OHIO TURNPIKE CASTALIA MAINTENANCE BUILDING, Castalia, OH: NPDES OH0116629 discharge permit, effluent exceedances, inspections, penalties

OHIO TURNPIKE CASTALIA MAINTENANCE BUILDING, Castalia, Ohio: Individual permit OH0116629, held by Ohio Turnpike & Infrastructure Comm; Publicly owned treatment works; Administratively continued; issued January 15, 2021, term to February 28, 2026; discharges to A Turnpike Drainage Ditch.

3 of the 11 pollutants listed for NPDES OH0116629 have no violation or effluent exceedance.

• Nitrogen, ammonia total [as N]: 8 limits, 19 violations of any kind, 13 effluent exceedances, latest March 31, 2026, largest 42,368% over the limit.
• Solids, total suspended: 8 limits, 20 violations of any kind, 10 effluent exceedances, latest June 30, 2026, largest 197% over the limit.
• E. coli, MTEC-MF: 4 limits, 4 violations of any kind, 4 effluent exceedances, latest June 30, 2021, largest 66% over the limit.
• BOD, carbonaceous [5 day, 20 C]: 8 limits, 8 violations of any kind, 2 effluent exceedances, latest August 31, 2025, largest 67% over the limit.
• pH: 4 limits, 2 violations of any kind, 2 effluent exceedances, latest June 30, 2021.
• Chlorine, total residual: 2 limits, 2 violations of any kind, 2 effluent exceedances, latest June 30, 2023, largest 453% over the limit.
• Coliform, fecal MF, MFC broth, 44.5 C: 0 limits, 1 violation of any kind, 1 effluent exceedance, latest June 30, 2009, largest 20% over the limit.
• Flow rate: 4 limits, 4 violations of any kind.
• Turbidity [severity]: 4 limits.
• Oxygen, dissolved [DO]: 2 limits.
• Sludge waste from secondary clarifiers: 2 limits.

• January 13, 2026: Evaluation (S).
• November 4, 2025: Permit Violations - Failure to Submit Timely Permit Renewal Application (ST6).

Ohio holds 687 Publicly owned treatment works coverages of this permit type in EPA’s file; 534 were issued before OH0116629. Ohio Turnpike & Infrastructure Comm holds 2 permits in Ohio.

Other permits held by Ohio Turnpike & Infrastructure Comm

• ERIE ISLANDS WWTP, Clyde: OH0058963, issued 2022-10-20

Coverages issued nearest OH0116629

• 2021-01-13: BEECH MEADOWS WWTP, Cambridge: OH0050709, held by Guernsey Co Brd of Comm
• 2021-01-13: INFIRMARY CREEK WWTP, Chardon: OH0089788, held by Geauga Co Comm Dept of Water Resources
• 2021-01-13: WEST COMMUNITY CENTER, East Rochester: OH0126381, held by Glenn Whiteleather LLC Properties
• 2021-01-14: VILLAGE OF GREENWICH WASTEWATER TREATMENT WORKS, Greenwich: OH0020486, held by Greenwich, Village of
• 2021-01-14: CITY OF ST CLAIRSVILLE WEST WWTP, St Clairsville: OH0091316, held by City of St Clairsville
• 2021-02-05: NEW LONDON WWTP, New London: OH0020737, held by Village of New London
• 2021-02-11: FOX SHANNON WASTEWATER TREATMENT PLANT, St Clairsville: OH0107956, held by Belmont Co Comm
• 2021-02-19: FIN FEATHER AND FUR OUTFITTERS MINI-MALL, Ashland: OH0126748, held by Fin Feather and Fur
• 2021-03-11: MILAN WWTP, Milan: OH0022641, held by MIlan, Village of
• 2021-03-11: VILLAGE OF HOPEDALE WWTP, Hopedale: OH0041131, held by Hopedale, Village of

OHIO TURNPIKE CASTALIA MAINTENANCE BUILDING among its neighbors

5 discharge permits are in the Mills Creek subwatershed (HUC 041000110103); OH0116629 is one. Its county: 32, 0 major; OH0116629 is minor permit.

Other permits in the Mills Creek subwatershed (HUC 041000110103)

• 2509 HAYES LLC, Sandusky: OH0000264, minor, term to 2015-05-31
• BELLEVUE WTP, Bellevue: OH0057827, minor, term to 2023-12-31
• CITY OF BELLEVUE WATER POLLUTION CONTROL FACILITY, Bellevue: OH0020672, major, term to 2028-04-30
• VENTRA SANDUSKY LLC, Sandusky: OH0001201, minor, term to 2028-07-31