What is a grease trap?

These devices are holding tanks that are designed to interrupt the flow of wastewater of less than 50 gallons per min. They work in exactly the same way as the interceptor but are much smaller in size. These types of units may only be used by a facility that has completed a variance application and received written approval from the Director of Public Services. The minimum size of these units is 50-gallon capacity and they are typically installed above ground and inside the building. These types of units must be cleaned out by a professional hauler every 90 days or if the unit exceed 20% of its removal capacity. These types of units will be considered in violation if the layer of grease exceeds two (2) inches and/or the layer of solids exceeds five (5) inches.

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1. What is a grease trap?
2. What is required of Non-residential Sewer Users?
3. What are oil and grease interceptors and oil and water separators?
4. When should these units be emptied?
5. How does the Oil and Grease Management Program work?
6. What happens to Users that do not comply with the OGMP?
7. Who do I contact with other questions about grease management?