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Norfolk Southern Railway Co

Railroads, Line-Haul Operating, Bellevue, Ohio. NPDES permit OH0001503, in force until Apr 30, 2027. Last 12 months: over a limit 2 times (last February 2026), 4 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (6 values), outfall 002 form A monthly (6 values), outfall 601 form A monthly (11 values)
Renewal application due
Nov 1, 2026 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
14 values over a limit, 0 required values missing, 0 of 37 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
February 2026Nitrogen, ammonia total [as N], daily maximum8.47≤ 3 mg/L182%
February 2026Nitrogen, ammonia total [as N], monthly average4.96≤ 2 mg/L148%

Limits in force (27)

ParameterStatisticLimitMonthsOutfall
pHdaily minimum≥ 6.5 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendeddaily maximum≤ 45 mg/Lall year001
Oil and grease [soxhlet extr.] tot.daily maximum≤ 10 mg/LMar, Jun, Aug, Dec001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
pHdaily minimum≥ 6.5 SUall year002
pHdaily maximum≤ 9 SUall year002
Solids, total suspendedmonthly average≤ 30 mg/Lall year002
Solids, total suspendeddaily maximum≤ 45 mg/Lall year002
Oil and grease [soxhlet extr.] tot.daily maximum≤ 10 mg/LMar, Jun, Aug, Dec002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Sludge waste from secondary clarifiersmonthly averagereport only (gal)Dec588
Sludge waste from secondary clarifiersdaily maximumreport only (gal)Dec588
Flow ratemonthly averagereport only (gal/d)all year601
Flow ratedaily maximumreport only (gal/d)all year601
Oxygen, dissolved [DO]daily minimum≥ 5 mg/Lall year601
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/Lall year601
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/Lall year601
Turbidity [severity]monthly averagereport only (severity)all year601
Turbidity [severity]daily maximumreport only (severity)all year601
E. coli, MTEC-MFmonthly geometric meanreport only (MPN/100mL)May–Oct601
E. coli, MTEC-MFdaily maximumreport only (MPN/100mL)May–Oct601
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year601
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 15 mg/Lall year601

How strict are these limits?

Cited limits by parameter: Ohio's rules and the federal ones.

Same industry: the 8 Railroad Transportation permits in Ohio.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OH0001503 · MCP: https://passage-data.com/mcp