TUD Urges Customers to Use Water Wisely!

TUD Thanks Customers for Using Water Wisely and Encourages Water Use Efficiency

As the State and local region continue experiencing exceptionally dry conditions during the current drought, Tuolumne Utilities District (TUD) would like to acknowledge its customers and the community for making water conservation a way of life.

Recent hydrology models indicate that Lyons Reservoir will drop to a lower than optimal water level by early September this year. If customers continue to make conscious choices in the wise use of water, it may help alleviate the impacts of potentially decreased water levels and water quality this summer at Lyons Reservoir.

TUD customers may benefit by following some or all of these water use efficiency tips for treated water:

  • Apply irrigation water during the evening and early morning hours (7 PM and 9 AM) – it is cooler and winds tend to be calmer so water can soak into the soil and be absorbed before it can evaporate.
  • Check irrigation systems for leaks and make repairs.
  • Adjust sprinklers to avoid runoff.
  • Replace older sprinklers with high-efficiency rotary nozzles – this can improve your sprinkler system’s water efficiency by up to 30%.
  • Use a broom to clean sidewalks and pavements instead of water from a hose.
  • Inside your home: Fix a toilet leak – this can save up to 200 gallons of water per day.
  • Operate your clothes and dishwashers with full loads only, even if the machine has an adjustable load setting.

More water use efficiency tips can be found at


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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, 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 9am 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.

Board of 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.

Upcoming Meetings

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 9am on the 2nd and 4th Tuesday of the month.


Regular Board Meeting


Regular Board Meeting

Water Services

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.

Sewer Services

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.
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TUD Office and Board Chambers CLOSED

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 Customers may experience additional wait times, we thank you for your patience.