Plumbing Engineering · Grease Interceptors

Grease Interceptor Engineering

Grease interceptors separate and trap grease, fats, and oils from commercial kitchen waste before it enters the sanitary sewer system. Sizing a grease interceptor correctly is critical — undersized interceptors don't work, and the jurisdiction's food service or industrial waste department often has specific requirements for interceptor type, size, and installation.

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What This Engineering Scope Covers

Grease interceptor sizing calculations
Gravity grease interceptor (GGI) design — underground vault type
Hydromechanical grease interceptor (HGI) design — under-sink or in-line
Interceptor location and installation design
Kitchen fixture connection to interceptor
Health department and POTW coordination
Grease interceptor access and maintenance considerations
Food service drain waste and vent piping design
Permit drawings for interceptor installation
Interceptor specification and sizing documentation

What You Get

Grease interceptor sizing calculations
PE-stamped grease interceptor permit drawings
Interceptor specification
Kitchen plumbing drainage plan
Permit package including interceptor documentation

How Apex Grid Handles This

Apex Grid Engineering is licensed in 49 states — every U.S. state except Alaska. Engineering stamping and licensure are confirmed for each project jurisdiction. We provide grease interceptor engineering as a standalone service or coordinated with structural, MEP, civil, and geotechnical engineering under one contract.

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Frequently Asked Questions

What does grease Interceptor Engineering cover?

This scope covers grease interceptor sizing calculations, gravity grease interceptor (GGI) design — underground vault type, hydromechanical grease interceptor (HGI) design — under-sink or in-line, and interceptor location and installation design.

What deliverables come with grease Interceptor Engineering?

Deliverables include grease interceptor sizing calculations, PE-stamped grease interceptor permit drawings, interceptor specification, kitchen plumbing drainage plan, and permit package including interceptor documentation.

Can this service stand alone?

Grease Interceptor Engineering is provided as a standalone service or coordinated with structural, MEP, civil, and geotechnical engineering under one contract.

Who stamps the engineering for this scope?

Apex Grid Engineering is licensed in 49 states — every U.S. state except Alaska. Engineering stamping and licensure are confirmed for each project jurisdiction.

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