Passage Data · Check a report · Use it from your AI

Sid 1 Butler Co - Clear Lake Residential Assn

Sewage treatment plant, Columbus, Nebraska. NPDES permit NE0114901, in force until Jun 30, 2028. Last 12 months: over a limit 3 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 26 days after each period: outfall 001 form M quarterly (12 values), outfall 001 form Q quarterly (8 values), outfall 001 form S twice a year, outfall INF form A yearly
Renewal application due
Jan 2, 2028 · 180 days before expiry; your permit may set another date
Last report on file
June 2026
Oct 2024 – Sep 2025
6 values over a limit, 0 required values missing, 2 of 19 reports late

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

Period endingParameterReportedLimitOver by
December 2025Solids, total suspended, monthly average36 mg/L≤ 30 mg/L20%
May 2026E. coli, MTEC-MF, monthly geometric mean185 #/100mL≤ 126 #/100mL47%
June 2026E. coli, MTEC-MF, monthly geometric mean185 #/100mL≤ 126 #/100mL47%

Limits in force (37)

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≤ 1.59 kg/dall year001
Solids, total suspended7-day average≤ 2.38 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≤ .94 mg/LJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ .44 mg/LMar–May001
Nitrogen, ammonia total [as N]monthly average≤ .87 mg/LJun–Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 1.88 mg/LJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ .88 mg/LMar–May001
Nitrogen, ammonia total [as N]daily maximum≤ 1.75 mg/LJun–Oct001
Nitrogen, ammonia total [as N]monthly average≤ .027 kg/dJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ .015 kg/dMar–May001
Nitrogen, ammonia total [as N]monthly average≤ .028 kg/dJun–Oct001
Nitrogen, ammonia total [as N]daily maximum≤ .055 kg/dJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ .031 kg/dMar–May001
Nitrogen, ammonia total [as N]daily maximum≤ .056 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≤ 1.32 kg/dall year001
BOD, carbonaceous [5 day, 20 C]7-day average≤ 2.12 kg/dall year001
pHdaily minimumreport only (SU)all yearINF
pHdaily maximumreport 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

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NE0114901 · MCP: https://passage-data.com/mcp