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Hanover County

Sewage treatment plant, major discharger, Hanover, Virginia. NPDES permit VA0029521, in force until Jan 31, 2031. Last 12 months: over a limit once (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: form M1 monthly (20 values), form A1 yearly, form S1 twice a year
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
August 2026Oxygen, dissolved [DO], daily minimum6.4≥ 6.5 mg/L2%

Limits in force (27)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year
Oxygen, dissolved [DO]daily minimum≥ 6.5 mg/Lall year
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 10 mg/Lall year
Solids, total suspendedweekly average≤ 15 mg/Lall year
Solids, total suspendedmonthly average≤ 83 lb/dall year
Solids, total suspendedweekly average≤ 120 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]monthly average≤ 3 mg/Lall year
Nitrogen, Kjeldahl, total [as N]weekly average≤ 4.5 mg/Lall year
Nitrogen, Kjeldahl, total [as N]monthly average≤ 25 lb/dall year
Nitrogen, Kjeldahl, total [as N]weekly average≤ 38 lb/dall year
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year
Flow, in conduit or thru treatment plantmonthly average≤ 1 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
Nitrogen, Total As Nannual average≤ 4 mg/Lall year
Phosphorus, Total As Pannual average≤ .3 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 7 mg/Lall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 60 lb/dall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 83 lb/dall year
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year
BOD, carb-5 day, 20 deg C, percent removalmonthly 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.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/VA0029521 · MCP: https://passage-data.com/mcp