This post does not constitute legal advice.
Operators and owners of AFOs need to be aware that the new General Discharge Permit (NPDES # MDG01, State Discharge Permit #14AF) for AFOs that discharge to waters of the State became effective December 1, 2014. The new permit is a revised version of the previously issued AFO General Discharge Permit issued December 1, 2009. All large and medium AFOs that discharge to waters of the State must be covered under the General Discharge permit. Use this AFO size chart to determine if your animal feeding operation is small, medium or large:
A small AFO is not required to be covered under the General Discharge Permit unless the Maryland Department of the Environment “MDE” or the Environmental Protection Agency “EPA”specifically designates the operation as having the potential to discharge a pollutant into a waterway. If so designated, then a small AFO would also need to be covered by the General Discharge Permit. Maryland requires a General Discharge Permit to prevent nutrients from Maryland’s largest agricultural animal operations from entering local waterways.
To read more click over to the Maryland Risk Managemetn Education Blog.