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Hamilton Town

Sewage treatment plant, Hamilton, Virginia. NPDES permit VA0020974, in force until Aug 31, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: form M1 monthly (22 values), form Q1 quarterly (1 value), form S1 twice a year
Renewal application due
Mar 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 0 of 18 reports late

Limits in force (27)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 6 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 20 mg/Lall year
BOD, 5-day, 20 deg. Cweekly maximum≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 12 kg/dall year
BOD, 5-day, 20 deg. Cweekly maximum≤ 18 kg/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 20 mg/Lall year
Solids, total suspendedweekly maximum≤ 30 mg/Lall year
Solids, total suspendedmonthly average≤ 12 kg/dall year
Solids, total suspendedweekly maximum≤ 18 kg/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Nitrogen, total [as N]annual averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 1.3 mg/Lall year
Nitrogen, ammonia total [as N]weekly maximum≤ 2.4 mg/Lall year
Nitrogen, Kjeldahl, total [as N]annual averagereport only (mg/L)all year
Nitrite + Nitrate total [as N]annual averagereport only (mg/L)all year
Phosphorus, total [as P]annual averagereport only (mg/L)all year
Hardness, total [as CaCO3]quarterly averagereport only (mg/L)all year
Copper, total recoverableaverage≤ 17 ug/Lall year
Copper, total recoverablemaximum≤ 17 ug/Lall year
Flow, in conduit or thru treatment plantmonthly average≤ .16 MGD (alert, not enforceable)all year
Flow, in conduit or thru treatment plantmaximumreport 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/VA0020974 · MCP: https://passage-data.com/mcp