Non-Compliance
TRI Reporter
Clean Air Act
Clean Water Act
RINGNECK ENERGY
Quick Summary
- •Released 23,178 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
-
901 REDWOOD AVE
ONIDA, SD 57564
View on map ↗ - County
- SULLY County
- Industry
- Manufacturing
- NAICS (North American Industry Classification)
- 325193
- Inspections
- 5 · last Jun 26, 2025
- Total Penalties
- $0
- Registry ID
- 110070543313
How This Compares
#17
of 84 TRI reporters in SD
#2,619
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.
3
Air (CAA)
Qtrs Non-Compliant
Qtrs Non-Compliant
0
Water (CWA)
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 (2019–2024)
+150% overall
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2019 | 9,274 | — |
| 2020 | 31,790 | +243% |
| 2021 | 30,948 | -3% |
| 2022 | 32,217 | +4% |
| 2023 | 21,488 | -33% |
| 2024 | 23,178 | +8% |
2024
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitric acid | — | — | — | — | — | |
| Ammonia | — | — | — | — | — | |
| Acetaldehyde | 9,936 | 9,936 | — | — | — | ♦ Carcinogen |
| n-Hexane | 4,676 | 4,676 | — | — | — | |
| Acrolein | 4,660 | 4,660 | — | — | — | ♦ Carcinogen |
| Methanol | 2,009 | 2,009 | — | — | — | |
| Formaldehyde | 1,404 | 1,404 | — | — | — | ♦ Carcinogen |
| Toluene | 128 | 128 | — | — | — | |
| Benzene | 125 | 125 | — | — | — | ♦ Carcinogen |
| Xylene (mixed isomers) | 121 | 121 | — | — | — | |
| Ethylbenzene | 121 | 121 | — | — | — | ♦ Carcinogen |
2023
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Toluene | — | — | — | — | — | |
| Xylene (mixed isomers) | — | — | — | — | — | |
| Ethylbenzene | — | — | — | — | — | ♦ Carcinogen |
| Benzene | — | — | — | — | — | ♦ Carcinogen |
| Nitric acid | — | — | — | — | — | |
| Acetaldehyde | 10,085 | 10,085 | — | — | — | ♦ Carcinogen |
| Methanol | 5,047 | 5,047 | — | — | — | |
| Ammonia | 3,527 | 3,527 | — | — | — | |
| n-Hexane | 2,829 | 2,829 | — | — | — |
2022
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Benzene | — | — | — | — | — | ♦ Carcinogen |
| Xylene (mixed isomers) | — | — | — | — | — | |
| Ethylbenzene | — | — | — | — | — | ♦ Carcinogen |
| Toluene | — | — | — | — | — | |
| Acetaldehyde | 15,616 | 15,616 | — | — | — | ♦ Carcinogen |
| Methanol | 7,460 | 7,460 | — | — | — | |
| Ammonia | 5,309 | 5,309 | — | — | — | |
| n-Hexane | 3,832 | 3,832 | — | — | — |
2021
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Toluene | — | — | — | — | — | |
| Xylene (mixed isomers) | — | — | — | — | — | |
| Benzene | — | — | — | — | — | ♦ Carcinogen |
| Ethylbenzene | — | — | — | — | — | ♦ Carcinogen |
| Acetaldehyde | 15,227 | 15,227 | — | — | — | ♦ Carcinogen |
| Methanol | 6,871 | 6,871 | — | — | — | |
| Ammonia | 5,050 | 5,050 | — | — | — | |
| n-Hexane | 3,800 | 3,800 | — | — | — |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Benzene | — | — | — | — | — | ♦ Carcinogen |
| Ethylbenzene | — | — | — | — | — | ♦ Carcinogen |
| Toluene | — | — | — | — | — | |
| Xylene (mixed isomers) | — | — | — | — | — | |
| Acetaldehyde | 15,431 | 15,431 | — | — | — | ♦ Carcinogen |
| Methanol | 7,399 | 7,399 | — | — | — | |
| Ammonia | 5,120 | 5,120 | — | — | — | |
| n-Hexane | 3,840 | 3,840 | — | — | — |
2019
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Benzene | — | — | — | — | — | ♦ Carcinogen |
| Toluene | — | — | — | — | — | |
| Ethylbenzene | — | — | — | — | — | ♦ Carcinogen |
| Xylene (mixed isomers) | — | — | — | — | — | |
| Acetaldehyde | 5,854 | 5,854 | — | — | — | ♦ Carcinogen |
| n-Hexane | 2,411 | 2,411 | — | — | — | |
| Methanol | 1,009 | 1,009 | — | — | — |
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 |
|---|---|---|---|---|
| Ethylbenzene | — | — | — | 596 |
| Xylene (mixed isomers) | — | — | — | 596 |
| n-Hexane | — | — | — | 5,262 |
| Benzene | — | — | — | 596 |
| Toluene | — | — | — | 596 |
| Acrolein | — | — | — | 2 |
| Formaldehyde | — | — | — | 67,138 |
| Methanol | — | — | — | 23,815 |
| Acetaldehyde | — | — | — | 142,615 |
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 | FRV | Jun 2, 2025 | — | Open |
| caa | FRV | Jun 24, 2024 | — | Open |
| caa | FRV | Jun 27, 2023 | — | Open |
| caa | FRV | Sep 16, 2021 | — | Open |
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