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USDA Forest Service

Federal facility (Sewerage Systems), Marion, Virginia. NPDES permit VA0022993, in force until Mar 31, 2030. Last 12 months: over a limit 6 times (last August 2026), 2 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: form M1 monthly (18 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
4 values over a limit, 0 required values missing, 8 of 12 reports late

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

Period endingParameterReportedLimitOver by
February 2026Chlorine, total residual, monthly average1.37≤ .018 mg/L7511%
February 2026Chlorine, total residual, weekly average2.2≤ .022 mg/L9900%
April 2026Chlorine, total residual, monthly average1.535≤ .018 mg/L8428%
April 2026Chlorine, total residual, weekly average2.2≤ .022 mg/L9900%
August 2026Chlorine, total residual, monthly average1.5527≤ .018 mg/L8526%
August 2026Chlorine, total residual, weekly average2.2≤ .022 mg/L9900%

Limits in force (20)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 6.8 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 1.9 kg/dall year
BOD, 5-day, 20 deg. Cweekly average≤ 2.9 kg/dall year
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 1.9 kg/dall year
Solids, total suspendedweekly average≤ 2.9 kg/dall year
Nitrogen, ammonia total [as N]monthly average≤ 21.3 mg/LJan, Feb, Mar, Apr, May, Dec
Nitrogen, ammonia total [as N]monthly average≤ 7.3 mg/LJun–Nov
Nitrogen, ammonia total [as N]weekly average≤ 21.3 mg/LJan, Feb, Mar, Apr, May, Dec
Nitrogen, ammonia total [as N]weekly average≤ 7.3 mg/LJun–Nov
Flow, in conduit or thru treatment plantmonthly average≤ .017 MGD (alert, not enforceable)all year
Flow, in conduit or thru treatment plantmaximumreport only (MGD) (alert, not enforceable)all year
Chlorine, total residualmonthly average≤ .018 mg/Lall year
Chlorine, total residualweekly average≤ .022 mg/Lall year
Chlorine, total residualinstantaneous minimum≥ .6 mg/Lall year

How strict are these limits?

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/VA0022993 · MCP: https://passage-data.com/mcp