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Marissa, Village of

Sewage treatment plant, Marissa, Illinois. NPDES permit IL0024813 expired Mar 31, 2026; its limits still apply. Last 12 months: over a limit 28 times (last September 2026), 12 of 26 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 001 form 0 monthly (29 values), outfall INF form L monthly (4 values), outfall 001 form S twice a year
Last report on file
September 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 20 of 26 reports late

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

All 28 values over a limit
Period endingParameterReportedLimitOver by
October 2025Nitrogen, ammonia total [as N], monthly average3.37 mg/L≤ 1.5 mg/L125%
October 2025Oxygen, dissolved [DO], daily minimum3.1 mg/L≥ 3.5 mg/L11%
October 2025Oxygen, dissolved [DO], minimum weekly average3.1 mg/L≥ 4 mg/L23%
October 2025Oxygen, dissolved [DO], monthly average minimum3.1 mg/L≥ 5.5 mg/L44%
December 2025Nitrogen, ammonia total [as N], daily maximum8.26 mg/L≤ 4.4 mg/L88%
December 2025Zinc, total [as Zn], monthly average.1092 mg/L≤ .0689 mg/L58%
January 2026Zinc, total [as Zn], monthly average.0901 mg/L≤ .0689 mg/L31%
February 2026Nitrogen, ammonia total [as N], daily maximum6.72 mg/L≤ 4.4 mg/L53%
April 2026Nitrogen, ammonia total [as N], daily maximum18.1 mg/L≤ 7.9 mg/L129%
April 2026Nitrogen, ammonia total [as N], monthly average7.12 mg/L≤ 1.5 mg/L375%
April 2026Nitrogen, ammonia total [as N], weekly average7.12 mg/L≤ 5.1 mg/L40%
May 2026Oxygen, dissolved [DO], daily minimum4.5 mg/L≥ 5 mg/L10%
May 2026Oxygen, dissolved [DO], minimum weekly average4.5 mg/L≥ 6 mg/L25%
June 2026Solids, total suspended, daily maximum1002.8 lb/d≤ 508 lb/d97%
June 2026Solids, total suspended, daily maximum58 mg/L≤ 24 mg/L142%
June 2026Solids, total suspended, monthly average27.3 mg/L≤ 12 mg/L128%
July 2026Nitrogen, ammonia total [as N], monthly average3.06 mg/L≤ 1.5 mg/L104%
July 2026Nitrogen, ammonia total [as N], weekly average4.4 mg/L≤ 3.8 mg/L16%
July 2026Oxygen, dissolved [DO], daily minimum2.2 mg/L≥ 5 mg/L56%
July 2026Oxygen, dissolved [DO], minimum weekly average2.7 mg/L≥ 6 mg/L55%
August 2026BOD, carbonaceous [5 day, 20 C], daily maximum20.3 mg/L≤ 20 mg/L2%
August 2026Mercury, total [as Hg], annual average17.3 ng/L≤ 12 ng/L44%
August 2026Oxygen, dissolved [DO], monthly average minimum4.7 mg/L≥ 5.5 mg/L15%
August 2026Solids, total suspended, daily maximum33 mg/L≤ 24 mg/L38%
August 2026Solids, total suspended, monthly average16 mg/L≤ 12 mg/L33%
September 2026Mercury, total [as Hg], annual average15.8 ng/L≤ 12 ng/L32%
September 2026Oxygen, dissolved [DO], monthly average minimum4.8 mg/L≥ 5.5 mg/L13%
September 2026Zinc, total [as Zn], monthly average.12 mg/L≤ .0689 mg/L74%

Limits in force (91)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]monthly average minimum≥ 5.5 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec001
Oxygen, dissolved [DO]minimum weekly average≥ 6 mg/LMar–Jul001
Oxygen, dissolved [DO]minimum weekly average≥ 4 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec001
Oxygen, dissolved [DO]daily minimum≥ 5 mg/LMar–Jul001
Oxygen, dissolved [DO]daily minimum≥ 3.5 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 12 mg/Lall year001
Solids, total suspendeddaily maximum≤ 24 mg/Lall year001
Solids, total suspendedmonthly average≤ 254 lb/dall year001
Solids, total suspendeddaily maximum≤ 508 lb/dall year001
Oil & Greasedaily maximumreport only (mg/L)all year001
Oil & Greasedaily maximumreport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly average≤ 3.3 mg/LJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LJun–Aug001
Nitrogen, ammonia total [as N]monthly average≤ 2.1 mg/LMar001
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LApr, May, Sep, Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 4.4 mg/LJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 7.9 mg/LJun–Aug001
Nitrogen, ammonia total [as N]daily maximum≤ 10.1 mg/LMar001
Nitrogen, ammonia total [as N]daily maximum≤ 7.9 mg/LApr, May, Sep, Oct001
Nitrogen, ammonia total [as N]monthly average≤ 70 lb/dJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 32 lb/dJun–Aug001
Nitrogen, ammonia total [as N]monthly average≤ 44 lb/dMar001
Nitrogen, ammonia total [as N]monthly average≤ 32 lb/dApr, May, Sep, Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 93 lb/dJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 167 lb/dJun–Aug001
Nitrogen, ammonia total [as N]daily maximum≤ 214 lb/dMar001
Nitrogen, ammonia total [as N]daily maximum≤ 167 lb/dApr, May, Sep, Oct001
Nitrogen, ammonia total [as N]weekly average≤ 3.8 mg/LJun–Aug001
Nitrogen, ammonia total [as N]weekly average≤ 5.1 mg/LMar001
Nitrogen, ammonia total [as N]weekly average≤ 5.1 mg/LApr, May, Sep, Oct001
Nitrogen, ammonia total [as N]weekly average≤ 81 lb/dJun–Aug001
Nitrogen, ammonia total [as N]weekly average≤ 108 lb/dMar001
Nitrogen, ammonia total [as N]weekly average≤ 108 lb/dApr, May, Sep, Oct001
Cyanide, total [as CN]daily maximumreport only (ug/L)all year001
Cyanide, total [as CN]daily maximumreport only (ug/L)all year001
Cyanide, free [amenable to chlorination]daily maximumreport only (ug/L)all year001
Cyanide, free [amenable to chlorination]daily maximumreport only (ug/L)all year001
Fluoride, total [as F]daily maximumreport only (mg/L)all year001
Fluoride, total [as F]daily maximumreport only (mg/L)all year001
Arsenic, total [as As]daily maximumreport only (mg/L)all year001
Arsenic, total [as As]daily maximumreport only (mg/L)all year001
Barium, total [as Ba]daily maximumreport only (mg/L)all year001
Barium, total [as Ba]daily maximumreport only (mg/L)all year001
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year001
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year001
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)all year001
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)all year001
Chromium, total [as Cr]daily maximumreport only (mg/L)all year001
Chromium, total [as Cr]daily maximumreport only (mg/L)all year001
Copper, total [as Cu]daily maximumreport only (mg/L)all year001
Copper, total [as Cu]daily maximumreport only (mg/L)all year001
Iron, total [as Fe]daily maximumreport only (mg/L)all year001
Iron, total [as Fe]daily maximumreport only (mg/L)all year001
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all year001
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all year001
Lead, total [as Pb]daily maximumreport only (mg/L)all year001
Lead, total [as Pb]daily maximumreport only (mg/L)all year001
Manganese, total [as Mn]daily maximumreport only (mg/L)all year001
Manganese, total [as Mn]daily maximumreport only (mg/L)all year001
Nickel, total [as Ni]daily maximumreport only (mg/L)all year001
Nickel, total [as Ni]daily maximumreport only (mg/L)all year001
Silver, total [as Ag]daily maximumreport only (mg/L)all year001
Silver, total [as Ag]daily maximumreport only (mg/L)all year001
Zinc, total [as Zn]monthly average≤ .0689 mg/Lall year001
Zinc, total [as Zn]daily maximum≤ .2656 mg/Lall year001
Zinc, total [as Zn]daily maximumreport only (mg/L)all year001
Zinc, total [as Zn]daily maximumreport only (mg/L)all year001
Zinc, total [as Zn]monthly average≤ 1.5 lb/dall year001
Zinc, total [as Zn]daily maximum≤ 5.6 lb/dall year001
Selenium, total [as Se]daily maximumreport only (mg/L)all year001
Selenium, total [as Se]daily maximumreport only (mg/L)all year001
Phenolics, total recoverabledaily maximumreport only (mg/L)all year001
Phenolics, total recoverabledaily maximumreport only (mg/L)all year001
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
Mercury, total [as Hg]monthly averagereport only (ng/L)all year001
Mercury, total [as Hg]annual average≤ 12 ng/Lall year001
Mercury, total [as Hg]daily maximumreport only (ng/L)all year001
Mercury, total [as Hg]daily maximumreport only (ng/L)all year001
Coliform, fecal generaldaily maximumreport only (#/100mL)May–Oct001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 20 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 212 lb/dall year001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 424 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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