Santa Maria River Watershed TMDL - Toxicity and Pesticides
Information
Problem Statement - Surface waters in the Santa Maria River watershed are polluted with pesticides that is toxic to aquatic life. This is in violation of the Basin Plan general narrative objectives for pesticides and toxicity. Surface waters identified as impaired are placed on the Clean Water Act section 303(d) list of impaired waters. This TMDL addresses toxicity and pesticide impairments on the 2008/2010 303(d) list along with additional toxicity and pesticide impairments.
Documentation
- August 31, 2015 - USEPA approves the Santa Maria Pesticide TMDL
- October 29, 2014 - OAL approves the Santa Maria Pesticide TMDL
- July 2, 2014 - State Water Resources Control Board approves the Santa Maria Pesticide TMDL
- January 30, 2014 - Central Coast Water Board adopts Santa Maria River Watershed TMDL - Toxicity and Pesticides
- Staff Report
- Attachment 1: Resolution and Basin Plan Amendment (R3-2014-0009)
- Attachment 2: Technical Project Report
- Appendix A1: Toxicity Data
- Appendix A2: Pesticide Data
- Appendix B: Load Duration Curves
- Appendix C1: DDT Sediment Data
- Appendix C2: DDT Sediment Analysis TOC
- Appendix C3: Pyrethroid Analysis
- Attachment 3: CEQA Substitute Document
- Attachment 4: Notice of Opportunity for Public Comment
- Attachment 5: Scientific Peer Review and Staff Responses
- Attachment 6: Public Comments and Staff Responses on Draft Project Report
- Attachment 7: Public Comments and Staff Responses on Revised CEQA Substitute Documentation
Subscribe to our Email Lists
- To be notified of updates and meetings regarding this TMDL please subscribe to the Santa Maria River Watershed TMDL email subscription list
Contacts
- Peter Meertens
805-549-3869
Peter.Meertens@waterboards.ca.gov
Status and Public Notices
- Status: Fully approved and effective.
- Report Card, Chlorpyrifos and Diazinon (2016)
- Public Notice: None at this time.
Approval status
- Central Coast Water Board
- adopted January 30, 2014. - State Water Resources Control Board
- approved July 2, 2014. - Office of Administrative Law (OAL)
- approved October 29, 2014, which is the effective date. - US Environmental Protection Agency
- approved August 31, 2015.
