§ 5.10.150. Pretreatment.

(a)

Users shall provide necessary wastewater treatment as required to comply with this chapter and shall achieve compliance with all National Categorical Pretreatment Standards within the time limits as specified by the National Pretreatment Regulations. Any facilities required to pretreat wastewater to a level acceptable to the city 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 director for review and shall be acceptable to the director before construction of the facility. The review of such plans and operating procedures will in no way relieve the user from the responsibility of modifying the facility as necessary to produce an effluent acceptable to the city under the provisions of this chapter. Any subsequent change in the pretreatment facilities or method of operation shall be reported to and be accepted by the director prior to the user's initiation of the changes. The director shall annually publish in the local newspaper with the largest circulation, a list of the users which were found to be in significant noncompliance with applicable pretreatment standards during the twelve (12) previous months. The notification shall also summarize any enforcement actions taken against the user(s) during the same twelve (12) months. All records relating to compliance with pretreatment standards shall be made available to officials of the EPA or approval authority upon request.

(b)

The Environmental Protection Administration (EPA) issued a ruling under 40 CFR 441 requiring dental offices to manage the discharge of waste dental amalgams to the public sanitary sewer system. The link to that ruling is:

https://www.federalregister.gov/documents/2017/06/14/2017-12338/effluent-limitations-guidelines-and-standards-for-the-dental-category. Applicability of this rule to dental offices is defined in 40 CFR 441.10. A summary of the requirements of this rule is available at https://www.epa.gov/eg/dental-effluent-guidelines. Included among the requirements are amalgam recovery, documented maintenance of the amalgam recovery equipment and proper disposal of the recovered material. Also required is a one-time certification of compliance to this rule.

(Ord. 5123 § 2 (part), 1993).

(Ord. No. 6227, § 8, 3-9-2015; Ord. No. 6303, § 2, 9-25-2017).