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City of Hurley

Sewage treatment plant, Hurley, Missouri. NPDES permit MO0125601 expired Sep 30, 2025; its limits still apply. Last 12 months: over a limit 4 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form Q quarterly (21 values), outfall INF form IQ quarterly (2 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 8 reports late

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

Period endingParameterReportedLimitOver by
December 2025Phosphorus, total [as P], monthly average7.2≤ .5 mg/L1340%
March 2026Phosphorus, total [as P], monthly average1.66≤ .5 mg/L232%
June 2026E. coli, monthly average340≤ 206 #/100mL65%
June 2026Phosphorus, total [as P], monthly average3.78≤ .5 mg/L656%

Limits in force (23)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cweekly average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 20 mg/Lall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedweekly average≤ 30 mg/Lall year001
Solids, total suspendedmonthly average≤ 20 mg/Lall year001
Oil and grease [soxhlet extr.] tot.daily maximum≤ 15 mg/Lall year001
Oil and grease [soxhlet extr.] tot.monthly average≤ 10 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximum≤ 9.8 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 9.8 mg/Lall year001
Phosphorus, total [as P]monthly average≤ .5 mg/Lall year001
Iron, total recoverabledaily maximumreport only (ug/L)all year001
Iron, total recoverablemonthly averagereport only (ug/L)all year001
Aluminum, total recoverabledaily maximum≤ 964.4 ug/Lall year001
Aluminum, total recoverablemonthly average≤ 635.8 ug/Lall year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
E. coli7-day geometric mean≤ 1030 #/100mLApr–Dec001
E. colimonthly average≤ 206 #/100mLApr–Dec001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all yearINF
Solids, total suspendedmonthly averagereport only (mg/L)all yearINF

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/MO0125601 · MCP: https://passage-data.com/mcp