Air Management Program
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
RoleNameTitleEmailPhone #
Facility Air Permit ContactJohn FrohningSr. Air Quality Permit Program Managerjohnfrohning@microsoft.com5039641517
Facility Air Management ContactDerick WinstonSenior Director of Operationsdwinsto@microsoft.com3125154461
Responsible Corporate OfficialDerick WinstonSenior Director of Operationsdwinsto@microsoft.com3125154461
Facility Billing ContactMatt KilpoProject Manager, Air Qualitymatt.kilpo@stantec.com6125251262
DNR Air Contacts
RolePersonTitleEmailPhone #
Air Stack TesterAndrew SeeberEnvironmental Specialist-Adv 2Andrew.Seeber@wisconsin.gov6085761098
DNR Compliance EngineerSensen LinAir Management Engineer-AdvSensen.Lin@wisconsin.gov4147042343
DNR Facility SupervisorMichael SzaboEnvir Engineer SupervisorMichael.Szabo@wisconsin.gov4142088989
Permits and Permit Applications
 Permit #TypeApp ReceivedApp. Comp.Public NoticeDecision*StatusPermit Writer
Select24-DMM-092Construction06/03/202407/20/202409/19/202411/11/2024ActiveMinkey, David M
Select23-DMM-104Construction08/17/202310/04/202310/07/202311/07/2023ActiveMinkey, David M
Select25230249A-F06FESOP08/18/202609/07/2026  RequestedMinkey, David M
Select26-MIN-096Construction08/18/202609/07/2026  RequestedMinkey, David M
Select24-MIN-238Construction09/27/202410/26/202411/19/202401/10/2025ActiveMinkey, David M
Select25-MIN-113Construction11/11/202512/24/202503/24/202606/12/2026ActiveMinkey, David M
Select25230249A-F05FESOP11/11/202512/24/202503/24/202606/12/2026ActiveMinkey, 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
 FILE NAME:
Dwnld 252302490_Emissions_Inventory_summary_report_2025_2026-03-13.pdf
Industrial Monitoring Data
NO RECORDS FOUND
Wisconsin Department of Natural Resources
101 S. Webster Street PO Box 7921
Madison, WI 53707-7921
Call 1-888-936-7463 (TTY via relay: 711) from 7AM to 10PM
Email Customer Service: CSWEB@wisconsin.gov