MS4 Program - Rapidly Developing Watersheds
The following table lists the watersheds with streams identified as being particularly at risk due to development and associated land use impacts on water quality.
| Watershed | Drainage Area (mi2) | Location/Center Landmark |
| Northeast Ohio (Cuyahoga, Lorain, Medina and Summit Counties | ||
| West Branch Rocky River | 118 | South of Cuyahoga / Medina County Line |
| Yellow Creek | 31 | Entire Watershed / Ghent |
| French Creek | 39 | Entire Watershed / North Ridgeville |
| Southwest Ohio (Clermont, Montgomery and Warren Counties) | ||
| East Fork Little Miami River | 157 | Drainage Between Dam and the Mouth |
| Wolf Creek | 70 | Entire Watershed / Trotwood |
| O’Bannon Creek | 59 | Entire Watershed / Goshen |
| Central Ohio (Delaware, Fairfield, Franklin and Licking Counties) | ||
| Blacklick Creek | 63 | Entire Watershed / Reynoldsburg |
| South Fork Licking River | 60 | Entire Watershed / Pataskala |
| Olentangy River | 66 | Drainage Between City of Delaware and Delaware / Franklin County Line |
| Rocky Fork | 30 | Entire Watershed / New Albany |
| Hellbranch Run | 38 | Entire Watershed / Prairie Township |
| Sycamore Creek | 24 | Entire Watershed / Pickerington |
| Totals 12 Watersheds | 755 mi2 |
|
Attributes considered in selection of the above watersheds are:
- A significant portion of the stream still in attainment or partial attainment of aquatic life use designation;
- Evidence of increasing stress on water quality, habitat and aquatic life caused by land surface disturbances (construction activity and impervious surfaces); and
- High rates of forecasted population growth within a significant portion of the watershed and the high probability of high density development occurring within the next several years.
Click on the watershed name on the list below for a [PDF] map of the watershed.
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