Pinto Lake catchment TMDL addressing cyanobacterial blooms
On 16 July 2020, the Central Coast Regional Water Quality Control Board adopted a total maximum daily load (TMDL) for phosphorus and an associated implementation strategy for improving water quality in Pinto Lake, located in Santa Cruz County. Reducing phosphorus loading to Pinto Lake is anticipated to reduce the frequency and severity of cyanobacteria blooms. The TMDL implementation strategy describes how the Water Board’s regulatory mechanisms, and non-regulatory actions will address phosphorus loads from various sources in order to attain water quality standards.
Approved TMDL documents
- US Environmental Protection Agency approved on November 21, 2021
- Office of Administrative Law approved on September 9, 2021
- State Water Resources Control Board approved on April 20, 2021 (Resolution No. 2021-0014)
- Concise Summary
- Staff Report
- Resolution No. R3-2020-0034 and Basin Plan amendment
- TMDL Report
- Implementation Strategy Report
- CEQA Checklist and Analysis Report
- Scientific Peer Review and Staff Responses
- Public Comments and Staff Responses
TMDL Documents Available for Public Review and Comment (March 13 - May 1, 2020)
- Notice of Opportunity to Comment and Notice of Public Hearing
- Proposed Resolution and Basin Plan Amendment
- TMDL Report
- TMDL Implementation Plan
- CEQA Analysis Report and Checklist – note this document was prepared in April 2018 and will be revised to incorporate more recent administrative changes but the findings have not changed
- Scientific Peer Review Comments and Staff Responses to Comments
Any document not available for download here may be obtained by email or in hard copy by contacting Pete Osmolovsky (see contacts box).
- May 31, 2018 - Pinto Lake Restoration Project, 319(h) Grant Final Report, City of Watsonville
- December 15, 2016 - Septic system maintenance guidelines to protect environmental quality
- December 8, 2016 - Public Outreach Brochure containing information on land and property management practices local residents can voluntarily implement to protect and improve Pinto Lake
- December 5, 2016 - Draft Voluntary Guidance for Blue-Green Algae Blooms (July 2010, with 2016 updates)
- November 14, 2016 - Funding opportunities for watershed improvement - Fall 2016
- November 4, 2015 - USEPA - A Homeowner’s Guide to Septic System Maintenance
- September 14, 2015 - Outreach letter to livestock owners
- July 31, 2015 - USEPA frequently asked questions regarding harmful algal blooms and cyanobacteria toxins
- June 5, 2015 - Funding Opportunities for Watershed Improvement - Summer 2015
- Video - Keeping California Water Clean - Addressing Residential Runoff
- March 2013 - Pinto Lake Implementation Strategy (Santa Cruz RCD)
TMDL Development Documentation
- April 18, 2017 - Progress Report
- November 5, 2015 - Progress Report
- August 3, 2015 - Data Solicitation Request
- June 2, 2015 - CEQA scoping meeting
- Draft notes - management measures and environmental impacts.
- April 27, 2015 - Scoping Report
- July 22, 2014 - Workshop presentation
- May 21, 2014 - Fact Sheet - Pinto Lake algal toxins TMDL
- Video: What is a TMDL?
For Additional Information
- Many or all of the documents available on this webpage are presented in a Portable Document Format (PDF). You will need Adobe Acrobat Reader, or similar software, to view these documents. You can download the latest version of Adobe Acrobat Reader, free of charge, by clicking here. Users with visual disabilities can visit the Adobe accessibility webpage here for conversion tools and information to help make PDF files accessible.
- Some documents available on this webpage may be presented as Microsoft PowerPoint files. If you don’t have PowerPoint installed on your computer, you can still view PowerPoint presentations by downloading PowerPoint Viewer, free of charge, from Microsoft.com by licking here.
Subscribe to our Email Lists
- To be notified of updates and meetings regarding this TMDL please subscribe to the Pinto Lake Blue Green Algae email subscription list
- Pete Osmolovsky
Status and Public Notices
- Status: Approved and effective September 9, 2021 (see California Code of Regulations section 3929.18)
- Report Card (2018)
- Adopted by the Central Coast Water Board on July 16, 2020
- Approved by the State Water Resources Control Board April 20, 2021
- Approved by the Office of Administrative Law September 9, 2021
- Approved by the US Environmental Protection Agency on November 21, 2021.