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Fats, Oil and Grease Beautiful Downtown Burbank Presenters: Juan Gonzalez, and Stacey Christian Support: Randy Mark
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Fats, Oil & Grease Collection System & POTW Impacts CMOM POTW Environment
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Background Fats, Oil, and Grease, also called FOG in the wastewater business can have negative impacts on wastewater collection and treatment systems. Commercial Residential Industrial Wastewater Treatment Plant
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What is FOG? Comes from food sources: animal and plant Compound fatty acids and glycerol Large O&G molecules are >150 microns (when free floating) Hydrophobic – insoluble in water Hardens and accumulates in sewers – Results in Blockages
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Processes that generate FOG Food Preparation Cooking Baking Frying with Oil Cleaning Utensils, Dishes, Pots & Pans Cleaning of Floors
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Blockages Blockages Result in: Sewer spills Manhole overflow Sewage back-ups in homes or businesses
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Sewer Spills, Overflows and Back-Ups Sewage spills, overflows, and back ups occur when wastewater being transported through underground pipes overflows through a manhole, cleanout, or broken pipes. Sewage spills can potentially cause health hazards, cause damage to homes and businesses, and threaten the environment, local waterways, and beaches.
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Beautiful Downtown Burbank
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City Crew Report -Areas of Heavy & Medium Grease
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Inspection of Grease Trap
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Inspection of Grease Interceptors
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Grease Interceptor Overflow
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Investigation Findings Improperly sized interceptors Nonfunctional Interceptors Poor Operation and Maintenance Lack of Service Adding Enzymes Lack of Interceptor Lack of Understanding
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Enforcement Cite 40 CFR 403.5 …Solid or viscous pollutants in amounts which will cause obstruction to the flow in the POTW resulting in interference… BMC 25-107 …clarifiers….shall be maintained in good operating condition and in conformity with applicable law by the owner of the property…
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Solutions Train Inspectors Implement Grease Interceptor Maintenance Plan Include Interceptor Maintenance in Control Mechanism Outreach BMPs
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Solutions-Performance Standard Inspect Grease Interceptor
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Interceptor Maintenance Plan Location of Interceptor Interceptor Maintenance Frequency Person Responsible Rendering Company Past History Compliance Criteria Problem Notification Log
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Evaluation – How do we know it’s working?
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Questions?
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