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Pipeline markers and signage within the right-of-way identify MarkWest pipeline systems. The following items may indicate a Natural Gas or Natural Gas Liquid leak or failure:
- Liquid and/or gas escaping from the pipeline.
- Hissing or spewing sound.
- Fire at or near the pipeline.
- Any naturally occurring event that may involve the pipeline right-of-way such as soil movement or significant erosion.
- Items specific to Natural Gas.
- Items specific to Natural Gas Liquids.
- Distinct hydrocarbon odor
- Flow of Liquid product
- A low lying fog-like vapor
- An apparent frozen area on or near the pipeline
Reporting of Emergencies:
- Call 911
- Contact MarkWest
MarkWest Emergency Numbers by State:
| Kentucky and West Virginia |
1-877-675-9378 |
| Michigan |
1-800-540-2416 |
| Pennsylvania |
1-866-342-6914 |
| Texas (East Texas) |
1-800-677-6360 |
| Texas (Javelina) |
1-361-289-4960 |
| Oklahoma, New Mexico and Texas (Pinnacle) |
1-800-852-9225 |
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