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Middleburg Town

Sewage treatment plant, Middleburg, Virginia. NPDES permit VA0024775, in force until Jan 31, 2028. Last 12 months: over a limit 2 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: form M1 monthly (23 values), form A1 yearly, form A2 yearly, form S1 twice a year
Renewal application due
Aug 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 16 reports late

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

Period endingParameterReportedLimitOver by
December 2025Nitrogen, Kjeldahl, total [as N], weekly average13.57≤ 9 mg/L51%
August 2026Nitrogen, ammonia total [as N], weekly average2.8≤ 2.4 mg/L17%

Limits in force (31)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 6.8 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≤ 9 kg/dall year
Solids, total suspendedweekly average≤ 14 kg/dall year
Solids, total suspendedaveragereport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 1.8 mg/LJun–Nov
Nitrogen, ammonia total [as N]weekly average≤ 2.4 mg/LJun–Nov
Nitrogen, Kjeldahl, total [as N]monthly average≤ 6 mg/Lall year
Nitrogen, Kjeldahl, total [as N]weekly average≤ 9 mg/Lall year
Nitrogen, Kjeldahl, total [as N]monthly average≤ 13 lb/dall year
Nitrogen, Kjeldahl, total [as N]weekly average≤ 19 lb/dall year
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year
Copper, dissolved [as Cu]monthly averagereport only (ug/L)all year
Flow, in conduit or thru treatment plantmonthly average≤ .25 MGD (alert, not enforceable)all year
Flow, in conduit or thru treatment plantmaximumreport only (MGD) (alert, not enforceable)all year
E. coligeometric mean≤ 126 #/100mLall year
Nitrogen, Total As Nannual average≤ 8 mg/Lall year
Phosphorus, Total As Pannual average≤ 1 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 15 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 9 kg/dall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 14 kg/dall year
BOD, carbonaceous [5 day, 20 C]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.

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/VA0024775 · MCP: https://passage-data.com/mcp