Our Water Quality Management Plan
OKI maintains the Water Quality Management Plan for Butler, Clermont, Hamilton and Warren counties in southwest Ohio.
This plan is required by Section 208 of the federal Clean Water Act, which says that areas with substantial water quality problems must develop a management plan to control pollution on a regional or “area wide” basis.
OKI’s plan is a living document, continually edited and updated. Initially, updates to our original 208 plan, which was completed in late 1977 and adopted in early 1978, were limited due to lack of federal funding.
In 2009, the state of Ohio committed to stable funding for the plan’s maintaining and updating. Its first major update was completed in 2011; since then, OKI has regularly updated chapters and GIS data.
What is a Water Quality Management Plan?
Water quality management plans describe and promote efficient and comprehensive programs for controlling water pollution from point and nonpoint sources in a defined geographic area.
Ohio EPA and 208 Planning
Ohio EPA reviews and updates, as necessary, the state’s 208 Plan.
By federal law, however, states cannot issue discharge permits for wastewater treatment facilities that conflict with regional plans. OKI works with local governments to determine who provides sewer service and the areas in which it will be provided, so that duplication of effort is avoided.
Table of Contents
Chapter 1 – Introduction and Overview
Chapter 2 – Water Resources in Southwest Ohio
Chapter 3 – Current and Projected Development
Chapter 4 – Management on Site Systems
Chapter 5 – Management of Nonpoint Sources of Pollution
Chapter 6 – Watershed Planning in Southwest Ohio
Chapter 7 – Wastewater Facilities Planning
Chapter 8 – Ongoing Areawide Water Quality Management Planning
Appendix A – Watershed and Large River Assessment
Appendix B – Stream database guide | Stream database
Glossary | Download GIS Shapefiles
Appendix B – Stream Database
Appendix C – Impervious Surface Analysis
Special Programs and Technical Support
OKI coordinates and manages a number of water quality-related initiatives, studies and committees. This is primarily work is done under our 208 funding. When our work involves a Kentucky or Indiana community, we must use a local water fund, since 208 only applies to those areas in Ohio.
Through collaboration with local governments and agencies in the region, OKI has assisted in securing grants, developing studies and plans, and providing technical assistance.
Sharon Creek – Mill Creek Nonpoint Source Implementation Strategic Plan
Congress Run – Mill Creek Nonpoint Source Implementation Strategic Plan
Great Miami Runoff Reduction Project
St. Clair Township Comprehensive Plan
Great Miami Drinking Water Protection Project
Mill Creek Headwaters Project
Stream Restoration Projects
Taylor Creek Watershed Study
West Fork Mill Creek Corridor Improvement Plan
Relative Densities of Tree Canopy in Butler, Clermont, Hamilton and Warren Counties, Ohio