Non-Compliance
TRI Reporter
Clean Air Act
Clean Water Act
RCRA
COEUR ALASKA - KENSINGTON GOLD MINE
Quick Summary
- •Released 2,228,054 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 $30,000 in total penalties since records began.
- •Reports releases of chemicals classified as known or probable carcinogens.
- Address
-
3031 CLINTON DRIVE SUITE 202
JUNEAU, AK 99801
View on map ↗ - Industry
- Mining, Quarrying, and Oil and Gas Extraction
- NAICS (North American Industry Classification)
- 212221
- Inspections
- 4 · last Jun 23, 2025
- Total Penalties
- $30,000 · last May 6, 2024
- Registry ID
- 110055091699
How This Compares
#5
of 51 TRI reporters in AK
#46
of 555 TRI reporters in Mining, Quarrying, and Oil and Gas Extraction
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
12
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
1
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)
+16% overall
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 2,170,782 | — |
| 2016 | 1,952,759 | -10% |
| 2017 | 2,228,054 | +14% |
| 2018 | 2,214,232 | -1% |
| 2019 | 303,336 | -86% |
| 2020 | 2,245,591 | +640% |
| 2021 | 2,310,481 | +3% |
| 2022 | 2,268,742 | -2% |
| 2023 | 2,334,233 | +3% |
| 2024 | 2,525,938 | +8% |
2024
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| 1,2,4-Trimethylbenzene | — | — | — | — | 364 | |
| Manganese compounds | 1,786,169 | 4 | 165 | 1,786,000 | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 518,114 | — | 518,000 | 114 | 2 | |
| Vanadium compounds | 77,000 | — | — | 77,000 | — | |
| Zinc compounds | 67,007 | 3 | 4 | 67,000 | — | |
| Copper compounds | 49,008 | 4 | 4 | 49,000 | — | |
| Ammonia | 9,430 | 4,900 | 4,400 | 130 | 3 | |
| Chromium | 9,301 | 1 | — | 9,300 | 0 | |
| Lead compounds | 7,975 | 6 | 1 | 7,968 | 0 | |
| Propylene | 1,712 | 1,712 | — | — | — | |
| Mercury compounds | 167 | 2 | — | 165 | — | |
| Xylene (mixed isomers) | 30 | 30 | — | — | 502 | |
| Naphthalene | 25 | 25 | — | — | 182 | ♦ Carcinogen |
2023
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| 1,2,4-Trimethylbenzene | — | — | — | — | 398 | |
| Manganese compounds | 1,590,186 | 3 | 183 | 1,590,000 | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 549,055 | — | 549,000 | 55 | 1 | |
| Zinc compounds | 61,009 | 3 | 6 | 61,000 | — | |
| Vanadium compounds | 60,000 | — | — | 60,000 | — | |
| Copper compounds | 47,607 | 3 | 4 | 47,600 | — | |
| Ammonia | 9,830 | 5,200 | 4,500 | 130 | 2 | |
| Chromium | 9,701 | 1 | — | 9,700 | 1 | |
| Lead compounds | 5,004 | 5 | 1 | 4,998 | 1 | |
| Propylene | 1,717 | 1,717 | — | — | — | |
| Mercury compounds | 69 | 2 | — | 67 | — | |
| Xylene (mixed isomers) | 30 | 30 | — | — | 401 | |
| Naphthalene | 25 | 25 | — | — | 199 | ♦ Carcinogen |
2022
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Ethylene glycol | — | — | — | — | 10,229 | |
| 1,2,4-Trimethylbenzene | — | — | — | — | 190 | |
| Manganese compounds | 1,626,253 | 3 | 250 | 1,626,000 | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 431,068 | — | 431,000 | 68 | 1 | |
| Vanadium compounds | 68,000 | — | — | 68,000 | — | |
| Zinc compounds | 66,008 | 3 | 5 | 66,000 | — | |
| Copper compounds | 52,506 | 3 | 3 | 52,500 | — | |
| Chromium | 10,101 | 1 | — | 10,100 | 7 | |
| Ammonia | 9,155 | 5,000 | 4,100 | 55 | 1 | |
| Lead compounds | 3,712 | 5 | 1 | 3,706 | 7 | |
| Propylene | 1,815 | 1,815 | — | — | — | |
| Mercury compounds | 68 | 2 | — | 66 | — | |
| Xylene (mixed isomers) | 31 | 31 | — | — | 468 | |
| Naphthalene | 25 | 25 | — | — | 89 | ♦ Carcinogen |
2021
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| 1,2,4-Trimethylbenzene | — | — | — | — | 114 | |
| Ethylene glycol | — | — | — | — | 4,449 | |
| Manganese compounds | 1,655,163 | 5 | 158 | 1,655,000 | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 446,024 | — | 446,000 | 24 | — | |
| Vanadium compounds | 70,000 | — | — | 70,000 | — | |
| Zinc compounds | 69,010 | 3 | 7 | 69,000 | — | |
| Copper compounds | 46,007 | 4 | 3 | 46,000 | — | |
| Ammonia | 9,159 | 5,000 | 4,100 | 59 | 1 | |
| Chromium | 9,101 | 1 | — | 9,100 | 1 | |
| Lead compounds | 4,314 | 5 | 1 | 4,307 | 2 | |
| Propylene | 1,614 | 1,614 | — | — | — | |
| Mercury compounds | 48 | 2 | — | 46 | — | |
| Xylene (mixed isomers) | 22 | 22 | — | — | 226 | |
| Naphthalene | 19 | 19 | — | — | 58 | ♦ Carcinogen |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Ethylene glycol | — | — | — | — | 1,376 | |
| Manganese compounds | 1,648,165 | 5 | 160 | 1,648,000 | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 401,409 | — | 401,391 | 18 | — | |
| Zinc compounds | 67,008 | 3 | 5 | 67,000 | — | |
| Vanadium compounds | 64,000 | — | — | 64,000 | — | |
| Copper compounds | 37,006 | 3 | 3 | 37,000 | — | |
| Ammonia | 8,387 | 4,800 | 3,500 | 87 | 1 | |
| Nickel | 7,500 | — | — | 7,500 | — | ♦ Carcinogen |
| Chromium | 6,201 | 1 | — | 6,200 | 3 | |
| Lead compounds | 4,139 | 5 | 1 | 4,133 | 3 | |
| Propylene | 1,613 | 1,613 | — | — | — | |
| Mercury compounds | 118 | 2 | — | 116 | — | |
| Xylene (mixed isomers) | 23 | 22 | — | 1 | 124 | |
| Naphthalene | 20 | 19 | — | 1 | 38 | ♦ Carcinogen |
| 1,2,4-Trimethylbenzene | 1 | — | — | 1 | 76 |
2019
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 299,114 | — | 299,000 | 114 | 3 | |
| Nickel | 4,200 | — | — | 4,200 | — | ♦ Carcinogen |
| Naphthalene | 22 | 22 | — | — | 167 | ♦ Carcinogen |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Ethylene glycol | — | — | — | — | 3,582 | |
| 1,2,4-Trimethylbenzene | — | — | — | — | 580 | |
| Manganese compounds | 1,749,193 | 7 | 186 | 1,749,000 | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 285,227 | — | 285,100 | 127 | 7 | |
| Zinc compounds | 65,012 | 6 | 6 | 65,000 | — | |
| Vanadium compounds | 61,000 | — | — | 61,000 | — | |
| Copper compounds | 32,005 | 3 | 2 | 32,000 | — | |
| Ammonia | 6,456 | 3,900 | 2,476 | 80 | 10 | |
| Lead compounds | 5,686 | 5 | 1 | 5,681 | 3 | |
| Nickel | 4,201 | 1 | — | 4,200 | — | ♦ Carcinogen |
| Chromium | 3,502 | 2 | — | 3,500 | 5 | |
| Propylene | 1,800 | 1,800 | — | — | — | |
| Mercury compounds | 97 | 2 | — | 95 | — | |
| Xylene (mixed isomers) | 31 | 31 | — | — | 512 | |
| Naphthalene | 22 | 22 | — | — | 186 | ♦ Carcinogen |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| 1,2,4-Trimethylbenzene | — | — | — | — | 645 | |
| Manganese compounds | 1,793,202 | 6 | 196 | 1,793,000 | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 249,450 | — | 249,100 | 350 | 12 | |
| Vanadium compounds | 68,000 | — | — | 68,000 | — | |
| Zinc compounds | 63,011 | 5 | 6 | 63,000 | — | |
| Copper compounds | 32,005 | 3 | 2 | 32,000 | — | |
| Lead compounds | 8,504 | 5 | 1 | 8,498 | 45 | |
| Ammonia | 5,879 | 3,500 | 2,200 | 179 | 5 | |
| Nickel | 3,301 | 1 | — | 3,300 | — | ♦ Carcinogen |
| Chromium | 2,801 | 1 | — | 2,800 | 45 | |
| Propylene | 1,790 | 1,790 | — | — | — | |
| Mercury compounds | 59 | 2 | — | 57 | — | |
| Xylene (mixed isomers) | 31 | 31 | — | — | 701 | |
| Naphthalene | 22 | 22 | — | — | 260 | ♦ Carcinogen |
2016
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| 1,2,4-Trimethylbenzene | — | — | — | — | 81 | |
| Manganese compounds | 1,513,222 | 7 | 215 | 1,513,000 | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 266,241 | — | 266,000 | 241 | 11 | |
| Vanadium compounds | 60,000 | — | — | 60,000 | — | |
| Zinc compounds | 56,011 | 4 | 7 | 56,000 | — | |
| Copper compounds | 34,005 | 3 | 2 | 34,000 | — | |
| Lead compounds | 11,114 | 5 | 1 | 11,109 | 62 | |
| Ammonia | 5,662 | 3,600 | 1,900 | 162 | 5 | |
| Nickel | 3,401 | 1 | — | 3,400 | — | ♦ Carcinogen |
| Chromium | 3,002 | 2 | — | 3,000 | 62 | |
| Mercury compounds | 60 | 1 | — | 58 | — | |
| Xylene (mixed isomers) | 23 | 23 | — | — | 488 | |
| Naphthalene | 18 | 18 | — | — | 56 | ♦ Carcinogen |
2015
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Manganese compounds | 1,706,332 | 6 | 252 | 1,706,074 | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 255,692 | — | 255,500 | 192 | 11 | |
| Vanadium compounds | 66,680 | — | — | 66,680 | — | |
| Zinc compounds | 58,407 | 4 | — | 58,404 | — | |
| Copper compounds | 35,172 | 3 | 3 | 35,167 | — | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 27,224 | 3 | 7 | 27,215 | 17 | |
| Lead compounds | 10,989 | 4 | 1 | 10,984 | 17 | |
| Ammonia | 5,194 | 3,243 | 1,807 | 144 | 6 | |
| Nickel | 3,361 | 1 | — | 3,360 | — | ♦ Carcinogen |
| Propylene | 1,619 | 1,619 | — | — | — | |
| Mercury compounds | 74 | 1 | — | 73 | — | |
| Xylene (mixed isomers) | 21 | 21 | — | — | 262 | |
| Naphthalene | 17 | 17 | — | — | 79 | ♦ Carcinogen |
| 1,2,4-Trimethylbenzene | 0 | 0 | — | — | 302 |
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 |
|---|---|---|---|---|
| Manganese compounds | — | 4 | — | — |
| 1,2,4-Trimethylbenzene | — | 350 | — | 14 |
| Ammonia | — | — | — | 1,202 |
| Xylene (mixed isomers) | — | 350 | — | 152 |
| Copper compounds | — | 6 | — | — |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | — | — | — | 2 |
| Lead compounds | — | 1 | — | — |
| Naphthalene | — | 176 | — | 6 |
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 ARAGONITE, LLC
ARAGONITE, UT
|
Xylene (mixed isomers) | — | — | — | 2 |
|
EMERALD SERVICES, INC.
SEATTLE, WA
|
Xylene (mixed isomers) | — | — | — | 3 |
|
THERMO FLUIDS INC
CLACKAMAS, OR
|
Xylene (mixed isomers) | — | — | — | 7 |
|
CLEAN HARBORS ENVIRONMENTAL SERVICES, INC.
KIMBALL, NE
|
Xylene (mixed isomers) | — | — | — | 140 |
|
COLUMBIA RIDGE LDFL & RECYCLING CTR
ARLINGTON, OR
|
Xylene (mixed isomers) | — | — | — | — |
|
FULL CYCLE LLC, WARD COVE FACILITY
KETCHIKAN, AK
|
Xylene (mixed isomers) | — | 350 | — | — |
|
CLEAN HARBORS ENVIRONMENTAL SERVICES, INC.
KIMBALL, NE
|
Chromium | 0 | — | — | — |
|
CLEAN HARBORS ENVIRONMENTAL SERVICES, INC.
KIMBALL, NE
|
Lead compounds | 0 | — | — | — |
|
EMERALD SERVICES, INC.
SEATTLE, WA
|
1,2,4-Trimethylbenzene | — | — | — | 5 |
|
THERMO FLUIDS INC
CLACKAMAS, OR
|
1,2,4-Trimethylbenzene | — | — | — | 7 |
|
COLUMBIA RIDGE LDFL & RECYCLING CTR
ARLINGTON, OR
|
1,2,4-Trimethylbenzene | — | — | — | — |
|
CLEAN HARBORS ARAGONITE, LLC
ARAGONITE, UT
|
1,2,4-Trimethylbenzene | — | — | — | 2 |
|
FULL CYCLE LLC, WARD COVE FACILITY
KETCHIKAN, AK
|
1,2,4-Trimethylbenzene | — | 350 | — | — |
|
CLEAN HARBORS ARAGONITE, LLC
ARAGONITE, UT
|
Naphthalene | — | — | — | 1 |
|
EMERALD SERVICES, INC.
SEATTLE, WA
|
Naphthalene | — | — | — | 1 |
|
THERMO FLUIDS INC
CLACKAMAS, OR
|
Naphthalene | — | — | — | 4 |
|
COLUMBIA RIDGE LDFL & RECYCLING CTR
ARLINGTON, OR
|
Naphthalene | — | — | — | — |
|
FULL CYCLE LLC, WARD COVE FACILITY
KETCHIKAN, AK
|
Naphthalene | — | 176 | — | — |
Transfers to Publicly-Owned Treatment Works (POTWs)
Toxic chemicals transferred to municipal wastewater treatment plants during the most recent TRI reporting year. Quantities in pounds.
| Chemical | Transferred (lbs) | POTW |
|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 2 | JUNEAU DOUGLAS WASTEWATER TREATMENT PLANT, JUNEAU |
| Ammonia | 3 | JUNEAU DOUGLAS WASTEWATER TREATMENT PLANT, JUNEAU |
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 |
|---|---|---|---|---|
| caa | Linked to Viol. Below | — | — | Open |
| caa | Linked to Viol. Below | — | — | Open |
| cwa | Reporting Violations - Late Submittal of DMRs | Jun 16, 2024 | — | Open |
| rcra | Land Disposal Restrictions: General | Apr 4, 2024 | May 6, 2024 | Resolved |
| rcra | Standards for the Management of Specific HW and Specific Types of HW Management Facilities: Recyclable Materials Utilized for Precious Metal Recovery | Apr 4, 2024 | May 6, 2024 | Resolved |
| rcra | Standards Applicable to Generators of HW: Preparedness. Prevention, and Emergency Procedures for LQGs | Apr 4, 2024 | May 6, 2024 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Apr 4, 2024 | May 6, 2024 | Resolved |
| rcra | Standards for Universal Waste Management: Standards for Small Quantity Handlers | Apr 4, 2024 | May 6, 2024 | Resolved |
| rcra | Standards for Used Oil: Generators | Apr 4, 2024 | May 6, 2024 | Resolved |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Jul 6, 2023 | — | Open |
| cwa | Management Practice Violations - Improper Chemical Handling | Jul 6, 2023 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Jul 6, 2023 | — | Open |
| cwa | Effluent Violations - Unauthorized Discharge | Jul 6, 2023 | — | Open |
| cwa | Schedule Event unachieved and not reported | Mar 1, 2022 | Apr 1, 2022 | Resolved |
| cwa | Schedule Event unachieved and not reported | Feb 15, 2022 | Mar 18, 2022 | Resolved |
| cwa | Effluent Violations - Unauthorized Discharge | Mar 25, 2021 | — | Open |
| cwa | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | Mar 25, 2021 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Mar 25, 2021 | — | Open |
| cwa | Schedule Event unachieved and not reported | Feb 15, 2021 | Mar 18, 2021 | Resolved |
| cwa | WW Storm Water Non-Construction - Failure to Maintain Records | Nov 3, 2020 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Nov 3, 2020 | — | Open |
| caa | FRV | Aug 21, 2020 | — | Open |
| cwa | Management Practice Violations - Best Management Practice Deficiencies | Nov 18, 2019 | — | Open |
| cwa | Monitoring Violations - Failure to Monitor for Non-Toxicity Requirements | Nov 13, 2019 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Nov 13, 2019 | — | Open |
| cwa | Management Practice Violations - Failure to Maintain Records | Nov 13, 2019 | — | Open |
| cwa | Management Practice Violations - Improper Operation and Maintenance | Nov 13, 2019 | — | Open |
| cwa | Monitoring Violations - Improper Analysis or Lab Error | Nov 13, 2019 | — | Open |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Nov 13, 2019 | — | Open |
| caa | FRV | Oct 5, 2019 | — | Open |
| cwa | Management Practice Violations - Best Management Practice Deficiencies | Oct 3, 2019 | — | Open |
| cwa | Effluent Violations - Unauthorized Discharge | Oct 3, 2019 | — | Open |
| cwa | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | Aug 30, 2017 | — | Open |
| cwa | Management Practice Violations - Failure to Maintain Records | Aug 30, 2017 | — | Open |
| rcra | Standards Applicable to Recordkeeping and Reporting Applicable to Small and Large Quantity Generators | Feb 21, 2013 | Mar 26, 2013 | Resolved |
| rcra | Standards Applicable to Generators of HW: Manifest Requirements Applicable to Small and Large Quantity Generators | Feb 21, 2013 | Mar 26, 2013 | Resolved |
| rcra | Standards for Used Oil: Generators | Feb 21, 2013 | Mar 26, 2013 | Resolved |
| cwa | WW Storm Water Non-Construction - Discharge without a permit | Oct 31, 2007 | Feb 11, 2009 | Resolved |
| cwa | Permit Violations - Discharge Without a Valid Permit | Sep 1, 2007 | Feb 11, 2009 | Resolved |
| cwa | Permit Violations - Discharge Without a Valid Permit | Sep 1, 2007 | Feb 11, 2009 | Resolved |
| cwa | WW Storm Water Construction - Discharge without a permit | Dec 1, 2006 | Feb 11, 2009 | Resolved |
| cwa | WW Storm Water Construction - Discharge without a permit | Dec 1, 2006 | Feb 11, 2009 | Resolved |
| cwa | Schedule Event unachieved but reported | Dec 30, 2005 | Apr 7, 2006 | Resolved |
| cwa | Schedule Event unachieved and not reported | Dec 30, 2005 | Apr 10, 2006 | Resolved |
| cwa | Schedule Event reported late | Dec 30, 2005 | — | Open |
| cwa | Schedule Event achieved late but reported | Dec 30, 2005 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jan 31, 2003 | Jun 12, 2005 | Resolved |
| cwa | Schedule Event achieved late but reported | Jan 31, 2003 | — | Open |
| cwa | Schedule Event achieved late but reported | Jan 31, 2002 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jan 31, 2002 | Jun 12, 2005 | Resolved |
Discharge Limit Exceedances
Instances where this facility's reported discharge monitoring results exceeded its permitted limits under the Clean Water Act. Exceedance percentage shows how far over the permit limit the discharge was.
| Pollutant | Violation | Reported | Limit | Exceedance | Period | Status |
|---|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 7.23 mg/L | 5.80 | +25% | Dec 2025 | Open |
| Toxicity, final conc toxicity units | DMR, Limited - Numeric Violation | 16.00 toxic | 1.10 | +99,999% | Oct 2023 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 4.39 MGD | 4.32 | +2% | Oct 2023 | Open |
| Toxicity, final conc toxicity units | DMR, Limited - Numeric Violation | 16.00 toxic | 1.60 | +99,999% | Oct 2023 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.01 mg/L | 0.01 | +11% | Apr 2023 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +35% | Apr 2023 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.11 mg/L | 0.05 | +116% | Mar 2022 | Open |
| Solids, total dissolved | DMR, Limited - Numeric Violation | 512.00 mg/L | 500.00 | +2% | Dec 2020 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.01 mg/L | 0.01 | +13% | Oct 2018 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.01 mg/L | 0.01 | +44% | Mar 2018 | Open |
| Sulfate, total [as SO4] | DMR, Limited - Numeric Violation | 262.00 mg/L | 250.00 | +5% | Jul 2017 | Open |
| Sulfate | DMR, Limited - Numeric Violation | 225.00 mg/L | 200.00 | +13% | Aug 2016 | Open |
| Sulfate | DMR, Limited - Numeric Violation | 210.00 mg/L | 200.00 | +5% | Apr 2015 | Open |
| Sulfate | DMR, Limited - Numeric Violation | 206.00 mg/L | 200.00 | +3% | Mar 2015 | Open |
| Sulfate | DMR, Limited - Numeric Violation | 205.00 mg/L | 200.00 | +3% | Jan 2015 | Open |
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.
Administrative - Formal
· Case 10-2024-0067 · May 7, 2024
$15,000
Warning Letter
Clean Air Act
· Case 3602282155 · Sep 8, 2020
Administrative - Formal
· Case 10-2019-0101 · Aug 5, 2019
$240,000
Administrative - Formal
· Case 10-2019-0102 · Aug 5, 2019
$210,000
Administrative - Formal
· Case 10-2019-0113 · Jul 30, 2019
$84,500
Administrative - Formal
· Case 10-2019-0100 · Jul 15, 2019
INITIAL 3008(A) COMPLIANCE
RCRA (Hazardous Waste)
· Case RCRA-AKR000203612-002 · Mar 26, 2013
$7,500
Administrative - Formal
· Case 10-2013-0072 · Mar 26, 2013
$7,500
FINAL 3008(A) COMPLIANCE ORDER
RCRA (Hazardous Waste)
· Case RCRA-AKR000203612-001 · Feb 21, 2013
Administrative - Formal
· Case 10-2011-0018 · Dec 13, 2010
$170,000
Administrative - Formal
· Case 10-2006-0306 · Dec 21, 2006
$18,334
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