AURORA, CITY OF

NPDES permit IL0067555 · Minor NON-POTW · effective, expires 2029-07-31 · 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 24 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 (12)

OutfallParameterStatisticLimitMonths
A01pHMO MIN >= 6 SU all year
A01pHMO MAX <= 10 SU all year
A01Solids, total suspended30DA AVG <= 15 mg/L all year
A01Solids, total suspendedDAILY MX <= 30 mg/L all year
A01Flow, in conduit or thru treatment plantMO AVG report only all year
A01Flow, in conduit or thru treatment plantDAILY MX report only all year
A01Chlorine, total residualDAILY MX <= .05 mg/L all year
B01pHMO MIN >= 6 SU all year
B01pHMO MAX <= 10 SU all year
B01Flow, in conduit or thru treatment plantMO AVG report only all year
B01Flow, in conduit or thru treatment plantDAILY MX report only all year
B01Chlorine, total residualDAILY MX <= .05 mg/L 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