Environmental Rules in Dayton, OH (2026)
4 verified environmental rules for Dayton, Ohio, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
Dayton's stormwater ordinance bars dumping sewage, industrial waste, oil, pesticide runoff, or any other pollutant into the city's storm sewer system (MS4), enforced by the Department of Water Director with fines up to $1,000 per day.
Dayton Bans Illicit Discharges Into Storm Drains
Significant RestrictionsDayton R.C.G.O. § 54.09(A)
No person shall: (1) Place, cause to be placed, or maintain any material in the MS4 that obstructs or pollutes the flow in any part thereof; excluding leaves during leaf collection periods; ... (6) Cause or permit any illicit discharge to the MS4; (7) Discharge, spill, or dump sewage, industrial wastes, or other wastes into stormwater or into any water of the state, or streets, driveways, sidew...
Erosion Control
Dayton requires anyone disturbing one acre or more of earth to get a stormwater pollution prevention plan approved by the Water Director or Ohio EPA before grading, excavating, or filling.
Dayton Earth-Disturbing Activity Permit
Significant RestrictionsDayton R.C.G.O. § 54.05(A)
No person may engage in earth-disturbing activity without complying with the provisions of this chapter, the "City of Dayton, Ohio, Construction and Materials Specifications," the rules and standards published by the Director, and the Ohio EPA's NPDES Construction Activity General Permit. No person may engage in earth-disturbing activity of one acre or more without a SWP3 approved by the Direc...
Flood Zones
Any filling, grading, construction, or watercourse alteration within Dayton's mapped special flood hazard areas requires a floodplain development permit from the Floodplain Administrator before work begins.
Dayton Floodplain Development Permit
Significant RestrictionsDayton R.C.G.O. § 152.66
It shall be unlawful for any person to begin construction or other development activity including but not limited to filling, grading, construction, alteration, remodeling, or expanding any structure; or alteration of any watercourse wholly within, partially within or in contact with any identified special flood hazard area, as established in Section 152.58, until a floodplain development permi...
Flood Elevation Requirements
New and substantially improved residential structures in Dayton's flood hazard areas must have their lowest floor raised to the flood protection elevation: the base flood elevation plus 1.5 feet of freeboard.
Dayton Flood Protection Elevation Standard
Some RestrictionsDayton R.C.G.O. § 152.80(D)
New construction and substantial improvement of any residential structure, including manufactured homes, shall have the lowest floor, including basement, elevated to or above the flood protection elevation. In areas with no elevations specified, the structure shall have the lowest floor, including basement, elevated at least two feet above the highest adjacent natural grade.
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County ordinances apply to unincorporated areas and may supplement Dayton city rules.
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