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Martinsville City

Sewage treatment plant, major discharger, Ridgeway, Virginia. NPDES permit VA0025305, in force until Jan 31, 2029. Last 12 months: over a limit 22 times (last July 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: form M1 monthly (2 values), form Q1 quarterly (4 values), form U monthly (17 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 22 reports late

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

All 22 values over a limit
Period endingParameterReportedLimitOver by
December 2025Nitrogen, ammonia total [as N], weekly average21.2≤ 9.5 mg/L123%
January 2026BOD, 5-day, 20 deg. C, monthly average35.6≤ 22.5 mg/L58%
January 2026BOD, 5-day, 20 deg. C, maximum weekly average40.6≤ 33.8 mg/L20%
January 2026Solids, total suspended, monthly average58.12≤ 30 mg/L94%
January 2026Solids, total suspended, maximum weekly average70.9≤ 45 mg/L58%
February 2026BOD, 5-day, 20 deg. C, monthly average47.08≤ 22.5 mg/L109%
February 2026BOD, 5-day, 20 deg. C, maximum weekly average1339≤ 1022 kg/d31%
February 2026BOD, 5-day, 20 deg. C, maximum weekly average77.78≤ 33.8 mg/L130%
February 2026E. coli, monthly geometric mean332≤ 126 #/100mL163%
February 2026Solids, total suspended, monthly average47.9≤ 30 mg/L60%
February 2026Solids, total suspended, maximum weekly average72.6≤ 45 mg/L61%
March 2026BOD, 5-day, 20 deg. C, monthly average68.2≤ 22.5 mg/L203%
March 2026BOD, 5-day, 20 deg. C, monthly average865≤ 681 kg/d27%
March 2026BOD, 5-day, 20 deg. C, maximum weekly average1496≤ 1022 kg/d46%
March 2026BOD, 5-day, 20 deg. C, maximum weekly average91.6≤ 33.8 mg/L171%
March 2026BOD, percent removal [total], monthly average minimum45.7≥ 85 %262%
March 2026Solids, suspended percent removal, monthly average minimum84.475≥ 85 %4%
March 2026Solids, total suspended, monthly average1502≤ 908 kg/d65%
March 2026Solids, total suspended, monthly average90.6≤ 30 mg/L202%
March 2026Solids, total suspended, maximum weekly average113.8≤ 45 mg/L153%
March 2026Solids, total suspended, maximum weekly average2111≤ 1363 kg/d55%
July 2026BOD, 5-day, 20 deg. C, maximum weekly average39.2≤ 33.8 mg/L16%

Limits in force (23)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 6 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 22.5 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 33.8 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 681 kg/dall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 1022 kg/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 908 kg/dall year
Solids, total suspendedmaximum weekly average≤ 1363 kg/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 7.5 mg/LJul–Dec
Nitrogen, ammonia total [as N]weekly average≤ 9.5 mg/LJul–Dec
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD) (alert, not enforceable)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year
Chlorine, total residualmonthly average≤ 13 ug/Lall year
Chlorine, total residualmaximum weekly average≤ 14 ug/Lall year
Chlorine, total residualinstantaneous minimum≥ .6 mg/Lall year
BOD, percent removal [total]monthly average minimum≥ 85 %all year
E. colimonthly geometric 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.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/VA0025305 · MCP: https://passage-data.com/mcp