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Chilhowie Town

Sewage treatment plant, Chilhowie, Virginia. NPDES permit VA0026379 expired May 3, 2026; its limits still apply. Last 12 months: over a limit once (last November 2025). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: form M1 monthly (16 values)
Last report on file
August 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 endingParameterReportedLimit
November 2025E. coli, geometric mean> 9≤ 126 #/100mL

Limits in force (16)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 6 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≤ 110 kg/dall year
BOD, 5-day, 20 deg. Cweekly average≤ 170 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≤ 110 kg/dall year
Solids, total suspendedweekly average≤ 170 kg/dall year
Nitrogen, ammonia total [as N]monthly average≤ 11 mg/Lall year
Nitrogen, ammonia total [as N]weekly average≤ 16 mg/Lall year
Flow, in conduit or thru treatment plantmonthly average≤ .999 MGD (alert, not enforceable)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year
E. coligeometric mean≤ 126 #/100mLall year

How strict are these limits?

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

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/VA0026379 · MCP: https://passage-data.com/mcp