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City of Clearmont

Sewage treatment plant, Clearmont, Missouri. NPDES permit MO0100803 expired Sep 30, 2024; its limits still apply. Last 12 months: over a limit 3 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form Q quarterly (16 values), outfall 002 form LW monthly (8 values), outfall INF form IQ quarterly (2 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 20 reports late

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

Period endingParameterReportedLimitOver by
June 2026Solids, suspended percent removal, monthly average minimum53.57≥ 65 %33%
June 2026pH, maximum9.11≤ 9 SU—
September 2026pH, maximum9.14≤ 9 SU—

Limits in force (28)

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≤ 120 mg/Lall year001
Solids, total suspendedmonthly average≤ 80 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≤ 3.9 mg/LApr–Sep001
Nitrogen, ammonia total [as N]daily maximum≤ 7.5 mg/LJan, Feb, Mar, Oct, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1.4 mg/LApr–Sep001
Nitrogen, ammonia total [as N]monthly average≤ 2.9 mg/LJan, Feb, Mar, Oct, Nov, Dec001
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
Application rate area sprayedtotalreport only (acr)all year002
Application rate area sprayedmonthly totalreport only (acr)all year002
Application rate, gallons spray irrigationtotalreport only (gal)all year002
Application rate, gallons spray irrigationmonthly totalreport only (gal)all year002
Spray irrigationtotalreport only (hr/d)all year002
Spray irrigationmonthly totalreport only (hr/d)all year002
Spray irrigation, application ratetotalreport only (in/d)all year002
Spray irrigation, application ratemonthly totalreport only (in/d)all year002
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/MO0100803 · MCP: https://passage-data.com/mcp