Safe Drinking Water

Environmental Health is responsible for overseeing the siting, design, construction, and water quality testing of new drinking water wells in Tuolumne County. The objectives of this oversight are to help assure that well water is safe and sustainable, and does not provide a pathway for contaminants to reach the groundwater aquifer.

LinksSafe Water B Webpage

Safe Water A Webpage

Contact Us

  1. Environmental Health

    Physical Address:

    A.N. Francisco Building

    4th Floor

    48 Yaney Ave.

    Sonora, CA 95370

    Mailing Address:

    2 S. Green St.

    Sonora, CA 95370

    Ph: 209-533-5639

    Fx: 209-533-5616


    Monday through Thursday

    8:00 a.m. -  3:00 p.m.

    Closed on Fridays

    Inspections Line: