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Hanover County

Sewage treatment plant, major discharger, Ashland, Virginia. NPDES permit VA0024899, in force until Feb 28, 2031. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: form O monthly (18 values), form Q2 quarterly, 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 12 reports late

Limits in force (25)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 6.5 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 230 kg/dall year
Solids, total suspendedweekly average≤ 340 kg/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]monthly average≤ 5 mg/Lall year
Nitrogen, Kjeldahl, total [as N]weekly average≤ 7.5 mg/Lall year
Nitrogen, Kjeldahl, total [as N]monthly average≤ 38 kg/dall year
Nitrogen, Kjeldahl, total [as N]weekly average≤ 57 kg/dall year
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year
Hardness, total [as CaCO3]weekly averagereport only (mg/L)all year
Flow, in conduit or thru treatment plantmonthly average≤ 2 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
BOD, carbonaceous [5 day, 20 C]monthly average≤ 20 mg/Lall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 30 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 150 kg/dall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 230 kg/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
TU Static Renewal 7-Day Chronic Pimphales promelasmaximumreport only (tox chronic)all year

New limits from Mar 1, 2028

ParameterNew limitNew or tighterMedian, last 12 months× new limit
TU Static Renewal 7-Day Chronic Pimphales promelas, maximum5.55 tox chronicnew——

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/VA0024899 · MCP: https://passage-data.com/mcp