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Public Information

Here you will find links to a variety of Oak Park Water Service documents. Simply click on the desired document title. To view or print a document, you will need the Adobe Acrobat Reader. Click here to download the necessary software for free.

For public information items not listed below, please download the Public Records Request form. When complete, email it to This email address is being protected from spambots. You need JavaScript enabled to view it., Clerk of the Board, or mail it to Ms. Rodriguez's attention at Triunfo Sanitation District, 1001 Partridge Drive, Suite 150, Ventura, CA 93003, or fax it to 805-658-4633.


TSD Resolution T16-002 State Water Efficiency Landscape Ordinance (January 25. 2016)

Water Quality-Related

Triennial Tap Water Lead and Copper Study Results

TSD-OPWS Self-Certification Analysis - 2016

2018 Annual Water Quality Report
In accordance with United States Environmental Protection Agency regulations, Oak Park Water Services prepares and publishes an Annual Water Quality Report.


2015 Urban Water Management Plan
As an urban water supplier providing water to more than 4,500 customers or supplying more than 3,000 acre-feet of water to customers for municipal purposes, Oak Park Water Service is required by the state water code to prepare and adopt an Urban Water Management Plan (UWMP). This plan is updated every five years (in years ending in ‘0’ and ‘5’) in accordance with the UWMP Act (California Water Code Sec. 10610).