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Grease Interceptors, Alternate Sizing & Sample Ports

Grease interceptors are designed to separate out the Fats, Oils and Greases (FOGs) and solids normally found in food preparation from the wastewater being discharged to the City's sanitary sewer system. The FOGs and solids have to be removed on a regular basis in order for the grease interceptors to work properly. It is recommended that the grease interceptor be cleaned when the FOGs and solids make up 25% of the wetted volume of the interceptor. A copy of the grease interceptor waste hauler's Trip Tickets must be kept on site for a period of three years.

It is a violation of the City of Lubbock Code of Ordinances Chapter 22, Article 22.04, Division 3, Section 22.04.083 (2) and (5) to discharge water containing greater than 250 mg/l of FOG or to cause a blockage in the line.

Grease Interceptor & Port

Grease Interceptor Alternate Sizing

Alternate sizing for grease interceptors shall be considered on a case by case basis.

Sample Ports

Properly installed Sample Ports enable the Industrial Waste Monitoring & Pretreatment personnel to collect a representative sample of the wastewater being discharged to the City of Lubbock sanitary sewer system. A sample port is required for any commercial facility that, prepares food, serves beverages, and/or generates any type of high strength waste or grease. All wastewater flow with the exception of restroom waste must be routed through the sample port. Where elevations allow, the grease trap or grease interceptor discharge shall be required to have a minimum of a 6 inch vertical drop inside the sample port.