Non-Compliance
TRI Reporter
Clean Air Act
Clean Water Act
RCRA
EL DORADO CHEMICAL CO
Quick Summary
- •Released 418,042 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 $43,240 in total penalties since records began.
- •Reports releases of chemicals classified as known or probable carcinogens.
- Address
-
4500 N WEST AVE
EL DORADO, AR 71730
View on map ↗ - County
- UNION County
- Industry
- Manufacturing
- NAICS (North American Industry Classification)
- 325311
- Inspections
- 6 · last Jun 12, 2025
- Total Penalties
- $43,240 · last Aug 5, 2025
- Registry ID
- 110000746373
How This Compares
#21
of 316 TRI reporters in AR
#436
of 16,877 TRI reporters in Manufacturing
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.
2
Air (CAA)
Qtrs Non-Compliant
Qtrs Non-Compliant
10
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)
+246% overall
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 227,483 | — |
| 2016 | 587,927 | +158% |
| 2017 | 418,042 | -29% |
| 2018 | 948,979 | +127% |
| 2019 | 5,821 | -99% |
| 2020 | 896,364 | +15299% |
| 2021 | 561,978 | -37% |
| 2022 | 507,167 | -10% |
| 2023 | 1,026,706 | +102% |
| 2024 | 786,190 | -23% |
2024
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 444,638 | — | 444,638 | — | — | |
| Ammonia | 340,675 | 303,435 | 37,240 | — | — | |
| Nitric acid | 877 | 877 | — | — | — |
2023
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 621,866 | — | 621,866 | — | — | |
| Ammonia | 404,546 | 346,019 | 58,527 | — | — | |
| Nitric acid | 295 | 295 | — | — | — |
2022
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Ammonia | 336,623 | 325,444 | 11,179 | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 169,960 | — | 169,960 | — | — | |
| Nitric acid | 584 | 584 | — | — | 4,791 |
2021
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Ammonia | 425,230 | 418,650 | 6,580 | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 136,215 | — | 136,215 | — | — | |
| Nitric acid | 533 | 533 | — | — | — |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Ammonia | 715,321 | 708,600 | 6,721 | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 150,157 | — | 150,157 | — | — | |
| Methanol | 22,670 | 22,670 | — | — | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 6,828 | 6,828 | — | — | — | |
| Nitric acid | 878 | 878 | — | — | 138,100 | |
| Copper compounds | 255 | 255 | — | — | — | |
| Nickel compounds | 255 | 255 | — | — | — | ♦ Carcinogen |
2019
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 5,821 | 5,821 | — | — | — |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Ammonia | 725,726 | 713,617 | 12,109 | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 162,252 | — | 162,252 | — | — | |
| Methanol | 52,990 | 52,990 | — | — | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 6,263 | 6,263 | — | — | — | |
| Nitric acid | 1,238 | 1,238 | — | — | — | |
| Copper compounds | 255 | 255 | — | — | — | |
| Nickel compounds | 255 | 255 | — | — | — | ♦ Carcinogen |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Ammonia | 255,183 | 248,732 | 6,451 | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 120,123 | — | 120,123 | — | — | |
| Methanol | 34,670 | 34,670 | — | — | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 6,318 | 6,318 | — | — | — | |
| Nitric acid | 1,238 | 1,238 | — | — | — | |
| Copper compounds | 255 | 255 | — | — | — | |
| Nickel compounds | 255 | 255 | — | — | — | ♦ Carcinogen |
2016
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Ammonia | 451,880 | 446,597 | 5,283 | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 128,490 | — | 128,490 | — | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 6,318 | 6,318 | — | — | — | |
| Nitric acid | 1,238 | 1,238 | — | — | — |
2015
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 109,526 | — | 109,526 | — | — | |
| Ammonia | 100,234 | 95,155 | 5,079 | — | — | |
| Nitric acid | 10,637 | 10,637 | — | — | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 7,086 | 7,086 | — | — | — |
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 |
|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | — | — | — | 44,464 |
| Ammonia | — | — | — | 37,099 |
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 |
| caa | Linked to Viol. Below | — | — | Open |
| caa | Linked to Viol. Below | — | — | Open |
| caa | Linked to Viol. Below | — | — | Open |
| caa | Linked to Viol. Below | — | — | Open |
| caa | — | — | — | Open |
| caa | Linked to Viol. Below | — | — | Open |
| caa | — | — | — | Open |
| caa | Linked to Viol. Below | — | — | Open |
| caa | Linked to Viol. Below | — | — | Open |
| caa | Linked to Viol. Below | — | — | Open |
| cwa | Schedule Event achieved late but reported | Dec 15, 2025 | — | Open |
| cwa | Schedule Event reported late | Dec 15, 2025 | — | Open |
| cwa | Schedule Event achieved late but reported | Sep 5, 2025 | — | Open |
| cwa | Schedule Event reported late | Sep 5, 2025 | — | Open |
| cwa | Schedule Event achieved late but reported | Sep 4, 2025 | — | Open |
| rcra | Standards for Universal Waste Management: Standards for Small Quantity Handlers | May 15, 2025 | Jun 13, 2025 | Resolved |
| rcra | Standards Applicable to Generators of HW: Preparedness. Prevention, and Emergency Procedures for LQGs | May 15, 2025 | Jun 13, 2025 | Resolved |
| rcra | State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements | May 15, 2025 | Jun 13, 2025 | Resolved |
| caa | FRV | Jun 25, 2024 | — | Open |
| caa | FRV | Nov 1, 2023 | — | Open |
| cwa | Schedule Event unachieved and not reported | Oct 31, 2023 | Dec 14, 2023 | Resolved |
| cwa | Schedule Event achieved late but reported | Oct 31, 2023 | — | Open |
| cwa | Schedule Event reported late | Oct 31, 2023 | — | Open |
| cwa | Schedule Event unachieved but reported | Oct 31, 2023 | Dec 14, 2023 | Resolved |
| cwa | Permit Violations - Discharge Without a Valid Permit | Sep 29, 2022 | Aug 5, 2025 | Resolved |
| cwa | Management Practice Violations - Failure to Maintain Records | Sep 29, 2022 | Aug 5, 2025 | Resolved |
| cwa | Effluent Violations - Narrative Effluent Violation | Sep 29, 2022 | Aug 5, 2025 | Resolved |
| cwa | Schedule Event achieved late but reported | Oct 31, 2019 | — | Open |
| caa | FRV | Feb 19, 2019 | — | Open |
| cwa | Schedule Event achieved late but reported | Oct 31, 2018 | — | Open |
| caa | HPV | Apr 19, 2018 | Sep 21, 2018 | Resolved |
| cwa | Schedule Event achieved late but reported | Apr 1, 2018 | — | Open |
| caa | HPV | May 15, 2017 | Jun 24, 2021 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Jun 19, 2012 | Jul 20, 2012 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Preparedness and Prevention | Jun 19, 2012 | Jul 31, 2012 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Use and Management of Containers | Jun 19, 2012 | Jul 20, 2012 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Contingency Plan and Emergency Procedures | Jun 19, 2012 | Jul 31, 2012 | Resolved |
| rcra | Standards for Universal Waste Management: Standards for Small Quantity Handlers | Jun 19, 2012 | Jul 20, 2012 | Resolved |
| rcra | Standards for Used Oil: Generators | Jun 19, 2012 | Jul 20, 2012 | Resolved |
| cwa | WW Storm Water Non-Construction - Discharge without a permit | Mar 8, 2010 | — | Open |
| cwa | Schedule Event achieved late but reported | Feb 12, 2010 | — | Open |
| cwa | Schedule Event unachieved and not reported | Dec 31, 2009 | Oct 18, 2012 | Resolved |
| cwa | Schedule Event achieved late but reported | Dec 31, 2009 | — | Open |
| cwa | Schedule Event reported late | Dec 31, 2009 | — | Open |
| cwa | Schedule Event unachieved and not reported | Dec 31, 2009 | May 28, 2010 | Resolved |
| cwa | Schedule Event unachieved but reported | Dec 31, 2009 | May 26, 2010 | Resolved |
| cwa | Schedule Event reported late | Dec 31, 2009 | — | Open |
| cwa | Schedule Event achieved late but reported | Dec 31, 2009 | — | Open |
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, nitrate total [as N] | DMR, Limited - Numeric Violation | 1,465.12 kg/d | 263.91 | +455% | Jan 2026 | Open |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 1,581.23 kg/d | 712.01 | +122% | Jan 2026 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 1,279.40 kg/d | 274.67 | +366% | Jan 2026 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 12.00 mg/L | 10.00 | +20% | Jan 2026 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 1,135.02 kg/d | 120.40 | +843% | Jan 2026 | Open |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 1,664.40 kg/d | 263.91 | +531% | Dec 2025 | Resolved |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 1,953.45 kg/d | 712.01 | +174% | Dec 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 1,504.35 kg/d | 274.67 | +448% | Dec 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 1,267.15 kg/d | 120.40 | +952% | Dec 2025 | Resolved |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 2,031.72 kg/d | 712.01 | +185% | Nov 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 1,806.77 kg/d | 274.67 | +558% | Nov 2025 | Open |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 1,797.40 kg/d | 263.91 | +581% | Nov 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 1,328.69 kg/d | 120.40 | +1,004% | Nov 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 190.00 mg/L | 18.00 | +956% | Oct 2025 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 180.02 kg/d | 56.80 | +217% | Oct 2025 | Open |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 2,416.00 kg/d | 263.91 | +815% | Oct 2025 | Resolved |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 1,324.15 kg/d | 263.91 | +402% | Oct 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 21.00 mg/L | 7.50 | +180% | Oct 2025 | Open |
| Whole Effluent Toxicity [WET] - C. dubia | DMR, Limited - Numeric Violation | 42.00 % | 100.00 | +58% | Oct 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 0.64 kg/d | 0.50 | +27% | Oct 2025 | Open |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 2,180.63 kg/d | 712.01 | +206% | Oct 2025 | Open |
| Chloride [as Cl] | DMR, Limited - Numeric Violation | 69.00 mg/L | 57.00 | +21% | Oct 2025 | Open |
| Whole Effluent Toxicity [WET] - C. dubia | DMR, Limited - Numeric Violation | 42.00 % | 100.00 | +58% | Oct 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 180.00 mg/L | 12.00 | +1,400% | Oct 2025 | Resolved |
| Whole Effluent Toxicity [WET] - P. promelas | DMR, Limited - Numeric Violation | 32.00 % | 80.00 | +99,999% | Oct 2025 | Open |
| Solids, total dissolved | DMR, Limited - Numeric Violation | 640.00 mg/L | 356.00 | +80% | Oct 2025 | Open |
| Chloride [as Cl] | DMR, Limited - Numeric Violation | 69.00 mg/L | 38.00 | +82% | Oct 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 0.64 kg/d | 0.32 | +100% | Oct 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 21.00 mg/L | 5.00 | +320% | Oct 2025 | Resolved |
| Solids, total dissolved | DMR, Limited - Numeric Violation | 640.00 mg/L | 237.00 | +170% | Oct 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 1,189.50 kg/d | 120.40 | +888% | Oct 2025 | Resolved |
| Whole Effluent Toxicity [WET] - C. dubia | DMR, Limited - Numeric Violation | 32.00 % | 80.00 | +99,999% | Oct 2025 | Open |
| Whole Effluent Toxicity [WET] - C. dubia | DMR, Limited - Numeric Violation | 32.00 % | 80.00 | +99,999% | Oct 2025 | Open |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 2,436.30 kg/d | 712.01 | +242% | Oct 2025 | Open |
| Whole Effluent Toxicity [WET] - P. promelas | DMR, Limited - Numeric Violation | 32.00 % | 80.00 | +99,999% | Oct 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 1,800.26 kg/d | 274.67 | +555% | Oct 2025 | Open |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 6,576.74 kg/d | 712.01 | +824% | Sep 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 1,314.53 kg/d | 274.67 | +379% | Sep 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 180.00 mg/L | 18.00 | +900% | Sep 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 732.49 kg/d | 120.40 | +508% | Sep 2025 | Resolved |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.22 mg/L | 0.12 | +90% | Sep 2025 | Resolved |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 1,062.90 kg/d | 263.91 | +303% | Sep 2025 | Resolved |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 39.98 kg/d | 37.86 | +6% | Sep 2025 | Resolved |
| Solids, total dissolved | DMR, Limited - Numeric Violation | 920.00 mg/L | 237.00 | +288% | Sep 2025 | Resolved |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 2,400.00 MPN/100mL | 2,000.00 | +99,999% | Sep 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 220.00 mg/L | 12.00 | +1,733% | Sep 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 155.00 mg/L | 12.00 | +1,192% | Sep 2025 | Resolved |
| Solids, total dissolved | DMR, Limited - Numeric Violation | 1,000.00 mg/L | 750.00 | +33% | Sep 2025 | Open |
| Chloride [as Cl] | DMR, Limited - Numeric Violation | 71.00 mg/L | 57.00 | +25% | Sep 2025 | Open |
| Nitrogen, nitrate total [as N] | DMR, Limited - Numeric Violation | 1,798.82 kg/d | 712.01 | +153% | Sep 2025 | 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.
State Administrative Order of Consent
Clean Water Act
· Case AR-46304865702849159 · Aug 5, 2025
$35,000
Administrative - Formal
Clean Air Act
· Case 3604451581 · Jul 1, 2025
$4,800
Administrative - Formal
Clean Air Act
· Case 3604059790 · Aug 6, 2024
$1,440
Notice of Violation
Clean Air Act
· Case 3604021360 · Jun 28, 2024
Notice of Violation
Clean Air Act
· Case 3603779285 · Aug 9, 2023
Administrative - Formal
· Case 06-2023-1774 · Jul 21, 2023
Administrative - Formal
Clean Air Act
· Case 3603279734 · Jul 6, 2022
$2,000
Administrative - Formal
· Case 06-2022-3344 · Jul 6, 2022
$2,000
Administrative - Formal
Clean Air Act
· Case 3602420801 · Feb 24, 2021
$9,840
Administrative - Formal
Clean Air Act
· Case 3601991007 · Sep 30, 2019
$33,600
Notice of Violation
Clean Air Act
· Case 3601749393 · Feb 15, 2019
State Administrative Order of Consent
Clean Water Act
· Case AR-7890-CAO · Nov 25, 2018
$124,000
Administrative - Formal
Clean Air Act
· Case 3601491021 · Jul 9, 2018
$3,375
Notice of Violation
Clean Air Act
· Case 3601014095 · Jun 19, 2017
Administrative - Formal
Clean Air Act
· Case 3600931311 · Nov 16, 2016
$0
Judicial
· Case 06-2011-3401 · May 28, 2014
$478,125
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-ARD001700657-001 · Jun 19, 2012
Administrative - Formal
· Case 06-2011-1746 · May 24, 2012
$100,000
Administrative - Formal
· Case 06-2010-1753 · Jan 11, 2010
State Administrative Order of Consent
Clean Water Act
· Case AR-5660 · Aug 10, 2008
$9,632
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