TRI Reporter
Clean Air Act
RCRA
CORONADO GENERATING PLANT
Quick Summary
- •Released 702,472 lbs of toxic chemicals to the environment in the most recent TRI reporting year.
- •Assessed $0 in total penalties since records began.
- •Reports releases of chemicals classified as known or probable carcinogens.
- Address
-
6MI/NE ST JOHNS-HWY191/B1018
ST JOHNS, AZ 85936
View on map ↗ - County
- APACHE County
- Industry
- Utilities
- NAICS (North American Industry Classification)
- 221112
- Inspections
- 3 · last Jul 16, 2024
- Total Penalties
- $0 · last Dec 19, 2008
- Registry ID
- 110017431242
How This Compares
#11
of 245 TRI reporters in AZ
#124
of 584 TRI reporters in Utilities
Ranked by most recent year's total TRI releases.
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)
-83% overall
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 1,856,477 | — |
| 2016 | 1,664,056 | -10% |
| 2017 | 702,472 | -58% |
| 2018 | 491,244 | -30% |
| 2019 | 264,463 | -46% |
| 2020 | 350,741 | +33% |
| 2021 | 454,601 | +30% |
| 2022 | 386,944 | -15% |
| 2023 | 408,128 | +5% |
| 2024 | 311,533 | -24% |
2024
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 247,078 | 713 | — | 246,365 | 0 | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 20,033 | 20,033 | — | — | — | |
| Ammonia | 14,456 | 14,396 | — | 60 | — | |
| Manganese compounds | 11,291 | 134 | — | 11,157 | — | |
| Vanadium compounds | 7,901 | 70 | — | 7,831 | — | |
| Copper compounds | 5,071 | 79 | — | 4,992 | — | |
| Hydrogen fluoride | 4,760 | 4,760 | — | — | — | |
| Lead compounds | 694 | 31 | — | 663 | 0 | |
| Dioxin and dioxin-like compounds | 183 | 183 | — | — | — | ♦ Carcinogen |
| Mercury compounds | 43 | 25 | — | 18 | 0 | |
| Naphthalene | 22 | 22 | — | — | 45 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 2 | 2 | — | — | 0 | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 0 | 0 | — | — | 0 |
2023
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 333,558 | 1,006 | — | 332,552 | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 25,011 | 25,011 | — | — | — | |
| Manganese compounds | 12,963 | 116 | — | 12,847 | — | |
| Vanadium compounds | 10,010 | 94 | — | 9,916 | — | |
| Zinc compounds | 7,029 | 787 | — | 6,242 | — | |
| Copper compounds | 6,245 | 103 | — | 6,142 | — | |
| Ammonia | 6,141 | 6,116 | — | 25 | — | |
| Hydrogen fluoride | 6,047 | 6,047 | — | — | — | |
| Lead compounds | 1,059 | 47 | — | 1,012 | 0 | |
| Mercury compounds | 43 | 22 | — | 21 | 0 | |
| Naphthalene | 20 | 20 | — | — | 63 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 2 | 2 | — | — | 0 | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 1 | 1 | — | — | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 0 | 0 | — | — | 0 |
2022
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 332,277 | 1,137 | — | 331,140 | — | |
| Manganese compounds | 11,922 | 148 | — | 11,774 | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 10,955 | 10,955 | — | — | — | |
| Vanadium compounds | 9,270 | 97 | — | 9,173 | — | |
| Zinc compounds | 6,269 | 771 | — | 5,498 | — | |
| Copper compounds | 5,792 | 103 | — | 5,689 | — | |
| Hydrogen fluoride | 5,075 | 5,075 | — | — | — | |
| Ammonia | 4,293 | 4,275 | — | 18 | — | |
| Lead compounds | 1,046 | 51 | — | 995 | 1 | |
| Mercury compounds | 31 | 14 | — | 17 | 0 | |
| Naphthalene | 11 | 11 | — | — | 70 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 2 | 2 | — | — | 0 | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 1 | 1 | — | — | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 0 | 0 | — | — | 0 |
2021
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 381,720 | 1,450 | — | 380,270 | — | |
| Manganese compounds | 13,353 | 166 | — | 13,187 | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 12,640 | 12,640 | — | — | — | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 12,490 | 170 | — | 12,320 | — | |
| Vanadium compounds | 10,029 | 116 | — | 9,913 | — | |
| Copper compounds | 6,804 | 123 | — | 6,681 | — | |
| Zinc compounds | 6,472 | 873 | — | 5,599 | — | |
| Hydrogen fluoride | 5,406 | 5,406 | — | — | — | |
| Ammonia | 4,456 | 4,437 | — | 19 | — | |
| Lead compounds | 1,180 | 63 | — | 1,118 | 0 | |
| Mercury compounds | 36 | 17 | — | 19 | — | |
| Naphthalene | 12 | 12 | — | — | 13 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 2 | 2 | — | — | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 1 | 1 | — | — | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 0 | 0 | — | — | — |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 295,521 | 858 | — | 294,663 | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 16,311 | 16,311 | — | — | — | |
| Manganese compounds | 9,764 | 94 | — | 9,670 | — | |
| Vanadium compounds | 7,901 | 74 | — | 7,827 | — | |
| Zinc compounds | 5,465 | 605 | — | 4,860 | — | |
| Copper compounds | 5,455 | 83 | — | 5,372 | — | |
| Ammonia | 4,941 | 4,920 | — | 21 | — | |
| Hydrogen fluoride | 4,345 | 4,345 | — | — | — | |
| Lead compounds | 996 | 41 | — | 955 | 0 | |
| Mercury compounds | 30 | 15 | — | 15 | — | |
| Naphthalene | 9 | 9 | — | — | 24 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 2 | 2 | — | — | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 1 | 1 | — | — | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 0 | 0 | — | — | — |
2019
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 228,689 | 755 | — | 227,934 | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 11,667 | 11,667 | — | — | — | |
| Vanadium compounds | 7,488 | 72 | — | 7,416 | — | |
| Zinc compounds | 7,332 | 643 | — | 6,689 | — | |
| Ammonia | 4,485 | 4,466 | — | 19 | — | |
| Hydrogen fluoride | 4,143 | 4,143 | — | — | — | |
| Lead compounds | 628 | 32 | — | 596 | 0 | |
| Mercury compounds | 23 | 11 | — | 12 | 0 | |
| Naphthalene | 7 | 7 | — | — | 30 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 1 | 1 | — | — | 0 | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 0 | 0 | — | — | 0 |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 405,516 | 880 | — | 404,636 | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 18,148 | 18,148 | — | — | — | |
| Manganese compounds | 16,321 | 131 | — | 16,190 | — | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 12,838 | 120 | — | 12,718 | — | |
| Vanadium compounds | 10,799 | 77 | — | 10,722 | — | |
| Copper compounds | 7,278 | 95 | — | 7,183 | — | |
| Zinc compounds | 6,972 | 679 | — | 6,293 | — | |
| Hydrogen fluoride | 5,806 | 5,806 | — | — | — | |
| Ammonia | 5,618 | 5,595 | — | 23 | — | |
| Lead compounds | 1,140 | 39 | — | 1,101 | 1 | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 749 | 749 | — | — | — | |
| Mercury compounds | 44 | 21 | — | 23 | 2 | |
| Naphthalene | 12 | 12 | — | — | 57 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 2 | 2 | — | — | 0 | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 1 | 1 | — | — | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 0 | 0 | — | — | 0 |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 564,051 | 917 | — | 563,134 | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 33,170 | 33,170 | — | — | — | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 24,534 | 185 | — | 24,349 | — | |
| Manganese compounds | 23,255 | 118 | — | 23,137 | — | |
| Vanadium compounds | 17,174 | 89 | — | 17,085 | — | |
| Copper compounds | 12,707 | 106 | — | 12,601 | — | |
| Zinc compounds | 11,839 | 766 | — | 11,073 | — | |
| Hydrogen fluoride | 6,401 | 6,401 | — | — | — | |
| Ammonia | 5,772 | 5,748 | — | 24 | — | |
| Lead compounds | 2,600 | 44 | — | 2,556 | 1 | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 860 | 860 | — | — | — | |
| Mercury compounds | 93 | 25 | — | 68 | 3 | |
| Naphthalene | 13 | 13 | — | — | 77 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 2 | 2 | — | — | 0 | ♦ 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 |
|---|---|---|---|---|
| Naphthalene | — | 45 | — | — |
| Lead compounds | — | 0 | — | — |
| Ammonia | — | — | — | 2,819 |
| Mercury compounds | — | 0 | — | — |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | — | — | — | 40,785 |
| Polycyclic aromatic compounds | — | 0 | — | — |
| Hydrogen fluoride | — | — | — | 142,404 |
| Benzo[g,h,i]perylene | — | 0 | — | — |
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 |
|---|---|---|---|---|---|
|
US ECOLOGY BEATTY, NV
BEATTY, NV
|
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0 | — | — | — |
|
CRYSTAL CLEAN
PHOENIX, AZ
|
Mercury compounds | — | 0 | — | — |
|
SAFETY-KLEEN SYSTEMS
CHANDLER, AZ
|
Mercury compounds | — | 0 | — | — |
|
CRYSTAL CLEAN
PHOENIX, AZ
|
Naphthalene | — | 43 | — | — |
|
SAFETY-KLEEN SYSTEMS
CHANDLER, AZ
|
Naphthalene | — | 2 | — | — |
|
US ECOLOGY BEATTY, NV
BEATTY, NV
|
Lead compounds | 0 | — | — | — |
|
CRYSTAL CLEAN
PHOENIX, AZ
|
Lead compounds | — | 0 | — | — |
|
SAFETY-KLEEN SYSTEMS
CHANDLER, AZ
|
Lead compounds | — | 0 | — | — |
|
CRYSTAL CLEAN
PHOENIX, AZ
|
Benzo[g,h,i]perylene | — | 0 | — | — |
|
SAFETY-KLEEN SYSTEMS
CHANDLER, AZ
|
Benzo[g,h,i]perylene | — | 0 | — | — |
|
CRYSTAL CLEAN
PHOENIX, AZ
|
Polycyclic aromatic compounds | — | 0 | — | — |
|
SAFETY-KLEEN SYSTEMS
CHANDLER, AZ
|
Polycyclic aromatic compounds | — | 0 | — | — |
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 | Sep 21, 2010 | Mar 8, 2011 | Resolved |
| rcra | Standards for Universal Waste Management: Standards for Small Quantity Handlers | Sep 21, 2010 | Mar 8, 2011 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Sep 22, 1987 | Nov 20, 1987 | 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.
INSPECTION REPORT WRITTEN
RCRA (Hazardous Waste)
· Case RCRA-AZD078986643-5 · Jul 25, 2019
NOV/RECEIVED BY FACILITY
RCRA (Hazardous Waste)
· Case RCRA-AZD078986643-4 · Apr 1, 2011
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-AZD078986643-3 · Mar 28, 2011
RECEIVED FACILITY DOCUMENTATION
RCRA (Hazardous Waste)
· Case RCRA-AZD078986643-2 · Jan 20, 2011
INSPECTION REPORT WRITTEN
RCRA (Hazardous Waste)
· Case RCRA-AZD078986643-001 · Oct 19, 2010
RECEIVED FACILITY DOCUMENTATION
RCRA (Hazardous Waste)
· Case RCRA-AZD078986643-1 · Oct 13, 2010
Judicial
· Case 09-2007-0273 · Dec 19, 2008
$950,000
Other facilities in APACHE County, AZ
NA-15-T53/XG8 LUPTON SCATTERED
LUPTON, AZ
CHINLE SCATTERED HOUSING (F25)
CHINLE, AZ
DENNEHOTSO SCATTERED EXTENSIONS (T43/XF4)
DENNEHOTSO, AZ
USDOI BIA YALE POINT RADIO TOWER
CHINLE, AZ
NA-20-XU3 CHINLE FAILED DRAINFIELDS (DL-4)
CHINLE, AZ
MANY FARMS HIGH SCHOOL
MANY FARMS, AZ