§ 25-97. Pretreatment.  


Latest version.
  • (a)

    Users shall provide necessary wastewater treatment as required to comply with this article and shall achieve compliance with all federal categorical pretreatment standards within the time limitations as specified by the federal pretreatment regulations and shall also comply with local limits (see section 25-74) and the prohibitions set out in section 25-71. Any facilities required to pretreat wastewater to a level acceptable to the POTW 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 superintendent for review, and shall be acceptable to the POTW 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 POTW under the provisions of this article. Any subsequent changes in the pretreatment facilities or method of operation shall be reported to and be acceptable to the POTW prior to the user's initiation of changes.

    (b)

    All records relating to compliance with pretreatment standards shall be made available to officials of the EPA or approval authority upon request.

    (c)

    The superintendent shall publish annually, in a newspaper of general circulation that provides meaningful public notice within the jurisdictions served by the POTW, a list of the users which, at any time during the previous twelve (12) months, were in significant noncompliance with applicable pretreatment standards and requirements. The term significant noncompliance shall be applicable to all significant industrial user (or any other industrial user) that violates paragraph 25-97(c)(3), (4) or (5) and shall mean:

    (1)

    Chronic violations of wastewater discharge limits, defined here as those in which sixty-six (66) percent or more of all the measurements taken for the same pollutant parameter taken during a six (6) month period exceed (by any magnitude) a numeric pretreatment standard or requirement, including instantaneous limits as defined in section 25-63;

    (2)

    Technical review criteria (TRC) violations, defined here as those in which thirty-three (33) percent or more of wastewater measurements taken for each pollutant parameter during a six (6) month period equals or exceeds the product of the numeric pretreatment standard or requirement including instantaneous limits, as defined by section 25-63 multiplied by the applicable criteria (1.4 for BOD, TSS, fats, oils and grease, and 1.2 for all other pollutants except pH);

    (3)

    Any other violation of a pretreatment standard or requirement as defined by section 25-63 (daily maximum, long-term average, instantaneous limit, or narrative standard) that the superintendent determines has caused, alone or in combination with other discharges, interference or pass-through, including endangering the health of POTW personnel or the general public;

    (4)

    Any discharge of a pollutant that has caused imminent endangerment to the public or to the environment, or has resulted in the superintendent's exercise of its emergency authority to halt or prevent such a discharge;

    (5)

    Failure to meet, within ninety (90) days of the scheduled date, a compliance schedule milestone contained in an individual wastewater discharge permit or a general permit or enforcement order for starting construction, completing construction, or attaining final compliance;

    (6)

    Failure to provide within forty-five (45) days after the due date, any required reports, including baseline monitoring reports, reports on compliance with categorical pretreatment standard deadlines, periodic self-monitoring reports, and reports on compliance with compliance schedules;

    (7)

    Failure to accurately report noncompliance; or

    (8)

    Any other violation(s), which may include a violation of best management practices, which the superintendent determines will adversely affect the operation or implementation of the local pretreatment program.

    (Ord. No. 12-1700-936, § 1, 10-2-12)

(Ord. No. 12-1700-936, § 1, 10-2-12)