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

VDOC - Western Region

Sewerage Systems, Ridgeway, Virginia. NPDES permit VA0023558, in force until Aug 31, 2028. Last 12 months: over a limit 4 times (last June 2026), 2 required values missing, 1 of 13 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: form M1 monthly (18 values), form A1 yearly, form A2 yearly
Renewal application due
Mar 4, 2028 · 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 14 reports late

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

Period endingParameterReportedLimitOver by
October 2025BOD, 5-day, 20 deg. C, monthly average15≤ 11 mg/L36%
March 2026BOD, 5-day, 20 deg. C, monthly average22≤ 11 mg/L100%
March 2026BOD, 5-day, 20 deg. C, monthly maximum44≤ 17 mg/L159%
June 2026BOD, 5-day, 20 deg. C, monthly average15≤ 11 mg/L36%

Limits in force (24)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 6 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 11 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly maximum≤ 17 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 1100 g/dall year
BOD, 5-day, 20 deg. Cmonthly maximum≤ 1800 g/dall year
BOD, 5-day, 20 deg. Cminimumreport only (mg/L)all year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedmonthly maximum≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 3100 g/dall year
Solids, total suspendedmonthly maximum≤ 4700 g/dall year
Solids, total suspendedminimumreport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 1.6 mg/Lall year
Nitrogen, ammonia total [as N]monthly maximum≤ 1.6 mg/Lall year
Flow, in conduit or thru treatment plantmonthly average≤ .028 MGD (alert, not enforceable)all year
Flow, in conduit or thru treatment plantmaximumreport only (MGD) (alert, not enforceable)all year
Chlorine, total residualmonthly average≤ 7.9 ug/Lall year
Chlorine, total residualmonthly maximum≤ 9.5 ug/Lall year
Chlorine, total residualinstantaneous minimum≥ .6 mg/Lall year
BOD, percent removal [total]monthly average minimum≥ 85 %all year
E. coligeometric mean≤ 126 #/100mLall year
E. colisingle sample≤ 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

· 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/VA0023558 · MCP: https://passage-data.com/mcp