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Clean Air Act stationary source · ICIS-AIR AZ00000004015Z2605

UNS ELECTRIC INC - BLACK MOUNTAIN GENERATING STATION, Griffith, AZ: Clean Air Act compliance record, inspections, violations, penalties

UNS ELECTRIC INC - BLACK MOUNTAIN GENERATING STATION, at APPROXIMATELY 10 MILES SOUTHEAST OF KINGMAN., Griffith in Mohave County, Arizona, is an operating major 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”. Mohave 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 filedUNS ELECTRIC INC - BLACK MOUNTAIN GENERATING STATION
ICIS-AIR IDAZ00000004015Z2605
EPA facility registry ID110045950583
Operating statusOperating
Emissions classificationMajor source
Current violation status (ICIS-AIR high-priority violation field)No Violation Identified
AddressAPPROXIMATELY 10 MILES SOUTHEAST OF KINGMAN., Griffith, AZ 86413
CountyMohave County
In a nonattainment countyYes (EPA Green Book)
Industry (NAICS)Utilities (NAICS 2211)
SIC code4911
EPA region09

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

Programs and pollutants

Velarion’s copy of EPA’s ICIS-AIR download does not yet include its program, pollutant and Title V certification files, so this page does not list the Clean Air Act programs UNS ELECTRIC INC - BLACK MOUNTAIN GENERATING STATION 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

DateWhat EPA recordedAgencyPrograms
May 12, 2026FCE On-SiteStateNew Source Performance Standards
May 7, 2025PCE On-SiteStateNew Source Performance Standards
May 7, 2025FCE On-SiteStateNew Source Performance Standards
March 27, 2024PCE On-SiteStateNew Source Performance Standards
March 27, 2024FCE On-SiteStateNew Source Performance Standards
November 8, 2022PCE On-SiteStateNew Source Performance Standards
November 8, 2022FCE On-SiteStateNew Source Performance Standards
November 10, 2021FCE On-SiteStateNew Source Performance Standards
September 15, 2021PCE On-SiteStateNew Source Performance Standards
August 12, 2020PCE On-SiteStateNew Source Performance Standards
August 12, 2020FCE On-SiteStateNew Source Performance Standards
November 14, 2019FCE On-SiteStateNew Source Performance Standards
August 6, 2019PCE On-SiteStateNew Source Performance Standards
November 21, 2018FCE On-SiteStateNew Source Performance Standards
June 26, 2018PCE On-SiteStateNew Source Performance Standards
February 21, 2018PCE On-SiteStateNew Source Performance Standards
February 21, 2018FCE On-SiteStateNew Source Performance Standards

Violations

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 AZ00000004015Z2605 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

DateWhat EPA recordedAgency
July 12, 2021Warning LetterState
January 13, 2021Warning LetterState
December 3, 2018Notice of ViolationState

Stack tests

DateWhat EPA recordedAgency
June 25, 2025PassState
July 12, 2024PassState
May 23, 2023PassState
June 9, 2020PassState
October 31, 2019PassState
July 9, 2019PassState
May 23, 2018PassState
May 24, 2017PassState

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 110045950583 there.

Nearby on the register

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