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Malcolm WWTF

Sewage treatment plant, Malcolm, Nebraska. NPDES permit NE0024261, in force until Sep 30, 2027. Last 12 months: over a limit once (last April 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form M quarterly (24 values), outfall INF form A yearly (4 values)
Renewal application due
Apr 3, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 1 of 13 reports late

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

Period endingParameterReportedLimitOver by
April 2026Solids, total suspended, 7-day average18.5766 kg/d≤ 16.95 kg/d10%

Limits in force (36)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year001
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year001
pHdaily minimum≥ 6.5 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspended7-day average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 11.3 kg/dall year001
Solids, total suspended7-day average≤ 16.95 kg/dall year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly average≤ 5.8 mg/LJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 3.81 mg/LMar–May001
Nitrogen, ammonia total [as N]monthly average≤ 2.94 mg/LJun–Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 11.63 mg/LJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 7.64 mg/LMar–May001
Nitrogen, ammonia total [as N]daily maximum≤ 5.91 mg/LJun–Oct001
Nitrogen, ammonia total [as N]monthly average≤ .89 kg/dJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ .62 kg/dMar–May001
Nitrogen, ammonia total [as N]monthly average≤ .52 kg/dJun–Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 1.78 kg/dJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 1.25 kg/dMar–May001
Nitrogen, ammonia total [as N]daily maximum≤ 1.04 kg/dJun–Oct001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
E. coli, MTEC-MFmonthly geometric mean≤ 126 #/100mLMay–Sep001
E. coli, MTEC-MFdaily maximum≤ 298 #/100mLMay–Sep001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]7-day average≤ 40 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 9.42 kg/dall year001
BOD, carbonaceous [5 day, 20 C]7-day average≤ 15.06 kg/dall year001
pHvaluereport only (SU)all yearINF
Solids, total suspendedvaluereport only (mg/L)all yearINF
Flow, in conduit or thru treatment plantvaluereport only (MGD)all yearINF
BOD, carbonaceous [5 day, 20 C]valuereport only (mg/L)all yearINF

How strict are these limits?

Cited limits by parameter: Nebraska'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/NE0024261 · MCP: https://passage-data.com/mcp