Mahoning SWCD

For Mahoning County Erosion and Sediment Control (ESC) Rules, SWP3 Fee Structure and Application for Coverage Under the Mahoning County ESC Rules click on Construction Sites Link.

Stream systems, including their corridors and wetland resources are vital environmental
features and are extremely sensitive to urbanization. The intent of this manual is to
provide guidelines and strategies that would allow development to occur while
minimizing the impact on water resources, especially streams.

This manual defines Ohio’s standards and specifications for stormwater practices
implemented during land development. It is an update of the previous Rainwater and
Land Development Manual completed in 1996.

This manual aims to integrate water resource protection into development site planning in
order to maintain or improve stream integrity. Early chapters discuss practices and
strategies for protecting streams and wetlands, treating storm water pollutants,
rehabilitating streams and establishing permanent runoff controls. The later portion of
the manual includes chapters regarding construction-phase practices, including standards
and specifications for sediment control, temporary runoff control, soil stabilization, and
control of pollutants other than sediment. Appendices offer further information regarding
stormwater design examples, permits, helpful contacts, and soils.

The manual will be available for download in PDF format from the ODNR website or
hard copies may be obtained by contacting ODNR Division of Soil and Water
Conservation. (Although this version has been updated, it remains a draft as we make further changes regarding the use of the rational method in the examples. Final version expected to be complete January, 2007).

On April 21, 2005 , the Board of Mahoning County Commissioners adopted legislation to enhance management of stormwater runoff and further curb flooding events in the county. A document, referred to as the "Mahoning County Drainage and Erosion and Sediment Control Manual" became effective with that resolution. The Manual is in response to guidelines set forth in the Clean Water Act and the Ohio EPA Phase II Storm Water Program mandate.

As Mahoning County continues to meet the mandates set forth by the OhioEPA Phase II Stormwater Program, requires the development of a Stormwater Pollution Prevention Plan (SWPPP) for projects disturbing one (1) or more acres of land.

The Mahoning Soil and Water Conservation District (SWCD), as outlined in the Mahoning County Stormwater Management Plan, is involved in the plan approval process. The SWCD reviews the SWPPP, determining that appropriate Best Management Practices (BMPs) have been designed for a specific site. A checklist is used as a guide for SWPPP development and approval. Specifically, SWCD staff will review the use and location of BMPs and for compliance with OhioEPA Construction General Permit (CGP) conditions. During construction, the SWCD performs on-site inspections to ensure that measures are being implemented in accordance with terms of the permit.