A. It shall be the responsibility of any facility connected to the city wastewater facility to provide pretreatment of the wastes discharged to the city wastewater system so that the influent complies with the requirements of Chapter 13.25 SCC. The owner of each facility connected to the city wastewater system shall provide, install, maintain in good operation, repair and replace, at his or her own expense, such pretreatment as may be necessary to reduce objectionable characteristics or constituents to within the maximum limits provided for in this code. Plans, specifications and any other pertinent information relating to proposed preliminary treatment facilities shall be submitted for the approval of the director and city engineer. No construction of such facilities shall be commenced until the director’s or city engineer’s approval has been obtained in writing. The completed facilities shall not be placed in service until they have been inspected for conformance to the approved plans and the final construction approved by the city engineer. The approval of the plans and inspection of construction shall not relieve the owner from complying with discharge limitations set forth in this division.

B. Where installed, all pretreatment devices and systems shall be maintained by the owner, at his or her expense, in continuously efficient operation at all times.

C. Materials removed by pretreatment devices or processes shall be disposed of in accordance with all state and local regulations, at the expense of the owner. The city has no obligation to accept pretreatment wastes from within or without the city limits for handling and disposal. Pretreatment wastes from within the city may, however, be accepted by the city in accordance with policy approved by the city council and for fees set by the city manager commensurate with all city expenses for the handling and disposal of such wastes, including the city’s administrative costs.

D. As a minimum pretreatment requirement, grease, oil or sand interceptors shall be provided by food preparation or food handling facilities, laundries, restaurants, service stations, auto repair shops, car washes and other facilities that have the potential to discharge high levels of grease, oil or solids. An exemption to this requirement may be granted when it can be shown (and the owner of a facility sets forth in a recorded document) the specific activities that will be conducted on the site that will not produce wastewater containing oils, greases, or fats.

E. No residential garage floor drain shall be connected to the city wastewater system.

F. It shall be the responsibility of the owner and operator of any facility to provide regular maintenance of any grease, oil, or sand filter to include but not limited to the cleaning of their grease traps and interceptors at least once every six months. Should current maintenance practices prove ineffective by evidence of analytical test data or reoccurring maintenance problems within the city’s wastewater collection system, an alternative method of maintenance shall be required by the city.

G. All interceptors, traps, and separators shall be of a type and capacity approved by the engineer and shall be located as to be readily and easily accessible for cleaning and for inspection by the director or the director’s designee. In no case shall the type or capacity be less than that specified in the city plumbing code.

H. Grease and oil interceptors and separators shall be constructed of impervious materials capable of withstanding abrupt and extreme changes in temperature. They shall be of substantial construction, watertight and equipped with easily removable covers. When bolted covers are required, they shall be gastight and watertight. [Code 2006 § 13-10-2. Ord. 2009-04, 4-14-2009; amended during 2012 codification; Ord. 2014-06 § 1, 5-27-2014; Res. 2014-10 Exh. A, 5-27-2014].