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Village of Benton City

Sewage treatment plant, Benton City, Missouri. NPDES permit MO0103021, in force until Dec 31, 2029. Last 12 months: over a limit 7 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form Q quarterly (16 values), outfall INF form IQ quarterly (2 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
10 values over a limit, 2 required values missing, 0 of 10 reports late

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

Period endingParameterReportedLimitOver by
March 2026Oil and grease [soxhlet extr.] tot., monthly average10.62≤ 10 mg/L6%
June 2026BOD, 5-day, percent removal, monthly average minimum50≥ 65 %43%
June 2026E. coli, 30-day geometric mean412≤ 206 #/100mL100%
June 2026E. coli, 7-day geometric mean1230≤ 1030 #/100mL19%
June 2026Nitrogen, ammonia total [as N], monthly average1.8≤ 1.3 mg/L38%
June 2026Solids, suspended percent removal, monthly average minimum47≥ 65 %51%
June 2026Solids, total suspended, monthly average80≤ 70 mg/L14%

Limits in force (22)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cweekly average≤ 65 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 45 mg/Lall year001
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedweekly average≤ 110 mg/Lall year001
Solids, total suspendedmonthly average≤ 70 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/LJan–Mar001
Nitrogen, ammonia total [as N]daily maximum≤ 9.8 mg/LOct–Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 5.4 mg/LApr–Sep001
Nitrogen, ammonia total [as N]monthly average≤ 2.7 mg/LJan–Mar001
Nitrogen, ammonia total [as N]monthly average≤ 2.8 mg/LOct–Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1.3 mg/LApr–Sep001
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. coli30-day geometric mean≤ 206 #/100mLApr–Dec001
BOD, 5-day, percent removalmonthly average minimum≥ 65 %all year001
Solids, suspended percent removalmonthly average minimum≥ 65 %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.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MO0103021 · MCP: https://passage-data.com/mcp