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Washington County Public Schools

Sewage treatment plant, Abingdon, Virginia. NPDES permit VA0065315, in force until Jun 30, 2027. Last 12 months: over a limit 2 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: form M1 monthly (18 values), form A1 yearly
Renewal application due
Jan 1, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 13 reports late

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

Period endingParameterReportedLimitOver by
June 2026Solids, suspended percent removal, monthly average minimum68≥ 85 %113%
August 2026Chlorine, total residual, monthly average.05≤ .043 mg/L16%

Limits in force (24)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 5 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cweekly maximum≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 1.4 kg/dall year
BOD, 5-day, 20 deg. Cweekly average≤ 2 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 suspendedweekly maximum≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 1.4 kg/dall year
Solids, total suspendedweekly maximum≤ 2 kg/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 7.7 mg/LJun–Dec
Nitrogen, ammonia total [as N]monthly average≤ 20 mg/LJan–May
Nitrogen, ammonia total [as N]maximum≤ 7.7 mg/LJun–Dec
Nitrogen, ammonia total [as N]maximum≤ 20 mg/LJan–May
Flow, in conduit or thru treatment plantmonthly average≤ .012 MGD (alert, not enforceable)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year
Chlorine, total residualmonthly average≤ .043 mg/Lall year
Chlorine, total residualweekly maximum≤ .053 mg/Lall year
Chlorine, total residualinstantaneous minimum≥ .6 mg/Lall year
BOD, percent removal [total]monthly average minimum≥ 85 %all 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/VA0065315 · MCP: https://passage-data.com/mcp