What does HEP do to ensure safe operations?

• Pipeline companies are responsible for the safety of their operations. Besides meeting federal and state safety and environmental standards, the Pipeline and Hazardous Materials Safety Administration oversees and regulates pipeline system operations from the design stage of a project to construction, maintenance and operations.

To ensure public safety, HEP continuously monitors our systems through a combination of safety programs:

• Low-flying aircraft regularly patrol pipeline routes
• Visual ground inspections
• Computerized systems report and record line pressure and flow 24 hours per day at our manned control center

Holly Energy Partners is committed to ensuring safe operations in the communities in which we do business. Our commitment to pipeline safety includes maintaining company Emergency Response Plans, as well as establishing and maintaining liaison with local Emergency Responders and Public Officials. Our primary goal is to ensure public safety while promoting a coordinated effort when responding to emergency and security situations.

KEY ELEMENTS OF EMERGENCY RESPONSE PLANS

Notification
Notify the pipeline company immediately in the event of an incident. The phone number on the pipeline marker will connect you with the company's 24-hour emergency control center.

Isolation and denial of access/entry
Do not allow anyone to enter the hazard area. Use banner tape, vehicles or other resources from emergency response agencies as necessary.

Incident command system
The pipeline company will establish a command post as a central clearinghouse for all emergency information. You will receive further instruction from the pipeline's Incident Commander. Pipeline operators will take necessary operating actions - starting and stopping equipment, closing and opening valves, and other steps - to minimize the impact of the leak.

Emergency Response Plans
Emergency Response Plans have been developed by the pipeline company to work in conjunction with existing emergency plans developed by federal, state and local authorities. To further coordinate, these plans are presented to the local emergency planning committee or other local emergency agencies.

How do I identify pipelines?

The following information will help you identify the general location of a pipeline.

• Pipelines are marked by above ground signs to indicate the general location, product type and the name and contact information of the company that operates the pipeline.
• Markers do not provide information on the depth or number of pipelines in the vicinity and do not indicate the exact position of the pipeline.
• Pipelines may not follow a straight path between markers.
• Pipeline markers are generally yellow, black and red in color. If a marker has been knocked down, please call us so we can replace it.

Pipeline markers are generally yellow, black and red. Look for these signs:

HOW TO RECOGNIZE A LEAK

Leaks from pipelines are unusual, but we want you to know what to do in the unlikely event one occurs. Your senses of sight, hearing and smell are the best ways to recognize a pipeline leak.

Look

• For a dense white cloud or fog
• Discolored or dead vegetation
• A pool of liquid on the ground
• Flames coming from the ground or an exposed pipeline valve
• A slight mist of ice or frozen area on the pipeline
• Continuous bubbling in wet, flooded area
• A rainbow or a sheen on water

Smell

• An unusual odor or scent of gas or petroleum

Listen

• An unusual hissing or roaring noise coming from a pipeline