Permit Tracking

Facility Information for 252302490 Microsoft Mount Pleasant Data Centers

Location Address
4800 90th ST Mount Pleasant WI 53403	Start Date: End Date:
Primary Activity:

Site Description:

Major Under PSD: ☐

Major Under Part 70: ☐

Major NAA: ☐

Monitoring with CEMS: ☐

Major for Federal Haps: ☐

Synthetic Minor Under Title V: ☑

Natural Minor: ☐

Exempt from Permiting: ☐

Private Coal EGU: ☐

Portable: ☐

SIC

NAICS

Nonattainment Status: Moderate Ozone

Facility Contacts

Role	Name	Title	Email	Phone #
Library	Racine Public Library
Facility Air Permit Contact	John Frohning	Sr. Air Quality Permit Program Manager	johnfrohning@microsoft.com	5039641517
Facility Air Management Contact	Derick Winston	Senior Director of Operations	dwinsto@microsoft.com	3125154461
Facility Billing Contact	Derick Winston	Senior Director of Operations	dwinsto@microsoft.com	3125154461
Responsible Corporate Official	Derick Winston	Senior Director of Operations	dwinsto@microsoft.com	3125154461

DNR Air Contacts

Role	Person	Title	Email	Phone #
Air Stack Tester	Andrew Seeber	Environmental Specialist-Adv 2	Andrew.Seeber@wisconsin.gov	6085761098
DNR Compliance Engineer	Sensen Lin	Air Management Engineer-Adv	Sensen.Lin@wisconsin.gov	4147042343
DNR Facility Supervisor	Michael Szabo	Envir Engineer Supervisor	Michael.Szabo@wisconsin.gov	4142088989

Permits and Permit Applications

Show Inactive Permits

	Permit #	Type	App Received	App. Comp.	Public Notice	Decision*	Status	Permit Writer
Select	24-DMM-092	Construction	06/03/2024	07/20/2024	09/19/2024	11/11/2024	Active	Minkey, David M
Select	23-DMM-104	Construction	08/17/2023	10/04/2023	10/07/2023	11/07/2023	Active	Minkey, David M
Select	25230249A-F04	FESOP	09/11/2025	10/01/2025			Requested	-1
Select	25230249A-F03	FESOP	09/20/2024	10/10/2024	11/19/2024	01/10/2025	Active	Minkey, David M
Select	24-MIN-238	Construction	09/27/2024	10/26/2024	11/19/2024	01/10/2025	Active	Minkey, David M
Select	25-MIN-113	Construction	11/11/2025	12/24/2025	03/24/2026		Requested	Minkey, David M
Select	25230249A-F05	FESOP	11/11/2025	12/24/2025	03/24/2026		Requested	Minkey, David M

*Note: “Decision” could mean permit issuance date, permit denial date, registration or general permit coverage granted date, exemption approval date, consent order issuance date, or administrative order issuance date. If “X” is shown here (instead of a date), it means the Department acknowledged the notice of intent to construct and/or operate certain air emission unit(s) but the Department does not intend to evaluate the exemption claim. Please click “Select” next to the permit # for details on the submittal and decision documents.

Select a Permit to see related Documents and Milestones.

Emission Inventory Reports

NO RECORDS FOUND

Industrial Monitoring Data

NO RECORDS FOUND