AURORA, CITY OF — NPDES permit IL0048518: limits, due date and EPA's record

NPDES permit IL0048518 · Minor NON-POTW · administratively continued, expires 2026-07-31 · EPA's file as of 2026-09-19

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.

This permit expired on 2026-07-31 and is administratively continued: 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

Last period with anything received: 2026-07-31. Most often over: Coliform, fecal general (1).

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 (24)

Outfall	Parameter	Statistic	Limit	Months
001	Overflows	MO TOTAL	report only	all year
002	Overflows	MO TOTAL	report only	all year
004	Overflows	MO TOTAL	report only	all year
005	Overflows	MO TOTAL	report only	all year
008	Overflows	MO TOTAL	report only	all year
010	Overflows	MO TOTAL	report only	all year
015	Overflows	MO TOTAL	report only	all year
017	Overflows	MO TOTAL	report only	all year
018	Overflows	MO TOTAL	report only	all year
021	Overflows	MO TOTAL	report only	all year
022	Overflows	MO TOTAL	report only	all year
023	Overflows	MO TOTAL	report only	all year
025	Overflows	MO TOTAL	report only	all year
027	BOD, 5-day, 20 deg. C	MO AVG	report only	all year
027	pH	MINIMUM	>= 6 SU	all year
027	pH	MAXIMUM	<= 9 SU	all year
027	Solids, total suspended	MO AVG	report only	all year
027	Nitrogen, ammonia total [as N]	DAILY MX	report only	all year
027	Phosphorus, total [as P]	DAILY MX	report only	all year
027	Chlorine, total residual	MO AVG	<= .75 mg/L	all year
027	Coliform, fecal general	DAILY MX	<= 400 #/100mL	all year
027	Flow, total	MO TOTAL	report only	all year
A03	Overflows	MO TOTAL	report only	all year
A16	Overflows	MO TOTAL	report only	all year