Passage Data · Check a report · Use it from your AI

City of Lilbourn

Sewage treatment plant, Lilbourn, Missouri. NPDES permit MO0048178 expired Mar 31, 2026; its limits still apply. Last 12 months: over a limit 50 times (last August 2026), 86 required values missing, 16 of 30 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form M monthly (14 values), outfall 001 form Q quarterly (8 values), outfall INF form IM monthly (2 values), outfall INF form IQ quarterly (8 values), outfall 001 form WA every 60 months
Last report on file
September 2026
Oct 2024 – Sep 2025
62 values over a limit, 42 required values missing, 11 of 33 reports late

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

All 50 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, 5-day, percent removal, monthly average minimum18≥ 85 %447%
October 2025E. coli, 30-day geometric mean> 2420≤ 206 #/100mL—
October 2025E. coli, 7-day geometric mean> 2420≤ 1030 #/100mL—
October 2025Nitrogen, ammonia total [as N], daily maximum20.6≤ 10 mg/L106%
October 2025Nitrogen, ammonia total [as N], monthly average20.6≤ 2 mg/L930%
October 2025Solids, suspended percent removal, monthly average minimum1≥ 85 %560%
November 2025Nitrogen, ammonia total [as N], monthly average4.85≤ 3.9 mg/L24%
November 2025Nitrogen, ammonia total [as N], monthly average4.85≤ 3.9 mg/L24%
December 2025Nitrogen, ammonia total [as N], monthly average13.4≤ 3.5 mg/L283%
December 2025Solids, suspended percent removal, monthly average minimum.9≥ 85 %561%
January 2026BOD, 5-day, percent removal, monthly average minimum44≥ 85 %273%
January 2026Nitrogen, ammonia total [as N], monthly average14.9≤ 3.9 mg/L282%
February 2026BOD, 5-day, 20 deg. C, monthly average174≤ 30 mg/L480%
February 2026BOD, 5-day, 20 deg. C, weekly average174≤ 45 mg/L287%
February 2026Nitrogen, ammonia total [as N], daily maximum30.3≤ 17 mg/L78%
February 2026Nitrogen, ammonia total [as N], monthly average30.3≤ 3.9 mg/L677%
February 2026Solids, suspended percent removal, monthly average minimum> 9≥ 85 %89%
February 2026Solids, total suspended, monthly average99≤ 30 mg/L230%
February 2026Solids, total suspended, weekly average99≤ 45 mg/L120%
March 2026BOD, 5-day, 20 deg. C, monthly average79.3≤ 30 mg/L164%
March 2026BOD, 5-day, 20 deg. C, monthly average79.3≤ 30 mg/L164%
March 2026BOD, 5-day, 20 deg. C, weekly average79.3≤ 45 mg/L76%
March 2026BOD, 5-day, 20 deg. C, weekly average79.3≤ 45 mg/L76%
March 2026BOD, 5-day, percent removal, monthly average minimum0≥ 85 %567%
March 2026BOD, 5-day, percent removal, monthly average minimum0≥ 85 %567%
March 2026Nitrogen, ammonia total [as N], daily maximum28.3≤ 17 mg/L66%
March 2026Nitrogen, ammonia total [as N], daily maximum28.3≤ 17 mg/L66%
March 2026Nitrogen, ammonia total [as N], monthly average28.3≤ 3.9 mg/L626%
March 2026Nitrogen, ammonia total [as N], monthly average28.3≤ 3.9 mg/L626%
March 2026Solids, suspended percent removal, monthly average minimum0≥ 85 %567%
March 2026Solids, suspended percent removal, monthly average minimum0≥ 85 %567%
March 2026Solids, total suspended, monthly average31≤ 30 mg/L3%
March 2026Solids, total suspended, monthly average31≤ 30 mg/L3%
May 2026E. coli, 30-day geometric mean> 2420≤ 206 #/100mL—
May 2026E. coli, 7-day geometric mean> 2420≤ 1030 #/100mL—
May 2026Nitrogen, ammonia total [as N], daily maximum26.2≤ 23 mg/L14%
May 2026Nitrogen, ammonia total [as N], monthly average26.2≤ 2.9 mg/L803%
May 2026Solids, suspended percent removal, monthly average minimum72≥ 85 %87%
June 2026BOD, 5-day, 20 deg. C, monthly average70.25≤ 30 mg/L134%
June 2026BOD, 5-day, 20 deg. C, weekly average125≤ 45 mg/L178%
June 2026BOD, 5-day, percent removal, monthly average minimum21≥ 85 %427%
June 2026E. coli, 30-day geometric mean> 2400≤ 206 #/100mL—
June 2026E. coli, 7-day geometric mean> 2400≤ 1030 #/100mL—
June 2026Nitrogen, ammonia total [as N], daily maximum40.6≤ 14.4 mg/L182%
June 2026Nitrogen, ammonia total [as N], monthly average21≤ 1.7 mg/L1135%
July 2026BOD, 5-day, percent removal, monthly average minimum55≥ 85 %200%
July 2026E. coli, 30-day geometric mean371≤ 206 #/100mL80%
July 2026Solids, suspended percent removal, monthly average minimum76≥ 85 %60%
August 2026E. coli, 30-day geometric mean> 2420≤ 206 #/100mL—
August 2026E. coli, 7-day geometric mean> 2420≤ 1030 #/100mL—

Limits in force (48)

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 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≤ 23 mg/LMay001
Nitrogen, ammonia total [as N]daily maximum≤ 14.4 mg/LJun, Sep001
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LAug001
Nitrogen, ammonia total [as N]daily maximum≤ 17 mg/LJan, Feb, Mar, Nov001
Nitrogen, ammonia total [as N]daily maximum≤ 10 mg/LOct001
Nitrogen, ammonia total [as N]daily maximum≤ 14.4 mg/LJul001
Nitrogen, ammonia total [as N]daily maximum≤ 14.4 mg/LDec001
Nitrogen, ammonia total [as N]daily maximum≤ 14.4 mg/LApr001
Nitrogen, ammonia total [as N]monthly average≤ 2.9 mg/LMay001
Nitrogen, ammonia total [as N]monthly average≤ 1.7 mg/LJun, Sep001
Nitrogen, ammonia total [as N]monthly average≤ 1.2 mg/LAug001
Nitrogen, ammonia total [as N]monthly average≤ 3.9 mg/LJan, Feb, Mar, Nov001
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/LOct001
Nitrogen, ammonia total [as N]monthly average≤ 1.4 mg/LJul001
Nitrogen, ammonia total [as N]monthly average≤ 3.5 mg/LDec001
Nitrogen, ammonia total [as N]monthly average≤ 2.9 mg/LApr001
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
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
Toxicity [acute], Ceriodaphnia dubiadaily maximumreport only (toxic)all year001
Toxicity [acute], Pimephales promelas [Fathead Minnow]daily maximumreport only (toxic)all year001
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
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all yearINF
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all yearINF
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all yearINF
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all yearINF
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all yearINF
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all yearINF
Phosphorus, total [as P]daily maximumreport only (mg/L)all yearINF
Phosphorus, total [as P]monthly 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

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MO0048178 · MCP: https://passage-data.com/mcp