Clean Water Act discharge permit · NPDES MIS420040

DOW SILICONES CORPORATION-MIDLAND SITE, Midland, MI: NPDES MIS420040 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance

DOW SILICONES CORPORATION-MIDLAND SITE, held by Dow Silicones Corporation, holds NPDES permit MIS420040. EPA’s file records it issued October 26, 2022 and expiring April 1, 2024. 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	DOW SILICONES CORPORATION-MIDLAND SITE
Permittee as filed	Dow Silicones Corporation
NPDES ID	MIS420040
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	October 26, 2022
Expiration date	April 1, 2024
Issuing agency	State
Address	Midland, MI 48640
Receiving water impaired	303(D) Listed
Subwatershed	Sarle Drain-Tittabawassee River (HUC 040802010606)
Other EPA IDs (FRS)	RCRA handler MID000809632; ICIS-AIR source MI00000000000A4043

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

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 MIS420040.

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

10Single-event violations

Date	What EPA recorded	Agency
August 29, 2021	WW SSO - Discharge to Waters	ST6
August 29, 2021	Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment	ST6
July 24, 2021	WW SSO - Discharge to Waters	ST6
July 24, 2021	Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment	ST6
July 13, 2021	WW SSO - Discharge to Waters	ST6
July 13, 2021	Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment	ST6
May 18, 2020	WW SSO - Discharge to Waters	ST6
May 18, 2020	Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment	ST6
May 26, 2018	Permit Violations - Discharge Without a Valid Permit	ST6
May 26, 2018	WW Storm Water Non-Construction - Failure to develop any or adequate SWPPP/SWMP	ST6

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

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

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MIS420040.

Start the watch

How we handle your data → Privacy

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 MIS420040 there.

Nearby on the register

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

This public-records page covers Clean Water Act NPDES permit MIS420040 for the DOW SILICONES CORPORATION-MIDLAND SITE in Midland, MI, held by Dow Silicones Corporation, with a status of administratively continued and a discharger class of Minor. The listed figures are 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, and the receiving water sits within HUC 040802010606.