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Morrison, City of

Sewage treatment plant, Morrison, Illinois. NPDES permit IL0080068, in force until Jan 31, 2031. Last 12 months: no values over a limit, 12 of 22 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 008 form 0 monthly (20 values), outfall INF form L monthly (4 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 18 of 24 reports late

Limits in force (32)

ParameterStatisticLimitMonthsOutfall
pHminimum≥ 6 SUall year008
pHmaximum≤ 9 SUall year008
Solids, total suspendedmonthly average≤ 30 mg/Lall year008
Solids, total suspendedweekly average≤ 45 mg/Lall year008
Solids, total suspendedmonthly average≤ 647 lb/dall year008
Solids, total suspendedweekly average≤ 971 lb/dall year008
Nitrogen, total [as N]daily maximumreport only (mg/L)all year008
Nitrogen, ammonia total [as N]monthly average≤ 1.8 mg/LMar, Apr, May, Sep, Oct008
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LJun–Aug008
Nitrogen, ammonia total [as N]daily maximum≤ 4.4 mg/LMar, Apr, May, Sep, Oct008
Nitrogen, ammonia total [as N]daily maximum≤ 5.7 mg/LJun–Aug008
Nitrogen, ammonia total [as N]daily maximum≤ 3.6 mg/LJan, Feb, Nov, Dec008
Nitrogen, ammonia total [as N]monthly average≤ 39 lb/dMar, Apr, May, Sep, Oct008
Nitrogen, ammonia total [as N]monthly average≤ 32 lb/dJun–Aug008
Nitrogen, ammonia total [as N]daily maximum≤ 95 lb/dMar, Apr, May, Sep, Oct008
Nitrogen, ammonia total [as N]daily maximum≤ 123 lb/dJun–Aug008
Nitrogen, ammonia total [as N]daily maximum≤ 78 lb/dJan, Feb, Nov, Dec008
Nitrogen, ammonia total [as N]weekly average≤ 3.8 mg/LJun–Aug008
Nitrogen, ammonia total [as N]weekly average≤ 82 lb/dJun–Aug008
Phosphorus, total [as P]daily maximumreport only (mg/L)all year008
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year008
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year008
Chlorine, total residualdaily maximum≤ .05 mg/Lall year008
Coliform, fecal generaldaily maximum≤ 400 #/100mLMay–Oct008
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year008
BOD, carbonaceous [5 day, 20 C]weekly average≤ 40 mg/Lall year008
BOD, carbonaceous [5 day, 20 C]monthly average≤ 539 lb/dall year008
BOD, carbonaceous [5 day, 20 C]weekly average≤ 863 lb/dall year008
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all yearINF
Solids, total suspendedmonthly averagereport only (mg/L)all yearINF
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearINF
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearINF

How strict are these limits?

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IL0080068 · MCP: https://passage-data.com/mcp