U.S. DEPARTMENT OF ENERGY

NPDES permit IL0026123 · Minor FEDERAL · effective, expires 2030-08-31 · 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

2values over a limit
0required values missing, on 0 form(s)
0of 84 forms filed late

Last period with anything received: 2026-08-31. Most often over: pH (2).

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 (58)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitMO MAX <= 63 deg F Jan, Feb, Mar, Dec
001Temperature, water deg. fahrenheitMO MAX <= 93 deg F Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
001pHMO MIN >= 6.5 SU all year
001pHMO MAX <= 9 SU 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
001Tritium, total30DA AVG report only all year
001Tritium, totalDAILY MX report only all year
002Temperature, water deg. fahrenheitMO MAX <= 63 deg F Jan, Feb, Mar, Dec
002Temperature, water deg. fahrenheitMO MAX <= 93 deg F Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002pHMO MIN >= 6.5 SU all year
002pHMO MAX <= 9 SU all year
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 <= .05 mg/L all year
002Tritium, total30DA AVG report only all year
002Tritium, totalDAILY MX report only all year
003Temperature, water deg. fahrenheitMO MAX <= 63 deg F Jan, Feb, Mar, Dec
003Temperature, water deg. fahrenheitMO MAX <= 93 deg F Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
003pHMO MIN >= 6.5 SU all year
003pHMO MAX <= 9 SU all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003Chlorine, total residualDAILY MX <= .05 mg/L all year
003Tritium, total30DA AVG report only all year
003Tritium, totalDAILY MX report only all year
004Temperature, water deg. fahrenheitMO MAX <= 63 deg F Jan, Feb, Mar, Dec
004Temperature, water deg. fahrenheitMO MAX <= 93 deg F Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
004pHMO MIN >= 6.5 SU all year
004pHMO MAX <= 9 SU all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
004Tritium, total30DA AVG report only all year
004Tritium, totalDAILY MX report only all year
005Temperature, water deg. fahrenheitMO MAX <= 63 deg F Jan, Feb, Mar, Dec
005Temperature, water deg. fahrenheitMO MAX <= 93 deg F Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
005pHMO MIN >= 6.5 SU all year
005pHMO MAX <= 9 SU all year
005Flow, in conduit or thru treatment plantMO AVG report only all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
005Tritium, total30DA AVG report only all year
005Tritium, totalDAILY MX report only all year
006Temperature, water deg. fahrenheitMO MAX <= 63 deg F Jan, Feb, Mar, Dec
006Temperature, water deg. fahrenheitMO MAX <= 93 deg F Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
006pHMO MIN >= 6.5 SU all year
006pHMO MAX <= 9 SU all year
006Flow, in conduit or thru treatment plantMO AVG report only all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
006Tritium, total30DA AVG report only all year
006Tritium, totalDAILY MX report only all year
007Temperature, water deg. fahrenheitMO MAX <= 63 deg F Jan, Feb, Mar, Dec
007Temperature, water deg. fahrenheitMO MAX <= 93 deg F Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
007pHMO MIN >= 6.5 SU all year
007pHMO MAX <= 9 SU all year
007Flow, in conduit or thru treatment plantMO AVG report only all year
007Flow, in conduit or thru treatment plantDAILY MX report only all year
007Tritium, total30DA AVG report only all year
007Tritium, totalDAILY 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