- Public Works
- FOG Ordinance (Fats, Oils, and Greases)
- FOG - Best Management Practices
FOG - Best Management Practices
Train all staff members about FOG best management practices (BMPs) so everyone can help implement them. Have each kitchen staff member sign a form confirming date of training.
Post No Grease Signs
Post no grease signs above sinks and on the front of dish washers as reminders to help staff minimize grease discharge to the grease traps and interceptors.
Use Water Temperatures Less Than 140°F
Use water temperatures less than 140°F in all sinks, especially the pre-rinse sink before the mechanical dishwasher. Temperatures higher than 140°F will dissolve grease, but the grease can re-congeal or solidify in the sanitary sewer system as the water cools.
Use a Three Sink Washing System
Use a three-sink dish washing system with sinks for washing, rinsing, and sanitizing in a 50 to 100 ppm bleach solution. This system uses water temperatures less than 140°F, where a mechanical dishwasher requires a minimum temperature of 160°F.
Dry Wipe All Dishware before Cleaning
Dry-wipe pots, pans, and dishware before dish washing and place the grease and food in garbage receptacles to keep it out of grease traps and interceptors.
Recycle Waste Cooking Oil
There are many commercial waste oil recycling options, which could provide an income source as well as saving money by reducing the amount of garbage hauled away.
Recycle Food Waste or Place it in the Garbage
Some recycling companies take food waste for animal feed. Otherwise food waste should be disposed of as solid waste in landfills to reduce the frequency and cost of grease trap and interceptor cleaning.
Witness all Grease Trap or Interceptor Cleaning and Maintenance
Grease trap/interceptor haulers and recycling companies may take shortcuts. The establishment manager should inspect the cleaning operation to ensure it is consistent with the proper procedure for grease trap and interceptor maintenance and to ensure the device is properly operating.
Clean Under Sink Grease Traps Weekly
If grease traps are more than 50 percent full when cleaned weekly, the cleaning frequency needs to be increased. If the establishment does not have a grease interceptor, the under-sink grease trap is the only means of preventing grease from entering the sanitary sewer system. If the grease trap is not providing adequate protection, the establishment may be required to install a grease interceptor. Establishments should use a grease trap in conjunction with a grease interceptor. Weekly cleaning of grease traps by the establishment’s own maintenance staff will reduce the cost of cleaning the grease interceptor.
Clean Grease Interceptors Routinely
Grease interceptors must be cleaned routinely to ensure proper operation. Cleaning frequency will depend on the type of establishment, the size of the interceptor, and the volume of flow discharged.
Keep Maintenance Log
The maintenance log records the frequency and volume of the interceptor cleanings. It is required to ensure that the grease trap/interceptor maintenance is performed on a regular basis.
Cover Outdoor Grease and Oil Storage Containers
Uncovered grease and oil storage containers can collect rainwater. Since grease and oil float, the rainwater can cause an overflow onto the ground and in the storm water system and nearby streams.
Locate Grease Dumpsters and Storage Containers away from Storm Drainage
The farther away from the catch basin, the more time someone has to clean up spills or drainage before it can enter the storm drain system. Avoid dripping oil and grease on the ground while carrying it to the dumpster and watch for oil and grease that may ooze from the dumpster.
Use Absorbent Pads or Similar Material to Clean Up Spills Outside
Use absorbent pads or other material to clean up spilled material around outdoor equipment, storage containers, or dumpsters. If grease dumpsters and containers must be located near storm drain catch basins, absorbent pads and other like material can serve as an effective barrier to grease and oil entering the storm drain system. Do not use free flowing materials such as kitty litter or sawdust.
Routinely Clean Kitchen Exhaust System Filters
Washing kitchen exhaust system filters will discharge the grease to the interceptor where it can be controlled. If grease and oil escape through the kitchen exhaust system, it can accumulate on the roof of the establishment and eventually enter the storm drain system when it rains.