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Western Virginia Water Authority

Sewerage Systems, Wirtz, Virginia. NPDES permit VA0091928, in force until Nov 30, 2029. Last 12 months: over a limit 3 times (last March 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: form M1 monthly (16 values), form A1 yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 0 of 12 reports late

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

Period endingParameterReportedLimitOver by
March 2026BOD, 5-day, 20 deg. C, monthly average20≤ 6 mg/L233%
March 2026BOD, 5-day, 20 deg. C, maximum weekly average20≤ 9 mg/L122%
March 2026Nitrogen, ammonia total [as N], maximum weekly average.64≤ .4 mg/L60%

Limits in force (21)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 7 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 6 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 9 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ .44 kg/dall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ .66 kg/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 2.2 kg/dall year
Solids, total suspendedmaximum weekly average≤ 3.3 kg/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ .4 mg/Lall year
Nitrogen, ammonia total [as N]maximum weekly average≤ .4 mg/Lall year
Phosphorus, total [as P]maximumreport only (mg/L)all year
Flow, in conduit or thru treatment plantmonthly average≤ .0195 MGD (alert, not enforceable)all year
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD) (alert, not enforceable)all year
BOD, percent removal [total]monthly average minimum≥ 85 %all year
E. coligeometric mean≤ 126 #/100mLall year
Solids, suspended percent removalmonthly average minimum≥ 85 %all 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/VA0091928 · MCP: https://passage-data.com/mcp