A. “Approved” means accepted by the utility manager or designee, and where UPC requirements apply, the building official or designee.

B. “Best management practice (BMP)” means a technique or methodology that, through experience and research, has proven to reliably lead to a desired result.

C. “Facility” means any food service establishment and any other user or business that discharges polar or nonpolar fats, oils, and/or grease to the sanitary sewer collection system, including but not limited to car washes, quick-lube stations, fueling stations, auto-detail shops, automotive and equipment repair, service shops, and any business using steam or pressure washers.

D. “Fats, oils, and grease (FOG)” means organic compounds derived from animal, plant, petroleum, and/or mineral sources that contain multiple carbon triglyceride molecules. These substances are detectable and measurable using analytical procedures established in Title 40 of the Code of Federal Regulations Part 136 (40 CFR 136). Fats, oil or grease are either polar (animal or vegetable origin) or nonpolar (petroleum or mineral origin).

E. “FOG pretreatment device” means a grease interceptor, hydromechanical grease interceptor, grease trap, other grease removal device, and/or oil/water separator.

F. “Food” means any raw, cooked, or processed edible substance, ice, or ingredient used or intended for use or sale in whole or in part for consumption.

G. “Food service establishment (FSE)” means a commercial establishment in which food is manufactured or packaged for consumption; retail and wholesale grocery stores, retail seafood stores, food processing plants, bakeries, confectioneries, fruit, nuts and vegetable stores and places of business and similar establishments, mobile or permanent, engaged in the sale of food primarily for consumption off premises; and/or any establishment for the preparation and serving of meals, lunches, short orders, sandwiches, frozen desserts, or other edible products and/or which is required to have a food business permit issued by King or Snohomish County Department of Health. The term includes: restaurants, coffee shops, cafeterias, short order cafes, luncheonettes, taverns, lunchrooms, places that manufacture retail sandwiches, soda fountains, institutional cafeterias, catering establishments, food vending vehicles, similar business by whatever name called, and operations connected therewith.

H. “Grease” means rendered animal fat, vegetable shortening, and other such oily matter used for the purposes of and resulting from preparing and/or cooking food.

I. “Grease removal device (GRD)” means a device designed to separate fats, oils, and grease from liquid waste prior to the wastewater entering the sanitary sewer system. A GRD not only separates the FOG from the wastewater but also removes the FOG from the interceptor. There are two basic types of GRDs: timer-controlled and sensor-controlled.

J. “Grease interceptor” means an interceptor of at least 750-gallon capacity whose rated flow exceeds 50 gallons per minute (gpm) to serve one or more fixtures and which is remotely located underground and outside of a facility. It is designed to collect, contain, or remove food wastes and grease from the waste stream while allowing the balance of the liquid waste (“gray water”) to discharge to the wastewater collection system by gravity.

K. “Grease trap” means a hydromechanical grease interceptor (HGI) device located inside a facility designed to retain grease from one to a maximum of four fixtures whose rated flow is 50 gallons per minute (gpm) or less. It is designed to collect, contain, or remove food wastes and grease from the waste stream while allowing the balance of the liquid waste to discharge to the sanitary sewer system by gravity or mechanical means.

L. “Minimum design capability” means the design features of a grease interceptor and its ability to or the volume required to effectively intercept and retain grease from grease-laden wastewaters discharged to the sanitary sewer system.

M. “Nonpolar” means any water or waste of mineral or petroleum origin that contains more than 100 parts per million by weight of fats, oils, or grease as measured using analytical procedures established in 40 CFR Part 136.

N. “Oil/water separator” means a large capacity underground vault installed between a drain and the connecting sewer pipe designed to remove nonpolar oil (petroleum- or mineral-based) from the waste stream. These vaults are designed with baffles or coalescing plates to trap sediments and retain floating oils. The large capacity of the vault slows down the wastewater, allowing oil to float to the surface and solid material to settle out. Businesses that require oil/water separators include, but are not limited to, quick-lube stations, transportation fueling facilities, vehicle/heavy equipment repair, and potentially businesses using steam or pressure washers.

O. “Polar” means any water or waste of animal or vegetable origin that has visible fats, oils, or grease floating on the surface or adhering to the sides of the sample containers.

P. “Rendering/disposal company” means a business that possesses a pumper certification.

Q. “Uniform Plumbing Code (UPC)” means the requirements that govern the installation, alteration, removal, replacement, repair, or construction of all plumbing. The building official is the authority having jurisdiction that enforces such code.

R. “User” means any person who contributes, causes, or permits the contribution of wastewater into the city of Bothell sanitary sewer system. (Ord. 2261 § 3, 2018).