOXICITY TESTING | ||||
| Data Used to Assess Water Quality: | Three samples were collected to evaluate water toxicity. One of the three samples exhibited significant toxicity. The toxicity tests included survival and reproduction of Ceriodaphnia dubia. Statistically significant toxicity to Ceriodaphnia dubia reproduction was observed in one sample (6/22/2009) | ||||
| Data Reference: | Data for Various Pollutants in the Streams of Region 8, 2009. | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | Toxic substances shall not be discharged at levels that will bioaccumulate in aquatic resources to levels which are harmful to human health. | ||||
| Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
| Evaluation Guideline: | Toxicity is defined as a statistically significant effect in the sample exposure compared to the control using EPA-recommended hypothesis testing. The t-test is used to determine if there is a statistically significant decrease in organism response in the sample as compared to the control. | ||||
| Guideline Reference: | Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 | ||||
| Spatial Representation: | The samples were collected in Strawberry Creek at these sites SMCR8_513, SMCR8_605 and SMCR8_688. | ||||
| Temporal Representation: | The samples were collected in June and July 2009. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | The data was analyzed by CSULB and follows California's Surface Water Ambient Monitoring Program protocols. | ||||
| QAPP Information Reference(s): | |||||
DECISION ID |
97181 |
Region 8 |
Strawberry Creek |
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| Pollutant: | Chloride |
| Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
| Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2016) |
| Revision Status | Original |
| Impairment from Pollutant or Pollution: | Pollutant |
| Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence are necessary to assess listing status.
One (1) line of evidence is available in the administrative record to assess this pollutant. One (1) of the three samples exceed the 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 CWA section 303(d) List. 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 (1) of three samples exceeded the OBJECTIVE and this sample size is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. A minimum of 16 samples is needed to determine if a beneficial use is fully supported using table 3.1. 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. 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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
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|||||
| LOE ID: | 82534 | ||||
| Pollutant: | Chloride | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | Total Dissolved | ||||
| Beneficial Use: | Cold Freshwater Habitat | ||||
| Number of Samples: | 3 | ||||
| Number of Exceedances: | 1 | ||||
| Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
| Data Used to Assess Water Quality: | One of 3 samples exceeded the site-specific objective. | ||||
| Data Reference: | Data for Various Pollutants in the Streams of Region 8, 2009. | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | The site-specific objective for Chloride at Strawberry Creek according to table 4-1 of the Santa Ana Basin plan is 15 mg/L. | ||||
| Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
| Evaluation Guideline: | |||||
| Guideline Reference: | |||||
| Spatial Representation: | Data was collected from the SMCR8_513, SMCR8_605, SMCR8_688 stations. | ||||
| Temporal Representation: | Data was collected on the following dates: 6/22/2009 and 7/1/2009 | ||||
| Environmental Conditions: | |||||
| QAPP Information: | The data was analyzed by CSULB and follows California's Surface Water Ambient Monitoring Program protocols. No QAPP provided. | ||||
| QAPP Information Reference(s): | |||||
DECISION ID |
95329 |
Region 8 |
Strawberry Creek |
||
| Pollutant: | Sulfates |
| Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
| Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2016) |
| Revision Status | Original |
| Impairment from Pollutant or Pollution: | Pollutant |
| Regional Board Conclusion: | This pollutant is being considered for placement on the CWA 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. Zero (0) of the three (3) 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 CWA section 303(d) List. 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. Zero (0) of the three (3) samples exceed the water quality objective and this sample size is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. A minimum of 16 samples is needed to determine if a beneficial use is fully supported using table 3.1. 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. 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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
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|||||
| LOE ID: | 82544 | ||||
| Pollutant: | Sulfates | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | Total Dissolved | ||||
| Beneficial Use: | Cold Freshwater Habitat | ||||
| Number of Samples: | 3 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
| Data Used to Assess Water Quality: | Numeric data generated from 3 samples collected had 0 exceedences of the site-specific objective. | ||||
| Data Reference: | Data for Various Pollutants in the Streams of Region 8, 2009. | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | The objectives listed in Table 4-1 shall not be exceeded as a result of controllable water quality factors. The site-specific objective for Sulfates at Strawberry Creek according to table 4-1 of the Santa Ana Basin plan is 20 mg/L. | ||||
| Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
| Evaluation Guideline: | |||||
| Guideline Reference: | |||||
| Spatial Representation: | Data was collected from the SMCR8_513, SMCR8_605, and SMCR8_688 stations. | ||||
| Temporal Representation: | Data was collected on the following dates: 6/22/2009 7/1/2009 | ||||
| Environmental Conditions: | |||||
| QAPP Information: | The data was analyzed by CSULB and follows California's Surface Water Ambient Monitoring Program protocols. No QAPP provided. | ||||
| QAPP Information Reference(s): | |||||
DECISION ID |
96389 |
Region 8 |
Strawberry Creek |
||
| Pollutant: | Toxicity |
| Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
| Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2016) |
| Revision Status | Original |
| Impairment from Pollutant or Pollution: | Pollutant |
| Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.6 of the Listing Policy. Under section 3.6 at least one line of evidence is necessary to assess listing status for toxicity, and waters may be placed on the CWA section 303(d) List for toxicity alone.
One line of evidence is available in the administrative record to assess this pollutant. One of the 3 samples exhibited water toxicity. 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 CWA section 303(d) List. 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 the 3 samples exhibited water toxicity and this sample size is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. A minimum of 16 samples is needed to determine if a beneficial use is fully supported using table 3.1. 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. 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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
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| LOE ID: | 82545 | ||||
| Pollutant: | Toxicity | ||||
| LOE Subgroup: | Toxicity | ||||
| Matrix: | Water | ||||
| Fraction: | None | ||||
| Beneficial Use: | Cold Freshwater Habitat | ||||
| Number of Samples: | 3 | ||||
| Number of Exceedances: | 1 | ||||
| Data and Information Type: | TOXICITY TESTING | ||||
| Data Used to Assess Water Quality: | Three samples were collected to evaluate water toxicity. One of the three samples exhibited significant toxicity. The toxicity tests included survival and reproduction of Ceriodaphnia dubia. Statistically significant toxicity to Ceriodaphnia dubia reproduction was observed in one sample (6/22/2009) | ||||
| Data Reference: | Data for Various Pollutants in the Streams of Region 8, 2009. | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | Toxic substances shall not be discharged at levels that will bioaccumulate in aquatic resources to levels which are harmful to human health. | ||||
| Objective/Criterion Reference: | Water Quality Control Plan, Santa Ana River Basin | ||||
| Evaluation Guideline: | Toxicity is defined as a statistically significant effect in the sample exposure compared to the control using EPA-recommended hypothesis testing. The t-test is used to determine if there is a statistically significant decrease in organism response in the sample as compared to the control. | ||||
| Guideline Reference: | Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms. Fourth Edition. Office of Water, U.S. Environmental Protection Agency. Washington, D.C. EPA-821-R-02-013 | ||||
| Spatial Representation: | The samples were collected in Strawberry Creek at these sites SMCR8_513, SMCR8_605 and SMCR8_688. | ||||
| Temporal Representation: | The samples were collected in June and July 2009. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | The data was analyzed by CSULB and follows California's Surface Water Ambient Monitoring Program protocols. | ||||
| QAPP Information Reference(s): | |||||