Facility Profile

ONEOK ROCKIES MIDSTREAM LLC - GRASSLANDS GAS PLANT
ONEOK INC
Facility Summary
16001 BENNIE PEER ROAD, ALEXANDER, ND, 58831 (MCKENZIE)
In 2022, this facility made toxic releases of:
- Concern to the air
- Onsite air release of Clean Air Act chemicals
- Onsite release of known carcinogens
This facility reported the following greenhouse gas releases for 2022:
18-month enforcement and compliance history summary for this facility:
Facility: No Violation Identified
Clean Air Act:
Clean Water Act:
Resource Conservation and Recovery Act : No Violation Identified
Total Penalties: $0
Last Penalty: N/A
2022 Toxic Substance Releases
Substance Total
(lbs)
Air
(lbs)
Water
(lbs)
Land
(lbs)
UnInj
(lbs)
Offsite
(lbs)
HYDROGEN SULFIDE
CASRN: 6/4/83
13,913,881.00 0.00 0.00 0.00 13,913,881.00 0.00
Substance Total Air Water Land UnInj Offsite
N-HEXANE
CASRN: 110-54-3
16,098.00 8,503.00 0.00 0.00 0.00 7,595.00
This substance is a developmental or reproductive toxin. (Source: California Proposition 65)
This substance is an endocrine disruptor. (Source: TEDX (The Endocrine Disruption eXchange))
This substance is a clean air act chemical. (Source: U.S. EPA Toxics Release Inventory (TRI))
Substance Total Air Water Land UnInj Offsite
TOLUENE
CASRN: 108-88-3
2,581.00 1,614.00 0.00 0.00 0.00 967.00
This substance is a developmental or reproductive toxin. (Source: California Proposition 65)
This substance is an endocrine disruptor. (Source: TEDX (The Endocrine Disruption eXchange))
This substance is a clean air act chemical. (Source: U.S. EPA Toxics Release Inventory (TRI))
Substance Total Air Water Land UnInj Offsite
CYCLOHEXANE
CASRN: 110-82-7
1,315.00 0.00 0.00 0.00 0.00 1,315.00
Substance Total Air Water Land UnInj Offsite
BENZENE
CASRN: 71-43-2
1,049.00 380.00 0.00 0.00 0.00 669.00
Substance Total Air Water Land UnInj Offsite
ETHYLBENZENE
CASRN: 100-41-4
326.00 222.00 0.00 0.00 0.00 104.00
Substance Total Air Water Land UnInj Offsite
METHYL ALCOHOL
CASRN: 67-56-1
28.87 1.00 0.00 0.00 0.00 27.87
This substance is a developmental or reproductive toxin. (Source: California Proposition 65)
This substance is an endocrine disruptor. (Source: TEDX (The Endocrine Disruption eXchange))
This substance is a clean air act chemical. (Source: U.S. EPA Toxics Release Inventory (TRI))
Substance Total Air Water Land UnInj Offsite