Boonville Local limits ordinance (§ 21-204)

The superintendent is authorized to establish local limits pursuant to 40 CFR 403.5(c) to protect against interference and pass through. The local limits, expressed in pounds per day, shall be allocated to the industrial users at the discretion of the director via wastewater discharge permits issued to significant industrial users and other industrial users, as necessary. The wastewater discharge permits may contain the local limits as a mass value or an appropriate concentration value. All local limits will be expressed as maximum dally values. The sum total of each allocation shall not exceed the maximum allowable industrial load (MAIL). The MAILs are subject to change as local environmental conditions changes. All changes to MAILs shall be approved by MDNR.

Total Maximum Allowable Industrial Load Pollutant (lbs./day)

Arsenic 0.72

Cadmium 7.20

Chromium 7.20

Total Maximum Allowable Industrial Load Pollutant (lbs./day)

Copper 7.12

Cyanide 0.70

Lead 0.72

Mercury 0.72

Nickel 7.17

Silver 1.80

Zinc 7.05

BOD 3,729

TSS 4,392

Ammonia 265

The local 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 superintendent may impose mass limitations in addition to, or in place of, the concentration-based limitations above.

The director may develop best management practices (BMPs), by ordinance or in individual wastewater discharge permits, to implement local limits and the requirements of section 21-201.