(A) Restaurants (existing and new). All restaurants or food service facilities shall install an approved grease interceptor which is of sufficient size so as to prevent excessive discharges of grease into the town's sewerage system. The grease interceptor shall be easily accessible for inspection by the Public Works Director. Exceptions to the installation of a grease interceptor shall be determined on a case- by-case basis by the Public Works Director. The Public Works Director shall take into account the following items when determining exceptions:
(1) Size of restaurant;
(2) Meals served per day;
(3) Daily water usage based upon water bills;
(4) Seating capacity;
(5) Dishwasher and garbage disposal facilities on-hand.
(B) Car washes, radiator shops, vehicle service stations, and garages (existing and new). Car washes will be required to install mud pits and a gravity separating device designed to prevent the discharge of sand, silt, oil and grease to the town's sewerage system. Radiator shops, vehicle service stations, and garages will be required to plug floor drains and remove sinks in the service bays and repair shops.
(C) Laundries and dry cleaners (existing and new). After the effective date of this chapter, all laundries and dry cleaners or similar establishments shall install lint filters and a gravity separating device of a size and design approved by the Public Works Director. They shall also install any other pretreatment facility required by the Public Works Director to ensure their compliance with all requirements and specifications of this chapter. Establishments in existence prior to this date shall install an appropriate pretreatment system if in the opinion, of the Public Works Director the system is warranted.
(D) Existing gravity separating device and grease interceptors. If the Public Works Director finds that a grease interceptor or gravity separating device installed prior to the effective date of this chapter is incapable of retaining adequately the grease or sand and oil in the wastewater flow from a service station, car wash or restaurant or similar establishment, the Public Works Director shall give the proprietor a written notice requiring that an adequate interceptor or gravity separating device be installed within 90 days.
(E) Approved designs.
(1) The Public Works Director may maintain an information file available for public use of acceptable designs of grease interceptors and gravity separating devices. The installation of a design shown in such file or of any design meeting the size requirement set forth in this chapter or any recommendation of requirements made by the Public Works Director shall not impute any liability to the town for the adequacy of the interceptor or gravity separating device under the actual conditions of use. Such installation shall not relieve the owner or proprietor of responsibility for keeping prohibited substances or substances above the limitations of this chapter out of the town's sewerage system, if the interceptor, gravity separating device or other pretreatment facility is not adequate under the conditions of use, one shall be constructed which is effective in accomplishing the intended purpose.
(2) Size selection of grease interceptors or gravity separation devices for existing and new facilities required by this chapter are as follows:
Facility | Units | Minimum Interceptor or Gravity Separator Size (Gallons) |
Facility | Units | Minimum Interceptor or Gravity Separator Size (Gallons) |
Restaurants | 1 - 2 | 40 - 100 gallon (grease capacity) |
(Unit = fixture unit) | 3 - 4 | 350 |
Pertains to all fixture units handling grease, liquid wastes, sands, solids, acid, alkaline, and other ingredients harmful to the sewer system | >4 | 750 |
Laundries and dry cleaners (unit = washes/day) | 0 - 10 | None required |
1 - 30 | 350 | |
31 - 60 | 750 | |
>60 | 1,250 | |
Single wash bay (unit = washes/day) | 1 - 2 | 350 |
>2 | 750 | |
Multi truck/car wash | 1,000 | |
Warehouse (unit - floor drains) | 1 | 350 |
>1 | 750 | |
(F) Maintenance of grease interceptors and gravity separating devices. Any grease interceptor or gravity separating device required by this chapter shall be readily accessible for inspection and properly maintained to assure that the accumulations of grease or sand and oil do not impair its efficiency or pass out with the effluent. All users required to use and maintain a grease interceptor or gravity separating device shall maintain a maintenance record. This record shall include the date, the name of the person who cleaned it and the disposal site of the waste. The report shall be reviewed by the Public Works Director at each routine inspection. Persons hauling wastes and wastewater removed from these interceptors or gravity separating devices shall be registered to do so by the proper permitting agency. An interceptor or gravity separating device shall not be considered properly maintained if material accumulations total more than 25% of the operating fluid capacity. The town will endeavor to inspect all grease interceptors and gravity separating device at least yearly, if it is found that it is improperly maintained or adequate records are not being kept, a warning will be issued to the owner and/or user of the property, if on subsequent inspections it is found that one of the above conditions continues to exist, a fine shall be levied against the owner and/or user of the property.
(Ord. 09-03, passed 2-10-2009)