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Given the growing threat of extreme hot, windy weather, Pacific Gas and Electric Company (PG&E) is alerting customers to be prepared for power outages to minimize the risk of power lines sparking a fire. If extreme fire danger conditions threaten a portion of the electric system serving our region, it will be necessary for PG&E to turn off electricity in the interest of public safety. This is called a Public Safety Power Shutoff (PSPS). Learn more about Public Safety Power Shutoffs that could impact you this wildfire season, visit PG&E’s PSPS website.

For more information about how you can prepare for a PSPS power outage, visit TUD’s Emergency Page


Customer Service

TUD strives for excellence in customer service. A dedicated staff provides a wide range of services including assisting our customers with all water and wastewater service related issues, changes regarding your account, billing, payment processing and water use efficiency.

Annual Water Quality Report

Tuolumne Utilities District has released its Annual Water Quality Report (also known as the Consumer Confidence Report) covering all testing of treated drinking water performed from January 1st through December 31, 2019. The water quality report covers the 11 water service areas the District serves, 11 surface water treatment plants, and 12 active wells. 


Thank you for your interest in working for Tuolumne Utilities District. The District is committed to employing and retaining a high quality, motivated workforce dedicated to delivering high-quality services to the community.

Board of Directors

The Board of Directors establishes policies for the operation of the District. The public is encouraged and invited to attend the regularly scheduled District Board meetings which occur at 2pm on the 2nd and 4th Tuesday of the month.


The District views the budget as an essential tool for proper financial management. The budgets are developed with input from the various department levels of the TUD organization.

Development Services

Our Engineering department would be glad to assist you on new water or sewer service at TUD, new development or other services. 


PSPS Power Outage In Effect – Conserve Water

Tuolumne Utilities District (TUD) along with most of Tuolumne County is currently in a PG&E Public Safety Power Shutoff (PSPS) event. While TUD anticipates minimal service interruption, an extended power outage could result in reduced water pressure or loss of water in some service areas. Customers who have experienced issues of low water pressure or […]

Board Directors

TUD is governed by a five-member Board of Directors, elected at large. The Board of Directors establishes policies for the operation of the District.

Board Vision & Goals

The Board of Directors meet annually to set Strategic Goals, Vision, Plan and Execution for the District.

Agenda, Minutes & Video

TUD Board of Director meetings can be viewed LIVE by simply connecting through the internet. Or to find out more about the TUD Board meetings – including Agenda, Minutes or Video any time.


The Board of Directors establishes policies for the operation of the District. The public is encouraged and invited to attend the regularly scheduled District Board meetings which occur at 2pm on the 2nd and 4th Tuesday of the month.

Oct 13

Regular Board Meeting

October 13 @ 2:00 pm - 4:00 pm
Oct 27

Regular Board Meeting

October 27 @ 2:00 pm - 4:00 pm
Nov 10

Regular Board Meeting

November 10 @ 2:00 pm - 4:00 pm


Approximately 95% of the water the District distributes originates from the South Fork Stanislaus River and is impounded in Pacific Gas and Electric Company’s (PG&E) Lyons and Pinecrest Reservoirs. PG&E owns and operates a canal and flume system to convey water from Lyons Reservoir to the Phoenix Powerhouse. The District owns and operates a total of 71 miles of ditch, flume, pipe, and tunnel infrastructure that diverts water from the PG&E system at various locations. The majority of TUD customers reside in or near the community of Sonora which is at about elevation 2,000 feet elevation. TUD also serves customers in several communities to the east up to about elevation 6,000 feet elevation past Sierra Village.



The District utilizes approximately 140 miles of sewer pipeline to collect between 400-500 million gallons of sewage per year. The Sonora Regional Wastewater Treatment Plant was constructed in the late 1970’s along with a network of sewer trunk lines to collect sewage from the surrounding areas of Columbia, East Sonora, Mono Village, Mono Vista, Ranchos Poquitos, Soulsbyville, Twain Harte, and Willow Springs. Also in the late 1970’s, a regional reclamation system was constructed that allows for the reuse of the treated sewer effluent for irrigation on pasture lands outside of the community of Jamestown. The overall sewer system directly serves approximately 6,000 residential, commercial and industrial customers.



Gopher Tank Replacement Project Update – September 3, 2020

UPDATE - SEPTEMBER 3, 2020 General Contractor: Njirich & Sons, Inc. Tank Manufacturer: Crosno Construction, Inc. Funding Source: Community Development Block Grant Construction Status: Under Construction Projected Project Completion Date: October 2020 The Gopher Tank Replacement Project is identified in the Tuolumne Utilities District’s Capital Improvement Plan, adopted by the Board of Directors in June [...]
3 Sep, 2020 Read More
Techite Pipeline

Water Main Replacement Project Approved by TUD Board

The TUD Board of Directors on Tuesday, August 25th, approved District Staff to proceed with Phase I of the Techite Pipeline Replacement Project to Njirich & Sons Inc. in the amount of $414,224. District field crews respond to mainline water breaks multiple times each year on the segment of Techite pipeline from the Crystal Falls [...]
28 Aug, 2020 Read More

TUD Board Awards Construction Contract for the Phoenix Lake Project

The Tuolumne Utilities District (TUD or District) Board of Directors on Tuesday, May 5th awarded a $4.1 million contract to Steve Manning Construction, Inc. (SMC) for the construction of the Phoenix Lake Preservation and Restoration Project. The Board unanimously supported the contract approval at a Special Board meeting held May 5th via a publicly accessible [...]
7 May, 2020 Read More

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TUD Closes Office and Board Chambers Due to COVID-19

In an effort to reduce the transmission risk of COVID-19, Tuolumne Utilities District (TUD) office and Board Chambers are closed until further notice. TUD staff remains available to assist customers via telephone or email at customersvc@tudwater.com. Customers may experience additional wait times, we thank you for your patience. Click here for information about how to contact TUD.

Click here for Frequently Asked Questions regarding COVID-19 and your drinking water supply.