MARION, CITY OF

NPDES permit IL0029734 · Major POTW · effective, expires 2030-10-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

EPA's record, 2025-09-01 to 2026-08-31

1values over a limit
0required values missing, on 0 form(s)
0of 41 forms filed late

Last period with anything received: 2026-08-31. Most often over: Phosphorus, total [as P] (1).

Reporting

Reports are due about 25 days after each monitoring period ends (the most common figure among IL permits in EPA's filings — check your permit).

Limits in force (216)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MO AV MN >= 5.5 mg/L Jan, Feb, Aug, Sep, Oct, Nov, Dec
001Oxygen, dissolved [DO]MN WK AV >= 4 mg/L Jan, Feb, Aug, Sep, Oct, Nov, Dec
001Oxygen, dissolved [DO]MN WK AV >= 6 mg/L Mar, Apr, May, Jun, Jul
001Oxygen, dissolved [DO]DAILY MN >= 3.5 mg/L Jan, Feb, Aug, Sep, Oct, Nov, Dec
001Oxygen, dissolved [DO]DAILY MN >= 5 mg/L Mar, Apr, May, Jun, Jul
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 12 mg/L all year
001Solids, total suspendedDAILY MX <= 24 mg/L all year
001Solids, total suspendedMO AVG <= 1081 lb/d all year
001Solids, total suspendedDAILY MX <= 2162 lb/d all year
001Oil & GreaseDAILY MX report only all year
001Oil & GreaseDAILY MX report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 4 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 2.6 mg/L Mar
001Nitrogen, ammonia total [as N]MO AVG <= 1.5 mg/L Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 1.5 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 6.4 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 15 mg/L Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 15 mg/L Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 15 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]MO AVG <= 360 lb/d Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 234 lb/d Mar
001Nitrogen, ammonia total [as N]MO AVG <= 135 lb/d Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 135 lb/d Jun, Jul, Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 576 lb/d Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 1351 lb/d Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 1351 lb/d Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 1351 lb/d Jun, Jul, Aug
001Nitrogen, ammonia total [as N]WKLY AVG <= 6 mg/L Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]WKLY AVG <= 4.5 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]WKLY AVG <= 6.5 mg/L Mar
001Nitrogen, ammonia total [as N]WKLY AVG <= 540 lb/d Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]WKLY AVG <= 405 lb/d Jun, Jul, Aug
001Nitrogen, ammonia total [as N]WKLY AVG <= 585 lb/d Mar
001Phosphorus, total [as P]MO AVG <= 1 mg/L all year
001Phosphorus, total [as P]DAILY MX <= 2 mg/L all year
001Phosphorus, total [as P]MO AVG <= 90 lb/d all year
001Phosphorus, total [as P]DAILY MX <= 180 lb/d all year
001Cyanide, total [as CN]DAILY MX report only all year
001Cyanide, total [as CN]DAILY MX report only all year
001Cyanide, free [amenable to chlorination]DAILY MX report only all year
001Cyanide, free [amenable to chlorination]DAILY MX report only all year
001Fluoride, total [as F]DAILY MX report only all year
001Fluoride, total [as F]DAILY MX report only all year
001Arsenic, total [as As]DAILY MX report only all year
001Arsenic, total [as As]DAILY MX report only all year
001Barium, total [as Ba]DAILY MX report only all year
001Barium, total [as Ba]DAILY MX report only all year
001Cadmium, total [as Cd]DAILY MX report only all year
001Cadmium, total [as Cd]DAILY MX report only all year
001Chromium, hexavalent [as Cr]DAILY MX report only all year
001Chromium, hexavalent [as Cr]DAILY MX report only all year
001Chromium, total [as Cr]DAILY MX report only all year
001Chromium, total [as Cr]DAILY MX report only all year
001Copper, total [as Cu]DAILY MX report only all year
001Copper, total [as Cu]DAILY MX report only all year
001Iron, total [as Fe]DAILY MX report only all year
001Iron, total [as Fe]DAILY MX report only all year
001Iron, dissolved [as Fe]DAILY MX report only all year
001Iron, dissolved [as Fe]DAILY MX report only all year
001Lead, total [as Pb]DAILY MX report only all year
001Lead, total [as Pb]DAILY MX report only all year
001Manganese, total [as Mn]DAILY MX report only all year
001Manganese, total [as Mn]DAILY MX report only all year
001Nickel, total [as Ni]DAILY MX report only all year
001Nickel, total [as Ni]DAILY MX report only all year
001Silver, total [as Ag]DAILY MX report only all year
001Silver, total [as Ag]DAILY MX report only all year
001Zinc, total [as Zn]MO AVG <= .0367 mg/L all year
001Zinc, total [as Zn]DAILY MX report only all year
001Zinc, total [as Zn]DAILY MX report only all year
001Zinc, total [as Zn]MO AVG <= 3.31 lb/d all year
001Selenium, total [as Se]DAILY MX report only all year
001Selenium, total [as Se]DAILY MX report only all year
001Phenolics, total recoverableDAILY MX report only all year
001Phenolics, total recoverableDAILY MX report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualDAILY MX <= .05 mg/L all year
001Perfluorooctanoic acid (PFOA)DAILY MX report only all year
001Perfluorobutanoic acid (PFBA)DAILY MX report only all year
001Perfluorooctanesulfonamide (PFOSA)DAILY MX report only all year
001Perfluoropentanoic acid (PFPeA)DAILY MX report only all year
001Perfluorohexanoic acid (PFHxA)DAILY MX report only all year
001Perfluoroheptanoic acid (PFHpA)DAILY MX report only all year
001Perfluorononanoic acid (PFNA)DAILY MX report only all year
001Perfluorodecanoic acid (PFDA)DAILY MX report only all year
001Perfluoroundecanoic acid (PFUnA)DAILY MX report only all year
001Perfluorododecanoic acid (PFDoA)DAILY MX report only all year
001Perfluorotridecanoic acid (PFTrDA)DAILY MX report only all year
001Perfluorotetradecanoic acid (PFTeDA)DAILY MX report only all year
001N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)DAILY MX report only all year
001N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)DAILY MX report only all year
001N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)DAILY MX report only all year
001N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)DAILY MX report only all year
001Perfluorobutanesulfonic acid (PFBS)DAILY MX report only all year
001Perfluorodecanesulfonic acid (PFDS)DAILY MX report only all year
001Perfluoroheptanesulfonic acid (PFHpS)DAILY MX report only all year
001Perfluorohexanesulfonic acid (PFHxS)DAILY MX report only all year
001Perfluorooctanesulfonic acid (PFOS)DAILY MX report only all year
0011H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)DAILY MX report only all year
0011H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)DAILY MX report only all year
0011H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)DAILY MX report only all year
001Perfluoropentanesulfonic acid (PFPeS)DAILY MX report only all year
001Perfluorononanesulfonic acid (PFNS)DAILY MX report only all year
001Hexafluoropropylene oxide dimer acid (HFPO-DA)DAILY MX report only all year
001Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)DAILY MX report only all year
001Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA)DAILY MX report only all year
001Perfluorododecanesulfonic acid (PFDoS)DAILY MX report only all year
0014,8-Dioxa-3H-perfluorononanoic acid (ADONA)DAILY MX report only all year
001N-methyl perfluorooctanesulfonamide (NMeFOSA)DAILY MX report only all year
001N-ethyl perfluorooctanesulfonamide (NEtFOSA)DAILY MX report only all year
001Mercury, total [as Hg]DAILY MX report only all year
001Mercury, total [as Hg]DAILY MX report only all year
001Coliform, fecal generalDAILY MX <= 400 #/100mL May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 20 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 901 lb/d all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 1801 lb/d all year
0013-Perfluoropropyl propanoic acid (3:3 FTCA)DAILY MX report only all year
001Perfluoro-3-methoxypropanoic acid (PFMPA)DAILY MX report only all year
0019-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)DAILY MX report only all year
00111-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)DAILY MX report only all year
0013-Perfluoroheptyl propanoic acid (7:3 FTCA)DAILY MX report only all year
001Perfluoro-4-methoxybutanoic acid (PFMBA)DAILY MX report only all year
0012H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA)DAILY MX report only all year
002BOD, 5-day, 20 deg. CDAILY MX report only all year
002Solids, total suspendedDAILY MX report only all year
002Coliform, fecal generalDAILY MX report only all year
002FlowMO TOTAL report only all year
BIOPerfluorooctanoic acid (PFOA)DAILY MX report only all year
BIOPerfluorobutanoic acid (PFBA)DAILY MX report only all year
BIOPerfluorooctanesulfonamide (PFOSA)DAILY MX report only all year
BIOPerfluoropentanoic acid (PFPeA)DAILY MX report only all year
BIOPerfluorohexanoic acid (PFHxA)DAILY MX report only all year
BIOPerfluoroheptanoic acid (PFHpA)DAILY MX report only all year
BIOPerfluorononanoic acid (PFNA)DAILY MX report only all year
BIOPerfluorodecanoic acid (PFDA)DAILY MX report only all year
BIOPerfluoroundecanoic acid (PFUnA)DAILY MX report only all year
BIOPerfluorododecanoic acid (PFDoA)DAILY MX report only all year
BIOPerfluorotridecanoic acid (PFTrDA)DAILY MX report only all year
BIOPerfluorotetradecanoic acid (PFTeDA)DAILY MX report only all year
BION-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)DAILY MX report only all year
BION-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)DAILY MX report only all year
BION-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)DAILY MX report only all year
BION-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)DAILY MX report only all year
BIOPerfluorobutanesulfonic acid (PFBS)DAILY MX report only all year
BIOPerfluorodecanesulfonic acid (PFDS)DAILY MX report only all year
BIOPerfluoroheptanesulfonic acid (PFHpS)DAILY MX report only all year
BIOPerfluorohexanesulfonic acid (PFHxS)DAILY MX report only all year
BIOPerfluorooctanesulfonic acid (PFOS)DAILY MX report only all year
BIO1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)DAILY MX report only all year
BIO1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)DAILY MX report only all year
BIO1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)DAILY MX report only all year
BIOPerfluoropentanesulfonic acid (PFPeS)DAILY MX report only all year
BIOPerfluorononanesulfonic acid (PFNS)DAILY MX report only all year
BIOHexafluoropropylene oxide dimer acid (HFPO-DA)DAILY MX report only all year
BIONonafluoro-3,6-dioxaheptanoic acid (NFDHA)DAILY MX report only all year
BIOPerfluoro(2-ethoxyethane)sulfonic acid (PFEESA)DAILY MX report only all year
BIOPerfluorododecanesulfonic acid (PFDoS)DAILY MX report only all year
BIO4,8-Dioxa-3H-perfluorononanoic acid (ADONA)DAILY MX report only all year
BION-methyl perfluorooctanesulfonamide (NMeFOSA)DAILY MX report only all year
BION-ethyl perfluorooctanesulfonamide (NEtFOSA)DAILY MX report only all year
BIO3-Perfluoropropyl propanoic acid (3:3 FTCA)DAILY MX report only all year
BIOPerfluoro-3-methoxypropanoic acid (PFMPA)DAILY MX report only all year
BIO9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)DAILY MX report only all year
BIO11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)DAILY MX report only all year
BIO3-Perfluoroheptyl propanoic acid (7:3 FTCA)DAILY MX report only all year
BIOPerfluoro-4-methoxybutanoic acid (PFMBA)DAILY MX report only all year
BIO2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA)DAILY MX report only all year
INFBOD, 5-day, 20 deg. CMO AVG report only all year
INFSolids, total suspendedMO AVG report only all year
INFFlow, in conduit or thru treatment plantMO AVG report only all year
INFFlow, in conduit or thru treatment plantDAILY MX report only all year
INFPerfluorooctanoic acid (PFOA)DAILY MX report only all year
INFPerfluorobutanoic acid (PFBA)DAILY MX report only all year
INFPerfluorooctanesulfonamide (PFOSA)DAILY MX report only all year
INFPerfluoropentanoic acid (PFPeA)DAILY MX report only all year
INFPerfluorohexanoic acid (PFHxA)DAILY MX report only all year
INFPerfluoroheptanoic acid (PFHpA)DAILY MX report only all year
INFPerfluorononanoic acid (PFNA)DAILY MX report only all year
INFPerfluorodecanoic acid (PFDA)DAILY MX report only all year
INFPerfluoroundecanoic acid (PFUnA)DAILY MX report only all year
INFPerfluorododecanoic acid (PFDoA)DAILY MX report only all year
INFPerfluorotridecanoic acid (PFTrDA)DAILY MX report only all year
INFPerfluorotetradecanoic acid (PFTeDA)DAILY MX report only all year
INFN-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)DAILY MX report only all year
INFN-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)DAILY MX report only all year
INFN-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)DAILY MX report only all year
INFN-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)DAILY MX report only all year
INFPerfluorobutanesulfonic acid (PFBS)DAILY MX report only all year
INFPerfluorodecanesulfonic acid (PFDS)DAILY MX report only all year
INFPerfluoroheptanesulfonic acid (PFHpS)DAILY MX report only all year
INFPerfluorohexanesulfonic acid (PFHxS)DAILY MX report only all year
INFPerfluorooctanesulfonic acid (PFOS)DAILY MX report only all year
INF1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)DAILY MX report only all year
INF1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)DAILY MX report only all year
INF1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)DAILY MX report only all year
INFPerfluoropentanesulfonic acid (PFPeS)DAILY MX report only all year
INFPerfluorononanesulfonic acid (PFNS)DAILY MX report only all year
INFHexafluoropropylene oxide dimer acid (HFPO-DA)DAILY MX report only all year
INFNonafluoro-3,6-dioxaheptanoic acid (NFDHA)DAILY MX report only all year
INFPerfluoro(2-ethoxyethane)sulfonic acid (PFEESA)DAILY MX report only all year
INFPerfluorododecanesulfonic acid (PFDoS)DAILY MX report only all year
INF4,8-Dioxa-3H-perfluorononanoic acid (ADONA)DAILY MX report only all year
INFN-methyl perfluorooctanesulfonamide (NMeFOSA)DAILY MX report only all year
INFN-ethyl perfluorooctanesulfonamide (NEtFOSA)DAILY MX report only all year
INF3-Perfluoropropyl propanoic acid (3:3 FTCA)DAILY MX report only all year
INFPerfluoro-3-methoxypropanoic acid (PFMPA)DAILY MX report only all year
INF9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)DAILY MX report only all year
INF11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)DAILY MX report only all year
INF3-Perfluoroheptyl propanoic acid (7:3 FTCA)DAILY MX report only all year
INFPerfluoro-4-methoxybutanoic acid (PFMBA)DAILY MX report only all year
INF2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA)DAILY MX report only all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states