San Andreas Sanitary District’s Operators are responsible for maintaining 18.61 miles of sewer pipes. That’s 98,249 feet. These pipes transport 250,000 gallons of raw sewage to the treatment facility daily. The Operators then direct wastewater through physical, biological and chemical treatment processes in order to remove all oxygen demand and all disease-causing organisms. After verification for compliance to stringent laboratory standards, the treated water is discharged to either the North Fork Calaveras River or to sprayfields where the cleaned water eventually evaporates.