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 graphic or list below for a [PDF] map of the watershed.

 image of map

Blacklick Creek

Hellbranch Run

Rocky Fork

West Branch Rocky River

East Fork Little Miami River

O'Bannon Creek

South Fork Licking River

Wolf Creek

French Creek

Olentangy River

Sycamore Creek

Yellow Creek

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