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Kilmarnock Town

Sewage treatment plant, Kilmarnock, Virginia. NPDES permit VA0020788 expired Oct 31, 2026. Last 12 months: over a limit 3 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: form M1 monthly (27 values), form A1 yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
11 values over a limit, 0 required values missing, 1 of 13 reports late

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

Period endingParameterReportedLimitOver by
October 2025Hardness, total [as CaCO3], minimum109≥ 125 mg/L13%
July 2026Hardness, total [as CaCO3], minimum117≥ 125 mg/L6%
August 2026Hardness, total [as CaCO3], minimum120≥ 125 mg/L4%

Limits in force (34)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 6.5 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 16 mg/Lall year
Solids, total suspendedweekly average≤ 24 mg/Lall year
Solids, total suspendedmonthly average≤ 30 kg/dall year
Solids, total suspendedweekly average≤ 45 kg/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedweekly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ .54 mg/Lall year
Nitrogen, ammonia total [as N]weekly average≤ .72 mg/Lall 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≤ 5700 g/dall year
Nitrogen, Kjeldahl, total [as N]weekly average≤ 8500 g/dall year
Hardness, total [as CaCO3]minimum≥ 125 mg/Lall year
Zinc, total recoverablemonthly average≤ 140 ug/Lall year
Zinc, total recoverableweekly average≤ 140 ug/Lall year
Copper, total recoverablemonthly average≤ 17 ug/Lall year
Copper, total recoverableweekly average≤ 17 ug/Lall year
Flow, in conduit or thru treatment plantmonthly average≤ .5 MGD (alert, not enforceable)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year
E. colimonthly geometric mean≤ 126 #/100mLall year
Phosphorus, Total As Pannual average≤ .3 mg/Lall year
Enterococcimonthly geometric mean≤ 35 #/100mLall year
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 16 mg/Lall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 24 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 30 kg/dall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 45 kg/dall year
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]weekly 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/VA0020788 · MCP: https://passage-data.com/mcp