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City of Fillmore

Sewage treatment plant, Fillmore, Missouri. NPDES permit MO0117722, in force until Aug 31, 2030. Last 12 months: over a limit 9 times (last February 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form M monthly (16 values), outfall INF form IM monthly (2 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
4 values 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 2025Nitrogen, ammonia total [as N], monthly average6.87≤ 2.4 mg/L186%
December 2025Solids, suspended percent removal, monthly average minimum58≥ 65 %20%
January 2026BOD, 5-day, 20 deg. C, monthly average46≤ 45 mg/L2%
January 2026Nitrogen, ammonia total [as N], daily maximum29.3≤ 7.5 mg/L291%
January 2026Nitrogen, ammonia total [as N], monthly average29.3≤ 2.4 mg/L1121%
January 2026Solids, suspended percent removal, monthly average minimum18≥ 65 %134%
January 2026Solids, total suspended, monthly average71.5≤ 70 mg/L2%
February 2026Nitrogen, ammonia total [as N], daily maximum23.2≤ 7.5 mg/L209%
February 2026Nitrogen, ammonia total [as N], monthly average23.2≤ 2.4 mg/L867%

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≤ 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≤ 6.9 mg/LOct001
Nitrogen, ammonia total [as N]daily maximum≤ 3.6 mg/LJul001
Nitrogen, ammonia total [as N]daily maximum≤ 7.5 mg/LJan, Feb, Mar, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 3.6 mg/LSep001
Nitrogen, ammonia total [as N]daily maximum≤ 3.6 mg/LApr, May001
Nitrogen, ammonia total [as N]daily maximum≤ 3.6 mg/LJun, Aug001
Nitrogen, ammonia total [as N]monthly average≤ 1.8 mg/LOct001
Nitrogen, ammonia total [as N]monthly average≤ .8 mg/LJul001
Nitrogen, ammonia total [as N]monthly average≤ 2.4 mg/LJan, Feb, Mar, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1.1 mg/LSep001
Nitrogen, ammonia total [as N]monthly average≤ 1.4 mg/LApr, May001
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/LJun, Aug001
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–Oct001
E. coli30-day geometric mean≤ 206 #/100mLApr–Oct001
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.

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/MO0117722 · MCP: https://passage-data.com/mcp