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City of Parma

Sewage treatment plant, Parma, Missouri. NPDES permit MO0039900, in force until Oct 31, 2027. Last 12 months: over a limit 34 times (last August 2026), 6 of 28 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
Renewal application due
May 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
28 values over a limit, 0 required values missing, 4 of 32 reports late

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

All 34 values over a limit
Period endingParameterReportedLimitOver by
October 2025E. coli, 30-day geometric mean770≤ 206 #/100mL274%
October 2025Solids, suspended percent removal, monthly average minimum56≥ 65 %26%
November 2025Solids, suspended percent removal, monthly average minimum64≥ 65 %3%
December 2025BOD, 5-day, percent removal, monthly average minimum0≥ 65 %186%
December 2025Nitrogen, ammonia total [as N], monthly average7.74≤ 3.5 mg/L121%
December 2025Solids, suspended percent removal, monthly average minimum3≥ 65 %177%
January 2026Nitrogen, ammonia total [as N], monthly average6.72≤ 3.9 mg/L72%
January 2026Solids, suspended percent removal, monthly average minimum49≥ 65 %46%
January 2026pH, maximum9.01≤ 9 SU—
February 2026Solids, suspended percent removal, monthly average minimum35≥ 65 %86%
March 2026BOD, 5-day, 20 deg. C, monthly average57.9≤ 45 mg/L29%
March 2026BOD, 5-day, percent removal, monthly average minimum6≥ 65 %169%
March 2026Solids, suspended percent removal, monthly average minimum11≥ 65 %154%
March 2026Solids, total suspended, monthly average78≤ 70 mg/L11%
April 2026BOD, 5-day, percent removal, monthly average minimum25.5≥ 65 %113%
April 2026E. coli, 30-day geometric mean387≤ 206 #/100mL88%
April 2026Solids, suspended percent removal, monthly average minimum17≥ 65 %137%
April 2026pH, maximum9.52≤ 9 SU—
May 2026BOD, 5-day, percent removal, monthly average minimum28≥ 65 %106%
May 2026E. coli, 30-day geometric mean> 2420≤ 206 #/100mL—
May 2026E. coli, 7-day geometric mean> 2420≤ 1030 #/100mL—
May 2026Solids, suspended percent removal, monthly average minimum24≥ 65 %117%
May 2026pH, maximum9.53≤ 9 SU—
June 2026E. coli, 30-day geometric mean1120≤ 206 #/100mL444%
June 2026E. coli, 7-day geometric mean1120≤ 1030 #/100mL9%
June 2026Solids, suspended percent removal, monthly average minimum23≥ 65 %120%
July 2026E. coli, 30-day geometric mean613≤ 206 #/100mL198%
July 2026Solids, suspended percent removal, monthly average minimum0≥ 65 %186%
July 2026Solids, total suspended, monthly average72≤ 70 mg/L3%
August 2026BOD, 5-day, percent removal, monthly average minimum43≥ 65 %63%
August 2026E. coli, 30-day geometric mean1550≤ 206 #/100mL652%
August 2026E. coli, 7-day geometric mean1550≤ 1030 #/100mL50%
August 2026Solids, suspended percent removal, monthly average minimum0≥ 65 %186%
August 2026pH, maximum9.12≤ 9 SU—

Limits in force (48)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cweekly average≤ 65 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 45 mg/Lall year001
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedweekly average≤ 110 mg/Lall year001
Solids, total suspendedmonthly average≤ 70 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, ammonia total [as N]daily maximum≤ 12.1 mg/LAug001
Nitrogen, ammonia total [as N]daily maximum≤ 23 mg/LMay001
Nitrogen, ammonia total [as N]daily maximum≤ 10.1 mg/LOct001
Nitrogen, ammonia total [as N]daily maximum≤ 14.4 mg/LJul001
Nitrogen, ammonia total [as N]daily maximum≤ 14.4 mg/LApr001
Nitrogen, ammonia total [as N]daily maximum≤ 17 mg/LJan, Feb, Mar, Nov001
Nitrogen, ammonia total [as N]daily maximum≤ 14.4 mg/LDec001
Nitrogen, ammonia total [as N]daily maximum≤ 14.4 mg/LJun, Sep001
Nitrogen, ammonia total [as N]monthly average≤ 1.2 mg/LAug001
Nitrogen, ammonia total [as N]monthly average≤ 2.9 mg/LMay001
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≤ 2.8 mg/LApr001
Nitrogen, ammonia total [as N]monthly average≤ 3.9 mg/LJan, Feb, Mar, Nov001
Nitrogen, ammonia total [as N]monthly average≤ 3.5 mg/LDec001
Nitrogen, ammonia total [as N]monthly average≤ 1.7 mg/LJun, Sep001
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≥ 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
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/MO0039900 · MCP: https://passage-data.com/mcp