Non-Compliance
TRI Reporter
Clean Air Act
Clean Water Act
RCRA
APS - CHOLLA POWER PLANT
Quick Summary
- •Released 245,883 lbs of toxic chemicals to the environment in the most recent TRI reporting year.
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $0 in total penalties since records began.
- •Reports releases of chemicals classified as known or probable carcinogens.
- Address
-
4801 CHOLLA LAKE ROAD
JOSEPH CITY, AZ 86032
View on map ↗ - County
- NAVAJO County
- Industry
- Utilities
- NAICS (North American Industry Classification)
- 221112
- Inspections
- 5 · last May 28, 2025
- Total Penalties
- $0 · last Sep 27, 2004
- Registry ID
- 110017206192
How This Compares
#13
of 245 TRI reporters in AZ
#194
of 584 TRI reporters in Utilities
Ranked by most recent year's total TRI releases.
Compliance Status (Last 12 Quarters)
Number of calendar quarters, out of the last 12, in which this facility was in violation of its permit. Zero means no recorded violations in that program over the past three years.
0
Air (CAA)
Qtrs Non-Compliant
Qtrs Non-Compliant
1
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
0
Hazardous Waste (RCRA)
Qtrs Non-Compliant
Qtrs Non-Compliant
TRI Toxic Chemical Releases
Annual pounds of each toxic chemical released to air, water, and land, as reported to the EPA Toxic Release Inventory. Carcinogen (♦) and PFAS designations are per EPA and IARC classifications.
Emissions Trend (2015–2024)
-91% overall
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 703,706 | — |
| 2016 | 180,945 | -74% |
| 2017 | 245,883 | +36% |
| 2018 | 169,271 | -31% |
| 2019 | 4,897 | -97% |
| 2020 | 168,762 | +3346% |
| 2021 | 64,491 | -62% |
| 2022 | 127,591 | +98% |
| 2023 | 93,672 | -27% |
| 2024 | 64,016 | -32% |
2024
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Benzo[g,h,i]perylene | — | — | — | — | — | |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 41,010 | 57 | — | 40,953 | — | |
| Manganese compounds | 14,751 | 249 | — | 14,502 | — | |
| Vanadium compounds | 3,873 | 24 | — | 3,849 | — | |
| Hydrogen fluoride | 2,710 | 2,710 | — | — | — | |
| Lead compounds | 940 | 18 | — | 922 | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 701 | 701 | — | — | — | |
| Mercury compounds | 25 | 12 | — | 13 | — | |
| Naphthalene | 5 | 5 | — | — | — | ♦ Carcinogen |
| Polycyclic aromatic compounds | 1 | 1 | — | — | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ Carcinogen |
2023
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 53,895 | 93 | — | 53,802 | — | |
| Manganese compounds | 21,404 | 127 | — | 21,277 | — | |
| Vanadium compounds | 4,699 | 32 | — | 4,667 | — | |
| Hydrogen fluoride | 4,284 | 4,284 | — | — | — | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 3,869 | 40 | — | 3,829 | — | |
| Zinc compounds | 3,499 | 333 | — | 3,166 | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 1,119 | 1,119 | — | — | — | |
| Lead compounds | 868 | 24 | — | 844 | — | |
| Mercury compounds | 33 | 20 | — | 14 | — | |
| Polycyclic aromatic compounds | 1 | 1 | — | — | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 0 | 0 | — | — | — |
2022
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 73,760 | 157 | — | 73,603 | — | |
| Manganese compounds | 26,945 | 765 | — | 26,180 | — | |
| Vanadium compounds | 6,243 | 47 | — | 6,196 | — | |
| Hydrogen fluoride | 5,541 | 5,541 | — | — | — | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 4,672 | 122 | — | 4,550 | — | |
| Zinc compounds | 4,238 | 459 | — | 3,779 | — | |
| Copper compounds | 2,792 | 49 | — | 2,743 | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 1,243 | 1,243 | — | — | — | |
| Lead compounds | 1,204 | 41 | — | 1,163 | 4 | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 908 | 908 | — | — | — | |
| Mercury compounds | 42 | 26 | — | 16 | 1 | |
| Polycyclic aromatic compounds | 2 | 2 | — | — | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 1 | 1 | — | — | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 0 | 0 | — | — | — |
2021
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 38,057 | 168 | — | 37,889 | — | |
| Manganese compounds | 12,417 | 208 | — | 12,209 | — | |
| Hydrogen fluoride | 4,080 | 4,080 | — | — | — | |
| Vanadium compounds | 3,090 | 47 | — | 3,043 | — | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 2,617 | 60 | — | 2,557 | — | |
| Zinc compounds | 2,301 | 430 | — | 1,871 | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 1,532 | 1,532 | — | — | — | |
| Lead compounds | 370 | 36 | — | 334 | 1 | |
| Mercury compounds | 25 | 20 | — | 5 | — | |
| Polycyclic aromatic compounds | 1 | 1 | — | — | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 0 | 0 | — | — | — |
2020
2019
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Zinc compounds | 3,940 | 523 | — | 3,417 | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 915 | 915 | — | — | — | |
| Mercury compounds | 42 | 27 | — | 15 | — | |
| Benzo[g,h,i]perylene | 0 | 0 | — | — | — |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 84,728 | 267 | — | 84,461 | — | |
| Manganese compounds | 37,724 | 293 | — | 37,431 | — | |
| Vanadium compounds | 8,980 | 86 | — | 8,894 | — | |
| Hydrogen fluoride | 8,454 | 8,454 | — | — | — | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 7,559 | 102 | — | 7,457 | — | |
| Zinc compounds | 6,386 | 767 | — | 5,619 | — | |
| Nickel compounds | 4,316 | 98 | — | 4,218 | — | ♦ Carcinogen |
| Copper compounds | 3,609 | 80 | — | 3,529 | — | |
| Lead compounds | 2,326 | 66 | — | 2,261 | 7 | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 2,120 | 2,120 | — | — | — | |
| Arsenic compounds | 1,821 | 59 | — | 1,762 | — | ♦ Carcinogen |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 1,172 | 1,172 | — | — | — | |
| Mercury compounds | 72 | 35 | — | 38 | 1 | |
| Polycyclic aromatic compounds | 2 | 2 | — | — | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 1 | 1 | — | — | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 0 | 0 | — | — | — |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 140,831 | 284 | — | 140,547 | — | |
| Manganese compounds | 50,801 | 258 | — | 50,543 | — | |
| Vanadium compounds | 11,576 | 81 | — | 11,495 | — | |
| Hydrogen fluoride | 9,093 | 9,093 | — | — | — | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 8,693 | 92 | — | 8,601 | — | |
| Zinc compounds | 8,058 | 768 | — | 7,290 | — | |
| Copper compounds | 4,963 | 80 | — | 4,883 | — | |
| Nickel compounds | 4,830 | 88 | — | 4,742 | — | ♦ Carcinogen |
| Lead compounds | 2,587 | 61 | — | 2,526 | 1 | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 1,677 | 1,677 | — | — | — | |
| Arsenic compounds | 1,523 | 46 | — | 1,477 | — | ♦ Carcinogen |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 1,176 | 1,176 | — | — | — | |
| Mercury compounds | 71 | 36 | — | 36 | 0 | |
| Polycyclic aromatic compounds | 3 | 3 | — | — | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 1 | 1 | — | — | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 0 | 0 | — | — | — |
2016
2015
Waste Management & Recycling
How this facility manages toxic chemicals beyond direct releases — through recycling, energy recovery, and on-site or off-site treatment. Data from the most recent TRI reporting year. Quantities in pounds.
| Chemical | Released | Recycled | Energy Recovery | Treated |
|---|---|---|---|---|
| Benzo[g,h,i]perylene | — | — | 158 | — |
| Naphthalene | — | — | 24,384 | — |
| Hydrogen fluoride | — | — | — | 80,960 |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | — | — | — | 47,992 |
| Polycyclic aromatic compounds | — | — | 20,309 | — |
Off-Site Transfer Destinations
Facilities to which toxic chemicals were transferred for disposal, recycling, energy recovery, or treatment during the most recent TRI reporting year. Quantities in pounds.
| Destination | Chemical | Disposal | Recycling | Energy Rec. | Treatment |
|---|---|---|---|---|---|
|
CLEAN HARBORS DEER PARK, LLC
LA PORTE, TX
|
Mercury compounds | 0 | — | — | — |
|
CLEAN HARBORS DEER PARK, LLC
LA PORTE, TX
|
Lead compounds | 1 | — | — | — |
Compliance Violations
Individual permit violations recorded by the EPA across air, water, and hazardous waste programs. Open violations are unresolved as of the most recent ECHO data update.
| Program | Type | Violation Date | Return to Compliance | Status |
|---|---|---|---|---|
| rcra | Standards Applicable to Generators of HW: General | Dec 13, 2006 | Jan 3, 2007 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Jul 17, 2001 | Feb 19, 2002 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Jul 17, 2001 | Feb 19, 2002 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: General | Jul 17, 2001 | Feb 19, 2002 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Mar 17, 1992 | Nov 2, 1993 | Resolved |
Enforcement Actions
Formal enforcement cases brought by the EPA or state agencies, including administrative orders and civil penalties assessed. Penalty amounts reflect what was formally assessed, not necessarily what was collected.
Judicial
· Case 09-1990-0039
INSPECTION REPORT WRITTEN
RCRA (Hazardous Waste)
· Case RCRA-AZD980886303-7 · Jul 29, 2019
INSPECTION REPORT SENT NO VIOL NO RESPONSE
RCRA (Hazardous Waste)
· Case RCRA-AZD980886303-001 · Oct 20, 2009
Administrative - Formal
· Case 09-2004-0387 · Sep 27, 2004
$1
3007 Letter
RCRA (Hazardous Waste)
· Case RCRA-AZD980886303-004 · Dec 12, 2001
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-AZD980886303-003 · Oct 15, 2001
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-AZD980886303-002 · Jul 6, 1993
Judicial
· Case 09-1987-0023 · Feb 4, 1992
$1,310,000
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