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City of Leadwood

Sewage treatment plant, Leadwood, Missouri. NPDES permit MO0104256, in force until Apr 30, 2030. Last 12 months: over a limit 87 times (last July 2026), 2 of 26 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 (10 values), outfall INF form IM monthly (2 values), outfall INF form IQ quarterly (8 values)
Last report on file
July 2026
Oct 2024 – Sep 2025
89 values over a limit, 8 required values missing, 2 of 25 reports late

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

All 87 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, 5-day, 20 deg. C, monthly average86.4≤ 30 mg/L188%
October 2025BOD, 5-day, 20 deg. C, weekly average86.4≤ 45 mg/L92%
October 2025BOD, 5-day, percent removal, monthly average minimum35≥ 85 %333%
October 2025E. coli, 30-day geometric mean> 2420≤ 126 #/100mL—
October 2025E. coli, 7-day geometric mean> 2420≤ 630 #/100mL—
October 2025Nitrogen, ammonia total [as N], daily maximum30.8≤ 12.1 mg/L155%
October 2025Nitrogen, ammonia total [as N], monthly average30.8≤ 2.3 mg/L1239%
October 2025Solids, suspended percent removal, monthly average minimum59≥ 85 %173%
October 2025Solids, total suspended, monthly average61≤ 30 mg/L103%
October 2025Solids, total suspended, weekly average61≤ 45 mg/L36%
November 2025BOD, 5-day, 20 deg. C, monthly average104≤ 30 mg/L247%
November 2025BOD, 5-day, 20 deg. C, weekly average104≤ 45 mg/L131%
November 2025BOD, 5-day, percent removal, monthly average minimum.44≥ 85 %564%
November 2025Nitrogen, ammonia total [as N], daily maximum22.5≤ 12.1 mg/L86%
November 2025Nitrogen, ammonia total [as N], monthly average22.5≤ 2.3 mg/L878%
November 2025Solids, suspended percent removal, monthly average minimum.55≥ 85 %563%
November 2025Solids, total suspended, weekly average105≤ 45 mg/L133%
December 2025BOD, 5-day, 20 deg. C, monthly average104≤ 30 mg/L247%
December 2025BOD, 5-day, 20 deg. C, weekly average104≤ 45 mg/L131%
December 2025BOD, 5-day, percent removal, monthly average minimum15≥ 85 %467%
December 2025Nitrogen, ammonia total [as N], daily maximum30.6≤ 12.1 mg/L153%
December 2025Nitrogen, ammonia total [as N], monthly average30.6≤ 2.3 mg/L1230%
December 2025Solids, suspended percent removal, monthly average minimum43≥ 85 %280%
December 2025Solids, total suspended, monthly average46≤ 30 mg/L53%
December 2025Solids, total suspended, weekly average46≤ 45 mg/L2%
January 2026BOD, 5-day, 20 deg. C, monthly average114≤ 30 mg/L280%
January 2026BOD, 5-day, 20 deg. C, weekly average114≤ 45 mg/L153%
January 2026BOD, 5-day, percent removal, monthly average minimum31≥ 85 %360%
January 2026Nitrogen, ammonia total [as N], daily maximum33.2≤ 12.1 mg/L174%
January 2026Nitrogen, ammonia total [as N], monthly average33.2≤ 2.3 mg/L1343%
January 2026Solids, suspended percent removal, monthly average minimum60≥ 85 %167%
January 2026Solids, total suspended, monthly average96≤ 30 mg/L220%
January 2026Solids, total suspended, weekly average96≤ 45 mg/L113%
February 2026BOD, 5-day, 20 deg. C, monthly average34.8≤ 30 mg/L16%
February 2026BOD, 5-day, percent removal, monthly average minimum70≥ 85 %100%
February 2026Nitrogen, ammonia total [as N], daily maximum15.8≤ 12.1 mg/L31%
February 2026Nitrogen, ammonia total [as N], monthly average15.8≤ 2.3 mg/L587%
February 2026Solids, suspended percent removal, monthly average minimum70≥ 85 %100%
February 2026Solids, total suspended, monthly average39≤ 30 mg/L30%
March 2026BOD, 5-day, 20 deg. C, monthly average89.9≤ 30 mg/L200%
March 2026BOD, 5-day, 20 deg. C, weekly average89.9≤ 45 mg/L100%
March 2026BOD, 5-day, percent removal, monthly average minimum1≥ 85 %560%
March 2026Nitrogen, ammonia total [as N], daily maximum22.6≤ 12.1 mg/L87%
March 2026Nitrogen, ammonia total [as N], monthly average22.6≤ 2.3 mg/L883%
March 2026Solids, suspended percent removal, monthly average minimum24≥ 85 %407%
March 2026Solids, total suspended, monthly average80≤ 30 mg/L167%
March 2026Solids, total suspended, weekly average80≤ 45 mg/L78%
April 2026BOD, 5-day, 20 deg. C, monthly average106≤ 30 mg/L253%
April 2026BOD, 5-day, 20 deg. C, weekly average106≤ 45 mg/L136%
April 2026BOD, 5-day, percent removal, monthly average minimum0≥ 85 %567%
April 2026E. coli, 30-day geometric mean2420≤ 126 #/100mL1821%
April 2026E. coli, 7-day geometric mean2420≤ 630 #/100mL284%
April 2026Nitrogen, ammonia total [as N], daily maximum28.3≤ 5.6 mg/L405%
April 2026Nitrogen, ammonia total [as N], monthly average28.3≤ 1.3 mg/L2077%
April 2026Solids, suspended percent removal, monthly average minimum0≥ 85 %567%
April 2026Solids, total suspended, monthly average53≤ 30 mg/L77%
April 2026Solids, total suspended, weekly average53≤ 45 mg/L18%
May 2026BOD, 5-day, 20 deg. C, monthly average105≤ 30 mg/L250%
May 2026BOD, 5-day, 20 deg. C, weekly average105≤ 45 mg/L133%
May 2026BOD, 5-day, percent removal, monthly average minimum0≥ 85 %567%
May 2026E. coli, 30-day geometric mean2420≤ 126 #/100mL1821%
May 2026E. coli, 7-day geometric mean2420≤ 630 #/100mL284%
May 2026Nitrogen, ammonia total [as N], daily maximum28.3≤ 5.6 mg/L405%
May 2026Nitrogen, ammonia total [as N], monthly average28.3≤ 1.3 mg/L2077%
May 2026Solids, suspended percent removal, monthly average minimum0≥ 85 %567%
May 2026Solids, total suspended, monthly average105≤ 30 mg/L250%
May 2026Solids, total suspended, weekly average105≤ 45 mg/L133%
June 2026BOD, 5-day, 20 deg. C, monthly average106≤ 30 mg/L253%
June 2026BOD, 5-day, 20 deg. C, weekly average106≤ 45 mg/L136%
June 2026BOD, 5-day, percent removal, monthly average minimum0≥ 85 %567%
June 2026E. coli, 30-day geometric mean> 2420≤ 126 #/100mL—
June 2026E. coli, 7-day geometric mean> 2420≤ 630 #/100mL—
June 2026Nitrogen, ammonia total [as N], daily maximum28.3≤ 5.6 mg/L405%
June 2026Nitrogen, ammonia total [as N], monthly average28.3≤ 1.3 mg/L2077%
June 2026Solids, suspended percent removal, monthly average minimum0≥ 85 %567%
June 2026Solids, total suspended, monthly average105≤ 30 mg/L250%
June 2026Solids, total suspended, weekly average105≤ 45 mg/L133%
July 2026BOD, 5-day, 20 deg. C, monthly average138≤ 30 mg/L360%
July 2026BOD, 5-day, 20 deg. C, weekly average138≤ 45 mg/L207%
July 2026BOD, 5-day, percent removal, monthly average minimum58≥ 85 %180%
July 2026E. coli, 30-day geometric mean2420≤ 126 #/100mL1821%
July 2026E. coli, 7-day geometric mean2420≤ 630 #/100mL284%
July 2026Nitrogen, ammonia total [as N], daily maximum33.9≤ 5.6 mg/L505%
July 2026Nitrogen, ammonia total [as N], monthly average33.9≤ 1.3 mg/L2508%
July 2026Solids, suspended percent removal, monthly average minimum84≥ 85 %7%
July 2026Solids, total suspended, monthly average95≤ 30 mg/L217%
July 2026Solids, total suspended, weekly average95≤ 45 mg/L111%

Limits in force (36)

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, total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]daily maximum≤ 5.6 mg/LApr–Sep001
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LJan, Feb, Mar, Oct, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1.3 mg/LApr–Sep001
Nitrogen, ammonia total [as N]monthly average≤ 2.3 mg/LJan, Feb, Mar, Oct, Nov, Dec001
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≤ 630 #/100mLApr–Oct001
E. coli30-day geometric mean≤ 126 #/100mLApr–Oct001
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.

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