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Cortland WWTF

Sewage treatment plant, Cortland, Nebraska. NPDES permit NE0027782, in force until Mar 31, 2030. Last 12 months: over a limit 2 times (last November 2025), 4 of 26 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 58 days after each period: outfall 001 form M quarterly (26 values), outfall 002 form M quarterly (26 values), outfall INF1 form A yearly, outfall INF2 form A yearly
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 24 reports late

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

Period endingParameterReportedLimitOver by
November 2025Solids, total suspended, daily maximum180 mg/L≤ 120 mg/L50%
November 2025Solids, total suspended, monthly average180 mg/L≤ 80 mg/L125%

Limits in force (80)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year001
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (kg/d)all year001
BOD, 5-day, 20 deg. Cweekly averagereport only (kg/d)all year001
pHdaily minimum≥ 6.5 SUall year001
pHdaily maximumreport only (SU)all year001
Solids, total suspendedmonthly average≤ 80 mg/Lall year001
Solids, total suspendeddaily maximum≤ 120 mg/Lall year001
Solids, total suspendedmonthly averagereport only (kg/d)all year001
Solids, total suspendeddaily maximumreport only (kg/d)all 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≤ 1.03 mg/LJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ .97 mg/LMar–May001
Nitrogen, ammonia total [as N]monthly average≤ .38 mg/LJun–Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 2.06 mg/LJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 1.96 mg/LMar–May001
Nitrogen, ammonia total [as N]daily maximum≤ .76 mg/LJun–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 1.26 kg/dJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ .81 kg/dMar–May001
Nitrogen, ammonia total [as N]monthly average≤ .33 kg/dJun–Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 2.53 kg/dJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 1.62 kg/dMar–May001
Nitrogen, ammonia total [as N]daily maximum≤ .65 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 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec001
E. coli, MTEC-MFmonthly average≤ 126 #/100mLMay–Sep001
E. coli, MTEC-MFdaily maximum≤ 298 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec001
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
Duration of dischargevaluereport only (d)all year001
Flow, totalvaluereport only (Mgal/mo)all year001
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year002
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year002
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year002
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year002
BOD, 5-day, 20 deg. Cmonthly averagereport only (kg/d)all year002
BOD, 5-day, 20 deg. Cweekly averagereport only (kg/d)all year002
pHdaily minimum≥ 6.5 SUall year002
pHdaily maximumreport only (SU)all year002
Solids, total suspendedmonthly average≤ 80 mg/Lall year002
Solids, total suspendeddaily maximum≤ 120 mg/Lall year002
Solids, total suspendedmonthly averagereport only (kg/d)all year002
Solids, total suspendeddaily maximumreport only (kg/d)all year002
Nitrogen, total [as N]monthly averagereport only (mg/L)all year002
Nitrogen, total [as N]daily maximumreport only (mg/L)all year002
Nitrogen, ammonia total [as N]monthly average≤ 1.04 mg/LJan, Feb, Nov, Dec002
Nitrogen, ammonia total [as N]monthly average≤ .74 mg/LMar–May002
Nitrogen, ammonia total [as N]monthly average≤ .24 mg/LJun–Oct002
Nitrogen, ammonia total [as N]daily maximum≤ 2.09 mg/LJan, Feb, Nov, Dec002
Nitrogen, ammonia total [as N]daily maximum≤ 1.48 mg/LMar–May002
Nitrogen, ammonia total [as N]daily maximum≤ .48 mg/LJun–Oct002
Nitrogen, ammonia total [as N]monthly average≤ 1.14 kg/dJan, Feb, Nov, Dec002
Nitrogen, ammonia total [as N]monthly average≤ .57 kg/dMar–May002
Nitrogen, ammonia total [as N]monthly average≤ .24 kg/dJun–Oct002
Nitrogen, ammonia total [as N]daily maximum≤ 2.29 kg/dJan, Feb, Nov, Dec002
Nitrogen, ammonia total [as N]daily maximum≤ 1.13 kg/dMar–May002
Nitrogen, ammonia total [as N]daily maximum≤ .49 kg/dJun–Oct002
Phosphorus, total [as P]monthly averagereport only (mg/L)all year002
Phosphorus, total [as P]daily maximumreport only (mg/L)all year002
E. coli, MTEC-MFmonthly geometric mean≤ 126 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec002
E. coli, MTEC-MFmonthly average≤ 126 #/100mLMay–Sep002
E. coli, MTEC-MFdaily maximum≤ 298 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec002
E. coli, MTEC-MFdaily maximum≤ 298 #/100mLMay–Sep002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Duration of dischargevaluereport only (d)all year002
Flow, totalvaluereport only (Mgal/mo)all year002
BOD, 5-day, 20 deg. Cvaluereport only (mg/L)all yearINF1
pHvaluereport only (SU)all yearINF1
Solids, total suspendedvaluereport only (mg/L)all yearINF1
Flow, in conduit or thru treatment plantvaluereport only (MGD)all yearINF1
BOD, 5-day, 20 deg. Cvaluereport only (mg/L)all yearINF2
pHvaluereport only (SU)all yearINF2
Solids, total suspendedvaluereport only (mg/L)all yearINF2
Flow, in conduit or thru treatment plantvaluereport only (MGD)all yearINF2

How strict are these limits?

Cited limits by parameter: Nebraska's rules and the federal ones.

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Your permit document is the final word. As JSON: /api/v1/permits/NE0027782 · MCP: https://passage-data.com/mcp