1. Fats, Oil and Grease Beautiful Downtown Burbank Presenters: Juan Gonzalez, and Stacey Christian Support: Randy Mark

2. Fats, Oil & Grease Collection System & POTW Impacts CMOM POTW Environment

3. 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

4. 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

5. Processes that generate FOG Food Preparation Cooking Baking Frying with Oil Cleaning Utensils, Dishes, Pots & Pans Cleaning of Floors

6. Blockages Blockages Result in: Sewer spills Manhole overflow Sewage back-ups in homes or businesses

7. 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.

8. Beautiful Downtown Burbank

9. City Crew Report -Areas of Heavy & Medium Grease

10. Inspection of Grease Trap

11. Inspection of Grease Interceptors

12. Grease Interceptor Overflow

13. Investigation Findings Improperly sized interceptors Nonfunctional Interceptors Poor Operation and Maintenance Lack of Service Adding Enzymes Lack of Interceptor Lack of Understanding

14. 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…

15. Solutions Train Inspectors Implement Grease Interceptor Maintenance Plan Include Interceptor Maintenance in Control Mechanism Outreach BMPs

16. Solutions-Performance Standard Inspect Grease Interceptor

17. Interceptor Maintenance Plan Location of Interceptor Interceptor Maintenance Frequency Person Responsible Rendering Company Past History Compliance Criteria Problem Notification Log

18. Evaluation – How do we know it’s working?

19. Questions?