Clean Air Act stationary source · ICIS-AIR NJ00018834

NRG ENERGY CENTER PRINCETON LLC, Plainsboro, NJ: Clean Air Act compliance record, inspections, violations, penalties

OperatingOperating status
Synthetic minor sourceEmissions classification
No Violation IdentifiedCurrent violation status, as filed
3Compliance evaluations since January 1, 2017
0High-priority violations since January 1, 2017
0Formal enforcement actions since January 1, 2017

NRG ENERGY CENTER PRINCETON LLC, at 3 PLAINSBORO RD., Plainsboro in Middlesex County, New Jersey, is an operating synthetic 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”. Middlesex 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	NRG ENERGY CENTER PRINCETON LLC
ICIS-AIR ID	NJ00018834
EPA facility registry ID	110067012529
Operating status	Operating
Emissions classification	Synthetic minor source
Current violation status (ICIS-AIR high-priority violation field)	No Violation Identified
Address	3 PLAINSBORO RD., Plainsboro, NJ 08536
County	Middlesex County
In a nonattainment county	Yes (EPA Green Book)
Industry (NAICS)	Utilities (NAICS 2213)
EPA region	02

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 NRG ENERGY CENTER PRINCETON LLC 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

3Evaluations since January 1, 2017
2Full compliance evaluations

Date	What EPA recorded	Agency	Programs
September 11, 2026	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 24, 2021	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
March 18, 2020	PCE Off-Site	U.S. EPA	Federally-Enforceable State Operating Permit - Non Title V

Violations

0Violation 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.

EPA’s violation history file holds no violation for ICIS-AIR NJ00018834 since January 1, 2017.

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
August 23, 2023	Notice of Violation	State
September 30, 2021	Notice of Violation	State
November 2, 2017	Notice of Violation	State

Stack tests

3Stack tests since January 1, 2017
1Recorded as failed

Date	What EPA recorded	Agency
May 17, 2022	Fail	State
June 10, 2020	Pass	State
May 1, 2018	Pass	State

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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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 110067012529 there.

Nearby on the register

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

This page covers the Clean Air Act compliance record for NRG ENERGY CENTER PRINCETON LLC, ICIS-AIR NJ00018834, an operating synthetic minor source in Plainsboro, NJ. The listed figures show 2 compliance evaluations, 0 high-priority violations, and 0 formal enforcement actions since January 1, 2017.