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Norfolk Southern Railway Co

Railroads, Line-Haul Operating, Harrisburg, Pennsylvania. NPDES permit PA0246620, in force until Jan 31, 2031. Last 12 months: over a limit 4 times (last March 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form Q quarterly, outfall 001 form S twice a year, outfall 002 form Q quarterly, outfall 002 form S twice a year
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 12 reports late

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

Period endingOutfallParameterReportedLimitOver by
March 2026001Solids, total suspended, daily maximum71 mg/L≤ 60 mg/L18%
March 2026001Solids, total suspended, quarterly average71 mg/L≤ 30 mg/L137%
March 2026002Solids, total suspended, daily maximum63 mg/L≤ 60 mg/L5%
March 2026002Solids, total suspended, quarterly average63 mg/L≤ 30 mg/L110%

Limits in force (24)

ParameterStatisticLimitMonthsOutfall
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year001
pHinstantaneous minimum≥ 6 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
Solids, total suspendedquarterly average≤ 30 mg/Lall year001
Solids, total suspendeddaily maximum≤ 60 mg/Lall year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Iron, total [as Fe]daily maximumreport only (mg/L)all year001
Flow, in conduit or thru treatment plantquarterly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all year001
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year002
pHinstantaneous minimum≥ 6 SUall year002
pHinstantaneous maximum≤ 9 SUall year002
Solids, total suspendedquarterly average≤ 30 mg/Lall year002
Solids, total suspendeddaily maximum≤ 60 mg/Lall year002
Oil & Greasedaily maximum≤ 15 mg/Lall year002
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year002
Phosphorus, total [as P]daily maximumreport only (mg/L)all year002
Iron, total [as Fe]daily maximumreport only (mg/L)all year002
Flow, in conduit or thru treatment plantquarterly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all year002

How strict are these limits?

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

Same industry: the 7 Railroad Transportation permits in Pennsylvania.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/PA0246620 · MCP: https://passage-data.com/mcp