Clean Air Act stationary source · ICIS-AIR PA000568302

HUSSP DEVON/CHARLES RIVER LAB/TREDYFFRIN TWP, Wayne, PA: Clean Air Act compliance record, inspections, violations, penalties

Name: HUSSP DEVON/CHARLES RIVER LAB/TREDYFFRIN TWP, ICIS-AIR PA000568302: Clean Air Act stationary source record
Creator: Velarion Records
License: https://www.usa.gov/government-works

OperatingOperating status
Minor sourceEmissions classification
No Violation IdentifiedCurrent violation status, as filed
8Compliance evaluations since January 1, 2017
0High-priority violations since January 1, 2017
0Formal enforcement actions since January 1, 2017

HUSSP DEVON/CHARLES RIVER LAB/TREDYFFRIN TWP, at 466 DEVON PARK DR, Wayne in Chester County, Pennsylvania, is an operating minor source of air pollution on EPA’s ICIS-AIR register. EPA’s file records its current violation status (ICIS-AIR’s high-priority violation field) as “No Violation Identified”. Chester County is on EPA’s Green Book list of areas that do not meet a national air quality standard. The status and classification are as EPA’s facility file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the source’s current standing, quarter by quarter.

Identity

Facility as filed	HUSSP DEVON/CHARLES RIVER LAB/TREDYFFRIN TWP
ICIS-AIR ID	PA000568302
EPA facility registry ID	110000878603
Operating status	Operating
Emissions classification	Minor source
Current violation status (ICIS-AIR high-priority violation field)	No Violation Identified
Address	466 DEVON PARK DR, Wayne, PA 19087-1816
County	Chester County
In a nonattainment county	Yes (EPA Green Book)
Industry (NAICS)	Professional, scientific and technical services (NAICS 5417)
SIC code	8731
EPA region	03

Cited to the EPA ICIS-AIR facility file (ECHO download).

Programs and pollutants

Velarion’s copy of EPA’s ICIS-AIR download does not include its program, pollutant and Title V certification files, so this page does not list the Clean Air Act programs HUSSP DEVON/CHARLES RIVER LAB/TREDYFFRIN TWP is under or the pollutants it is permitted for. The programs each evaluation and violation below was recorded under are shown with it. EPA’s free Detailed Facility Report lists both.

Compliance evaluations

8Evaluations since January 1, 2017
3Full compliance evaluations

Date	What EPA recorded	Agency	Programs
October 2, 2025	FCE On-Site	State	MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
September 11, 2025	PCE On-Site Monitoring/Sampling	State	MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
September 9, 2025	PCE On-Site Monitoring/Sampling	State	MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
February 26, 2024	PCE On-Site Monitoring/Sampling	State	MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
January 31, 2023	PCE Off-Site	State	MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
March 29, 2022	FCE On-Site	State	MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
January 20, 2021	PCE Off-Site	State	MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
January 30, 2019	FCE On-Site	State	MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards

Violations

2Violation determinations since January 1, 2017
0Of them high-priority

A high-priority violation (HPV) is the most serious class of Clean Air Act non-compliance an agency records; a federally reportable violation (FRV) is the next step down. Each row is one determination as EPA’s violation history files it.

Date	What EPA recorded	Agency	Programs
September 9, 2025	Earliest FRV determination	State	State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
January 31, 2023	Earliest FRV determination	State	State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards

Enforcement and penalties

0 formal enforcement actions since January 1, 2017, 0 of them with a penalty filed above zero. Each penalty is shown as EPA’s formal action file states it; “Not stated” means the file gives no figure, and $0 is a disclosed zero.

Informal enforcement

Date	What EPA recorded	Agency
January 31, 2023	Notice of Violation	State
January 20, 2021	Notice of Violation	State

Stack tests

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

EPA’s stack test file holds no test at ICIS-AIR PA000568302 since January 1, 2017.

Cited to the EPA ICIS-AIR evaluation, violation, stack test and enforcement files (ECHO download), events dated January 1, 2017 or later as loaded; up to 50 rows of each shown, newest first.

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How we handle your data → Privacy

EPA publishes a free Detailed Facility Report for every source on ECHO: its compliance status quarter by quarter, its evaluations, and its violations, enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter EPA facility registry ID 110000878603 there.

Nearby on the register

Figures from EPA’s ICIS-AIR download, loaded September 14, 2026.

This page of the Velarion Records public-records register covers the Clean Air Act compliance record, inspections, violations and penalties for HUSSP DEVON/CHARLES RIVER LAB/TREDYFFRIN TWP, an operating minor source on EPA's ICIS-AIR register with ICIS-AIR ID PA000568302. The page lists 8 Compliance evaluations since January 1, 2017, 0 High-priority violations since January 1, 2017, and 0 Formal enforcement actions since January 1, 2017, with current violation status as filed shown as No Violation Identified. The page states that Chester County is on EPA's Green Book list of areas that do not meet a national air quality standard and that the status and classification are as EPA's facility file stood when Velarion loaded it ( September 14, 2026).