Onsite Wastewater

Environmental Health is responsible for overseeing the siting, design, construction, and maintenance of onsite wastewater systems (septic systems) in Tuolumne County.  The objectives of this oversight are to help assure that:

  • Water quality and the environmental will be protected
  • The systems will not fail prematurely
  • Public health and safety will be protected
  • The systems will be maintained properly
  • Homeowner are provided with essential information needed to maintain their systems