Non-Compliance
TRI Reporter
Clean Air Act
Clean Water Act
RCRA
VEOLIA ES TECHNICAL SOLUTIONS LLC/ ONYX ENV SERVICES CO
Quick Summary
- •Released 3,193 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
-
9131 E 96TH AVE
HENDERSON, CO 80640
View on map ↗ - County
- ADAMS County
- Industry
- Administrative and Support and Waste Management
- NAICS (North American Industry Classification)
- 562211
- Inspections
- 5 · last Jul 16, 2025
- Total Penalties
- $0 · last Sep 26, 2019
- Registry ID
- 110010751230
How This Compares
#78
of 246 TRI reporters in CO
#59
of 224 TRI reporters in Administrative and Support and Waste Management
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
0
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
3
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)
-38% overall
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 4,038 | — |
| 2016 | 7,630 | +89% |
| 2017 | 3,193 | -58% |
| 2018 | 1,531 | -52% |
| 2019 | 1,055 | -31% |
| 2020 | 331 | -69% |
| 2021 | 1,131 | +242% |
| 2022 | 1,127 | -0% |
| 2023 | 3,791 | +237% |
| 2024 | 2,517 | -34% |
2024
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Acetonitrile | 1,474 | 1,474 | — | — | 17,958,453 | |
| Certain glycol ethers | 741 | 741 | — | — | 34,127,204 | |
| N-Methyl-2-pyrrolidone | 292 | 292 | — | — | 6,253,037 | |
| Toluene | 8 | 8 | — | — | 24,518,381 | |
| Ethylbenzene | 1 | 1 | — | — | 129,317 | ♦ Carcinogen |
2023
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Dichloromethane | — | — | — | — | 6,723,436 | ♦ Carcinogen |
| Certain glycol ethers | 2,748 | 2,748 | — | — | 46,717,862 | |
| Acetonitrile | 788 | 788 | — | — | 13,222,486 | |
| Methanol | 97 | 97 | — | — | 8,205,837 | |
| N,N-Dimethylformamide | 88 | 88 | — | — | 1,396,376 | ♦ Carcinogen |
| Toluene | 43 | 43 | — | — | 10,019,137 | |
| n-Butyl alcohol | 23 | 23 | — | — | 104,294 | |
| N-Methyl-2-pyrrolidone | 3 | 3 | — | — | 3,848,395 |
2022
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| N-Methyl-2-pyrrolidone | 700 | 700 | — | — | 6,220,267 | |
| Methanol | 358 | 358 | — | — | 11,991,718 | |
| Toluene | 41 | 41 | — | — | 20,216,672 | |
| Dichloromethane | 28 | 28 | — | — | 8,097,958 | ♦ Carcinogen |
2021
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Toluene | — | — | — | — | 16,075,435 | |
| N-Methyl-2-pyrrolidone | 990 | 990 | — | — | 6,220,112 | |
| Certain glycol ethers | 85 | 85 | — | — | 40,907,465 | |
| Methanol | 55 | 55 | — | — | 10,139,350 |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Certain glycol ethers | 158 | 158 | — | — | 31,650,331 | |
| Methanol | 138 | 138 | — | — | 9,257,749 | |
| n-Hexane | 35 | 35 | — | — | 8,812,780 |
2019
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| N-Methyl-2-pyrrolidone | 1,055 | 1,055 | — | — | 2,298,427 |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| N-Methyl-2-pyrrolidone | 1,531 | 1,531 | — | — | 545,575 |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| N-Methyl-2-pyrrolidone | 2,431 | 2,431 | — | — | 87,751 | |
| Dichloromethane | 694 | 694 | — | — | 528,409 | ♦ Carcinogen |
| Acetonitrile | 40 | 40 | — | — | 103,079 | |
| Toluene | 29 | 29 | — | — | 3,801,356 |
2016
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| N-Methyl-2-pyrrolidone | 5,307 | 5,307 | — | — | 208,655 | |
| Dichloromethane | 1,177 | 1,177 | — | — | 292,903 | ♦ Carcinogen |
| n-Hexane | 556 | 556 | — | — | 2,219,134 | |
| Methanol | 433 | 433 | — | — | 1,735,651 | |
| Cyclohexane | 137 | 137 | — | — | 155,322 | |
| Ethylene glycol | 14 | 14 | — | — | 145,885 | |
| Toluene | 6 | 6 | — | — | 2,064,150 |
2015
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| N-Methyl-2-pyrrolidone | 2,518 | 2,518 | — | — | 347,026 | |
| Dichloromethane | 1,521 | 1,521 | — | — | 262,495 | ♦ Carcinogen |
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 |
|---|---|---|---|---|
| Certain glycol ethers | — | 1,221,888 | 33,989,954 | 135,230 |
| Toluene | — | 25,954 | 23,643,157 | 873,816 |
| N-Methyl-2-pyrrolidone | — | 134,229 | 6,193,797 | 59,033 |
| Ethylbenzene | — | 26,373 | 115,110 | 14,072 |
| Acetonitrile | — | 444,577 | 17,092,106 | 866,294 |
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 TRAIL LLC
DEER TRAIL, CO
|
Acetonitrile | 1 | — | — | — |
|
US ECOLOGY IDAHO INC SITE B
GRAND VIEW, ID
|
Acetonitrile | 40 | — | — | — |
|
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
|
Acetonitrile | — | — | 106,949 | — |
|
ELEMENTAL ENVIRONMENTAL SOLUTIONS LLC
ARKADELPHIA, AR
|
Acetonitrile | — | — | — | 84,429 |
|
COVANTA TULSA RENEWABLE ENERGY
TULSA, OK
|
Acetonitrile | — | — | 1 | — |
|
ASH GROVE CEMENT CO
CHANUTE, KS
|
Acetonitrile | — | — | 13,194,911 | — |
|
GREEN AMERICA RECYCLING LLC
HANNIBAL, MO
|
Acetonitrile | — | — | 1,964,067 | — |
|
ASH GROVE CEMENT COMPANY
FOREMAN, AR
|
Acetonitrile | — | — | 565,295 | — |
|
VEOLIA TECHNICAL SOLUTIONS LLC
SAUGET, IL
|
Acetonitrile | — | — | — | 726,078 |
|
VEOLIA ES TECHNICAL SOLUTIONS
BEAUMONT, TX
|
Acetonitrile | — | — | — | 39,296 |
|
VEOLIA ES TECHNICAL SOLUTIONS, LLC
MENOMONEE FALLS, WI
|
Acetonitrile | — | 12 | — | — |
|
LONE STAR INDUSTRIES INC
CAPE GIRARDEAU, MO
|
Acetonitrile | — | — | 1,260,262 | — |
|
RINECO CHEMICAL INDUSTRIES, LLC
BENTON, AR
|
Acetonitrile | — | — | 621 | — |
|
VALICOR ENVIRONMENTAL SERVICES
DENVER, CO
|
Acetonitrile | — | — | — | 16,492 |
|
VEOLIA ES TECHNICAL SOLUTIONS LLC
WEST CARROLLTON, OH
|
N-Methyl-2-pyrrolidone | — | 108 | — | — |
|
VEOLIA ES TECHNICAL SOLUTIONS, LLC
NORTH SALT LAKE, UT
|
N-Methyl-2-pyrrolidone | — | — | — | 7 |
|
GREEN AMERICA RECYCLING LLC
HANNIBAL, MO
|
N-Methyl-2-pyrrolidone | — | — | 1,702,034 | — |
|
LONE STAR INDUSTRIES INC
CAPE GIRARDEAU, MO
|
N-Methyl-2-pyrrolidone | — | — | 1,261,141 | — |
|
US ECOLOGY IDAHO INC SITE B
GRAND VIEW, ID
|
N-Methyl-2-pyrrolidone | 84 | — | — | — |
|
ELEMENTAL ENVIRONMENTAL SOLUTIONS LLC
ARKADELPHIA, AR
|
N-Methyl-2-pyrrolidone | — | — | — | 2,443 |
|
RINECO CHEMICAL INDUSTRIES, LLC
BENTON, AR
|
N-Methyl-2-pyrrolidone | — | — | 119 | — |
|
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
|
N-Methyl-2-pyrrolidone | — | — | 18,741 | — |
|
VEOLIA ES TECHNICAL SOLUTIONS
BEAUMONT, TX
|
N-Methyl-2-pyrrolidone | — | — | — | 3,235 |
|
VEOLIA TECHNICAL SOLUTIONS LLC
SAUGET, IL
|
N-Methyl-2-pyrrolidone | — | — | — | 32,200 |
|
VALICOR ENVIRONMENTAL SERVICES
DENVER, CO
|
N-Methyl-2-pyrrolidone | — | — | — | 21,147 |
|
ASH GROVE CEMENT CO
CHANUTE, KS
|
N-Methyl-2-pyrrolidone | — | — | 2,646,441 | — |
|
ASH GROVE CEMENT COMPANY
FOREMAN, AR
|
N-Methyl-2-pyrrolidone | — | — | 565,295 | — |
|
CLEAN HARBORS DEER TRAIL LLC
DEER TRAIL, CO
|
N-Methyl-2-pyrrolidone | 16 | — | — | — |
|
COVANTA TULSA RENEWABLE ENERGY
TULSA, OK
|
N-Methyl-2-pyrrolidone | — | — | 27 | — |
|
EVOQUA WATER TECHNOLOGIES LLC
ROSEVILLE, MN
|
Toluene | — | — | — | 9 |
|
US ECOLOGY NEVADA, INC
BEATTY, NV
|
Toluene | 6 | — | — | — |
|
ASH GROVE CEMENT CO
CHANUTE, KS
|
Toluene | — | — | 13,193,496 | — |
|
HEIDELBERG MATERIALS US CEMENT LLC
LOGANSPORT, IN
|
Toluene | — | — | 5,423,006 | — |
|
US ECOLOGY IDAHO INC SITE B
GRAND VIEW, ID
|
Toluene | 924 | — | — | — |
|
ASH GROVE CEMENT COMPANY
FOREMAN, AR
|
Toluene | — | — | 565,295 | — |
|
CLEAN HARBORS DEER TRAIL LLC
DEER TRAIL, CO
|
Toluene | 49 | — | — | — |
|
COVANTA TULSA RENEWABLE ENERGY
TULSA, OK
|
Toluene | — | — | 33 | — |
|
ELEMENTAL ENVIRONMENTAL SOLUTIONS LLC
ARKADELPHIA, AR
|
Toluene | — | — | — | 27,010 |
|
GREEN AMERICA RECYCLING LLC
HANNIBAL, MO
|
Toluene | — | — | 2,328,798 | — |
|
VEOLIA ES TECHNICAL SOLUTIONS
BEAUMONT, TX
|
Toluene | — | — | — | 48,632 |
|
VEOLIA ES TECHNICAL SOLUTIONS, LLC
MENOMONEE FALLS, WI
|
Toluene | — | 429 | — | — |
|
VEOLIA TECHNICAL SOLUTIONS LLC
SAUGET, IL
|
Toluene | — | — | — | 798,157 |
|
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
|
Toluene | — | — | 94,002 | — |
|
LONE STAR INDUSTRIES INC
CAPE GIRARDEAU, MO
|
Toluene | — | — | 2,016,577 | — |
|
RINECO CHEMICAL INDUSTRIES, LLC
BENTON, AR
|
Toluene | — | — | 21,950 | — |
|
VEOLIA ES TECHNICAL SOLUTIONS, LLC
NORTH SALT LAKE, UT
|
Toluene | — | — | — | 7 |
|
ASH GROVE CEMENT CO
CHANUTE, KS
|
Certain glycol ethers | — | — | 26,374,716 | — |
|
ASH GROVE CEMENT COMPANY
FOREMAN, AR
|
Certain glycol ethers | — | — | 1,130,589 | — |
|
CLEAN HARBORS DEER TRAIL LLC
DEER TRAIL, CO
|
Certain glycol ethers | 159 | — | — | — |
|
ELEMENTAL ENVIRONMENTAL SOLUTIONS LLC
ARKADELPHIA, AR
|
Certain glycol ethers | — | — | — | 49,091 |
|
EVOQUA WATER TECHNOLOGIES LLC
ROSEVILLE, MN
|
Certain glycol ethers | — | — | — | 23 |
|
GREEN AMERICA RECYCLING LLC
HANNIBAL, MO
|
Certain glycol ethers | — | — | 3,289,420 | — |
|
HEIDELBERG MATERIALS US CEMENT LLC
LOGANSPORT, IN
|
Certain glycol ethers | — | — | 677,876 | — |
|
LONE STAR INDUSTRIES INC
CAPE GIRARDEAU, MO
|
Certain glycol ethers | — | — | 2,514,589 | — |
|
RINECO CHEMICAL INDUSTRIES, LLC
BENTON, AR
|
Certain glycol ethers | — | — | 55 | — |
|
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
|
Certain glycol ethers | — | — | 2,708 | — |
|
US ECOLOGY IDAHO INC SITE B
GRAND VIEW, ID
|
Certain glycol ethers | 306 | — | — | — |
|
US ECOLOGY NEVADA, INC
BEATTY, NV
|
Certain glycol ethers | 729 | — | — | — |
|
VALICOR ENVIRONMENTAL SERVICES
DENVER, CO
|
Certain glycol ethers | — | — | — | 42,293 |
|
VEOLIA ES TECHNICAL SOLUTIONS, LLC
NORTH SALT LAKE, UT
|
Certain glycol ethers | — | — | — | 33 |
|
VEOLIA ES TECHNICAL SOLUTIONS, LLC
MENOMONEE FALLS, WI
|
Certain glycol ethers | — | 828 | — | — |
|
VEOLIA TECHNICAL SOLUTIONS LLC
SAUGET, IL
|
Certain glycol ethers | — | — | — | 3,076 |
|
VEOLIA ES TECHNICAL SOLUTIONS
BEAUMONT, TX
|
Certain glycol ethers | — | — | — | 40,713 |
|
CLEAN HARBORS DEER TRAIL LLC
DEER TRAIL, CO
|
Ethylbenzene | 5 | — | — | — |
|
ELEMENTAL ENVIRONMENTAL SOLUTIONS LLC
ARKADELPHIA, AR
|
Ethylbenzene | — | — | — | 734 |
|
GREEN AMERICA RECYCLING LLC
HANNIBAL, MO
|
Ethylbenzene | — | — | 84,413 | — |
|
LONE STAR INDUSTRIES INC
CAPE GIRARDEAU, MO
|
Ethylbenzene | — | — | 9,309 | — |
|
RINECO CHEMICAL INDUSTRIES, LLC
BENTON, AR
|
Ethylbenzene | — | — | 1,716 | — |
|
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
|
Ethylbenzene | — | — | 19,672 | — |
|
US ECOLOGY IDAHO INC SITE B
GRAND VIEW, ID
|
Ethylbenzene | 0 | — | — | — |
|
US ECOLOGY NEVADA, INC
BEATTY, NV
|
Ethylbenzene | 0 | — | — | — |
|
VEOLIA ES TECHNICAL SOLUTIONS, LLC
NORTH SALT LAKE, UT
|
Ethylbenzene | 103 | — | — | — |
|
VEOLIA ES TECHNICAL SOLUTIONS, LLC
MENOMONEE FALLS, WI
|
Ethylbenzene | — | 26 | — | — |
|
VEOLIA TECHNICAL SOLUTIONS LLC
SAUGET, IL
|
Ethylbenzene | — | — | — | 811 |
|
VEOLIA ES TECHNICAL SOLUTIONS
BEAUMONT, TX
|
Ethylbenzene | — | — | — | 12,526 |
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 Recordkeeping and Reporting Applicable to Small and Large Quantity Generators | Jan 14, 2026 | Feb 18, 2026 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Use and Management of Containers | Jul 16, 2025 | Aug 4, 2025 | Resolved |
| rcra | EPA Administered Permit Programs: the HW Permit Program Permit Conditions | Jul 16, 2025 | Aug 4, 2025 | Resolved |
| rcra | Standards Applicable to Transporters of HW: General | Jul 16, 2025 | Aug 4, 2025 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Tank Systems | Jul 16, 2025 | Aug 4, 2025 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: General Facility Standards | Jul 16, 2025 | Aug 4, 2025 | Resolved |
| rcra | Land Disposal Restrictions: General | Jul 16, 2025 | Aug 4, 2025 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: General Facility Standards | Aug 1, 2023 | Aug 28, 2023 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: General Facility Standards | Sep 30, 2019 | Nov 25, 2019 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: General Facility Standards | May 23, 2018 | Sep 30, 2022 | Resolved |
| rcra | EPA Administered Permit Programs: the HW Permit Program Permit Conditions | May 23, 2018 | Sep 30, 2022 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Air Emission Standards for Equipment Leaks | May 23, 2018 | Sep 30, 2022 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Air Emission Standards for Proces Vents | May 23, 2018 | Sep 30, 2022 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Air Emission Standards for Tanks, Surface Impoundments and Containers | May 23, 2018 | Sep 30, 2022 | Resolved |
| rcra | EPA Administered Permit Programs: the HW Permit Program Permit Conditions | Sep 9, 2015 | Feb 23, 2016 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: General Facility Standards | Sep 9, 2015 | Feb 23, 2016 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Use and Management of Containers | Sep 9, 2015 | Feb 23, 2016 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Tank Systems | Sep 9, 2015 | Feb 23, 2016 | Resolved |
| rcra | Standards Applicable to Generators of HW: Exports of HW | May 12, 2006 | Dec 5, 2006 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Sep 25, 1992 | Oct 1, 1992 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Financial Requirements | Apr 28, 1992 | Jun 10, 1992 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Financial Requirements | Apr 25, 1991 | Jun 25, 1991 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: General | Mar 29, 1988 | Nov 1, 1988 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Financial Requirements | Feb 3, 1986 | Mar 10, 1986 | 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.
Administrative - Formal
· Case 08-1997-0219
Administrative - Formal
· Case 08-1997-0246
COMPLIANCE ADVISORY
RCRA (Hazardous Waste)
· Case RCRA-COD980591184-10 · Jan 14, 2026
COMPLIANCE ADVISORY
RCRA (Hazardous Waste)
· Case RCRA-COD980591184-9 · Jul 16, 2025
COMPLIANCE ADVISORY
RCRA (Hazardous Waste)
· Case RCRA-COD980591184-8 · Aug 18, 2023
COMPLIANCE ADVISORY
RCRA (Hazardous Waste)
· Case RCRA-COD980591184-6 · Sep 30, 2019
FINAL 3008(A) COMPLIANCE ORDER
RCRA (Hazardous Waste)
· Case RCRA-COD980591184-7 · Sep 26, 2019
$71,838
COMPLIANCE ADVISORY
RCRA (Hazardous Waste)
· Case RCRA-COD980591184-5 · Aug 27, 2018
Administrative - Formal
· Case 08-2006-0179 · Dec 5, 2006
$2,450
COMPLIANCE ADVISORY
RCRA (Hazardous Waste)
· Case RCRA-COD980591184-001 · Sep 29, 2006
Administrative - Formal
· Case 08-1991-0016 · Aug 6, 1992
$2,000
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-COD980591184-000 · Apr 29, 1992
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-COD980591184-002 · May 8, 1991
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-COD980591184-003 · Feb 10, 1986
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