Water Body Name: | Suisun Marsh Wetlands |
Water Body ID: | CAT2072400019980929145809 |
Water Body Type: | Wetland, Tidal |
DECISION ID |
68975 |
Region 2 |
Suisun Marsh Wetlands |
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Pollutant: | Mercury |
Final Listing Decision: | List on 303(d) list (being addressed by USEPA approved TMDL) |
Last Listing Cycle's Final Listing Decision: | List on 303(d) list (TMDL required list)(2016) |
Revision Status | Revised |
Sources: | Historic Land Management Activities |
TMDL Name: | Suisun Marsh Dissolved Oxygen and Mercury TMDL |
TMDL Project Code: | 553 |
Date TMDL Approved by USEPA: | 12/31/2018 |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | A TMDL for dissolved oxygen was approved by USEPA in December 2018. This TMDL for Suisun Marsh will also resolve the mercury impairments Suisun Marsh system. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded. The impairment is being addressed by a USEPA-approved TMDL. |
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LOE ID: | 3708 | ||||
Pollutant: | Metals | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Estuarine Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Not Specified | ||||
Data Used to Assess Water Quality: | Unspecified--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: | Unspecified | ||||
Objective/Criterion Reference: | Placeholder reference pre-2006 303(d) | ||||
Evaluation Guideline: | Unspecified | ||||
Guideline Reference: | Placeholder reference pre-2006 303(d) | ||||
Spatial Representation: | Unspecified | ||||
Temporal Representation: | Unspecified | ||||
Environmental Conditions: | Unspecified | ||||
QAPP Information: | Unspecified | ||||
QAPP Information Reference(s): | |||||
DECISION ID |
78582 |
Region 2 |
Suisun Marsh Wetlands |
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Pollutant: | Organic Enrichment/Low Dissolved Oxygen |
Final Listing Decision: | List on 303(d) list (being addressed by USEPA approved TMDL) |
Last Listing Cycle's Final Listing Decision: | List on 303(d) list (TMDL required list)(2016) |
Revision Status | Revised |
Sources: | Historic Land Management Activities |
TMDL Name: | Suisun Marsh Dissolved Oxygen and Mercury TMDL |
TMDL Project Code: | 553 |
Date TMDL Approved by USEPA: | 12/31/2018 |
Impairment from Pollutant or Pollution: | Pollutant |
Regional Board Conclusion: | The original listing was for metals prior to 2006. The metals impairment was for mercury impairment. The Suisun Marsh Mercury TMDL - approved by USEPA on 12/31/2018 is intended to resolve the impairment for mercury. Thus, this waterbody should remain on the 303(d) list, but the listing is now being addressed by a USEPA approved TMDL. |
Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded. |
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LOE ID: | 3710 | ||||
Pollutant: | Organic Enrichment/Low Dissolved Oxygen | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | Not Recorded | ||||
Beneficial Use: | Estuarine Habitat | ||||
Number of Samples: | 0 | ||||
Number of Exceedances: | 0 | ||||
Data and Information Type: | Not Specified | ||||
Data Used to Assess Water Quality: | Unspecified--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: | Unspecified | ||||
Temporal Representation: | Unspecified | ||||
Environmental Conditions: | Unspecified | ||||
QAPP Information: | Unspecified | ||||
QAPP Information Reference(s): | |||||