Inground Interceptors

Inground grease interceptors and under-the-sink traps are designed to prevent grease, oil, solids and other debris from entering the waste stream, where it becomes a problem by clogging sewers and disrupting the water flow in the system. They capture those wastes and contain them until a transporter, pumper service or the food service establishment (FSE) can properly remove them. Both interceptors and traps are inspected annually by a Commercial Pretreatment Inspector for proper maintenance. The following are suggestions for maintaining inground interceptors:

Inground Grease Interceptors:

  • Inground grease interceptors must be maintained on a minimum quarterly basis by an approved transporter.  Alternate maintenance schedules may be approved by the Commercial Pretreatment Inspector.
  • Train all staff on the location, purpose, function and proper maintenance schedule.
  • Backups, odors and drainage problems are all signs that your inground grease interceptor is not functioning properly. Proper installation of screens on all kitchen drains is required.
  • The most important management procedure for inground interceptors is that a FSE manager or representative be present during any cleaning performed by a transporter. Transporters must pump out the grease interceptor completely. No skimming is allowed.

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