Non-Compliance
TRI Reporter
Clean Air Act
Clean Water Act
RCRA
DENCO II, LLC
Quick Summary
- •Released 24,306 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 $291,694 in total penalties since records began.
- •Reports releases of chemicals classified as known or probable carcinogens.
- Address
-
227 COUNTY ROAD 22 S
MORRIS, MN 56267
View on map ↗ - County
- STEVENS County
- Industry
- Manufacturing
- NAICS (North American Industry Classification)
- 325193
- Inspections
- 4 · last Jan 2, 2025
- Total Penalties
- $291,694 · last Dec 26, 2024
- Registry ID
- 110070239917
How This Compares
#70
of 421 TRI reporters in MN
#2,553
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.
4
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)
-67% overall
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 32,333 | — |
| 2016 | 21,522 | -33% |
| 2017 | 24,306 | +13% |
| 2018 | 27,249 | +12% |
| 2019 | 0 | -100% |
| 2020 | 13,844 | — |
| 2021 | 15,104 | +9% |
| 2022 | 13,138 | -13% |
| 2023 | 9,932 | -24% |
| 2024 | 10,696 | +8% |
2024
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Benzene | — | — | — | — | — | ♦ Carcinogen |
| Toluene | — | — | — | — | — | |
| Cyclohexane | — | — | — | — | — | |
| Acetaldehyde | 4,706 | 4,706 | — | — | — | ♦ Carcinogen |
| Formic acid | 3,807 | 3,807 | — | — | — | |
| n-Hexane | 2,183 | 2,183 | — | — | — |
2023
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Toluene | — | — | — | — | — | |
| Benzene | — | — | — | — | — | ♦ Carcinogen |
| Cyclohexane | — | — | — | — | — | |
| Acetaldehyde | 4,098 | 4,098 | — | — | — | ♦ Carcinogen |
| Formic acid | 3,740 | 3,740 | — | — | — | |
| n-Hexane | 2,094 | 2,094 | — | — | — |
2022
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Cyclohexane | — | — | — | — | — | |
| Benzene | — | — | — | — | — | ♦ Carcinogen |
| Toluene | — | — | — | — | — | |
| Acetaldehyde | 7,366 | 7,366 | — | — | — | ♦ Carcinogen |
| Formic acid | 3,658 | 3,658 | — | — | — | |
| n-Hexane | 2,114 | 2,114 | — | — | — |
2021
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Toluene | — | — | — | — | — | |
| Xylene (mixed isomers) | — | — | — | — | — | |
| Cyclohexane | — | — | — | — | — | |
| Benzene | — | — | — | — | — | ♦ Carcinogen |
| Acetaldehyde | 9,094 | 9,094 | — | — | — | ♦ Carcinogen |
| Formic acid | 3,703 | 3,703 | — | — | — | |
| n-Hexane | 2,307 | 2,307 | — | — | — |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Benzene | — | — | — | — | — | ♦ Carcinogen |
| Cyclohexane | — | — | — | — | — | |
| Toluene | — | — | — | — | — | |
| Acetaldehyde | 5,826 | 5,826 | — | — | — | ♦ Carcinogen |
| Formic acid | 3,485 | 3,485 | — | — | — | |
| n-Hexane | 1,812 | 1,812 | — | — | — | |
| Formaldehyde | 1,064 | 1,064 | — | — | — | ♦ Carcinogen |
| Methanol | 1,010 | 1,010 | — | — | — | |
| Acrolein | 647 | 647 | — | — | — | ♦ Carcinogen |
2019
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Cyclohexane | — | — | — | — | — |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Toluene | — | — | — | — | — | |
| Benzene | — | — | — | — | — | ♦ Carcinogen |
| Cyclohexane | — | — | — | — | — | |
| Acetaldehyde | 18,203 | 18,203 | — | — | — | ♦ Carcinogen |
| Formic acid | 7,492 | 7,492 | — | — | — | |
| n-Hexane | 1,554 | 1,554 | — | — | — |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Cyclohexane | — | — | — | — | — | |
| Toluene | — | — | — | — | — | |
| Benzene | — | — | — | — | — | ♦ Carcinogen |
| Acetaldehyde | 15,600 | 15,600 | — | — | — | ♦ Carcinogen |
| Formic acid | 7,199 | 7,199 | — | — | — | |
| n-Hexane | 1,507 | 1,507 | — | — | — |
2016
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Benzene | — | — | — | — | — | ♦ Carcinogen |
| Acetaldehyde | 10,969 | 10,969 | — | — | — | ♦ Carcinogen |
| Formic acid | 7,612 | 7,612 | — | — | — | |
| Formaldehyde | 1,486 | 1,486 | — | — | — | ♦ Carcinogen |
| n-Hexane | 1,455 | 1,455 | — | — | — |
2015
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Benzene | — | — | — | — | — | ♦ Carcinogen |
| Acetaldehyde | 18,714 | 18,714 | — | — | — | ♦ Carcinogen |
| Formic acid | 7,712 | 7,712 | — | — | — | |
| Ammonia | 2,553 | 2,553 | — | — | — | |
| Formaldehyde | 1,796 | 1,796 | — | — | — | ♦ Carcinogen |
| n-Hexane | 1,558 | 1,558 | — | — | — |
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 |
|---|---|---|---|---|
| Acetaldehyde | — | — | — | 76,121 |
| n-Hexane | — | — | — | 9,756 |
| Formic acid | — | — | — | 92,844 |
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 | HPV | Apr 30, 2024 | Jan 29, 2025 | Resolved |
| caa | FRV | Sep 23, 2020 | — | Open |
| caa | HPV | Dec 4, 2019 | Aug 17, 2020 | Resolved |
| caa | FRV | Nov 7, 2017 | — | Open |
| caa | FRV | Jun 28, 2016 | — | 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 |
|---|---|---|---|---|---|---|
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 103.00 mg/L | 25.00 | +312% | Aug 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 32.00 mg/L | 30.00 | +7% | Aug 2025 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 192.00 mg/L | 43.00 | +347% | Aug 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 33.00 mg/L | 30.00 | +10% | Aug 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 173.00 mg/L | 52.00 | +233% | Jul 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 102.00 mg/L | 30.00 | +240% | Jul 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 CWA Penalty AO
Clean Water Act
· Case MN-N00000906
Administrative - Formal
Clean Air Act
· Case 3604258980 · Dec 26, 2024
$14,800
State CWA Penalty AO
Clean Water Act
· Case MN-APO08162021 · Aug 16, 2021
$19,894
Administrative - Formal
Clean Air Act
· Case 3602428577 · Jan 15, 2021
$2,760
Administrative - Formal
Clean Air Act
· Case 3602270438 · Jun 10, 2020
$9,352
Warning Letter
Clean Air Act
· Case 3601502133 · Jun 19, 2018
State CWA Penalty AO
Clean Water Act
· Case MN-STIP012418 · Jan 24, 2018
$22,141
Administrative - Formal
Clean Air Act
· Case 3601074653 · Feb 17, 2017
$10,500
Judicial
· Case 05-2003-0266 · Jun 23, 2003
$34,975
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