Process wastes are collected and managed as fertilizer or soil amendment by spreading onto agricultural fields at agricultural rates. There is no discharge except as allowed in accordance with the effluent limitation guidelines contained within the permit.
A concentrated animal feeding operation is a facility where animals are confined or stabled and fed for 45 days or more in a 12-month period. A CAFO confines more than 1,000 animal units. Animal units are based on the weight of the animal. Facilities generating more than 50,000 gallons per day of domestic wastewater are not eligible for this general permit. This permit does not cover land disturbance activities or construction of earthen basins.
Visit the department’s Concentrated Animal Feeding Operation website to learn more.
Length of Permit
The department issues this general permit for a five-year period. The effective date is Feb. 14, 2023 and expires Feb. 13, 2028. If a facility applies for and receives this permit on April 28, 2024, their permit will expire Feb. 13, 2028.
Laws, Rules and Regulations
- Federal Law: Federal Clean Water Act
- State Law: Concentrated Animal Feeding Operation - Sections 640.700 to 640.760, RSMo
- State Law: Missouri Clean Water Law - Chapter 644, RSMo
- Code of State Regulations: Division 20 - Clean Water Commission, 10 CSR 20
- Commission, Board, Council: Missouri Clean Water Commission