ICIS-AIR IL000097035ABN

PQ LLC, Gurnee, IL: Clean Air Act compliance record, inspections, violations, penalties

OperatingOperating status
Major sourceEmissions classification
No Violation IdentifiedCurrent violation status, as filed
5Compliance evaluations since January 1, 2017
0High-priority violations since January 1, 2017
0Formal enforcement actions since January 1, 2017

PQ LLC is on EPA’s ICIS-AIR register at 1945 N DELANY RD, Gurnee in Lake County, Illinois: operating status operating, emissions classification major source, current violation status “No Violation Identified”. Lake County is on EPA’s Green Book list of areas that do not meet a national air quality standard.

What stands out

The newest of the 5 events on file is a compliance evaluation dated April 16, 2026.
Its events on file run from March 9, 2018 through April 16, 2026.
Of its 5 compliance evaluations on file, 3 are a full compliance evaluation.
The register holds 673 air-emissions sources in Lake County, Illinois.

Every line is computed by formula from the record’s stored figures; nothing is estimated.

Identity

Facility as filed	PQ LLC
ICIS-AIR ID	IL000097035ABN
EPA facility registry ID	110001338419
Operating status	Operating
Emissions classification	Major source
Current violation status (HPV field)	No Violation Identified
Address	1945 N DELANY RD, Gurnee, IL 60031-1204
County	Lake County
In a nonattainment county	Yes (EPA Green Book)
Industry (NAICS)	Chemical manufacturing (NAICS 3251)
SIC code	2819
EPA region	05

Programs and pollutants

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

Compliance evaluations

5Evaluations since January 1, 2017
3Full compliance evaluations

Date	What EPA recorded	Agency	Programs
April 16, 2026	PCE Off-Site	State	State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
July 18, 2024	FCE On-Site	State	State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
May 12, 2021	FCE On-Site	State	State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
March 28, 2018	PCE Off-Site	State	State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
March 9, 2018	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 IL000097035ABN 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 IL000097035ABN 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 IL000097035ABN since January 1, 2017.

Watch PQ LLC

Privacy

Free from EPA: Detailed Facility Report, ECHO Notify (registry ID 110001338419).

Other air sources in Illinois beside PQ LLC

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