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Homer, Village of

Sewage treatment plant, Homer, Illinois. NPDES permit IL0050300, in force until Aug 31, 2030. Last 12 months: over a limit 10 times (last June 2026), 4 of 23 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 001 form 0 monthly (23 values), outfall INF form L monthly (4 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 24 reports late

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

Period endingParameterReportedLimitOver by
January 2026Nitrogen, ammonia total [as N], daily maximum6.36 mg/L≤ 2.9 mg/L119%
February 2026Nitrogen, ammonia total [as N], daily maximum12.6 mg/L≤ 2.9 mg/L334%
March 2026Nitrogen, ammonia total [as N], daily maximum12.5 mg/L≤ 5.2 mg/L140%
March 2026Nitrogen, ammonia total [as N], monthly average12.5 mg/L≤ 1.5 mg/L733%
March 2026Nitrogen, ammonia total [as N], monthly average7.21 lb/d≤ 6.8 lb/d6%
March 2026Nitrogen, ammonia total [as N], weekly average12.5 mg/L≤ 3.7 mg/L238%
April 2026Nitrogen, ammonia total [as N], monthly average1.96 mg/L≤ 1.5 mg/L31%
April 2026Solids, total suspended, monthly average59 mg/L≤ 30 mg/L97%
April 2026Solids, total suspended, weekly average59 mg/L≤ 45 mg/L31%
June 2026Nitrogen, ammonia total [as N], monthly average1.44 mg/L≤ .9 mg/L60%

Limits in force (37)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]monthly average minimum≥ 5.5 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec001
Oxygen, dissolved [DO]minimum weekly average≥ 4 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec001
Oxygen, dissolved [DO]minimum weekly average≥ 6 mg/LMar–Jul001
Oxygen, dissolved [DO]daily minimum≥ 3.5 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec001
Oxygen, dissolved [DO]daily minimum≥ 5 mg/LMar–Jul001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 135 lb/dall year001
Solids, total suspendedweekly average≤ 203 lb/dall year001
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LMar, Apr, May, Sep, Oct001
Nitrogen, ammonia total [as N]monthly average≤ .9 mg/LJun–Aug001
Nitrogen, ammonia total [as N]daily maximum≤ 5.2 mg/LMar, Apr, May, Sep, Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 4.7 mg/LJun–Aug001
Nitrogen, ammonia total [as N]daily maximum≤ 2.9 mg/LJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 6.8 lb/dMar, Apr, May, Sep, Oct001
Nitrogen, ammonia total [as N]monthly average≤ 4.1 lb/dJun–Aug001
Nitrogen, ammonia total [as N]daily maximum≤ 23 lb/dMar, Apr, May, Sep, Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 21 lb/dJun–Aug001
Nitrogen, ammonia total [as N]daily maximum≤ 13 lb/dJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 2.3 mg/LJun–Aug001
Nitrogen, ammonia total [as N]weekly average≤ 3.7 mg/LMar, Apr, May, Sep, Oct001
Nitrogen, ammonia total [as N]weekly average≤ 10 lb/dJun–Aug001
Nitrogen, ammonia total [as N]weekly average≤ 17 lb/dMar, Apr, May, Sep, Oct001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualdaily maximum≤ .05 mg/Lall year001
Coliform, fecal generaldaily maximumreport only (#/100mL)all year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 40 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 113 lb/dall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 180 lb/dall year001
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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