TRI Reporter
RCRA
ONEOK ROCKIES MIDSTREAM LLC - GRASSLANDS GAS PLANT
Quick Summary
- •Released 12,154,941 lbs of toxic chemicals to the environment in the most recent TRI reporting year.
- •Assessed $0 in total penalties since records began.
- •Reports releases of chemicals classified as known or probable carcinogens.
- Address
-
16001 BENNIE PEER ROAD
ALEXANDER, ND 58831
View on map ↗ - County
- MCKENZIE County
- Industry
- Mining, Quarrying, and Oil and Gas Extraction
- NAICS (North American Industry Classification)
- 211130
- Total Penalties
- $0
- Registry ID
- 110071394077
How This Compares
#2
of 91 TRI reporters in ND
#15
of 555 TRI reporters in Mining, Quarrying, and Oil and Gas Extraction
Ranked by most recent year's total TRI releases.
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 (2022–2024)
-13% overall
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2022 | 13,924,601 | — |
| 2023 | 12,925,831 | -7% |
| 2024 | 12,154,941 | -6% |
2024
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Methanol | — | — | — | — | 5 | |
| Hydrogen sulfide | 12,136,671 | — | — | 12,136,671 | — | |
| n-Hexane | 10,885 | 10,885 | — | — | 280 | |
| Cyclohexane | 4,920 | 4,920 | — | — | 77 | |
| Toluene | 1,687 | 1,687 | — | — | 27 | |
| Benzene | 427 | 427 | — | — | 31 | ♦ Carcinogen |
| Diethanolamine | 351 | — | — | 351 | 34,595 |
2023
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Hydrogen sulfide | 12,911,553 | — | — | 12,911,553 | — | |
| n-Hexane | 8,348 | 8,348 | — | — | 13,174 | |
| Cyclohexane | 3,641 | 3,641 | — | — | 3,202 | |
| Toluene | 1,615 | 1,615 | — | — | 1,564 | |
| Benzene | 384 | 384 | — | — | 1,801 | ♦ Carcinogen |
| Diethanolamine | 282 | — | — | 282 | 28,242 | |
| Methanol | 8 | 8 | — | — | 99 |
2022
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Cyclohexane | — | — | — | — | 1,315 | |
| Hydrogen sulfide | 13,913,881 | — | — | 13,913,881 | — | |
| n-Hexane | 8,503 | 8,503 | — | — | 7,595 | |
| Toluene | 1,614 | 1,614 | — | — | 967 | |
| Benzene | 380 | 380 | — | — | 669 | ♦ Carcinogen |
| Ethylbenzene | 222 | 222 | — | — | 104 | ♦ Carcinogen |
| Methanol | 1 | 1 | — | — | 28 |
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 |
|---|
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 |
|---|---|---|---|---|---|
|
BEAGLE SWD
SIDNEY, MT
|
Toluene | 1 | — | — | — |
|
BEARCE 1 SWD
EAST FAIRVIEW, ND
|
Toluene | 3 | — | — | — |
|
DORE 1 SWD
SIDNEY, MT
|
Toluene | 13 | — | — | — |
|
FLB SPOKANE #3 SWD
SIDNEY, MT
|
Toluene | 8 | — | — | — |
|
RINK SWD
WATFORD CITY, ND
|
Toluene | 2 | — | — | — |
|
KLOSE 1 SWD
CARTWRIGHT, ND
|
Benzene | 1 | — | — | — |
|
BEAGLE SWD
SIDNEY, MT
|
Benzene | 1 | — | — | — |
|
BEARCE 1 SWD
EAST FAIRVIEW, ND
|
Benzene | 3 | — | — | — |
|
FLB SPOKANE #3 SWD
SIDNEY, MT
|
Benzene | 9 | — | — | — |
|
DORE 1 SWD
SIDNEY, MT
|
Benzene | 15 | — | — | — |
|
RINK SWD
WATFORD CITY, ND
|
Benzene | 2 | — | — | — |
|
BEAGLE SWD
SIDNEY, MT
|
Diethanolamine | 1,646 | — | — | — |
|
LANDTECH 201 SWD
SIDNEY, MT
|
Diethanolamine | 176 | — | — | — |
|
JUSTIN SWD 1
TIOGA, ND
|
Diethanolamine | 85 | — | — | — |
|
ROSEBUD SWD
WILLISTON, ND
|
Diethanolamine | 99 | — | — | — |
|
SKAVENGER 11-3 SWD
MANDAREE, ND
|
Diethanolamine | 169 | — | — | — |
|
ALATI ARNEGARD SWD 1
ARNEGARD, ND
|
Diethanolamine | 85 | — | — | — |
|
LEVANG SWD
MANDAREE, ND
|
Diethanolamine | 85 | — | — | — |
|
13 MILE SWD
SPRINGBROOK, ND
|
Diethanolamine | 35 | — | — | — |
|
RICE #1 SWD
KILLDEER, ND
|
Diethanolamine | 85 | — | — | — |
|
BEARCE 1 SWD
EAST FAIRVIEW, ND
|
Diethanolamine | 3,592 | — | — | — |
|
DORE 1 SWD
SIDNEY, MT
|
Diethanolamine | 16,384 | — | — | — |
|
FLB SPOKANE #3 SWD
SIDNEY, MT
|
Diethanolamine | 9,528 | — | — | — |
|
KLOSE 1 SWD
CARTWRIGHT, ND
|
Diethanolamine | 571 | — | — | — |
|
RINK SWD
WATFORD CITY, ND
|
Diethanolamine | 1,905 | — | — | — |
|
INDIAN HILLS DISPOSAL
ALEXANDER, ND
|
Diethanolamine | 150 | — | — | — |
|
BEARCE 1 SWD
EAST FAIRVIEW, ND
|
Cyclohexane | 8 | — | — | — |
|
DORE 1 SWD
SIDNEY, MT
|
Cyclohexane | 38 | — | — | — |
|
FLB SPOKANE #3 SWD
SIDNEY, MT
|
Cyclohexane | 22 | — | — | — |
|
KLOSE 1 SWD
CARTWRIGHT, ND
|
Cyclohexane | 1 | — | — | — |
|
RINK SWD
WATFORD CITY, ND
|
Cyclohexane | 4 | — | — | — |
|
BEAGLE SWD
SIDNEY, MT
|
Cyclohexane | 4 | — | — | — |
|
BEARCE 1 SWD
EAST FAIRVIEW, ND
|
Methanol | 1 | — | — | — |
|
DORE 1 SWD
SIDNEY, MT
|
Methanol | 3 | — | — | — |
|
FLB SPOKANE #3 SWD
SIDNEY, MT
|
Methanol | 1 | — | — | — |
|
ALATI ARNEGARD SWD 1
ARNEGARD, ND
|
n-Hexane | 1 | — | — | — |
|
BEAGLE SWD
SIDNEY, MT
|
n-Hexane | 13 | — | — | — |
|
BEARCE 1 SWD
EAST FAIRVIEW, ND
|
n-Hexane | 29 | — | — | — |
|
DORE 1 SWD
SIDNEY, MT
|
n-Hexane | 133 | — | — | — |
|
FLB SPOKANE #3 SWD
SIDNEY, MT
|
n-Hexane | 77 | — | — | — |
|
INDIAN HILLS DISPOSAL
ALEXANDER, ND
|
n-Hexane | 1 | — | — | — |
|
JUSTIN SWD 1
TIOGA, ND
|
n-Hexane | 1 | — | — | — |
|
KLOSE 1 SWD
CARTWRIGHT, ND
|
n-Hexane | 5 | — | — | — |
|
LANDTECH 201 SWD
SIDNEY, MT
|
n-Hexane | 1 | — | — | — |
|
LEVANG SWD
MANDAREE, ND
|
n-Hexane | 1 | — | — | — |
|
RICE #1 SWD
KILLDEER, ND
|
n-Hexane | 1 | — | — | — |
|
RINK SWD
WATFORD CITY, ND
|
n-Hexane | 15 | — | — | — |
|
ROSEBUD SWD
WILLISTON, ND
|
n-Hexane | 1 | — | — | — |
|
SKAVENGER 11-3 SWD
MANDAREE, ND
|
n-Hexane | 1 | — | — | — |
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