How does the nearest sewage plant perform?

Ohio has no statewide map of who is on a sewer, so this layer shows the treatment plants themselves: every publicly owned treatment works of at least 100,000 gallons a day with a Clean Water Act discharge permit in EPA's ECHO database (about 500; the smallest package plants serving a school or a rest area are left out), with its design flow, whether it is a major (over a million gallons a day) plant, whether its system has combined sewer overflows that dump raw sewage in heavy rain, and its compliance record: significant noncompliance status and the number of the last twelve quarters with any violation. The map colors each ZIP by the compliance history of its nearest plant, which is usually the one it drains to. The card also counts combined sewer overflow outfalls within 3 miles from EPA's ECHO inventory: 89 older Ohio sewer systems still have pipes that carry sewage and storm water together and spill the mix into a river when it rains. The card also counts the ZIP's other Clean Water Act permit holders, the factories, water plants and package plants that discharge to streams, with their compliance record. Ohio EPA's own layers add the farm fields permitted for sewage sludge and whether the ZIP sits in a permitted storm sewer area. Ohio EPA's revolving-fund loan history for the ZIP and the nearest permitted sludge generator are added. The section 208 plan's facility planning areas say which agency is allowed to sewer the ZIP. A stormwater line says whether the ZIP sits inside an Ohio EPA regulated MS4 area, where storm sewers carry a permit.

1,229 of 1,233 ZIPs have data; median 7 quarters.

Legend

Map of Ohio by Sewage plants

Source

EPA ECHO Clean Water Act facilities, Ohio NPDES permits with a publicly owned treatment works component, plants of 0.1 MGD or more or designated major: nearest plant, design flow, significant-noncompliance status, quarters in noncompliance, combined-sewer overflow flag; EPA ECHO combined sewer overflow inventory (1,426 Ohio outfalls) for the overflows within 3 miles; ECHO Clean Water Act permit holders other than sewage plants inside the ZIP (NPDES individual and general permits, pretreatment permits counted separately); Ohio EPA biosolids application fields (SurfaceWater/Biosolids) and MS4 regulated stormwater areas 2020 to 2030; Ohio EPA state revolving fund loans (DEFA project funding layer, awards through September 2026) and permitted biosolids generators; Ohio EPA section 208 facility planning areas and management agency prescriptions (Areawide_201_208); Ohio EPA SurfaceWater/MS4_RegulatedAreas layer 4 (2020-2030 municipal separate storm sewer areas), share of the ZIP inside; EPA Facility Finder state industrial stormwater permittees (Ohio, points inside the ZIP)

EPA ECHO · EPA CSO inventory · Ohio EPA GIS services · EPA Facility Finder

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