Salinas River Watershed Organophosphate Pesticides and Toxicity TMDL
Information
On June 21, 2024, the Central Coast Regional Water Quality Control Board adopted total maximum daily loads (TMDLs) for organophosphate pesticides and toxicity in the lower Salinas River watershed, located in Monterey County. Reducing organophosphate pesticide loading into waterbodies within the lower Salinas River watershed will reduce the frequency and severity of aquatic toxicity. The TMDL implementation strategy describes how the Water Board’s regulatory mechanisms will address organophosphate pesticide loads from various sources in order to attain water quality standards.
Documentation
February 25, 2026 – Office of Administrative Law Approved TMDL
State Board Hearing and Public Comment
- October 7, 2025 – State Water Board Approved TMDL
- August 25, 2025 – Revised State Water Board Notice of Adoption Meeting (English | Español).
- August 22, 2025 – State Water Board Notice of Adoption Hearing (English | Español).
- November 25, 2024 – State Water Board Notice of Availability for Comment (English | Español).
Central Coast Water Board Adoption Meeting (2024)
- June 21, 2024 – Central Coast Water Board Adopted
- June 18, 2024 – Revised Basin Plan Amendment and Supplemental Sheet for June 20-21, 2024 Board Hearing
- May 16, 2024 – TMDL Documents for June 20-21, 2024, Board Meeting
- Staff Report
- Proposed Resolution R3-2024-0002 and Proposed Basin Plan Amendment (Attachment A to the Resolution)
- TMDL Project Technical Report
- CEQA Checklist and Analysis Report
- External Scientific Peer Review and Staff Responses
- Public Comments Received and Staff Responses
- Change Sheet
- Notice of Public Hearing (English | Español)
- May 3, 2024 – Revised Notice of Public Hearing (English | Español)
- 4 de marzo de 2024 - Aviso Audiencia Pública
- March 1, 2024 – Notice of Public Hearing
TMDL Documents Available for Public Review and Comment
- January 22, 2024 – TMDL Documents for Public Review and Comment (January 22, 2024 – February 23, 2024)
- Notice of Opportunity to Comment (English) | Español)
- Proposed Basin Plan Amendment (revised)
- TMDL Project Technical Report (revised)
- Change Sheet (changes to Proposed Basin Plan Amendment and TMDL Project Technical Report)
- Public Comment and Responses (from Public Comment Period November 2, 2023 – December 22, 2023)
- November 2, 2023 – TMDL Documents for Public Review and Comment (November 2, 2023 – December 22, 2023)
- Notice of Opportunity to Comment (English | Español)
- Proposed Resolution
- Proposed Basin Plan Amendment
- TMDL Project Technical Report
- CEQA Checklist and Analysis
- Scientific Peer Review
- October 6, 2023 – Notice of Opportunity for Participation
- September 27, 2022 – Notice of Availability for Public Comment and State Board meeting (English | Español)
Central Coast Water Board Adoption Meeting (2022)
- June 16, 2022 – Central Coast Water Board Adopted TMDL documents
Staff Report - March 11, 2022 – Draft TMDL Documents
Additional Information
- October 16, 2020 - Draft Data Analysis Report
- October 9, 2020 - Project Summary
- November 15, 2019 - Fact Sheet
Subscribe to our Email Lists
- To be notified of updates and meetings regarding this TMDL please subscribe to the Salinas River Pesticide TMDLs email subscription list
Contacts
- Keara Tuso
805-549-3877
Keara.Tuso@waterboards.ca.gov
Status and Public Notices
- Status:
- Report Card - October 2016
- Report Card - October 2020
- Report Card - September 2021
- Report Card - September 2023
- Public Notices:
Approval status
- Central Coast Water Board
- Adopted June 21, 2024
- State Water Board
- Approved October 7, 2025
- Office of Administrative Law
- Approved February 25, 2026
