Michigan Paving and Materials

NPDES permit MI0004821 · Major NON-POTW · administratively continued, expires 2018-10-01 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2018-10-01 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

12values over a limit

40required values missing, on 10 form(s)

0of 11 forms filed late

Last period with anything received: 2026-07-31. Most often over: Hydrogen sulfide (9), Strontium, total [as Sr] (3).

Reporting

Reports are due about 21 days after each monitoring period ends (the most common figure among MI permits in EPA's filings — check your permit).

Limits in force (6)

Outfall	Parameter	Statistic	Limit	Months
001	Sulfide, dissolved, [as S]	MO AVG	report only	all year
001	Sulfide, dissolved, [as S]	DAILY MX	report only	all year
001	Hydrogen sulfide	MO AVG	<= .36 ug/L	all year
001	Hydrogen sulfide	DAILY MX	<= 6.4 ug/L	all year
001	Hydrogen sulfide	MO AVG	<= .015 lb/d	all year
001	Hydrogen sulfide	DAILY MX	<= .27 lb/d	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