(A) Pretreatment facilities. Users shall provide wastewater treatment as necessary to comply with this chapter and wastewater permits issued under § 53.051 and shall achieve compliance with all national categorical pretreatment standards, local limits, and the prohibitions set out in § 53.015 within the time limitations as specified by EPA, the state, or the POTW Director, whichever is more stringent. Any facilities necessary for compliance shall be provided, operated, and maintained at the user’s expense. Detailed plans showing the pretreatment facilities and operating procedures shall be submitted to the county for review, and shall be approved by the POTW Director before construction of the facility. The review of such plans and operating procedures shall in no way relieve the user from the responsibility of modifying the facility as necessary to produce an effluent acceptable to the county under the provisions of this chapter. Any subsequent changes in the pretreatment facilities or method of operation shall be reported to and be approved by the POTW Director prior to the user’s initiation of the changes.
(B) Additional pretreatment measures.
(1) Specific restrictions. Whenever deemed necessary, the POTW Director may require users to restrict their discharge during peak flow periods, designate that certain wastewater be discharged only into specific sewers, relocate, and/or consolidate points of discharge, separate sewage wastestreams from industrial wastestreams, and such other conditions as may be necessary to protect the POTW and determine the user’s compliance with the requirements of this chapter.
(2) Flow storage/equalization. The POTW Director may require any persons discharging into the POTW to install and maintain, on their property and at their expense, a suitable storage and flow-control facility to ensure equalization of flow. A wastewater discharge permit may be issued solely for flow equalization.
(3) Oil, grease and sand separator and interceptors.
(a) Purpose and scope. The goal of this section is to prevent excessive introduction of oil, grease, sand, and other harmful or hazardous substances into the sewer system and wastewater treatment plant. These substances have the potential for creating sanitary sewer overflows, hazardous conditions in the collection system, treatment plant inhibitions, increased treatment costs, fines, and other costs for the county.
(b) Overview. All food establishments and other users shall provide a means of preventing grease and oil or sand discharges to the sewer collection system. Where a separator or interceptor currently exists or is required by the county, it shall be maintained for continuous, satisfactory, and effective operation by the owner, leaseholder, or operator, at his or her expense. Separators and interceptors shall be of a type and capacity approved by the county and shall be located so as to be readily accessible for cleaning and inspections. All users are encouraged to use proper handling procedures. All interception units shall be of type and capacity approved by the Director and shall be so located as to be easily accessible for cleaning and inspection. Such interceptors shall be inspected, maintained, cleaned, and repaired regularly, as needed, by the user at their own expense. The user shall be responsible for maintaining records (manifest) detailing the dates of service, quantity of waste removed, end disposal site of waste, and hauler. These records shall be kept on site at the user’s location and subject to the Director’s review without prior notification. It is unlawful for any facility producing oil, grease, sand or other harmful or hazardous waste to discharge it into the county’s collection system. See also the Grease Control Policy beginning at § 53.118.
(c) Users with the potential to discharge flammable substances may be required to install and maintain an approved combustible gas detection meter.
(1996 Code, § 53.016) (Ord. passed 5-7-2007; Ord. passed 2-7-2011; Ord. passed 9-3-2013; Ord. passed 12-4-2017) Penalty, see § 53.107