(a) Maintenance of grease interceptors is the sole responsibility of the owner/operator. The owner/operator must ensure proper operation to achieve compliance, and prevent interference or damage to the collection system.
(b) All grease interceptors must be pumped or cleaned at approximately 75 percent retention capacity or 25 percent total volume of accumulated bottom solids and top grease layer.
(1) They must be pumped dry and the contents hauled and disposed of off-site, at an approved facility.
(2) Recycling of oil and grease is preferred.
(3) The use of enzymes, or similar materials for the cleaning of grease interceptors shall not be permitted.
(c) Grease interceptor pumping or cleaning, at a minimum, must be completed at least every three months, unless determined more or less frequent pumping is required.
(d) Discharged water from the grease trap shall not exceed 100mg/L oil and grease at any time, using an EPA approved test procedure specified in 40 CFR.
(e) (1) "Grandfathered" sources shall implement Best Management Practices (BMP's) to ensure compliance with established discharge limits.
(2) In the event that BMP's do not successfully reduce quantities of fats, oil and grease being introduced to the collection system, those sources are subject to installation of a grease interceptor.
(f) (1) Documentation of grease interceptor pumping or cleaning is required for all facilities.
(2) Approved documentation shall be a copy of the returned receipt from the contracted pumper/hauler or a copy of a signed maintenance log certified by the User/Operator.
(Ord. 2729. Passed 10-1-01.)