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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, 2017. 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. 


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 See the video provided by PG&E.

Tuolumne Utilities District is actively planning for the potential of extended power outages with the goal of minimizing water service interruption. The challenge is the array of infrastructure and terrain that the District’s service area covers. The District is aggressively pursuing backup power generators to meet the power needs of critical infrastructure. If a PSPS event occurs for an extended amount of time, TUD will be asking all customers to conserve and limit outdoor water usage until power is restored. For more information on how to prepare,

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.

Tue 24

Regular Board Meeting

September 24 @ 2:00 pm - 4:00 pm
Oct 08

Regular Board Meeting

October 8 @ 8:00 am - 5:00 pm
Oct 22

Regular Board Meeting

October 22 @ 8:00 am - 5:00 pm


Traffic Advisory for Phoenix Lake Road in Sonora

TRAFFIC ADVISORY FOR PHOENIX LAKE ROAD Tuolumne Utilities District field crews will be performing cleaning and video inspections on sewer pipelines starting today, Tuesday, September 10th, on Phoenix Lake Road in Sonora.   Traffic controls with flaggers and one-way traffic will be in place on Phoenix Lake Road between Meadow Brook Drive and Silver Dawn Drive […]

Annual Ditch Outage in October

The Pacific Gas and Electric Company (PG&E) Tuolumne Main Canal that conveys 95% of Tuolumne Utilities District’s water supply will be shut down for PG&E’s regular maintenance from Monday, October 14th through Sunday, October 20th, 2019. With this in mind, the District asks that you limit your water use during this time frame while PG&E […]


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.




Oneil tunnel

O’Neil Tunnel Improvements Project

Tuolumne Utilities District (TUD) has started the O’Neil Tunnel Improvements Project with improvements to the O’Neil Tunnel, which is located on the historic 1852 Table Mountain Ditch, one of thirteen ditch conveyance systems the District operates. The O’Neil tunnel is located at the end of the Table Mountain Ditch at O’Neil Reservoir near Jamestown.  The [...]
5 Aug, 2019 Read More

Bourbon Street Water Main Replacement Project

Tuolumne Utilities District will oversee the installation of a new water main as part of the Bourbon Street Water Main Replacement Project which started on September 4, 2018. TUD received three bids for the project and the TUD Board awarded the project to Njirich & Sons, Inc. in the amount of $324,307.75. The Bourbon Street [...]
18 Sep, 2018 Read More

Jamestown Reservoir Replacement

The Jamestown Reservoir Replacement Project replaces an antiquated one million gallon in-ground reservoir with a one million gallon welded steel tank which supplies treated water to the community of Jamestown. In February 2017, The District was awarded grant funding and obtained a sub-recipient funding agreement with Tuolumne County from the Community Development Block Grant (CDBG) [...]
12 Nov, 2017 Read More

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