OH SB224

Requires owners and operators of animal feeding facilities applying 350+ tons of dry manure annually to file reports with the Director of Agriculture detailing manure application amounts, transfers, and subwatershed locations.

Director of Agriculture must adopt rules establishing requirements and procedures for manure reporting, including guidelines for calculating manure generation using animal units as the measurement standard.

Amends operation and management plan requirements for persons operating 50+ acres of agricultural land or small/medium concentrated animal feeding operations to require approval by the Director or soil and water conservation district supervisors.

Changes enforcement language in Section 939.07 from permissive "may" to mandatory "shall" regarding the Director's authority to propose corrective actions and assess civil penalties for non-compliance with agricultural pollution standards.

Clarifies that operating in substantial compliance with an approved operation and management plan serves as an affirmative defense in private civil actions for agricultural pollution nuisances.