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Potomac Conference Corp. of Seventh-Day Adventists

Sewerage Systems, Montebello, Virginia. NPDES permit VA0072991, in force until Nov 30, 2026. Last 12 months: over a limit 2 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: form M1 monthly (14 values), form A1 yearly
Renewal application due
Jun 3, 2026 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 13 reports late

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

Period endingParameterReportedLimitOver by
May 2026BOD, 5-day, 20 deg. C, monthly average30.7≤ 30 mg/L2%
June 2026E. coli, geometric mean131≤ 126 #/100mL4%

Limits in force (22)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 7 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ .57 kg/dall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ .85 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≤ 30 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ .57 kg/dall year
Solids, total suspendedmaximum weekly average≤ .85 kg/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Nitrogen, total [as N]maximumreport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]maximumreport only (mg/L)all year
Nitrite + Nitrate total [as N]maximumreport only (mg/L)all year
Phosphorus, total [as P]maximumreport only (mg/L)all year
Flow, in conduit or thru treatment plantmonthly average≤ .005 MGD (alert, not enforceable)all year
Flow, in conduit or thru treatment plantdaily maximumreport 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/VA0072991 · MCP: https://passage-data.com/mcp