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City of Concordia

Sewage treatment plant, Concordia, Missouri. NPDES permit MO0025194, in force until Jan 31, 2029. Last 12 months: over a limit 15 times (last June 2026). 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 (22 values), outfall INF form IQ quarterly (10 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
20 values over a limit, 0 required values missing, 0 of 20 reports late

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

All 15 values over a limit
Period endingParameterReportedLimitOver by
January 2026BOD, 5-day, 20 deg. C, monthly average35≤ 30 mg/L17%
January 2026Solids, total suspended, monthly average52≤ 30 mg/L73%
January 2026Solids, total suspended, weekly average52≤ 45 mg/L16%
March 2026BOD, 5-day, 20 deg. C, monthly average41≤ 30 mg/L37%
March 2026Nitrogen, ammonia total [as N], monthly average6.56≤ 2.4 mg/L173%
March 2026Solids, suspended percent removal, monthly average minimum84≥ 85 %7%
April 2026Solids, total suspended, monthly average60≤ 30 mg/L100%
April 2026Solids, total suspended, weekly average60≤ 45 mg/L33%
June 2026BOD, 5-day, 20 deg. C, monthly average37≤ 30 mg/L23%
June 2026BOD, 5-day, percent removal, monthly average minimum39≥ 85 %307%
June 2026Nitrogen, ammonia total [as N], monthly average1.34≤ 1 mg/L34%
June 2026Solids, suspended percent removal, monthly average minimum19≥ 85 %440%
June 2026Solids, total suspended, monthly average108≤ 30 mg/L260%
June 2026Solids, total suspended, weekly average108≤ 45 mg/L140%
June 2026pH, maximum9.99≤ 9 SU—

Limits in force (60)

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 maximumreport only (mg/L)all year001
Oil and grease [soxhlet extr.] tot.monthly averagereport only (mg/L)all 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≤ 6.9 mg/LOct001
Nitrogen, ammonia total [as N]daily maximum≤ 8.4 mg/LAug001
Nitrogen, ammonia total [as N]daily maximum≤ 8.4 mg/LMay001
Nitrogen, ammonia total [as N]daily maximum≤ 6.9 mg/LJul001
Nitrogen, ammonia total [as N]daily maximum≤ 6.9 mg/LSep001
Nitrogen, ammonia total [as N]daily maximum≤ 8.4 mg/LJan, Feb, Mar, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 6.9 mg/LJun001
Nitrogen, ammonia total [as N]daily maximum≤ 6.9 mg/LApr001
Nitrogen, ammonia total [as N]monthly average≤ 1.8 mg/LOct001
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/LAug001
Nitrogen, ammonia total [as N]monthly average≤ 1.6 mg/LMay001
Nitrogen, ammonia total [as N]monthly average≤ .8 mg/LJul001
Nitrogen, ammonia total [as N]monthly average≤ 1.1 mg/LSep001
Nitrogen, ammonia total [as N]monthly average≤ 2.4 mg/LJan, Feb, Mar, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/LJun001
Nitrogen, ammonia total [as N]monthly average≤ 1.9 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
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year001
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year001
Iron, total recoverabledaily maximumreport only (ug/L)all year001
Iron, total recoverablemonthly averagereport only (ug/L)all year001
Zinc, total recoverabledaily maximumreport only (ug/L)all year001
Zinc, total recoverablemonthly averagereport only (ug/L)all year001
Aluminum, total recoverabledaily maximumreport only (ug/L)all year001
Aluminum, total recoverablemonthly averagereport only (ug/L)all year001
Lead, total recoverabledaily maximum≤ 15.7 ug/Lall year001
Lead, total recoverablemonthly average≤ 8 ug/Lall year001
Copper, total recoverabledaily maximum≤ 30.7 ug/Lall year001
Copper, total recoverablemonthly average≤ 9.4 ug/Lall 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
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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MO0025194 · MCP: https://passage-data.com/mcp