Current through Register Vol. 48, No. 50, June 10, 2024
Part 7053.0305 - REQUIREMENTS FOR ANIMAL FEEDLOTSSubpart 1.Definitions.For purposes of this part, the terms in items A to D have the meanings given them.
A. "Animal feedlot" has the meaning given in part 7020.0300, subpart 3.B. "Animal manure" has the meaning given in part 7020.0300, subpart 4.C. "Manure storage area" has the meaning given in part 7020.0300, subpart 14.D. "Treatment works" has the meaning given in Minnesota Statutes, section 115.01, subdivision 21, and includes a vegetated filter or buffer strip located between an animal feedlot or a manure storage area and a receiving water.Subp. 2.Effluent limits for a discharge.A. Any person discharging pollutants to surface waters of the state from an animal feedlot or manure storage area who is not regulated by federal requirements under part 7053.0225, subpart 1, shall comply with the following limits after allowance for pollutant removal by a treatment works: | Pollutant | Limiting Concentration |
| Five-day biochemical oxygen demand | 25 mg/L (arithmetic mean of all samples taken during any calendar month) |
If the discharge is directly to or affects a lake, shallow lake, or reservoir, or to the waters listed in part 7053.0255, subpart 5, the person discharging the pollutants shall comply with the nutrient control requirements in part 7053.0255, subpart 3, items A and
B. Feedlots are not considered new or expanded discharges as defined in part 7053.0255, subpart 2. B. The effluent limits in item A are not applicable whenever rainfall events, either chronic or catastrophic, cause an overflow from an animal feedlot or manure storage area designed, constructed, and operated: (1) to meet the effluent limits in item A for rainfall events less than or equal to a 25-year, 24-hour rainfall event for that location; or(2) to collect and contain the runoff from a 25-year, 24-hour rainfall event for that location.Statutory Authority: MS s 115.03; 115.44