SALT CREEK SANITARY DISTRICT

NPDES permit IL0030953 · Major POTW · effective, expires 2027-02-28 · 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
0required values missing, on 0 form(s)
1of 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 (134)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitMO MAX report only all year
001Oxygen, dissolved [DO]MO AV MN >= 5.5 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 >= 4 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 >= 3.5 mg/L Jan, Feb, Aug, Sep, Oct, Nov, Dec
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Alkalinity, total [as CaCO3]DAILY MX report only all year
001Solids, total suspendedMO AVG <= 12 mg/L all year
001Solids, total suspendedDAILY MX <= 24 mg/L all year
001Solids, total suspendedMO AVG <= 801 lb/d all year
001Solids, total suspendedDAILY MX <= 1601 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 <= 1.5 mg/L Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 1.5 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]MO AVG <= 4 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 8 mg/L Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 3 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 8 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 100 lb/d Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 100 lb/d Jun, Jul, Aug
001Nitrogen, ammonia total [as N]MO AVG <= 267 lb/d Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 534 lb/d Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 200 lb/d Jun, Jul, Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 534 lb/d Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]WKLY AVG <= 3.8 mg/L Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]WKLY AVG <= 254 lb/d Mar, Apr, May, Sep, Oct
001Nitrite + Nitrate total [as N]DAILY MX report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, dissolvedDAILY MX report only 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
001Chloride [as Cl]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]DAILY MX report only all year
001Zinc, total [as Zn]DAILY MX report only all year
001Selenium, total [as Se]DAILY MX report only all year
001Selenium, total [as Se]DAILY MX report only all year
001Coliform, fecal - % samples exceeding limitMAXIMUM <= 10 % May, Jun, Jul, Aug, Sep, Oct
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 <= .038 mg/L all year
001Nitrogen, Kjeldahl TotalDAILY 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 generalGEO MEAN <= 200 #/100mL 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]DAILY MX <= 20 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 667 lb/d all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 1334 lb/d all year
002Temperature, water deg. fahrenheitMO MAX report only all year
002Oxygen, dissolved [DO]MO AV MN >= 5.5 mg/L Jan, Feb, Aug, Sep, Oct, Nov, Dec
002Oxygen, dissolved [DO]MN WK AV >= 4 mg/L Jan, Feb, Aug, Sep, Oct, Nov, Dec
002Oxygen, dissolved [DO]MN WK AV >= 6 mg/L Mar, Apr, May, Jun, Jul
002Oxygen, dissolved [DO]DAILY MN >= 3.5 mg/L Jan, Feb, Aug, Sep, Oct, Nov, Dec
002Oxygen, dissolved [DO]DAILY MN >= 5 mg/L Mar, Apr, May, Jun, Jul
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 9 SU all year
002Alkalinity, total [as CaCO3]DAILY MX report only all year
002Solids, total suspendedMO AVG <= 12 mg/L all year
002Solids, total suspendedDAILY MX <= 24 mg/L all year
002Solids, total suspendedMO AVG <= 801 lb/d all year
002Solids, total suspendedDAILY MX <= 1601 lb/d all year
002Nitrogen, total [as N]DAILY MX report only all year
002Nitrogen, ammonia total [as N]MO AVG <= 1.5 mg/L Mar, Apr, May, Sep, Oct
002Nitrogen, ammonia total [as N]MO AVG <= 1.5 mg/L Jun, Jul, Aug
002Nitrogen, ammonia total [as N]MO AVG <= 4 mg/L Jan, Feb, Nov, Dec
002Nitrogen, ammonia total [as N]DAILY MX <= 8 mg/L Mar, Apr, May, Sep, Oct
002Nitrogen, ammonia total [as N]DAILY MX <= 3 mg/L Jun, Jul, Aug
002Nitrogen, ammonia total [as N]DAILY MX <= 8 mg/L Jan, Feb, Nov, Dec
002Nitrogen, ammonia total [as N]MO AVG <= 100 lb/d Mar, Apr, May, Sep, Oct
002Nitrogen, ammonia total [as N]MO AVG <= 100 lb/d Jun, Jul, Aug
002Nitrogen, ammonia total [as N]MO AVG <= 267 lb/d Jan, Feb, Nov, Dec
002Nitrogen, ammonia total [as N]DAILY MX <= 534 lb/d Mar, Apr, May, Sep, Oct
002Nitrogen, ammonia total [as N]DAILY MX <= 200 lb/d Jun, Jul, Aug
002Nitrogen, ammonia total [as N]DAILY MX <= 534 lb/d Jan, Feb, Nov, Dec
002Nitrogen, ammonia total [as N]WKLY AVG <= 3.8 mg/L Mar, Apr, May, Sep, Oct
002Nitrogen, ammonia total [as N]WKLY AVG <= 254 lb/d Mar, Apr, May, Sep, Oct
002Nitrite + Nitrate total [as N]DAILY MX report only all year
002Phosphorus, total [as P]MO AVG report only all year
002Phosphorus, total [as P]DAILY MX report only all year
002Phosphorus, dissolvedDAILY MX report only all year
002Chloride [as Cl]DAILY MX report only all year
002Coliform, fecal - % samples exceeding limitMAXIMUM <= 10 % May, Jun, Jul, Aug, Sep, Oct
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Chlorine, total residualDAILY MX <= .038 mg/L all year
002Nitrogen, Kjeldahl TotalDAILY MX report only all year
002Coliform, fecal generalGEO MEAN <= 200 #/100mL May, Jun, Jul, Aug, Sep, Oct
002Coliform, fecal generalDAILY MX report only May, Jun, Jul, Aug, Sep, Oct
002BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L all year
002BOD, carbonaceous [5 day, 20 C]DAILY MX <= 20 mg/L all year
002BOD, carbonaceous [5 day, 20 C]MO AVG <= 667 lb/d all year
002BOD, carbonaceous [5 day, 20 C]DAILY MX <= 1334 lb/d all year
INFBOD, 5-day, 20 deg. CMO AVG report only all year
INFSolids, total suspendedMO AVG report only all year
INFNitrogen, total [as N]DAILY MX report only all year
INFPhosphorus, total [as P]DAILY MX 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