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Confluence Rivers Utility Operating

Sewerage Systems, Holts Summit, Missouri. NPDES permit MO0039012, in force until May 31, 2030. Last 12 months: over a limit 9 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form Q quarterly (16 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
6 values 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 2025E. coli, 30-day geometric mean2419.6≤ 206 #/100mL1075%
December 2025E. coli, daily maximum2419.6≤ 1030 #/100mL135%
December 2025Nitrogen, ammonia total [as N], daily maximum18.85≤ 7.3 mg/L158%
December 2025Nitrogen, ammonia total [as N], monthly average18.85≤ 2.2 mg/L757%
March 2026Nitrogen, ammonia total [as N], daily maximum20.9≤ 7.3 mg/L186%
March 2026Nitrogen, ammonia total [as N], monthly average20.9≤ 2.9 mg/L621%
June 2026Nitrogen, ammonia total [as N], daily maximum8.5≤ 4 mg/L113%
June 2026Nitrogen, ammonia total [as N], monthly average8.5≤ 1.4 mg/L507%
September 2026Nitrogen, ammonia total [as N], monthly average3.22≤ 1 mg/L222%

Limits in force (22)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimumreport only (mg/L)Apr–Dec
Oxygen, dissolved [DO]monthly average minimumreport only (mg/L)Apr–Dec
BOD, 5-day, 20 deg. Cweekly average≤ 65 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 45 mg/Lall year
pHminimum≥ 6.5 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedweekly average≤ 110 mg/Lall year
Solids, total suspendedmonthly average≤ 70 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 4 mg/LApr–Jun
Nitrogen, ammonia total [as N]daily maximum≤ 7.3 mg/LOct–Dec
Nitrogen, ammonia total [as N]daily maximum≤ 7.3 mg/LJan–Mar
Nitrogen, ammonia total [as N]daily maximum≤ 4 mg/LJul–Sep
Nitrogen, ammonia total [as N]monthly average≤ 1.4 mg/LApr–Jun
Nitrogen, ammonia total [as N]monthly average≤ 2.2 mg/LOct–Dec
Nitrogen, ammonia total [as N]monthly average≤ 2.9 mg/LJan–Mar
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/LJul–Sep
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Chlorine, total residualdaily maximum≤ 17 ug/LApr–Dec
Chlorine, total residualmonthly average≤ 8 ug/LApr–Dec
E. colidaily maximum≤ 1030 #/100mLApr–Dec
E. coli30-day geometric mean≤ 206 #/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/MO0039012 · MCP: https://passage-data.com/mcp