ICIS-AIR IL000031807AAN

MICROSOFT CORP-CHICAGO DATA CENTER, Northlake, IL: Clean Air Act compliance record, inspections, violations, penalties

OperatingOperating status
Minor sourceEmissions classification
No Violation IdentifiedCurrent violation status, as filed
1Compliance evaluations since January 1, 2017
0High-priority violations since January 1, 2017
0Formal enforcement actions since January 1, 2017

MICROSOFT CORP-CHICAGO DATA CENTER is on EPA’s ICIS-AIR register at 601 NORTHWEST AVE, Northlake in Cook County, Illinois: operating status operating, emissions classification minor source, current violation status “No Violation Identified”. Cook County is on EPA’s Green Book list of areas that do not meet a national air quality standard.

Identity

Facility as filed	MICROSOFT CORP-CHICAGO DATA CENTER
ICIS-AIR ID	IL000031807AAN
EPA facility registry ID	110038439785
Operating status	Operating
Emissions classification	Minor source
Current violation status (HPV field)	No Violation Identified
Address	601 NORTHWEST AVE, Northlake, IL 60164-1301
County	Cook County
In a nonattainment county	Yes (EPA Green Book)
Industry (NAICS)	Professional, scientific and technical services (NAICS 5415)
SIC code	7376
EPA region	05

Programs and pollutants

The program, pollutant and Title V files are not loaded: what this page covers.

Compliance evaluations

1Evaluations since January 1, 2017
1Full compliance evaluations

Date	What EPA recorded	Agency	Programs
February 17, 2026	FCE On-Site	State	State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards

Violations

0Violation determinations since January 1, 2017
0Of them high-priority

What high-priority and federally reportable violations mean.

EPA’s violation history file holds no violation for ICIS-AIR IL000031807AAN since January 1, 2017.

Enforcement and penalties

0 of the formal enforcement actions carry a penalty filed above zero. How a penalty is shown.

Informal enforcement

EPA’s informal action file holds no notice or warning for ICIS-AIR IL000031807AAN since January 1, 2017.

Stack tests

0Stack tests since January 1, 2017
0Recorded as failed

EPA’s stack test file holds no test at ICIS-AIR IL000031807AAN since January 1, 2017.

Watch MICROSOFT CORP-CHICAGO DATA CENTER

Privacy

Free from EPA: Detailed Facility Report, ECHO Notify (registry ID 110038439785).

Other air sources in Illinois beside MICROSOFT CORP-CHICAGO DATA CENTER

EPA ICIS-AIR download, loaded September 14, 2026.