A septic tank discharge permit is mandatory for any non-recreational vehicle discharging septic waste to Tracy’s Wastewater Treatment Plant (WWTP).

Only septic waste (cesspool, portable toilet, septic tank, etc.) is allowed to be discharged. No grease interceptor waste, hazardous contaminants (explosive, infectious, toxic, flammable, corrosive), or industrial waste.

Hours of operation are Mondays – Fridays between the hours of 6:00am and 4:00pm. Closed most holidays and weekends.

A valid permit must be on file, and City account(s) must be up-to- date to discharge.

All discharging tanks must comply with the California Health and Safety Codes and Regulations of the San Joaquin Local Health District. Septic tank discharge reports (provided by the City of Tracy) must be filled out in full and deposited in the box located at the WWTP Administrative Building.

All waste discharged to the WWTP must originate within the Tracy service area or sphere of influence, which includes the following zip codes: 95304, 95376, 95377, 95378, and 95391.