Clean Water Act discharge permit · NPDES MIS310578

SHAFER REDI-MIX-MASON, Mason, MI: NPDES MIS310578 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

SHAFER REDI-MIX-MASON, held by Shafer Redi-Mix, Incorporated, holds NPDES permit MIS310578. EPA’s file records it issued August 23, 2019 and expiring April 1, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	SHAFER REDI-MIX-MASON
Permittee as filed	Shafer Redi-Mix, Incorporated
NPDES ID	MIS310578
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	August 23, 2019
Expiration date	April 1, 2023
Issuing agency	State
Address	Mason, MI 48854
Subwatershed	Headwaters Sycamore Creek (HUC 040500040506)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

0Pollutants on file
0Under a numeric limit
0With a violation of any kind
0With an effluent exceedance

EPA’s limits and effluent violation files hold no pollutant row for NPDES MIS310578.

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

3Single-event violations

Date	What EPA recorded	Agency
April 23, 2021	WW Storm Water Non-Construction - Failure to develop any or adequate SWPPP/SWMP	ST6
April 23, 2021	Management Practice Violations - Improper Operation and Maintenance	ST6
April 23, 2021	Management Practice Violations - No Licensed/Certified Operator	ST6

Inspections

EPA’s inspection file holds no inspection for NPDES MIS310578.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES MIS310578.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID MIS310578 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

This public-records page covers NPDES permit MIS310578 for SHAFER REDI-MIX-MASON in Mason, MI, held by Shafer Redi-Mix, Incorporated, which is administratively continued and classed as a minor discharger, with an issue date of August 23, 2019 and an expiration date of April 1, 2023. The page lists 0 pollutants on file, 0 under a numeric limit, 0 with a violation of any kind, and 0 with an effluent exceedance, and places the facility in the Headwaters Sycamore Creek subwatershed (HUC 040500040506).