Minnesota Administrative Rules
Agency 167 - Pollution Control Agency
Chapter 7053 - STATE WATERS DISCHARGE RESTRICTIONS
EFFLUENT LIMITS AND TREATMENT REQUIREMENTS FOR DISCHARGES TO WATERS OF THE STATE
Part 7053.0263 - EFFLUENT LIMITS FOR POINT SOURCE DISCHARGES OF SEWAGE, INDUSTRIAL, AND OTHER WASTES TO PROTECT WATER QUALITY FOR IRRIGATION

Universal Citation: MN Rules 7053.0263

Current through Register Vol. 49, No. 13, September 23, 2024

Subpart 1. Scope. The effluent limits in this part are in addition to the effluent limits specified elsewhere in this chapter. In the event of a conflict between this part and other applicable regulations, the more stringent requirement applies.

Subp. 2. Definitions. Definitions in parts 7050.0150, subpart 4, and 7053.0135 apply to this part.

Subp. 3. Developing effluent limits to protect irrigation water quality.

A. The commissioner must use the procedures in Class 4A Translator Method, which is incorporated by reference in item D, to determine whether a discharger would cause or contribute to an impairment of the class 4A irrigation water quality, except for when protecting wild rice.

B. Water-quality-based effluent limits must protect water quality at the point at which water is withdrawn for irrigation at all flows at or above the 122Q10 critical low flow.

C. When the commissioner determines, using the procedures incorporated in item D, that a discharger requires a water-quality-based effluent limit to protect irrigation water quality, the commissioner must include an effluent limit in the discharger's control document.

D. Class 4A Translator Method, Minnesota Pollution Control Agency (April 2021), is incorporated by reference. The document is not subject to frequent change and is available at www.pca.state.mn.us/regulations/incorporations-reference.

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