Two Important Key Messages
- If you smell natural gas, move to a safe location and call Columbia Gas of Ohio at 1-800-344-4077, and your local fire department at 9-1-1
- Anyone planning to do any kind of digging needs to call the Ohio Utilities Protection Service at 8-1-1 at least two business days prior to starting work. Wait for underground utilities to be marked, then dig carefully around underground utilities. The majority of natural gas pipeline incidents are caused by third-party damage to buried lines.
Natural Gas Pipeline Delivery System
- Depending on the type of pipeline involved, Columbia Gas of Ohio inspects its lines at six-month, annual, 3-year and 5-year intervals.
- Our transmission class lines that run through densely populated areas are inspected for leaks twice a year, and undergo integrity assessments every seven years. Integrity assessments are designed to identify pipeline issues before leaks or ruptures occur. They involve pressure tests, smart pigging (inline inspections), and above-ground corrosion inspections to identify coating flaws or areas of inadequate cathodic protection. All problems identified during the assessment are addressed.
- Columbia Gas of Ohio spends approximately $120 million a year replacing main lines and service lines, and another $34 million a year operating and maintaining these lines.
- Columbia Gas of Ohio uses multiple levels of review to determine which pipelines require replacement. This includes computerized analyses and reviews by our engineering and operations departments.
- We operate a staffed control center 24 hours a day, 365 days a year. The control center monitors pressure on our major gas delivery pipelines, and can remotely control or re-route gas flow, as well as immediately dispatch maintenance crews, if necessary.
- Columbia Gas of Ohio has begun a $2 billion, 25-year program to replace bare steel and cast-iron distribution pipe in our system.
the areas where Columbia Gas is working to make pipeline improvements.