| Water Body Name: | Russian River HU, Middle Russian River HA, Mark West HSA, tributaries to Mark West Creek (except Windsor Creek and its tributaries) |
| Water Body ID: | CAR1142302020130919051933 |
| Water Body Type: | River & Stream |
DECISION ID |
105218 |
Region 1 |
Russian River HU, Middle Russian River HA, Mark West HSA, tributaries to Mark West Creek (except Windsor Creek and its tributaries) |
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| Pollutant: | Indicator Bacteria |
| Final Listing Decision: | List on 303(d) list (TMDL required list) |
| Last Listing Cycle's Final Listing Decision: | New Decision |
| Revision Status | Revised |
| Sources: | See TMDL documentation |
| Expected TMDL Completion Date: | 2020 |
| 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 this section a single line of evidence is necessary to assess listing status.
Four lines of evidence are available in the administrative record to assess this pollutant. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing the Porter Creek-Mark West Creek HUC-12 on the CWA section 303(d) List for Indicator Bacteria. 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. The impairment analysis utilized a 10% exceedance frequency for year-round and winter data analysis and a 4% exceedance frequency was utilized during the summer months. Thus, a minimum of 26 samples or 5 exceedances were required to calculate year-round or winter impairment and a minimum of 22 samples or 3 exceedances to calculate summer impairment. 4. The statewide objective for E.coli bacteria in freshwater (salinity equal to or less than 1 ppth 95% or more of the time during the calendar year) was used to assess impairment/pollution, applying the exceedance thresholds from the 303 (d) Listing Policy. If E.coli bacteria data exceeded the objective more than the allowable frequency in the Listing Policy, the HUC-12 was identified as impaired. 5. Water bodies were also identified as impaired using a weight of evidence approach if enterococci data from freshwater exceeded the USEPA Criteria more than the allowable frequency in the Listing Policy AND a public health advisory was posted at any recreational beach in the HUC-12 during 2013-2016. 6. One of 7 STV for E.coli calculated from year-round data in the Porter Creek-Mark West Creek HUC-12 exceed the objective. Additionally, 5 of 7 geometric mean and 3 of 7 STV for Enterococcus calculated from year-round data in the Porter Creek-Mark West Creek HUC-12 exceed the USEPA criteria. There were no public health advisories posted in this HUC-12. These data are insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. 7. Five of 10 geometric mean for E.coli calculated during the summer period in the Porter Creek-Mark West Creek HUC-12 exceed the objective and this exceeds the allowable frequency from the Listing Policy. 8. 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 Porter Creek-Mark West Creek HUC-12 should be placed on the section 303(d) list for Indicator Bacteria because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem. |
| State Board Staff Review of Regional Board Conclusion and Recommendation: | |
| State Board Decision Recommendation: | |
|
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| LOE ID: | 133761 | ||||
| Pollutant: | Escherichia coli (E. coli) | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | None | ||||
| Beneficial Use: | Water Contact Recreation | ||||
| Number of Samples: | 10 | ||||
| Number of Exceedances: | 5 | ||||
| Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
| Data Used to Assess Water Quality: | Five of 10 geometric means calculated during the summer period (April 1 - October 31) in the Porter Creek-Mark West Creek HUC-12 exceed the objective for E. coli. | ||||
| Data Reference: | Water Quality Assessment Data for the 2018 solicitation utilized in the RWQCB1 Russian River TMDL . | ||||
| Staff Report for the Action Plan for the Russian River Watershed Pathogen Total Maximum Daily Load. Adopted with Addendum by the Regional Water Board August 14, 2019. | |||||
| Addendum to the Staff Report for the Action Plan for the Russian River Watershed Pathogen Total Maximum Daily Load. Adopted by the Regional Water Board August 14, 2019. | |||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | Water Quality Control Plan for Inland Surface Waters, Enclosed Bays, and Estuaries of California - Bacteria Provisions and a Water Quality Standards Variance Policy: The bacteria water quality objective for all waters where the salinity is equal to or less than 1 part per thousand (ppth) 95 percent or more of the time during the CALENDAR YEAR is: a six-week rolling GEOMETRIC MEAN of Escherichia coli (E. coli) not to exceed 100 colony forming units (cfu) per 100 milliliters (mL), calculated weekly, and a STATISTICAL THRESHOLD VALUE (STV) of 320 cfu/100 mL not to be exceeded by more than 10 percent of the samples collected in a CALENDAR MONTH, calculated in a static manner. | ||||
| Objective/Criterion Reference: | Amendment to the Water Quality Control Plan for Ocean Waters of California - Bacteria Provisions and a Water Quality Standards Variance Policy | ||||
| Evaluation Guideline: | |||||
| Guideline Reference: | |||||
| Spatial Representation: | Samples were collected in the Porter Creek-Mark West Creek HUC-12. | ||||
| Temporal Representation: | Samples were collected between 6/28/2001 and 6/19/2015. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | Data were collected in accordance with the Russian River Pathogen Indicator Bacteria TMDL QAPP (Version 1.0), Russian River Pathogen Indicator Bacteria TMDL - Supplemental Sampling Plan QAPP (Version 1.0), and/or the Russian River Pathogen Project QAPP. | ||||
| QAPP Information Reference(s): | Russian River Pathogen Indicator Bacteria TMDL Quality Assurance Project Plan. | ||||
| Quality Assurance Project Plan - Russian River Pathogen Project. | |||||
| Russian River Pathogen Indicator Bacteria TMDL - Supplemental Sampling Plan Quality Assurance Project Plan. | |||||
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| LOE ID: | 133777 | ||||
| Pollutant: | Enterococcus | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | None | ||||
| Beneficial Use: | Water Contact Recreation | ||||
| Number of Samples: | 7 | ||||
| Number of Exceedances: | 3 | ||||
| Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
| Data Used to Assess Water Quality: | 3 of 7 Statistical Threshold Values (STVs) in the Porter Creek-Mark West Creek HUC-12 exceed the criteria for enterococcus. | ||||
| Data Reference: | Water Quality Assessment Data for the 2018 solicitation utilized in the RWQCB1 Russian River TMDL . | ||||
| Staff Report for the Action Plan for the Russian River Watershed Pathogen Total Maximum Daily Load. Adopted with Addendum by the Regional Water Board August 14, 2019. | |||||
| Addendum to the Staff Report for the Action Plan for the Russian River Watershed Pathogen Total Maximum Daily Load. Adopted by the Regional Water Board August 14, 2019. | |||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | The national criteria for enterococci are set as a geometric mean (30 cfu/100 mL) or the statistical threshold value (110 cfu/100 mL) to ensure no more than 32 illnesses per 1000 recreators, as defined by U.S. EPA (2012). | ||||
| Objective/Criterion Reference: | 2012 USEPA Recreational Water Quality Criteria - Bacteria | ||||
| Evaluation Guideline: | |||||
| Guideline Reference: | |||||
| Spatial Representation: | Samples were collected in the Porter Creek-Mark West Creek HUC-12. | ||||
| Temporal Representation: | Samples were collected between 6/28/2001 and 6/19/2015. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | Data were collected in accordance with the Russian River Pathogen Indicator Bacteria TMDL QAPP (Version 1.0), Russian River Pathogen Indicator Bacteria TMDL - Supplemental Sampling Plan QAPP (Version 1.0), and/or the Russian River Pathogen Project QAPP. | ||||
| QAPP Information Reference(s): | Russian River Pathogen Indicator Bacteria TMDL Quality Assurance Project Plan. | ||||
| Quality Assurance Project Plan - Russian River Pathogen Project. | |||||
| Russian River Pathogen Indicator Bacteria TMDL - Supplemental Sampling Plan Quality Assurance Project Plan. | |||||
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| LOE ID: | 133802 | ||||
| Pollutant: | Enterococcus | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | None | ||||
| Beneficial Use: | Water Contact Recreation | ||||
| Number of Samples: | 7 | ||||
| Number of Exceedances: | 5 | ||||
| Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
| Data Used to Assess Water Quality: | 5 of 7 geometric means calculated in the Porter Creek-Mark West Creek HUC-12 exceed the criteria for enterococcus. | ||||
| Data Reference: | Water Quality Assessment Data for the 2018 solicitation utilized in the RWQCB1 Russian River TMDL . | ||||
| Staff Report for the Action Plan for the Russian River Watershed Pathogen Total Maximum Daily Load. Adopted with Addendum by the Regional Water Board August 14, 2019. | |||||
| Addendum to the Staff Report for the Action Plan for the Russian River Watershed Pathogen Total Maximum Daily Load. Adopted by the Regional Water Board August 14, 2019. | |||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | The national criteria for enterococci are set as a geometric mean (30 cfu/100 mL) or the statistical threshold value (110 cfu/100 mL) to ensure no more than 32 illnesses per 1000 recreators, as defined by U.S. EPA (2012). | ||||
| Objective/Criterion Reference: | 2012 USEPA Recreational Water Quality Criteria - Bacteria | ||||
| Evaluation Guideline: | |||||
| Guideline Reference: | |||||
| Spatial Representation: | Samples were collected in the Porter Creek-Mark West Creek HUC-12. | ||||
| Temporal Representation: | Samples were collected between 6/28/2001 and 6/19/2015. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | Data were collected in accordance with the Russian River Pathogen Indicator Bacteria TMDL QAPP (Version 1.0), Russian River Pathogen Indicator Bacteria TMDL - Supplemental Sampling Plan QAPP (Version 1.0), and/or the Russian River Pathogen Project QAPP. | ||||
| QAPP Information Reference(s): | Russian River Pathogen Indicator Bacteria TMDL Quality Assurance Project Plan. | ||||
| Quality Assurance Project Plan - Russian River Pathogen Project. | |||||
| Russian River Pathogen Indicator Bacteria TMDL - Supplemental Sampling Plan Quality Assurance Project Plan. | |||||
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| LOE ID: | 133731 | ||||
| Pollutant: | Escherichia coli (E. coli) | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | None | ||||
| Beneficial Use: | Water Contact Recreation | ||||
| Number of Samples: | 7 | ||||
| Number of Exceedances: | 1 | ||||
| Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
| Data Used to Assess Water Quality: | 1 of 7 Statistical Threshold Values (STVs) calculated from year-round data in the Porter Creek-Mark West Creek HUC-12 exceed the objective for E. coli. | ||||
| Data Reference: | Water Quality Assessment Data for the 2018 solicitation utilized in the RWQCB1 Russian River TMDL . | ||||
| Staff Report for the Action Plan for the Russian River Watershed Pathogen Total Maximum Daily Load. Adopted with Addendum by the Regional Water Board August 14, 2019. | |||||
| Addendum to the Staff Report for the Action Plan for the Russian River Watershed Pathogen Total Maximum Daily Load. Adopted by the Regional Water Board August 14, 2019. | |||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | Water Quality Control Plan for Inland Surface Waters, Enclosed Bays, and Estuaries of California - Bacteria Provisions and a Water Quality Standards Variance Policy: The bacteria water quality objective for all waters where the salinity is equal to or less than 1 part per thousand (ppth) 95 percent or more of the time during the CALENDAR YEAR is: a six-week rolling GEOMETRIC MEAN of Escherichia coli (E. coli) not to exceed 100 colony forming units (cfu) per 100 milliliters (mL), calculated weekly, and a STATISTICAL THRESHOLD VALUE (STV) of 320 cfu/100 mL not to be exceeded by more than 10 percent of the samples collected in a CALENDAR MONTH, calculated in a static manner. | ||||
| Objective/Criterion Reference: | Amendment to the Water Quality Control Plan for Ocean Waters of California - Bacteria Provisions and a Water Quality Standards Variance Policy | ||||
| Evaluation Guideline: | |||||
| Guideline Reference: | |||||
| Spatial Representation: | Samples were collected in the Porter Creek-Mark West Creek HUC-12. | ||||
| Temporal Representation: | Samples were collected between 6/28/2001 and 6/19/2015. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | Data were collected in accordance with the Russian River Pathogen Indicator Bacteria TMDL QAPP (Version 1.0), Russian River Pathogen Indicator Bacteria TMDL - Supplemental Sampling Plan QAPP (Version 1.0), and/or the Russian River Pathogen Project QAPP. | ||||
| QAPP Information Reference(s): | Russian River Pathogen Indicator Bacteria TMDL Quality Assurance Project Plan. | ||||
| Quality Assurance Project Plan - Russian River Pathogen Project. | |||||
| Russian River Pathogen Indicator Bacteria TMDL - Supplemental Sampling Plan Quality Assurance Project Plan. | |||||
DECISION ID |
78776 |
Region 1 |
Russian River HU, Middle Russian River HA, Mark West HSA, tributaries to Mark West Creek (except Windsor Creek and its tributaries) |
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| Pollutant: | Temperature, water |
| Final Listing Decision: | Do Not Delist from 303(d) list (TMDL required list) |
| Last Listing Cycle's Final Listing Decision: | Do Not Delist from 303(d) list (TMDL required list)(2016) |
| Revision Status | Original |
| Sources: | Flow Alteration/Regulation/Modification | Removal of Riparian Vegetation |
| Expected TMDL Completion Date: | 2023 |
| Impairment from Pollutant or Pollution: | Pollutant |
| Regional Board Conclusion: | Regional Board Conclusion:
This pollutant was considered for removal from the section 303(d) list in a previous assessment cycle. No new information was reviewed for this current assessment cycle. Therefore, the previous conclusion remains unchanged, and is as follows: The "Russian River HU, Middle Russian River HA, Mark West Creek HSA" water body has been split into four water bodies for the current Integrated Report cycle: (1) Russian River HU, Middle Russian River HA, Mark West HSA, mainstem Mark West Creek downstream of the confluence with the Laguna de Santa Rosa, (2) Russian River HU, Middle Russian River HA, Mark West HSA, mainstem Mark West Creek upstream of the confluence with the Laguna de Santa Rosa, (3) Russian River HU, Middle Russian River HA, Mark West HSA, tributaries to Mark West Creek (except Windsor Creek and its tributaries), and (4) Russian River HU, Middle Russian River HA, Mark West HSA, Windsor Creek and its tributaries. LOE 47197 is a copy of placeholder LOE 4770 from the 2006 Listing cycle. LOE 47426 is new for the current Integrated Report cycle. This pollutant is being considered for removal from the section 303(d) list under section 4.2 of the Listing Policy. Under this section a single line of evidence is necessary to assess listing status. Two lines of evidence are available in the administrative record to assess this pollutant. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the section 303(d) list (i.e., sufficient justification to not delist). 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) 303(d) listing determinations made prior to 2006 were not held in an assessment database. LOE 47197 is a placeholder for the 303(d) listing data and information from a previous assessment cycle that was initially utilized to make this listing determination. (4) Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met. |
| Regional Board Decision Recommendation: | This is a decision previously approved by the State Water Resources Control Board and the USEPA. No new data were assessed by the Regional Board for the current cycle. The decision has not changed. |
| State Board Staff Review of Regional Board Conclusion and Recommendation: | |
| State Board Decision Recommendation: | |
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| LOE ID: | 47426 | ||||
| Pollutant: | Temperature, water | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | None | ||||
| Beneficial Use: | Cold Freshwater Habitat | ||||
| Number of Samples: | 8 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
| Data Used to Assess Water Quality: | None of the 8 samples collected in Humbug Creek (a tributary to Mark West Creek) exceeded the evaluation guideline. Temperatures during February - April (when spawning, incubation and emergence occur) ranged from 8 degrees C to 13 degrees C. Temperatures during May - July (when migration and rearing occur) ranged from 12.8 degrees C to 16 degrees C. | ||||
| Data Reference: | Data for Water Quality in Mark West Creek, 2004-2009. | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | Water Quality Control Plan, North Coast Region (NCRWQCB 2011): Natural receiving water temperature of intrastate waters shall not be altered unless it can be demonstrated to the satisfaction of the Regional Water Board that such alteration in temperature does not adversely affect beneficial uses. At no time or place shall the temperature of any COLD water be increased more than 5 degrees Fahrenheit (F) above natural receiving water temperature. | ||||
| Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) for the North Coast Region | ||||
| Evaluation Guideline: | According to Carter (2008) the lethal temperature for spawning, incubation, and emergence life stages are 20 degrees C. The lethal temperatures for adult migration and holding, and juvenile migration and rearing is 24 degrees C. | ||||
| Guideline Reference: | Effects of Temperature, Dissolved Oxygen/Total Dissolved Gas, Ammonia, and pH on Salmonids. Implications for California's North Coast TMDLs. California Regional Water Quality Control Board, North Coast Region | ||||
| Spatial Representation: | Grab samples were collected from the HBG020 in Humbug Creek. | ||||
| Temporal Representation: | Grab samples were collected monthly during February - May & July 2009, and three times (weekly) during June 2009. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | There was no quality assurance information with this data. | ||||
| QAPP Information Reference(s): | Quality Assurance Project Plan for Mark West Creek, Sonoma County. | ||||
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| LOE ID: | 47197 | ||||
| Pollutant: | Temperature, water | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | None | ||||
| Beneficial Use: | Cold Freshwater Habitat | ||||
| Number of Samples: | 0 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Not Specified | ||||
| Data Used to Assess Water Quality: | This LOE is a placeholder to support a 303(d) listing decision made prior to 2006. | ||||
| Data Reference: | Placeholder reference pre-2006 303(d) | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | |||||
| Objective/Criterion Reference: | |||||
| Evaluation Guideline: | |||||
| Guideline Reference: | |||||
| Spatial Representation: | |||||
| Temporal Representation: | |||||
| Environmental Conditions: | |||||
| QAPP Information: | unspecified | ||||
| QAPP Information Reference(s): | |||||
DECISION ID |
79536 |
Region 1 |
Russian River HU, Middle Russian River HA, Mark West HSA, tributaries to Mark West Creek (except Windsor Creek and its tributaries) |
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| Pollutant: | Sedimentation/Siltation |
| Final Listing Decision: | List on 303(d) list (TMDL required list) |
| Last Listing Cycle's Final Listing Decision: | List on 303(d) list (TMDL required list)(2016) |
| Revision Status | Original |
| Sources: | Flow Alteration/Regulation/Modification | Removal of Riparian Vegetation | Streambank Modification/Destabilization |
| Expected TMDL Completion Date: | 2023 |
| Impairment from Pollutant or Pollution: | Pollutant |
| Regional Board Conclusion: | Regional Board Conclusion:
This pollutant was considered for placement on the section 303(d) list in a previous assessment cycle. No new information was reviewed for this current assessment cycle. Therefore, the previous conclusion remains unchanged, and is as follows: Data included in this decision were originally assessed under the "Russian River HU, Middle Russian River HA, Mark West Creek HSA" water body has been split into four water bodies for the current Integrated Report cycle: (1) Russian River HU, Middle Russian River HA, Mark West HSA, mainstem Mark West Creek downstream of the confluence with the Laguna de Santa Rosa, (2) Russian River HU, Middle Russian River HA, Mark West HSA, mainstem Mark West Creek upstream of the confluence with the Laguna de Santa Rosa, (3) Russian River HU, Middle Russian River HA, Mark West HSA, tributaries to Mark West Creek (except Windsor Creek and its tributaries), and (4) Russian River HU, Middle Russian River HA, Mark West HSA, Windsor Creek and its tributaries. LOE 47193 is a copy of placeholder LOE 4769 from the 2006 Listing cycle. There are no new data for this water segment-pollutant combination for the current Integrated Report cycle. Regional Water Board conclusion: This pollutant was considered for placement on the section 303(d) List in a previous Integrated Report cycle. No new information was reviewed for this current Integrated Report cycle. Therefore, the previous conclusion remains unchanged, and is as follows: 303(d) listing decisions made prior to 2006 were not held in an assessment database. The Regional Boards will update this decision when new data and information become available and are assessed. |
| Regional Board Decision Recommendation: | This is a decision previously approved by the State Water Resources Control Board and the USEPA. No new data were assessed by the Regional Board for the current cycle. The decision has not changed. |
| State Board Staff Review of Regional Board Conclusion and Recommendation: | |
| State Board Decision Recommendation: | |
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| LOE ID: | 47193 | ||||
| Pollutant: | Sedimentation/Siltation | ||||
| LOE Subgroup: | Pollutant-Sediment | ||||
| Matrix: | Water | ||||
| Fraction: | None | ||||
| Beneficial Use: | Cold Freshwater Habitat | ||||
| Number of Samples: | 0 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Not Specified | ||||
| Data Used to Assess Water Quality: | This LOE is a placeholder to support a 303(d) listing decision made prior to 2006. | ||||
| Data Reference: | Placeholder reference pre-2006 303(d) | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | |||||
| Objective/Criterion Reference: | |||||
| Evaluation Guideline: | |||||
| Guideline Reference: | |||||
| Spatial Representation: | |||||
| Temporal Representation: | |||||
| Environmental Conditions: | |||||
| QAPP Information: | unspecified | ||||
| QAPP Information Reference(s): | |||||