STOCKTON, VILLAGE OF

NPDES permit IL0025267 · Minor POTW · effective, expires 2030-09-30 · 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

0values over a limit
18required values missing, on 1 form(s)
3of 35 forms filed late

Last period with anything received: 2026-07-31.

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 (154)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MO AV MN >= 5.5 mg/L Jan, Feb, Aug, Sep, Oct, Nov, Dec
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 >= 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]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 >= 3.5 mg/L Jan, Feb, Aug, Sep, Oct, Nov, Dec
001Oxygen, dissolved [DO]DAILY MN >= 5 mg/L Mar, Apr, May, Jun, Jul
001Oxygen, dissolved [DO]DAILY MN >= 5 mg/L Mar, Apr, May, Jun, Jul
001pHMINIMUM >= 6 SU all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 12 mg/L all year
001Solids, total suspendedMO AVG <= 12 mg/L all year
001Solids, total suspendedDAILY MX <= 24 mg/L all year
001Solids, total suspendedDAILY MX <= 24 mg/L all year
001Solids, total suspendedMO AVG <= 128 lb/d all year
001Solids, total suspendedMO AVG <= 128 lb/d all year
001Solids, total suspendedDAILY MX <= 255 lb/d all year
001Solids, total suspendedDAILY MX <= 255 lb/d all year
001Oil & GreaseDAILY MX report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 1.8 mg/L Mar
001Nitrogen, ammonia total [as N]MO AVG <= 1.8 mg/L Mar
001Nitrogen, ammonia total [as N]MO AVG <= 1.3 mg/L Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 1.3 mg/L Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 1.3 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]MO AVG <= 1.3 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]MO AVG <= 1.8 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 1.8 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 5.7 mg/L Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 5.7 mg/L Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 3 mg/L Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 3 mg/L Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 3 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 3 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 4.7 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 4.7 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 19 lb/d Mar
001Nitrogen, ammonia total [as N]MO AVG <= 19 lb/d Mar
001Nitrogen, ammonia total [as N]MO AVG <= 14 lb/d Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 14 lb/d Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 14 lb/d Jun, Jul, Aug
001Nitrogen, ammonia total [as N]MO AVG <= 14 lb/d Jun, Jul, Aug
001Nitrogen, ammonia total [as N]MO AVG <= 19 lb/d Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 19 lb/d Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 61 lb/d Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 61 lb/d Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 32 lb/d Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 32 lb/d Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 32 lb/d Jun, Jul, Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 32 lb/d Jun, Jul, Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 50 lb/d Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 50 lb/d Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]WKLY AVG <= 4 mg/L Mar
001Nitrogen, ammonia total [as N]WKLY AVG <= 4 mg/L Mar
001Nitrogen, ammonia total [as N]WKLY AVG <= 43 lb/d Mar
001Nitrogen, ammonia total [as N]WKLY AVG <= 43 lb/d Mar
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]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
001Fluoride, total [as F]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
001Beryllium, total [as Be]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, total [as Cr]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, dissolved [as Fe]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
001Thallium, total [as Tl]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
001Zinc, total [as Zn]DAILY MX report only all year
001Antimony, total [as Sb]DAILY MX report only all year
001Selenium, total [as Se]DAILY 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 plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX 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
001Chlorine, total residualDAILY MX <= .05 mg/L all year
001Mercury, total [as Hg]DAILY MX report only all year
001Coliform, fecal generalDAILY MX report only May, Jun, Jul, Aug, Sep, Oct
001Coliform, fecal generalDAILY MX report only 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]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]DAILY MX <= 20 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 106 lb/d all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 106 lb/d all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 213 lb/d all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 213 lb/d all year
005BOD, 5-day, 20 deg. CDAILY MX report only all year
005Solids, total suspendedDAILY MX report only all year
005Coliform, fecal generalDAILY MX report only all year
005FlowMO TOTAL report only all year
BIOCyanide, total [as CN]DAILY MX report only all year
BIOArsenic, total [as As]DAILY MX report only all year
BIOBarium, total [as Ba]DAILY MX report only all year
BIOBeryllium, total [as Be]DAILY MX report only all year
BIOCadmium, total [as Cd]DAILY MX report only all year
BIOChromium, total [as Cr]DAILY MX report only all year
BIOCopper, total [as Cu]DAILY MX report only all year
BIOIron, total [as Fe]DAILY MX report only all year
BIOLead, total [as Pb]DAILY MX report only all year
BIOManganese, total [as Mn]DAILY MX report only all year
BIOThallium, total [as Tl]DAILY MX report only all year
BIONickel, total [as Ni]DAILY MX report only all year
BIOSilver, total [as Ag]DAILY MX report only all year
BIOZinc, total [as Zn]DAILY MX report only all year
BIOAntimony, total [as Sb]DAILY MX report only all year
BIOSelenium, total [as Se]DAILY MX report only all year
BIOPhenolics, total recoverableDAILY MX report only all year
BIOMercury, total [as Hg]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
INFLOil & GreaseDAILY MX report only all year
INFLCyanide, total [as CN]DAILY MX report only all year
INFLCyanide, free [amenable to chlorination]DAILY MX report only all year
INFLFluoride, total [as F]DAILY MX report only all year
INFLArsenic, total [as As]DAILY MX report only all year
INFLBarium, total [as Ba]DAILY MX report only all year
INFLBeryllium, total [as Be]DAILY MX report only all year
INFLCadmium, total [as Cd]DAILY MX report only all year
INFLChromium, hexavalent [as Cr]DAILY MX report only all year
INFLChromium, total [as Cr]DAILY MX report only all year
INFLCopper, total [as Cu]DAILY MX report only all year
INFLIron, total [as Fe]DAILY MX report only all year
INFLIron, dissolved [as Fe]DAILY MX report only all year
INFLLead, total [as Pb]DAILY MX report only all year
INFLManganese, total [as Mn]DAILY MX report only all year
INFLThallium, total [as Tl]DAILY MX report only all year
INFLNickel, total [as Ni]DAILY MX report only all year
INFLSilver, total [as Ag]DAILY MX report only all year
INFLZinc, total [as Zn]DAILY MX report only all year
INFLAntimony, total [as Sb]DAILY MX report only all year
INFLSelenium, total [as Se]DAILY MX report only all year
INFLPhenolics, total recoverableDAILY MX report only all year
INFLMercury, total [as Hg]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