Cincinnati, OH Environmental Rules: Erosion Control (2026)

1 sets the core threshold: an excavation and fill permit cannot be issued for an excavation or fill comprising the movement of more than 1,000 cubic yards of material or disturbing one acre or more, whichever is more restrictive, unless the application is accompanied by an operational plan the Cincinnati Stormwater Management Utility determines sufficient to ensure operations aren't offensive or objectionable due to erosion, siltation, dust, or construction site pollutants. That operational plan must include a narrative site description (total area, disturbed area, impervious area estimates, soil data), maps at a scale of at least 1 inch to 50 feet showing contours, drainage patterns, and erosion controls, a construction-phase stormwater narrative, a post-construction stormwater narrative, and a recorded inspection and maintenance plan for permanent stormwater control practices.

The threshold also applies to smaller contiguous excavations under common ownership or control that together exceed 1,000 cubic yards or one acre. 3 lets the director revoke a permit for noncompliance or offensive operations. Separately, § 1113-05 requires setbacks of excavation and fill slope tops and toes from property boundaries and structures sufficient for safety and foundation support, and § 1113-13 lets the director require a performance bond covering restoration costs where early termination would create a hazard.