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Nick Whitehead

Sewerage Systems, Cassville, Missouri. NPDES permit MO0133566, in force until May 31, 2030. Last 12 months: over a limit 5 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form Q quarterly (18 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 3 reports late

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

Period endingParameterReportedLimitOver by
December 2025Aluminum, total recoverable, monthly average375≤ 374 ug/L0%
December 2025Phosphorus, total [as P], monthly average1.09≤ .5 mg/L118%
June 2026Aluminum, total recoverable, daily maximum1277≤ 750 ug/L70%
June 2026Aluminum, total recoverable, monthly average1277≤ 374 ug/L241%
June 2026Phosphorus, total [as P], monthly average3≤ .5 mg/L500%

Limits in force (24)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cweekly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 20 mg/Lall year
pHminimum≥ 6.5 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedweekly average≤ 30 mg/Lall year
Solids, total suspendedmonthly average≤ 20 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LJul–Sep
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LJan–Mar
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LApr–Jun
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LOct–Dec
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LJul–Sep
Nitrogen, ammonia total [as N]monthly average≤ 3.1 mg/LJan–Mar
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/LApr–Jun
Nitrogen, ammonia total [as N]monthly average≤ 2.9 mg/LOct–Dec
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly average≤ .5 mg/Lall year
Iron, total recoverabledaily maximumreport only (ug/L)all year
Iron, total recoverablemonthly averagereport only (ug/L)all year
Aluminum, total recoverabledaily maximum≤ 750 ug/Lall year
Aluminum, total recoverablemonthly average≤ 374 ug/Lall 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. colidaily maximum≤ 630 #/100mLApr–Dec
E. coli30-day geometric mean≤ 126 #/100mLApr–Dec

How strict are these limits?

Cited limits by parameter: Missouri'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/MO0133566 · MCP: https://passage-data.com/mcp