FOG.
Fats, oils, and grease. Organic polar compounds derived from animal and/or plant sources that contain multiple carbon chain triglyceride molecules. These substances are detectable and measurable using analytical test procedures established in 40 CFR, part 136, as may be amended from time to time.
Grease.
Any material recovered as a substance soluble in trichlorotrifluoroethane including biological and mineral hydrocarbons, such as, but not limited to, thick oils, viscous lubricants, etc. “Grease” or “greases” does not include “fats, oils and greases,” as defined in this section.
Grease trap or interceptor.
A device designed to use differences in specific gravities to separate and retain light density liquids, waterborne fats, oils and greases prior to the wastewater entering the POTW. These devices also serve to collect settleable solids, generated by and from food preparation activities, prior to the water exiting the trap and entering the POTW. Grease traps and interceptors may also be referred to in this article as “grease/interceptors.”
Grit/sand trap or oil water separator.
A device used in commercial or industrial applications designed to use differences in specific gravities to separate and retain light density liquids, waterborne hydrocarbon oils, greases, and settable solids prior to the wastewater entering the sanitary sewer collection system.
Lint trap.
Wire basket or similar device, removable for cleaning, used in laundry facilities, that prevents the discharge of solids 0.25 inch (6.35 mm) or larger, into the POTW.
Oil water separator.
See grit/sand trap, oil water separator.
Oil water separator waste.
Hydrocarbon laden material collected in and from an oil water separator, or combination grit/sand trap or oil water separator in the sanitary sewer service line of a commercial or industrial user.
(Ordinance 2020-O0150, sec. 18, adopted 11/2/2020)
The following are specific prohibitions which a user must not contribute to any POTW: A user may not contribute the following substances to any POTW:
Any water or waste which may contain more than two hundred fifty (250) mg/l by weight of fat, oil or grease.
(Ordinance 2020-O0150, sec. 18, adopted 11/2/2020)
(a) 
Grease traps/interceptors, grit/sand traps, oil water separators and lint traps shall be provided when, in the opinion of the director of water utilities, they are necessary for the proper handling of liquid wastes containing grease in excessive amounts, or any flammable wastes, sand or other harmful ingredients; except, that such interceptors shall not be required for private single-family living quarters or dwelling units. All interceptors shall be located so as to be readily and easily accessible for cleaning and inspection.
(b) 
All grease traps/interceptors, grit/sand traps, oil water separators and lint traps (collectively or individually, “trap”) and monitoring facilities shall comply with the city document, “subject: grease interceptor regulations,” attached hereto as appendix I and incorporated herein for all purposes, and shall be installed in accordance therewith. All users shall comply with the discharge limitations specified in this article.
(c) 
Any person responsible for discharges requiring a trap shall at his own expense and as required by the director of water utilities:
(1) 
Maintain the trap in effective operating condition by removing the oil and grease and solids buildup in the trap, subject to the exception set forth below, at a minimum of once every ninety (90) days to ensure compliance with this article. If a user can, at his/her own expense, produce scientific evidence consisting of FOG test results analyzed in accordance with Code of Federal Regulations, 40 CFR 136.3, as same may be amended from time to time, that establishes that a ninety (90) day pumping schedule is not necessary to otherwise comply with this article, the director of water utilities may prescribe an alternate maintenance interval for such user. Evaluation of the disputed trap maintenance schedule shall be performed on a case-by-case basis requiring scientific evidence for each individual factual situation.
(2) 
Receive a copy of the manifest from the person who transports the liquid waste and trap material and shall be responsible for maintaining manifests at the business address of the trap for a period of not less than three (3) years. Transporters of waste and trap material shall provide to the director of water utilities a copy of all liquid waste and trap material transport trip manifests. These copies shall be due to the director of water utilities on or before the tenth (10th) day of each month following the transportation event.
(Ordinance 2020-O0150, sec. 18, adopted 11/2/2020)
The city may adopt charges and fees in accordance with section 1.03.004 of the Code of Ordinances of the city, which may include:
Industry specific fees for reimbursement of costs incurred by the city related to setting up and operating the city’s pretreatment program, including without limitation the analysis of FOG: $40.00.
(Ordinance 2020-O0150, sec. 18, adopted 11/2/2020)