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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
Attributes considered in selection of the above watersheds are:
Click on the watershed name on the graphic or list below for a [PDF] map of the watershed.
see the Storm Water Program Contacts page.
Back to MS4 Program page.
* Adobe Acrobat Reader is required to view the [PDF] publications. If you do not have Adobe Acrobat Reader, click here to download it for free.
Contact the Division of Surface WaterMailing Address: P.O. Box 1049, Columbus, OH 43216-1049Street Address: 50 West Town Street, Suite 700 Columbus, OH 43215Phone: (614) 644-2001 ~ Fax: 644-2745 ~ E-mailEmergency Response Hotline (800) 282-9378