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City of Center

Sewage treatment plant, Center, Missouri. NPDES permit MO0107719, in force until Feb 28, 2029. Last 12 months: over a limit 67 times (last August 2026), 1 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 (2 values), outfall INF form IM monthly (2 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
74 values over a limit, 0 required values missing, 1 of 28 reports late

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

All 67 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, 5-day, 20 deg. C, monthly average23.7≤ 10 mg/L137%
October 2025BOD, 5-day, 20 deg. C, weekly average23.7≤ 15 mg/L58%
October 2025E. coli, daily maximum2419≤ 126 #/100mL1820%
October 2025Solids, total suspended, monthly average160≤ 15 mg/L967%
October 2025Solids, total suspended, weekly average160≤ 20 mg/L700%
November 2025BOD, 5-day, 20 deg. C, monthly average24.9≤ 10 mg/L149%
November 2025BOD, 5-day, 20 deg. C, weekly average24.9≤ 15 mg/L66%
November 2025Solids, total suspended, monthly average80≤ 15 mg/L433%
November 2025Solids, total suspended, weekly average80≤ 20 mg/L300%
December 2025BOD, 5-day, 20 deg. C, monthly average37.6≤ 10 mg/L276%
December 2025BOD, 5-day, 20 deg. C, weekly average37.6≤ 15 mg/L151%
December 2025E. coli, daily maximum2419≤ 126 #/100mL1820%
December 2025Solids, suspended percent removal, monthly average minimum64.3≥ 65 %2%
December 2025Solids, total suspended, monthly average40≤ 15 mg/L167%
December 2025Solids, total suspended, weekly average40≤ 20 mg/L100%
January 2026BOD, 5-day, 20 deg. C, monthly average37.6≤ 10 mg/L276%
January 2026BOD, 5-day, 20 deg. C, weekly average37.6≤ 15 mg/L151%
January 2026Solids, total suspended, monthly average40≤ 15 mg/L167%
January 2026Solids, total suspended, weekly average40≤ 20 mg/L100%
February 2026BOD, 5-day, 20 deg. C, monthly average27.4≤ 10 mg/L174%
February 2026BOD, 5-day, 20 deg. C, weekly average27.4≤ 15 mg/L83%
February 2026E. coli, daily maximum162.4≤ 126 #/100mL29%
February 2026Nitrogen, ammonia total [as N], monthly average3.89≤ 2.7 mg/L44%
February 2026Solids, suspended percent removal, monthly average minimum0≥ 65 %186%
February 2026Solids, total suspended, monthly average80≤ 15 mg/L433%
February 2026Solids, total suspended, weekly average80≤ 20 mg/L300%
March 2026BOD, 5-day, 20 deg. C, monthly average21.7≤ 10 mg/L117%
March 2026BOD, 5-day, 20 deg. C, weekly average21.7≤ 15 mg/L45%
March 2026BOD, 5-day, percent removal, monthly average minimum.45≥ 65 %184%
March 2026E. coli, daily maximum547.5≤ 126 #/100mL335%
March 2026Nitrogen, ammonia total [as N], monthly average6.41≤ 2.7 mg/L137%
March 2026Solids, suspended percent removal, monthly average minimum37.5≥ 65 %79%
March 2026Solids, total suspended, monthly average50≤ 15 mg/L233%
March 2026Solids, total suspended, weekly average50≤ 20 mg/L150%
April 2026BOD, 5-day, 20 deg. C, monthly average34.4≤ 10 mg/L244%
April 2026BOD, 5-day, 20 deg. C, weekly average34.4≤ 15 mg/L129%
April 2026E. coli, daily maximum146.7≤ 126 #/100mL16%
April 2026Solids, total suspended, monthly average80≤ 15 mg/L433%
April 2026Solids, total suspended, weekly average80≤ 20 mg/L300%
May 2026BOD, 5-day, 20 deg. C, monthly average17.9≤ 10 mg/L79%
May 2026BOD, 5-day, 20 deg. C, weekly average17.9≤ 15 mg/L19%
May 2026Solids, suspended percent removal, monthly average minimum52≥ 65 %37%
May 2026Solids, total suspended, monthly average130≤ 15 mg/L767%
May 2026Solids, total suspended, weekly average130≤ 20 mg/L550%
June 2026BOD, 5-day, 20 deg. C, monthly average23.4≤ 10 mg/L134%
June 2026BOD, 5-day, 20 deg. C, weekly average23.4≤ 15 mg/L56%
June 2026BOD, 5-day, percent removal, monthly average minimum14.1≥ 65 %145%
June 2026E. coli, daily maximum387.3≤ 126 #/100mL207%
June 2026Oil and grease [soxhlet extr.] tot., monthly average15≤ 10 mg/L50%
June 2026Solids, suspended percent removal, monthly average minimum44≥ 65 %60%
June 2026Solids, total suspended, monthly average130≤ 15 mg/L767%
June 2026Solids, total suspended, weekly average130≤ 20 mg/L550%
July 2026BOD, 5-day, 20 deg. C, monthly average29.9≤ 10 mg/L199%
July 2026BOD, 5-day, 20 deg. C, weekly average29.9≤ 15 mg/L99%
July 2026BOD, 5-day, percent removal, monthly average minimum2.5≥ 65 %179%
July 2026E. coli, daily maximum142.1≤ 126 #/100mL13%
July 2026Solids, suspended percent removal, monthly average minimum.62≥ 65 %184%
July 2026Solids, total suspended, monthly average160≤ 15 mg/L967%
July 2026Solids, total suspended, weekly average160≤ 20 mg/L700%
July 2026pH, maximum9.05≤ 9 SU—
August 2026BOD, 5-day, 20 deg. C, monthly average20.4≤ 10 mg/L104%
August 2026BOD, 5-day, 20 deg. C, weekly average20.4≤ 15 mg/L36%
August 2026BOD, 5-day, percent removal, monthly average minimum0≥ 65 %186%
August 2026E. coli, daily maximum687≤ 126 #/100mL445%
August 2026Solids, suspended percent removal, monthly average minimum0≥ 65 %186%
August 2026Solids, total suspended, monthly average130≤ 15 mg/L767%
August 2026Solids, total suspended, weekly average130≤ 20 mg/L550%

Limits in force (34)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cweekly average≤ 15 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 10 mg/Lall year001
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedweekly average≤ 20 mg/Lall year001
Solids, total suspendedmonthly average≤ 15 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≤ 12.1 mg/LJun001
Nitrogen, ammonia total [as N]daily maximum≤ 10.1 mg/LApr001
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LSep001
Nitrogen, ammonia total [as N]daily maximum≤ 10.1 mg/LJul001
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LAug001
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LJan, Nov001
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LOct001
Nitrogen, ammonia total [as N]daily maximum≤ 10.1 mg/LFeb, Mar, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LMay001
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LJun001
Nitrogen, ammonia total [as N]monthly average≤ 2.3 mg/LApr001
Nitrogen, ammonia total [as N]monthly average≤ 1.7 mg/LSep001
Nitrogen, ammonia total [as N]monthly average≤ 1.1 mg/LJul001
Nitrogen, ammonia total [as N]monthly average≤ 1.3 mg/LAug001
Nitrogen, ammonia total [as N]monthly average≤ 3.1 mg/LJan, Nov001
Nitrogen, ammonia total [as N]monthly average≤ 2.6 mg/LOct001
Nitrogen, ammonia total [as N]monthly average≤ 2.7 mg/LFeb, Mar, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1.9 mg/LMay001
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. colidaily maximum≤ 126 #/100mLall year001
E. colimonthly averagereport only (#/100mL)all year001
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.

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Your permit document is the final word. As JSON: /api/v1/permits/MO0107719 · MCP: https://passage-data.com/mcp