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City of Glasgow

Sewage treatment plant, Glasgow, Missouri. NPDES permit MO0034240 expired Apr 30, 2025; its limits still apply. Last 12 months: over a limit 10 times (last September 2026), 45 required values missing, 4 of 16 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form M monthly (15 values), form Q quarterly (4 values), form WA every 60 months
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 171 required values missing, 14 of 16 reports late

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

Period endingParameterReportedLimitOver by
January 2026BOD, 5-day, percent removal, monthly average minimum6.67≥ 85 %522%
January 2026Solids, suspended percent removal, monthly average minimum51.06≥ 85 %226%
February 2026Solids, total suspended, monthly average60≤ 30 mg/L100%
February 2026Solids, total suspended, weekly average60≤ 45 mg/L33%
March 2026BOD, 5-day, percent removal, monthly average minimum75≥ 85 %67%
March 2026Solids, total suspended, monthly average31≤ 30 mg/L3%
June 2026Solids, total suspended, monthly average32.2≤ 30 mg/L7%
July 2026BOD, 5-day, percent removal, monthly average minimum75≥ 85 %67%
September 2026BOD, 5-day, percent removal, monthly average minimum74≥ 85 %73%
September 2026Solids, suspended percent removal, monthly average minimum48.47≥ 85 %244%

Limits in force (21)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
pHminimum≥ 6 SUall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Oil and grease [soxhlet extr.] tot.daily maximum≤ 15 mg/Lall year
Oil and grease [soxhlet extr.] tot.monthly average≤ 10 mg/Lall year
Nitrogen, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
E. coli7-day geometric mean≤ 1030 #/100mLApr–Oct
E. coli30-day geometric mean≤ 206 #/100mLApr–Oct
Toxicity [acute], Ceriodaphnia dubiadaily maximumreport only (toxic)all year
Toxicity [acute], Pimephales promelas [Fathead Minnow]daily maximumreport only (toxic)all year
BOD, 5-day, 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: Missouri'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/MO0034240 · MCP: https://passage-data.com/mcp