Grease Interceptor

Operation & Maintenance
  • Operation of the grease interceptor (JPG) slows the flow of wastewater and allows the grease, fats, oils and solids to separate as shown below. The treated wastewater then flows to the city sewer system.
  • Maintenance is performed by a licensed Liquid Waste Hauling Company. This service ensures that the grease, solids and liquids are completely removed from the grease interceptor and disposed of properly.
  • Service is typically required 4 times per year, depending on type and volume of food preparation at the business.
  • Minimum tank size capacity is 750 gallons.
Grease Interceptor Diagram
Multiple Family Units
Interceptors are required in new Multiple Dwelling Units and for Multiple Dwelling Units which have experienced a sanitary sewer overflow (SSO). Download a copy of the City of Fountain Valley Grease Interceptor Cleaning Record (PDF).

If it is impossible or impractical to install an interceptor in an existing Multiple Dwelling Unit that had sewage spill, the owner shall agree to comply with measures that the Building Official shall impose to mitigate the problems likely to be caused by the Multiple Dwelling Unit, including any combination of the following:
  • Installation of other devices, such as grease traps
  • Security and other assurances that appropriate maintenance will occur
  • The posting of bonds or payment of such amounts of money as will reimburse the city for its costs in performing extra line cleaning or similar preventative or remedial work