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City of Allendale

Sewage treatment plant, Allendale, Missouri. NPDES permit MO0130281, in force until Jan 31, 2031. Last 12 months: over a limit 6 times (last March 2026), 34 required values missing, 2 of 5 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form Q quarterly, outfall INF form IQ quarterly
Last report on file
March 2026
Oct 2024 – Sep 2025
23 values over a limit, 42 required values missing, 3 of 4 reports late

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

Period endingParameterReportedLimitOver by
December 2025Nitrogen, ammonia total [as N], daily maximum13.2≤ 8 mg/L65%
December 2025Nitrogen, ammonia total [as N], monthly average13.2≤ 2.9 mg/L355%
March 2026Nitrogen, ammonia total [as N], daily maximum32≤ 8 mg/L300%
March 2026Nitrogen, ammonia total [as N], daily maximum32≤ 8 mg/L300%
March 2026Nitrogen, ammonia total [as N], monthly average32≤ 2.7 mg/L1085%
March 2026Nitrogen, ammonia total [as N], monthly average32≤ 2.7 mg/L1085%

Limits in force (22)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year001
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 30 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≤ 4.5 mg/LApr–Sep001
Nitrogen, ammonia total [as N]daily maximum≤ 8 mg/LJan–Mar001
Nitrogen, ammonia total [as N]daily maximum≤ 8 mg/LOct–Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1.3 mg/LApr–Sep001
Nitrogen, ammonia total [as N]monthly average≤ 2.7 mg/LJan–Mar001
Nitrogen, ammonia total [as N]monthly average≤ 2.9 mg/LOct–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. coliweekly average≤ 630 #/100mLApr–Dec001
E. coligeometric mean≤ 126 #/100mLApr–Dec001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %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/MO0130281 · MCP: https://passage-data.com/mcp