{"state":"OH","as_of":"2026-10-15","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-15","page":"/dmr/p/OH","listed":"individual NPDES permits with limits in EPA's file; a general permit's coverages are not listed"},"filter":{"industry":null,"sic":"40","matched_on":"EPA's primary SIC code and its description","over_limit":null,"parameter":null,"renewal":null},"of":3140,"without_industry":1,"matched":8,"offset":0,"returned":8,"screen":{"of":8,"window":["2025-10-01","2026-09-30"],"with_record":8,"without_record":0,"over_limit":3,"missing_values":2,"parameters_over":[{"parameter":"Iron, total [as Fe]","permits":1},{"parameter":"Nitrogen, ammonia total [as N]","permits":1},{"parameter":"pH","permits":1},{"parameter":"Solids, total suspended","permits":1}],"renewal":{"permit_expired":1,"application_overdue":0,"application_due_within_18_months":2},"says":"Of the 8 permits in EPA's SIC 40 in OH, 3 went over a limit between 2025-10-01 and 2026-09-30 (Iron, total [as Fe]: 1; Nitrogen, ammonia total [as N]: 1; pH: 1). 1 is past the expiry date EPA's file holds; 2 have a renewal application overdue or due within 18 months. EPA's file of 2026-10-15.","narrow":{"over_limit":"https://passage-data.com/api/v1/permits?state=OH&sic=40&over_limit=true","parameter":{"Iron, total [as Fe]":"https://passage-data.com/api/v1/permits?state=OH&sic=40&parameter=Iron%2C+total+%5Bas+Fe%5D","Nitrogen, ammonia total [as N]":"https://passage-data.com/api/v1/permits?state=OH&sic=40&parameter=Nitrogen%2C+ammonia+total+%5Bas+N%5D","pH":"https://passage-data.com/api/v1/permits?state=OH&sic=40&parameter=pH","Solids, total suspended":"https://passage-data.com/api/v1/permits?state=OH&sic=40&parameter=Solids%2C+total+suspended"},"renewal_expired":"https://passage-data.com/api/v1/permits?state=OH&sic=40&renewal=expired","renewal_due":"https://passage-data.com/api/v1/permits?state=OH&sic=40&renewal=due"}},"permits":[{"permit":"OH0001503","name":"Norfolk Southern Railway Co","major":false,"sic":"4011","industry":"Railroads, Line-Haul Operating","record":{"over":2,"over_by":[["Nitrogen, ammonia total [as N]",2]],"missing":4},"expires":"2027-04-30","renewal":{"status":"application_due_within_18_months","application_due":"2026-11-01"},"page":"https://passage-data.com/dmr/p/OH0001503","json":"https://passage-data.com/api/v1/permits/OH0001503"},{"permit":"OH0078514","name":"Norfolk Southern Railway Co","major":false,"sic":"4011","industry":"Railroads, Line-Haul Operating","record":{"over":0,"over_by":[],"missing":0},"expires":"2027-11-30","renewal":{"status":"application_due_within_18_months","application_due":"2027-06-03"},"page":"https://passage-data.com/dmr/p/OH0078514","json":"https://passage-data.com/api/v1/permits/OH0078514"},{"permit":"OH0064122","name":"Norfolk Southern Railway Co. - Ashtabula Coal Dock","major":false,"sic":"4011","industry":"Railroads, Line-Haul Operating","record":{"over":0,"over_by":[],"missing":0},"expires":"2030-07-31","renewal":null,"page":"https://passage-data.com/dmr/p/OH0064122","json":"https://passage-data.com/api/v1/permits/OH0064122"},{"permit":"OH0005266","name":"Norfolk Southern Railway Company - Portsmouth Yard","major":false,"sic":"4011","industry":"Railroads, Line-Haul Operating","record":{"over":0,"over_by":[],"missing":0},"expires":"2030-06-30","renewal":null,"page":"https://passage-data.com/dmr/p/OH0005266","json":"https://passage-data.com/api/v1/permits/OH0005266"},{"permit":"OH0075868","name":"Norfolk Southern Railway- Wheelersburg Terminal","major":false,"sic":"4011","industry":"Railroads, Line-Haul Operating","record":{"over":2,"over_by":[["Iron, total [as Fe]",2]],"missing":0},"expires":"2029-08-31","renewal":null,"page":"https://passage-data.com/dmr/p/OH0075868","json":"https://passage-data.com/api/v1/permits/OH0075868"},{"permit":"OH0146684","name":"Norfolk Southern Sandusky Coal Dock","major":false,"sic":"4011","industry":"Railroads, Line-Haul Operating","record":{"over":0,"over_by":[],"missing":0},"expires":"2029-10-31","renewal":null,"page":"https://passage-data.com/dmr/p/OH0146684","json":"https://passage-data.com/api/v1/permits/OH0146684"},{"permit":"OH0128040","name":"Ohio Central Railroad, Inc.- Morgan Run Shop","major":false,"sic":"4011","industry":"Railroads, Line-Haul Operating","record":{"over":0,"over_by":[],"missing":0},"expires":"2030-02-28","renewal":null,"page":"https://passage-data.com/dmr/p/OH0128040","json":"https://passage-data.com/api/v1/permits/OH0128040"},{"permit":"OH0005240","name":"Wheeling & Lake Erie Railway Co","major":false,"sic":"4011","industry":"Railroads, Line-Haul Operating","record":{"over":3,"over_by":[["Solids, total suspended",2],["pH",1]],"missing":44},"expires":"2026-09-30","renewal":{"status":"permit_expired","application_due":"2026-04-03"},"page":"https://passage-data.com/dmr/p/OH0005240","json":"https://passage-data.com/api/v1/permits/OH0005240"}]}