CARLINVILLE, CITY OF

NPDES permit IL0022675 · Major POTW · effective, expires 2027-06-30 · EPA's file as of 2026-09-19

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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

38values over a limit
0required values missing, on 0 form(s)
0of 62 forms filed late

Last period with anything received: 2026-08-31. Most often over: Mercury, total [as Hg] (11), BOD, carbonaceous [5 day, 20 C] (9), BOD, 5-day, 20 deg. C (6).

Reporting

Reports are due about 25 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (136)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MO AV MN report only all year
001Oxygen, dissolved [DO]MN WK AV report only all year
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedWKLY AVG <= 45 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG report only Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG report only Jun, Jul, Aug
001Nitrogen, ammonia total [as N]MO AVG report only Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 9.8 mg/L Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 10.7 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 4.9 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG report only Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG report only Jun, Jul, Aug
001Nitrogen, ammonia total [as N]MO AVG report only Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 306 lb/d Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 335 lb/d Jun, Jul, Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 153 lb/d Jan, Feb, Nov, Dec
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Chlorine, total residualDAILY MX <= .75 mg/L all year
001Flow, totalMO TOTAL report only all year
002OverflowsMO TOTAL report only all year
A01BOD, 5-day, 20 deg. CMO AVG report only all year
A01pHMINIMUM >= 6 SU all year
A01pHMAXIMUM <= 9 SU all year
A01Solids, total suspendedMO AVG report only all year
A01Nitrogen, ammonia total [as N]MO AVG report only all year
A01Nitrogen, ammonia total [as N]DAILY MX report only all year
A01Phosphorus, total [as P]MO AVG report only all year
A01Phosphorus, total [as P]DAILY MX report only all year
A01Coliform, fecal generalDAILY MX <= 400 #/100mL all year
A01Flow, totalMO TOTAL report only all year
B01Oxygen, dissolved [DO]MO AV MN >= 5.5 mg/L Jan, Feb, Aug, Sep, Oct, Nov, Dec
B01Oxygen, dissolved [DO]MN WK AV >= 4 mg/L Jan, Feb, Aug, Sep, Oct, Nov, Dec
B01Oxygen, dissolved [DO]MN WK AV >= 6 mg/L Mar, Apr, May, Jun, Jul
B01Oxygen, dissolved [DO]DAILY MN >= 3.5 mg/L Jan, Feb, Aug, Sep, Oct, Nov, Dec
B01Oxygen, dissolved [DO]DAILY MN >= 5 mg/L Mar, Apr, May, Jun, Jul
B01pHMINIMUM >= 6 SU all year
B01pHMAXIMUM <= 9 SU all year
B01Solids, total suspendedMO AVG <= 12 mg/L all year
B01Solids, total suspendedDAILY MX <= 24 mg/L all year
B01Solids, total suspendedMO AVG <= 375 lb/d all year
B01Solids, total suspendedDAILY MX <= 751 lb/d all year
B01Oil & GreaseDAILY MX report only all year
B01Oil & GreaseDAILY MX report only all year
B01Nitrogen, total [as N]DAILY MX report only all year
B01Nitrogen, ammonia total [as N]MO AVG <= 2 mg/L Mar
B01Nitrogen, ammonia total [as N]MO AVG <= 4 mg/L Jan, Feb, Nov, Dec
B01Nitrogen, ammonia total [as N]MO AVG <= 1.5 mg/L Apr, May, Sep, Oct
B01Nitrogen, ammonia total [as N]MO AVG <= 1.5 mg/L Jun, Jul, Aug
B01Nitrogen, ammonia total [as N]DAILY MX <= 9.6 mg/L Mar
B01Nitrogen, ammonia total [as N]DAILY MX <= 4.9 mg/L Jan, Feb, Nov, Dec
B01Nitrogen, ammonia total [as N]DAILY MX <= 9.6 mg/L Apr, May, Sep, Oct
B01Nitrogen, ammonia total [as N]DAILY MX <= 10.7 mg/L Jun, Jul, Aug
B01Nitrogen, ammonia total [as N]MO AVG <= 63 lb/d Mar
B01Nitrogen, ammonia total [as N]MO AVG <= 125 lb/d Jan, Feb, Nov, Dec
B01Nitrogen, ammonia total [as N]MO AVG <= 47 lb/d Apr, May, Sep, Oct
B01Nitrogen, ammonia total [as N]MO AVG <= 47 lb/d Jun, Jul, Aug
B01Nitrogen, ammonia total [as N]DAILY MX <= 300 lb/d Mar
B01Nitrogen, ammonia total [as N]DAILY MX <= 153 lb/d Jan, Feb, Nov, Dec
B01Nitrogen, ammonia total [as N]DAILY MX <= 300 lb/d Apr, May, Sep, Oct
B01Nitrogen, ammonia total [as N]DAILY MX <= 335 lb/d Jun, Jul, Aug
B01Nitrogen, ammonia total [as N]WKLY AVG <= 4.9 mg/L Apr, May, Sep, Oct
B01Nitrogen, ammonia total [as N]WKLY AVG <= 3.8 mg/L Jun, Jul, Aug
B01Nitrogen, ammonia total [as N]WKLY AVG <= 4.9 mg/L Mar
B01Nitrogen, ammonia total [as N]WKLY AVG <= 153 lb/d Apr, May, Sep, Oct
B01Nitrogen, ammonia total [as N]WKLY AVG <= 119 lb/d Jun, Jul, Aug
B01Nitrogen, ammonia total [as N]WKLY AVG <= 153 lb/d Mar
B01Phosphorus, total [as P]DAILY MX report only all year
B01Cyanide, total [as CN]DAILY MX report only all year
B01Cyanide, total [as CN]DAILY MX report only all year
B01Cyanide, free [amenable to chlorination]DAILY MX report only all year
B01Cyanide, free [amenable to chlorination]DAILY MX report only all year
B01Fluoride, total [as F]DAILY MX report only all year
B01Fluoride, total [as F]DAILY MX report only all year
B01Arsenic, total [as As]DAILY MX report only all year
B01Arsenic, total [as As]DAILY MX report only all year
B01Barium, total [as Ba]DAILY MX report only all year
B01Barium, total [as Ba]DAILY MX report only all year
B01Cadmium, total [as Cd]DAILY MX report only all year
B01Cadmium, total [as Cd]DAILY MX report only all year
B01Chromium, hexavalent [as Cr]MO AVG <= .011 mg/L all year
B01Chromium, hexavalent [as Cr]DAILY MX <= .016 mg/L all year
B01Chromium, hexavalent [as Cr]DAILY MX report only all year
B01Chromium, hexavalent [as Cr]DAILY MX report only all year
B01Chromium, hexavalent [as Cr]MO AVG <= .34 lb/d all year
B01Chromium, hexavalent [as Cr]DAILY MX <= .5 lb/d all year
B01Chromium, total [as Cr]DAILY MX report only all year
B01Chromium, total [as Cr]DAILY MX report only all year
B01Copper, total [as Cu]MO AVG <= .0222 mg/L all year
B01Copper, total [as Cu]DAILY MX <= .0355 mg/L all year
B01Copper, total [as Cu]DAILY MX report only all year
B01Copper, total [as Cu]DAILY MX report only all year
B01Copper, total [as Cu]MO AVG <= .69 lb/d all year
B01Copper, total [as Cu]DAILY MX <= 1.11 lb/d all year
B01Iron, total [as Fe]DAILY MX report only all year
B01Iron, total [as Fe]DAILY MX report only all year
B01Iron, dissolved [as Fe]DAILY MX report only all year
B01Iron, dissolved [as Fe]DAILY MX report only all year
B01Lead, total [as Pb]DAILY MX report only all year
B01Lead, total [as Pb]DAILY MX report only all year
B01Manganese, total [as Mn]DAILY MX report only all year
B01Manganese, total [as Mn]DAILY MX report only all year
B01Nickel, total [as Ni]DAILY MX report only all year
B01Nickel, total [as Ni]DAILY MX report only all year
B01Silver, total [as Ag]DAILY MX report only all year
B01Silver, total [as Ag]DAILY MX report only all year
B01Zinc, total [as Zn]MO AVG <= .0592 mg/L all year
B01Zinc, total [as Zn]DAILY MX report only all year
B01Zinc, total [as Zn]DAILY MX report only all year
B01Zinc, total [as Zn]DAILY MX report only all year
B01Zinc, total [as Zn]MO AVG <= 1.85 lb/d all year
B01Zinc, total [as Zn]DAILY MX report only all year
B01Selenium, total [as Se]DAILY MX report only all year
B01Selenium, total [as Se]DAILY MX report only all year
B01Phenolics, total recoverableDAILY MX report only all year
B01Phenolics, total recoverableDAILY MX report only all year
B01Flow, in conduit or thru treatment plantMO AVG report only all year
B01Flow, in conduit or thru treatment plantDAILY MX report only all year
B01Chlorine, total residualDAILY MX <= .038 mg/L all year
B01Mercury, total [as Hg]MO AVG report only all year
B01Mercury, total [as Hg]ANNL AVG <= 12 ng/L all year
B01Mercury, total [as Hg]DAILY MX report only all year
B01Mercury, total [as Hg]DAILY MX report only all year
B01Coliform, fecal generalDAILY MX report only May, Jun, Jul, Aug, Sep, Oct
B01BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L all year
B01BOD, carbonaceous [5 day, 20 C]DAILY MX <= 20 mg/L all year
B01BOD, carbonaceous [5 day, 20 C]MO AVG <= 313 lb/d all year
B01BOD, carbonaceous [5 day, 20 C]DAILY MX <= 626 lb/d 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

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