| |
DECISION ID |
6256 |
| |
| Pollutant: |
Pathogens |
| 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)(2006) |
| Revision Status |
Revised |
| Sources: |
Urban Runoff/Storm Sewers |
| TMDL Name: |
Napa River Pathogens |
| TMDL Project Code: |
60 |
| Date TMDL Approved by USEPA: |
02/29/2008 |
| Impairment from Pollutant or Pollution: |
Pollutant |
| |
| Weight of Evidence: |
A TMDL has been developed and approved by USEPA (2/29/2008) and an approved implementation plan is expected to result in attainment of the standard. This provides a sufficient justification in favor of placing this water segment-pollutant combination in the Water Quality Limited Segments Being Addressed portion of the section 303(d) list.
This pollutant is being considered for for listing under section 2.2 of the Listing Policy. Under this section of the Policy, a minimum of one line of evidence is needed to assess listing status.
The Basin Plan amendment incorporating a TMDL and water quality attainment strategy for Diazinon and pesticide-related toxicity in the Bay Area's urban creeks has been incorporated into the Water Quality Control Plan for the San Francisco Bay Basin (Basin Plan). The amendment was adopted by the Regional Water Board on November 16, 2005, and approved by the State Water Resources Control Board on November 15, 2006. It has been approved by the State Water Board, the Office of Administrative Law, and the federal Environmental Protection Agency.
Based on the readily available information, the weight of evidence indicates that there is sufficient justification in favor of placing this Water segment-pollutant combination in the Water Quality Limited Segments Being Addressed portion of the section 303(d) list. |
| |
| RWQCB Board Decision / Staff Recommendation: |
Water Board staff conclude that the water body should be placed in the Water Quality Limited Segments Being Addressed category of the section 303(d) list because a TMDL has been approved by USEPA and an approved implementation plan is in place. |
| |
| SWRCB Board Decision / Staff Recommendation: |
N/A |
| |
| USEPA Decision: |
USEPA moved this water body pollutant-combination on the section 303(d) list in the Being Addressed category using the data and information contained in the line of evidence. The TMDL and implementation plan has been approved for this water segment-pollutant combination by USEPA. |
| |
| |