We work with the Mahoning County Engineer’s Office, on behalf of the county commissioners, to provide technical assistance for contractors, developers and engineers relative to stormwater issues. Anytime an acre of land is disturbed due to construction, a stormwater plan must be submitted, according to Ohio Environmental Protection Agency regulations.
We assist contractors by doing inspections, testing soils and assisting with best management practices. For more information on the Ohio Environmental Protection Agency’s Storm Water Management plan, click here.
Stormwater is rain water that runs off the land into streams and other bodies of water. Stormwater programs manage the quantity and quality of stormwater to ensure clean and affordable drinking water, safe recreation and the prevention of flooding.
Below are links to some helpful manuals, schedules, permit checklists, Q&As, regulations and other important background documents for contractors, developers and engineers.
Drainage & Erosion Manual
This manual is in response to guidelines set forth in the Clean Water Act and the Ohio EPA Phase II Storm Water Program.
show more StormWater Manual w Cover (PDF) Appendix A-MAHONING ESC RULES (PDF) Appendix B-MAHONING COUNTY FLOODPLAIN REGULATIONS (PDF) Appendix C-MAHONING SWCD PLAN REVIEW FEE SCHEDULE (PDF) Appendix D-MAHONING SWP3 REVIEW CHECKLIST(PDF) Appendix E-OHIO EPA CONSTRUCTION GENERAL PERMIT(PDF) Appendix F-OHIO EPA FORMS AND PERMITS Appendix G-OHIO EPA SITE INSPECTION CHECKLIST (PDF) Appendix H-ODNR RAINWATER AND LAND DEVELOPMENT MANUAL Appendix I-POST CONSTRUCTION GUIDANCE MANUAL (PDF) Appendix J-OHIO EPA POST CONSTRUCTION Q & A DOCUMENT Appendix K-HYDROLOGIC WORKSHEETS (PDF) show less show more Mahoning County Erosion and Sediment Control Rules (PDF) SWPPP Review Procedure and Enforcement Escalation Plan (PDF) Mahoning Soil and Water Conservation District Ohio EPA Construction Storm Water Program show less show more SWCD offers residential services to assess and resolve issues with ponds, lakes, flooding, water channels, streams and more. We assess soil and elevation and conduct inspections to determine the causes of flooding and help prevent flooding in the future. We also assist with operation and maintenance plans for stormwater pollution prevention plans. Please contact our office for more information. Marlee Float Skimmers promote cleaner discharge of water from temporary sediment ponds by floating an intake mechanism closer to a pond’s surface, where sediment from runoff is lighter. Drainage management can be a challenge in Mahoning County, where clay-heavy soil settles slowly. Stormwater education is essential for everyone because water runoff can become polluted and can affect wildlife, drinking water supplies, recreational areas and fisheries. Everyone plays a role in pollution prevention. Non-point source pollution comes from a variety of sources and is difficult to control. It is the leading cause of water quality issues in Ohio. Here are common non-source point pollutants. Soil and water conservation districts receive state matching funds for local government partnerships, bringing partners more value for their money. As political subdivisions of the state, soil and water districts provide a variety of stormwater-related services to communities, including: Alliance for Watershed Action and Resource Education Mahoning County Engineer’s Office Mahoning County Sanitary Engineer Ohio Department of Natural ResourcesErosion and Sediment Control Rules
Model Regulations
Residential Stormwater Assistance
Stormwater Education
Key Stormwater Partners