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NPDES permit IL0059625 · Minor NON-POTW · expired, expires 2025-04-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2025-04-30 and is expired: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

0values over a limit
0required values missing, on 0 form(s)
1of 11 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 (37)

OutfallParameterStatisticLimitMonths
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
001pHMO MIN >= 6 SU all year
001pHMO MAX <= 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 <= .01 lb/d all year
001Solids, total suspendedDAILY MX <= .02 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG <= 1.8 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]MO AVG <= 4 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 2.4 mg/L Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 15 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 6.7 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 14.4 mg/L Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= .002 lb/d Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= .0015 lb/d Jun, Jul, Aug
001Nitrogen, ammonia total [as N]MO AVG <= .0033 lb/d Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= .012 lb/d Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= .0125 lb/d Jun, Jul, Aug
001Nitrogen, ammonia total [as N]DAILY MX <= .0056 lb/d Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]WKLY AVG <= 4.5 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]WKLY AVG <= 6.7 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]WKLY AVG <= 6 mg/L Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]WKLY AVG <= .005 lb/d Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]WKLY AVG <= .0038 lb/d Jun, Jul, Aug
001Nitrogen, ammonia total [as N]WKLY AVG <= .0056 lb/d Jan, Feb, Nov, Dec
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
001Coliform, fecal generalDAILY MX <= 400 #/100mL 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]MO AVG <= .01 lb/d all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= .02 lb/d 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