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Watseka, City of

Sewage treatment plant, major discharger, Watseka, Illinois. NPDES permit IL0022161, in force until Dec 31, 2030. Last 12 months: over a limit once (last April 2026), 22 of 56 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 001 form 0 monthly (12 values), outfall A01 form 0 monthly (9 values), outfall C01 form 0 monthly (25 values), outfall INF form L monthly (4 values), outfall BIO form P twice a year, outfall C01 form P quarterly, and 2 more forms
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 12 of 74 reports late

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

Period endingParameterReportedLimitOver by
April 2026Chlorine, total residual, daily maximum.05 mg/L≤ .038 mg/L32%

Limits in force (230)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]monthly average minimumreport only (mg/L)all year001
Oxygen, dissolved [DO]minimum weekly averagereport only (mg/L)all year001
Oxygen, dissolved [DO]daily minimumreport only (mg/L)all year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year001
Chlorine, total residualmonthly average≤ .75 mg/Lall year001
Flow, totalmonthly totalreport only (Mgal/mo)all year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all yearA01
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all yearA01
pHminimum≥ 6 SUall yearA01
pHmaximum≤ 9 SUall yearA01
Solids, total suspendedmonthly averagereport only (mg/L)all yearA01
Solids, total suspendeddaily maximumreport only (mg/L)all yearA01
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all yearA01
Coliform, fecal generaldaily maximum≤ 400 #/100mLall yearA01
Flow, totalmonthly totalreport only (Mgal/mo)all yearA01
Perfluorooctanoic acid (PFOA)daily maximumreport only (ng/g)all yearBIO
Perfluorobutanoic acid (PFBA)daily maximumreport only (ng/g)all yearBIO
Perfluorooctanesulfonamide (PFOSA)daily maximumreport only (ng/g)all yearBIO
Perfluoropentanoic acid (PFPeA)daily maximumreport only (ng/g)all yearBIO
Perfluorohexanoic acid (PFHxA)daily maximumreport only (ng/g)all yearBIO
Perfluoroheptanoic acid (PFHpA)daily maximumreport only (ng/g)all yearBIO
Perfluorononanoic acid (PFNA)daily maximumreport only (ng/g)all yearBIO
Perfluorodecanoic acid (PFDA)daily maximumreport only (ng/g)all yearBIO
Perfluoroundecanoic acid (PFUnA)daily maximumreport only (ng/g)all yearBIO
Perfluorododecanoic acid (PFDoA)daily maximumreport only (ng/g)all yearBIO
Perfluorotridecanoic acid (PFTrDA)daily maximumreport only (ng/g)all yearBIO
Perfluorotetradecanoic acid (PFTeDA)daily maximumreport only (ng/g)all yearBIO
N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)daily maximumreport only (ng/g)all yearBIO
N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)daily maximumreport only (ng/g)all yearBIO
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)daily maximumreport only (ng/g)all yearBIO
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)daily maximumreport only (ng/g)all yearBIO
Perfluorobutanesulfonic acid (PFBS)daily maximumreport only (ng/g)all yearBIO
Perfluorodecanesulfonic acid (PFDS)daily maximumreport only (ng/g)all yearBIO
Perfluoroheptanesulfonic acid (PFHpS)daily maximumreport only (ng/g)all yearBIO
Perfluorohexanesulfonic acid (PFHxS)daily maximumreport only (ng/g)all yearBIO
Perfluorooctanesulfonic acid (PFOS)daily maximumreport only (ng/g)all yearBIO
1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)daily maximumreport only (ng/g)all yearBIO
1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)daily maximumreport only (ng/g)all yearBIO
1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)daily maximumreport only (ng/g)all yearBIO
Perfluoropentanesulfonic acid (PFPeS)daily maximumreport only (ng/g)all yearBIO
Perfluorononanesulfonic acid (PFNS)daily maximumreport only (ng/g)all yearBIO
Hexafluoropropylene oxide dimer acid (HFPO-DA)daily maximumreport only (ng/g)all yearBIO
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)daily maximumreport only (ng/g)all yearBIO
Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA)daily maximumreport only (ng/g)all yearBIO
Perfluorododecanesulfonic acid (PFDoS)daily maximumreport only (ng/g)all yearBIO
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)daily maximumreport only (ng/g)all yearBIO
N-methyl perfluorooctanesulfonamide (NMeFOSA)daily maximumreport only (ng/g)all yearBIO
N-ethyl perfluorooctanesulfonamide (NEtFOSA)daily maximumreport only (ng/g)all yearBIO
PFAS Sumdaily maximumreport only (ng/g)all yearBIO
3-Perfluoropropyl propanoic acid (3:3 FTCA)daily maximumreport only (ng/g)all yearBIO
Perfluoro-3-methoxypropanoic acid (PFMPA)daily maximumreport only (ng/g)all yearBIO
9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)daily maximumreport only (ng/g)all yearBIO
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)daily maximumreport only (ng/g)all yearBIO
3-Perfluoroheptyl propanoic acid (7:3 FTCA)daily maximumreport only (ng/g)all yearBIO
Perfluoro-4-methoxybutanoic acid (PFMBA)daily maximumreport only (ng/g)all yearBIO
2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA)daily maximumreport only (ng/g)all yearBIO
Oxygen, dissolved [DO]monthly average minimum≥ 6 mg/LJan, Feb, Aug, Sep, Oct, Nov, DecC01
Oxygen, dissolved [DO]minimum weekly average≥ 4.5 mg/LJan, Feb, Aug, Sep, Oct, Nov, DecC01
Oxygen, dissolved [DO]minimum weekly average≥ 6.25 mg/LMar–JulC01
Oxygen, dissolved [DO]daily minimum≥ 4 mg/LJan, Feb, Aug, Sep, Oct, Nov, DecC01
Oxygen, dissolved [DO]daily minimum≥ 5 mg/LMar–JulC01
pHminimum≥ 6 SUall yearC01
pHmaximum≤ 9 SUall yearC01
Solids, total suspendedmonthly average≤ 25 mg/Lall yearC01
Solids, total suspendedweekly average≤ 45 mg/Lall yearC01
Solids, total suspendedmonthly average≤ 834 lb/dall yearC01
Solids, total suspendeddaily maximum≤ 1501 lb/dall yearC01
Oil & Greasedaily maximumreport only (mg/L)all yearC01
Oil & Greasedaily maximumreport only (mg/L)all yearC01
Nitrogen, total [as N]daily maximumreport only (mg/L)all yearC01
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LApr, May, Sep, OctC01
Nitrogen, ammonia total [as N]monthly average≤ 1.4 mg/LJun–AugC01
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LMarC01
Nitrogen, ammonia total [as N]daily maximum≤ 3.7 mg/LApr, May, Sep, OctC01
Nitrogen, ammonia total [as N]daily maximum≤ 3.7 mg/LJun–AugC01
Nitrogen, ammonia total [as N]daily maximum≤ 2.7 mg/LJan, Feb, Nov, DecC01
Nitrogen, ammonia total [as N]daily maximum≤ 4.7 mg/LMarC01
Nitrogen, ammonia total [as N]monthly average≤ 50 lb/dApr, May, Sep, OctC01
Nitrogen, ammonia total [as N]monthly average≤ 47 lb/dJun–AugC01
Nitrogen, ammonia total [as N]monthly average≤ 50 lb/dMarC01
Nitrogen, ammonia total [as N]daily maximum≤ 123 lb/dApr, May, Sep, OctC01
Nitrogen, ammonia total [as N]daily maximum≤ 123 lb/dJun–AugC01
Nitrogen, ammonia total [as N]daily maximum≤ 90 lb/dJan, Feb, Nov, DecC01
Nitrogen, ammonia total [as N]daily maximum≤ 157 lb/dMarC01
Nitrogen, ammonia total [as N]weekly average≤ 3.8 mg/LApr, May, Sep, OctC01
Nitrogen, ammonia total [as N]weekly average≤ 3.6 mg/LJun–AugC01
Nitrogen, ammonia total [as N]weekly average≤ 3.8 mg/LMarC01
Nitrogen, ammonia total [as N]weekly average≤ 127 lb/dApr, May, Sep, OctC01
Nitrogen, ammonia total [as N]weekly average≤ 120 lb/dJun–AugC01
Nitrogen, ammonia total [as N]weekly average≤ 127 lb/dMarC01
Phosphorus, total [as P]daily maximumreport only (mg/L)all yearC01
Cyanide, total [as CN]daily maximumreport only (ug/L)all yearC01
Cyanide, total [as CN]daily maximumreport only (ug/L)all yearC01
Cyanide, free [amenable to chlorination]daily maximumreport only (ug/L)all yearC01
Cyanide, free [amenable to chlorination]daily maximumreport only (ug/L)all yearC01
Fluoride, total [as F]daily maximumreport only (mg/L)all yearC01
Fluoride, total [as F]daily maximumreport only (mg/L)all yearC01
Arsenic, total [as As]daily maximumreport only (mg/L)all yearC01
Arsenic, total [as As]daily maximumreport only (mg/L)all yearC01
Barium, total [as Ba]daily maximumreport only (mg/L)all yearC01
Barium, total [as Ba]daily maximumreport only (mg/L)all yearC01
Cadmium, total [as Cd]daily maximumreport only (mg/L)all yearC01
Cadmium, total [as Cd]daily maximumreport only (mg/L)all yearC01
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)all yearC01
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)all yearC01
Chromium, total [as Cr]daily maximumreport only (mg/L)all yearC01
Chromium, total [as Cr]daily maximumreport only (mg/L)all yearC01
Copper, total [as Cu]daily maximumreport only (mg/L)all yearC01
Copper, total [as Cu]daily maximumreport only (mg/L)all yearC01
Iron, total [as Fe]daily maximumreport only (mg/L)all yearC01
Iron, total [as Fe]daily maximumreport only (mg/L)all yearC01
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all yearC01
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all yearC01
Lead, total [as Pb]daily maximumreport only (mg/L)all yearC01
Lead, total [as Pb]daily maximumreport only (mg/L)all yearC01
Manganese, total [as Mn]daily maximumreport only (mg/L)all yearC01
Manganese, total [as Mn]daily maximumreport only (mg/L)all yearC01
Nickel, total [as Ni]daily maximumreport only (mg/L)all yearC01
Nickel, total [as Ni]daily maximumreport only (mg/L)all yearC01
Silver, total [as Ag]daily maximumreport only (mg/L)all yearC01
Silver, total [as Ag]daily maximumreport only (mg/L)all yearC01
Zinc, total [as Zn]daily maximumreport only (mg/L)all yearC01
Zinc, total [as Zn]daily maximumreport only (mg/L)all yearC01
Selenium, total [as Se]daily maximumreport only (mg/L)all yearC01
Selenium, total [as Se]daily maximumreport only (mg/L)all yearC01
Phenolics, total recoverabledaily maximumreport only (mg/L)all yearC01
Phenolics, total recoverabledaily maximumreport only (mg/L)all yearC01
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearC01
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearC01
Chlorine, total residualdaily maximum≤ .038 mg/LJan, Feb, Mar, Apr, Nov, DecC01
Chlorine, total residualdaily maximum≤ .038 mg/LMay–OctC01
Perfluorooctanoic acid (PFOA)daily maximumreport only (ng/L)all yearC01
Perfluorobutanoic acid (PFBA)daily maximumreport only (ng/L)all yearC01
Perfluorooctanesulfonamide (PFOSA)daily maximumreport only (ng/L)all yearC01
Perfluoropentanoic acid (PFPeA)daily maximumreport only (ng/L)all yearC01
Perfluorohexanoic acid (PFHxA)daily maximumreport only (ng/L)all yearC01
Perfluoroheptanoic acid (PFHpA)daily maximumreport only (ng/L)all yearC01
Perfluorononanoic acid (PFNA)daily maximumreport only (ng/L)all yearC01
Perfluorodecanoic acid (PFDA)daily maximumreport only (ng/L)all yearC01
Perfluoroundecanoic acid (PFUnA)daily maximumreport only (ng/L)all yearC01
Perfluorododecanoic acid (PFDoA)daily maximumreport only (ng/L)all yearC01
Perfluorotridecanoic acid (PFTrDA)daily maximumreport only (ng/L)all yearC01
Perfluorotetradecanoic acid (PFTeDA)daily maximumreport only (ng/L)all yearC01
N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)daily maximumreport only (ng/L)all yearC01
N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)daily maximumreport only (ng/L)all yearC01
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)daily maximumreport only (ng/L)all yearC01
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)daily maximumreport only (ng/L)all yearC01
Perfluorobutanesulfonic acid (PFBS)daily maximumreport only (ng/L)all yearC01
Perfluorodecanesulfonic acid (PFDS)daily maximumreport only (ng/L)all yearC01
Perfluoroheptanesulfonic acid (PFHpS)daily maximumreport only (ng/L)all yearC01
Perfluorohexanesulfonic acid (PFHxS)daily maximumreport only (ng/L)all yearC01
Perfluorooctanesulfonic acid (PFOS)daily maximumreport only (ng/L)all yearC01
1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)daily maximumreport only (ng/L)all yearC01
1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)daily maximumreport only (ng/L)all yearC01
1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)daily maximumreport only (ng/L)all yearC01
Perfluoropentanesulfonic acid (PFPeS)daily maximumreport only (ng/L)all yearC01
Perfluorononanesulfonic acid (PFNS)daily maximumreport only (ng/L)all yearC01
Hexafluoropropylene oxide dimer acid (HFPO-DA)daily maximumreport only (ng/L)all yearC01
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)daily maximumreport only (ng/L)all yearC01
Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA)daily maximumreport only (ng/L)all yearC01
Perfluorododecanesulfonic acid (PFDoS)daily maximumreport only (ng/L)all yearC01
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)daily maximumreport only (ng/L)all yearC01
N-methyl perfluorooctanesulfonamide (NMeFOSA)daily maximumreport only (ng/L)all yearC01
N-ethyl perfluorooctanesulfonamide (NEtFOSA)daily maximumreport only (ng/L)all yearC01
Mercury, total [as Hg]daily maximumreport only (ng/L)all yearC01
Mercury, total [as Hg]daily maximumreport only (ng/L)all yearC01
Coliform, fecal generaldaily maximum≤ 400 #/100mLMay–OctC01
BOD, carbonaceous [5 day, 20 C]monthly average≤ 20 mg/Lall yearC01
BOD, carbonaceous [5 day, 20 C]weekly average≤ 40 mg/Lall yearC01
BOD, carbonaceous [5 day, 20 C]monthly average≤ 667 lb/dall yearC01
BOD, carbonaceous [5 day, 20 C]weekly average≤ 1334 lb/dall yearC01
PFAS Sumdaily maximumreport only (ng/L)all yearC01
3-Perfluoropropyl propanoic acid (3:3 FTCA)daily maximumreport only (ng/L)all yearC01
Perfluoro-3-methoxypropanoic acid (PFMPA)daily maximumreport only (ng/L)all yearC01
9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)daily maximumreport only (ng/L)all yearC01
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)daily maximumreport only (ng/L)all yearC01
3-Perfluoroheptyl propanoic acid (7:3 FTCA)daily maximumreport only (ng/L)all yearC01
Perfluoro-4-methoxybutanoic acid (PFMBA)daily maximumreport only (ng/L)all yearC01
2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA)daily maximumreport only (ng/L)all yearC01
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
Perfluorooctanoic acid (PFOA)daily maximumreport only (ng/L)all yearINF
Perfluorobutanoic acid (PFBA)daily maximumreport only (ng/L)all yearINF
Perfluorooctanesulfonamide (PFOSA)daily maximumreport only (ng/L)all yearINF
Perfluoropentanoic acid (PFPeA)daily maximumreport only (ng/L)all yearINF
Perfluorohexanoic acid (PFHxA)daily maximumreport only (ng/L)all yearINF
Perfluoroheptanoic acid (PFHpA)daily maximumreport only (ng/L)all yearINF
Perfluorononanoic acid (PFNA)daily maximumreport only (ng/L)all yearINF
Perfluorodecanoic acid (PFDA)daily maximumreport only (ng/L)all yearINF
Perfluoroundecanoic acid (PFUnA)daily maximumreport only (ng/L)all yearINF
Perfluorododecanoic acid (PFDoA)daily maximumreport only (ng/L)all yearINF
Perfluorotridecanoic acid (PFTrDA)daily maximumreport only (ng/L)all yearINF
Perfluorotetradecanoic acid (PFTeDA)daily maximumreport only (ng/L)all yearINF
N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)daily maximumreport only (ng/L)all yearINF
N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)daily maximumreport only (ng/L)all yearINF
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)daily maximumreport only (ng/L)all yearINF
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)daily maximumreport only (ng/L)all yearINF
Perfluorobutanesulfonic acid (PFBS)daily maximumreport only (ng/L)all yearINF
Perfluorodecanesulfonic acid (PFDS)daily maximumreport only (ng/L)all yearINF
Perfluoroheptanesulfonic acid (PFHpS)daily maximumreport only (ng/L)all yearINF
Perfluorohexanesulfonic acid (PFHxS)daily maximumreport only (ng/L)all yearINF
Perfluorooctanesulfonic acid (PFOS)daily maximumreport only (ng/L)all yearINF
1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)daily maximumreport only (ng/L)all yearINF
1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)daily maximumreport only (ng/L)all yearINF
1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)daily maximumreport only (ng/L)all yearINF
Perfluoropentanesulfonic acid (PFPeS)daily maximumreport only (ng/L)all yearINF
Perfluorononanesulfonic acid (PFNS)daily maximumreport only (ng/L)all yearINF
Hexafluoropropylene oxide dimer acid (HFPO-DA)daily maximumreport only (ng/L)all yearINF
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)daily maximumreport only (ng/L)all yearINF
Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA)daily maximumreport only (ng/L)all yearINF
Perfluorododecanesulfonic acid (PFDoS)daily maximumreport only (ng/L)all yearINF
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)daily maximumreport only (ng/L)all yearINF
N-methyl perfluorooctanesulfonamide (NMeFOSA)daily maximumreport only (ng/L)all yearINF
N-ethyl perfluorooctanesulfonamide (NEtFOSA)daily maximumreport only (ng/L)all yearINF
PFAS Sumdaily maximumreport only (ng/L)all yearINF
3-Perfluoropropyl propanoic acid (3:3 FTCA)daily maximumreport only (ng/L)all yearINF
Perfluoro-3-methoxypropanoic acid (PFMPA)daily maximumreport only (ng/L)all yearINF
9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)daily maximumreport only (ng/L)all yearINF
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)daily maximumreport only (ng/L)all yearINF
3-Perfluoroheptyl propanoic acid (7:3 FTCA)daily maximumreport only (ng/L)all yearINF
Perfluoro-4-methoxybutanoic acid (PFMBA)daily maximumreport only (ng/L)all yearINF
2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA)daily maximumreport only (ng/L)all yearINF

How strict are these limits?

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

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Your permit document is the final word. As JSON: /api/v1/permits/IL0022161 · MCP: https://passage-data.com/mcp