DEPARTMENT OF THE ARMY

NPDES permit IL0025933 · Minor FEDERAL · effective, expires 2028-05-31 · 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

0values over a limit
0required values missing, on 0 form(s)
0of 12 forms filed late

Last period with anything received: 2026-08-31.

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 (28)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. C30DA AVG <= 10 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 20 mg/L all year
001BOD, 5-day, 20 deg. C30DA AVG <= 2.09 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 4.17 lb/d all year
001pHMO MIN >= 6.5 SU all year
001pHMO MAX <= 9 SU all year
001Solids, total suspended30DA AVG <= 12 mg/L all year
001Solids, total suspendedDAILY MX <= 24 mg/L all year
001Solids, total suspended30DA AVG <= 2.5 lb/d all year
001Solids, total suspendedDAILY MX <= 5 lb/d all year
001Nitrogen, ammonia total [as N]30DA AVG <= 3.9 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]30DA AVG <= 1.5 mg/L Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]30DA AVG <= .9 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 5.2 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 6 mg/L Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 3.7 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]30DA AVG <= .81 lb/d Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]30DA AVG <= .31 lb/d Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]30DA AVG <= .19 lb/d Jun, Jul, Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 1.08 lb/d Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 1.25 lb/d Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= .77 lb/d Jun, Jul, Aug
001Phosphorus, total [as P]DAILY MX <= 1 mg/L all year
001Phosphorus, total [as P]DAILY MX <= .21 lb/d 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
001Coliform, fecal generalDAILY MX <= 400 #/100mL 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