Passage Data · Check a report · Use it from your AI

Cornerstone Chapel Real Estate

Sewerage Systems, Middleburg, Virginia. NPDES permit VA0027197, in force until Dec 31, 2029. Last 12 months: over a limit 6 times (last May 2026), 10 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: form M1 monthly (18 values), form Q1 quarterly (1 value)
Last report on file
August 2026
Oct 2024 – Sep 2025
6 values over a limit, 0 required values missing, 0 of 17 reports late

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

Period endingParameterReportedLimitOver by
December 2025BOD, 5-day, 20 deg. C, monthly average31≤ 30 mg/L3%
December 2025BOD, 5-day, 20 deg. C, weekly average50≤ 45 mg/L11%
February 2026Nitrogen, ammonia total [as N], monthly average63.3≤ 1.9 mg/L3232%
February 2026Nitrogen, ammonia total [as N], weekly average63.3≤ 1.9 mg/L3232%
April 2026Oxygen, dissolved [DO], minimum4.1≥ 5 mg/L18%
May 2026Oxygen, dissolved [DO], minimum3.8≥ 5 mg/L24%

Limits in force (19)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 1.7 kg/dall year
BOD, 5-day, 20 deg. Cweekly average≤ 2.6 kg/dall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 1.7 kg/dall year
Solids, total suspendedweekly average≤ 2.6 kg/dall year
Nitrogen, ammonia total [as N]monthly average≤ 1.9 mg/Lall year
Nitrogen, ammonia total [as N]weekly average≤ 1.9 mg/Lall year
Flow, in conduit or thru treatment plantmonthly average≤ .015 MGD (alert, not enforceable)all year
Flow, in conduit or thru treatment plantmaximumreport only (MGD) (alert, not enforceable)all year
Chlorine, total residualmonthly average≤ .008 mg/Lall year
Chlorine, total residualweekly average≤ .01 mg/Lall year
Chlorine, total residualminimum≥ .6 mg/Lall year
E. coligeometric mean≤ 126 #/100mLall 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

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/VA0027197 · MCP: https://passage-data.com/mcp