METROPOLITAN WRD OF GREATER CHICAGO

NPDES permit IL0077305 · Minor NON-POTW · effective, expires 2029-04-30 · EPA's file as of 2026-09-19

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

0values over a limit

0required values missing, on 0 form(s)

0of 11 forms filed late

Last period with anything received: 2026-07-31.

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).

Outfall 001, form 0 (NC COOLING WTR AND TURBINE SHAFT SEAL LEAKAGE WTR): every 1 month(s), 3 values

Outfall	Parameter	Statistic	Limit	Months
001	Temperature, water deg. fahrenheit	MO MAX	<= 93 deg F	Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
001	Temperature, water deg. fahrenheit	MO MAX	<= 63 deg F	Jan, Feb, Mar, Dec
001	Oil & Grease	30DA AVG	report only	Jun, Dec
001	Oil & Grease	DAILY MX	report only	Jun, Dec
001	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
001	Flow, in conduit or thru treatment plant	DAILY 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