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Norfolk Southern Railway Company

Switching And Terminal Services, Andover, Virginia. NPDES permit VA0022012, in force until Jun 30, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 10 days after each period: form Q1 quarterly (7 values), form A1 yearly
Renewal application due: Jan 1, 2027 · 180 days before expiry; your permit may set another date
Last report on file: June 2026
Oct 2024 – Sep 2025: 0 values over a limit, 0 required values missing, 0 of 5 reports late

Limits in force (9)

Parameter	Statistic	Limit	Months
pH	minimum	≥ 6 SU	all year
pH	maximum	≤ 9 SU	all year
Solids, total suspended	monthly average	≤ 30 mg/L	all year
Solids, total suspended	daily maximum	≤ 60 mg/L	all year
Oil & Grease	daily maximum	≤ 15 mg/L	all year
Petrol hydrocarbons, total recoverable	daily maximum	report only (mg/L)	all year
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year
Toxicity, final conc toxicity units	maximum	≤ 1 tox acute	all year

How strict are these limits?

Solids, total suspended, daily maximum 60 mg/L — stricter than 78% of 245 other minor industrial and other permits in Virginia; 12% have the same limit
Solids, total suspended, monthly average 30 mg/L — stricter than 42% of 450 other minor industrial and other permits in Virginia; 40% have the same limit
Toxicity, final conc toxicity units, maximum 1 tox acute — stricter than 20% of 20 other minor industrial and other permits nationwide; 80% have the same limit

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

Same industry: the 4 Railroad Transportation permits in Virginia.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/VA0022012 · MCP: https://passage-data.com/mcp