Your safety is our top priority

At Columbia Gas, we take safety seriously. We do everything we can to ensure the safety of our customers, communities and employees. Whether we're completing routine maintenance in your neighborhood, inspecting your meter or working with your emergency responders, we're committed to keeping you safe.


How to spot an impostor

Here's what you should do when someone comes to your door.

If someone visits your home or business:

  • Look for their ID – Our employees and contractors wear their IDs visibly.

If you are unsure of a person claiming to be a representative from our company, you can:

  • Call us first – If you are not sure about a phone call, email, program, offer or person claiming to be affiliated with Columbia Gas, please call us at 1-888-460-4332.

Training center employees learning

Partnering with first responders to keep you safe

We’re proud to partner with firefighters, police officers and emergency management officials in our communities. We train hundreds of first responders each year on the basics of gas emergencies and how to respond.


Learn more about Excess Flow Valves

Excess Flow Valves (EFVs) are an additional safety measure that may be installed on certain underground service lines running between the natural gas main (typically located in or near the street, alley or easement) and your gas meter.

We take a number of steps to help ensure safe, reliable natural gas service to your home and business:

  • Regularly inspecting natural gas equipment and rights-of-way
  • Systematically updating and modernizing our system
  • Monitoring operations 24 hours a day, seven days a week
  • Adding odorant to natural gas to produce a “rotten egg” smell if a leak occurs
  • Working with first responders to be prepared for emergencies
  • Reminding everyone to always call 811 before digging

Get your questions answered

Am I responsible for maintaining the EFV?

No. Once installed, the cost to maintain and replace an EFV is the responsibility of Columbia Gas of Kentucky.

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Which service lines are eligible for an EFV?

Many service lines are eligible for an EFV, but here are some conditions under which we would not install an EFV:

  • Gas deliveries on the line exceed 1,000 standard cubic feet per hour
  • The line does not operate at a pressure of 10 pounds per square inch gauge or greater throughout the year
  • There have been contaminants in the gas stream that could interfere with the EFV's operation or cause loss of a service to the customer
  • An EFV could interfere with necessary operation or maintenance activities
  • An EFV meeting regulatory performance standards is not commercially available

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Where can I learn more?

This notice is being provided pursuant to a federal rule. If you are interested in learning more, please call us at 1-800-432-9345.

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If my service line does not have an EFV, can I get one installed now at my own expense?

Although an EFV is not necessary for the normal, safe operation of a gas service line, customers may have one installed on an eligible service line at their own expense. The cost of installing an EFV is estimated to be between $1,000 and $4,000, taking into account work time, materials, excavation and any necessary site restoration activities. If you contact us at 1-800-432-9345, we can assist you in determining if your service line is eligible for installing an EFV. If you decide to proceed with installation of an EFV and meet the eligibility guidelines below, we will work with you to provide it at a mutually agreeable date.

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Has Columbia Gas of Kentucky been installing EFVs on its service lines?

As part of our regular system maintenance and upgrade programs, Columbia Gas of Kentucky has been installing EFVs on all eligible new and replacement service lines since 1994. We also install EFVs as we replace eligible service lines as part of our ongoing system enhancement programs.

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What are EFVs designed to do?

EFVs are designed to automatically restrict the flow of natural gas if a service line is damaged or broken. Although not necessary for the normal, safe operation of a service line, a potential safety benefit is that EFVs automatically minimize or shut off gas flow if a service line is damaged or broken.

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How do I know if I have an EFV on my service line?

If your natural gas service line was installed after 1994, it’s likely that you already have an EFV in place. If you would like to confirm that you have an EFV on your service line, please call us at 1-800-432-9345.

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Have an emergency?

If you smell gas, think you have a gas leak, have carbon monoxide symptoms or have some other emergency situation, go outside and call 911 and then call us at 1-800-432-9515.