The Storm Water Technical Assistance Program in Ohio EPA’s Division of Surface Water (DSW) assists communities, developers, contractors, and consulting engineers with controlling the adverse impacts associated with new and existing development, including increased runoff, polluted storm water, stream erosion, and loss of floodplain services. This program provides guidance for cost-effective and preventive measures (best management practices) that can be applied to limit these impacts during construction and after development. These practices control erosion and trap sediments during construction, treat pollutants from developed areas, reduce storm water runoff and protect downstream waters. Practice standards and specifications are available through the Rainwater and Land Development manual. Tools are available online to help comply with Ohio’s NPDES permit requirements and other regulations.
On the website you will find links to storm water design manuals, erosion and sediment control Q&A documents, post-construction Q&A documents, tools and spreadsheets, and forms and checklists. Below are some of the new/updated tools available.
Storm Water Sediment Control Questions and Answers Sediment Settling Ponds – This new document provides answers to questions frequently asked about the proper use of temporary construction sediment settling basins and traps.
Sediment Basin Compliance Tool – This new spreadsheet tool may be used to verify a temporary sediment settling basin plan (including volumes and skimmer size) complies with the construction storm water general permit criteria as well as rainwater and land development guidance.
Water Quality Volume Calculator – This new spreadsheet tool can be used to calculate the required post-construction water quality volume (WQv) for either new construction or re-development projects.
The updated BMP Compliance Worksheets developed through Summit SWCD and previously available on our website have been updated. Version 3.2 reflects current design guidance for bioretention practices among other minor edits throughout the tool.
If you have questions, please contact the Central Office storm water technical assistance staff Justin.Reinhart@epa.ohio.gov or Wesley.Sluga@epa.ohio.gov.