Pipeline Safety

This page provides public engagement materials, pipeline safety resources, emergency contact numbers, and safety data sheets for our gathering and processing operations.

Pipeline Safety Information for MPLX Gathering and Processing

MPLX’s Gathering and Processing (G&P) segment transports natural gas, natural gas liquids (NGLs), and crude oil through gathering and transportation systems located throughout the United States. MPLX is committed to public safety, protection of the environment, and compliance with applicable rules and regulations. Public awareness is a key component in educating excavators and our neighbors, and it will help prevent leaks and emergencies.

Public Awareness Information

National Call Before You Dig Number: 811

You can help keep your community and environment safe from a pipeline emergency by following the safety guidelines provided on www.call811.com.

811 is the national call-before-you-dig phone number. Anyone who plans to dig should call 811 or go to their state 811 center’s website before digging to request that the approximate location of buried utilities be marked with paint or flags so that you don’t unintentionally dig into an underground line.

If you are in the state where you plan to dig, dialing 811 will connect you to the state One Call Center. Below are the direct numbers to state One-Call Centers where MPLX has G&P pipeline operations.

Where We Operate

If you have any questions about an MPLX G&P pipeline, email [email protected].

MPLX G&P Emergency Numbers by State

MPLX pipeline markers list the commodity transported and the 24-hour telephone number where a person monitoring our pipeline can be reached at any time. Find the emergency number for your area below.

MPLX G&P Safety Data Sheets

Safety Data Sheets (SDS) provide critical information about our products, including the chemical compositions, potential health or environmental hazards, and safe handling instructions.

Select the product from the links below to access its SDS.

Identifying Pipelines

The pipeline right of way must be kept clear of any buildings, structures, trees, shrubs, excess vegetation, fence posts, electric/telephone poles, or other encroachments that might damage and restrict access to the pipeline. The right of way protects the public and the pipeline. It's against the law for any person to willfully and knowingly deface, damage, remove or destroy any pipeline sign or right-of-way marker.

If you notice any possible encroachments to an MPLX pipeline right of way, or if you need to install a structure near the right of way, please call the state One-Call Center.

Pipeline markers are located along the right of way to help identify the general location of the pipeline. Markers are found in many places along the pipeline and include but are not limited to road crossings, railroad tracks and water ways.  MPLX pipeline markers list the commodity transported and the 24-hour emergency number where a person can be reached at any time.

If you know of a damaged pipeline marker or have seen someone damage or vandalize our pipeline markers, please report it to MPLX.

Digging Near a Pipe

MPLX needs your help to prevent pipeline emergencies. The primary cause of pipeline leaks is damage occurring from digging related activity. If you are working around our pipeline facilities, contact the state One-Call Center at least two days before planned work activity. Some states require two business days not including the date of notice prior to digging.

• Do not make unauthorized use of a right of way.
• Do not disturb the ground until the pipeline is marked and you receive a confirmation the line has been marked.
• Abide by all location markers and instructions provided by MPLX representatives.
• Do not use power equipment or dig within 12’ around the pipeline unless MPLX is on site.
• If the pipeline is damaged or poses a threat to the public, immediately leave the area, on foot in an upwind direction. When you reach a safe area, dial 911 and then call the MPLX 24-hour emergency number.

How to Identify a Leak

www.pipelinesnearby.org

Pipeline markers and signage within the right of way identify the general location of MPLX pipelines. The following items may indicate a gas or liquids pipeline 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:
  • Loud roaring sound
  • Blowing dirt
  • Hole in the ground
  • Dead vegetation
  • Lighter than air
• Items specific to natural gas liquids:
  • Frozen area on or near the pipeline
  • Low-lying fog-like vapor cloud (vapors may cause dizziness or asphyxiation)
  • Dead vegetation
  • Bubbling in pools of water
• Items specific to Crude Oil:
  • Petroleum odor
  • Pooling liquid on the ground
  • Rainbow sheen on the surface of water

Actions If a Pipeline Incident Occurs

General Public and Excavators

• Immediately leave the area, on foot in an upwind direction
• Avoid contacting escaping gas or liquids
• Avoid possible ignition sources
• Abandon all equipment being used in the area
• Do not drive into the area (where the leak or vapor cloud is located)
• Do not light a match, start an engine or automobile or use a phone
• Warn others to stay away from the area
• Do not try to operate any pipeline valves yourself
• From a safe distance dial 911 and then call the MPLX 24-hour emergency number

Public Officials and Emergency Responders

• Evacuate people (homes, businesses, schools, etc.) to an upwind area
• Secure area around the leak
• If the pipeline leak is not burning, take steps to prevent ignition by prohibiting smoking, rerouting traffic, and/or shutting off electricity and residential gas/liquid supply
• If the pipeline is burning, take steps to prevent secondary fires, but do not attempt to extinguish a pipeline fire unless asked to do so by MPLX
• Do not try to operate any pipeline valves yourself
• Call the MPLX 24-hour emergency number as soon as possible
• Administer medical treatment and request additional emergency response assistance as necessary

Learn More About Pipelines

For pipeline safety resources and public awareness information for MPLX subsidiary Marathon Pipe Line’s operations, visit MarathonPipeLine.com.