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Keswick Estate Utilities, Inc.

Sewerage Systems, Keswick, Virginia. NPDES permit VA0085979, 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: outfall 001 form M1 monthly (16 values), outfall 004 form M1 monthly (18 values), outfall 001 form A1 yearly, outfall 004 form A1 yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
4 values over a limit, 0 required values missing, 0 of 24 reports late

Limits in force (42)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 6.8 kg/dall year001
Solids, total suspendedmaximum weekly average≤ 10 kg/dall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly average≤ 1.1 mg/Lall year001
Nitrogen, ammonia total [as N]maximum weekly average≤ 1.7 mg/Lall year001
Flow, in conduit or thru treatment plantmonthly average≤ .06 MGD (alert, not enforceable)all year001
Flow, in conduit or thru treatment plantmaximumreport only (MGD) (alert, not enforceable)all year001
E. colimonthly geometric mean≤ 126 #/100mLall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 8 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 10 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 2 kg/dall year001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 2 kg/dall year001
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year001
BOD, carb-5 day, 20 deg C, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year004
pHminimum≥ 6 SUall year004
pHmaximum≤ 9 SUall year004
Solids, total suspendedmonthly average≤ 30 mg/Lall year004
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year004
Solids, total suspendedmonthly average≤ 6.8 kg/dall year004
Solids, total suspendedmaximum weekly average≤ 10 kg/dall year004
Solids, total suspendedmonthly averagereport only (mg/L)all year004
Nitrogen, ammonia total [as N]monthly average≤ 1.1 mg/Lall year004
Nitrogen, ammonia total [as N]maximum weekly average≤ 1.7 mg/Lall year004
Flow, in conduit or thru treatment plantmonthly average≤ .06 MGD (alert, not enforceable)all year004
Flow, in conduit or thru treatment plantmaximumreport only (MGD) (alert, not enforceable)all year004
Chlorine, total residualmonthly average≤ .008 mg/Lall year004
Chlorine, total residualmaximum weekly average≤ .0098 mg/Lall year004
E. colimonthly geometric mean≤ 23 #/100mLall year004
BOD, carbonaceous [5 day, 20 C]monthly average≤ 5 mg/Lall year004
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 8 mg/Lall year004
BOD, carbonaceous [5 day, 20 C]monthly average≤ 1 kg/dall year004
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 2 kg/dall year004
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year004
BOD, carb-5 day, 20 deg C, percent removalmonthly average minimum≥ 85 %all year004
Solids, suspended percent removalmonthly average minimum≥ 85 %all year004

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/VA0085979 · MCP: https://passage-data.com/mcp