§ 52.13 STATE PRETREATMENT STANDARDS.

   A user shall comply with state pretreatment standards (327 IAC 5-18-8, as amended from time to time) applicable to the user. If the state pretreatment standards are less stringent than the national pretreatment standards or local pollutant limitations applicable to the user, the user shall comply with the more stringent standards. The state pretreatment standards, as amended from time to time, are hereby incorporated by reference into this chapter.

(Ord. 5746, passed 7-1-2019)

§ 52.14 LOCAL POLLUTANT LIMITATIONS.

   (A)   No person shall discharge wastewater containing concentrations, referred to as local pollutant limitations, in excess of:

      2.1 mg/L   arsenic

      1.2 mg/L   cadmium

      4.5 mg/L   copper

      1.75 mg/L   cyanide

      200 mg/L   total fats, oils or grease (FOG)

      100 mg/L   total petroleum hydrocarbons (TPH)

      0.60 mg/L   lead

      0.009 mg/L   mercury

      4.1 mg/L   nickel

      4.0 mg/L   phenol

      1.2 mg/L   silver

      7.0 mg/L   chromium

      4.2 mg/L   zinc

   (B)   The above limits apply at the point where the wastewater is discharged to the POTW. All concentrations for metallic substances are for total metal unless indicated otherwise. The control authority may impose mass limitations in addition to the concentration-based limitations above.

(Ord. 5746, passed 7-1-2019; Am. Ord. 5799, passed 4-6-2020)

§ 52.15 BEST MANAGEMENT PRACTICES.

   The Director may develop BMPs, by ordinance or in individual wastewater discharge permits, to implement local limits and the requirements of §§ 52.10 and 52.11.

(Ord. 5746, passed 7-1-2019)