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Public Safety > Pipeline Safety >
The UTC maintains maps which show the routes of hazardous liquid pipelines and high-pressure natural gas pipelines (>250 psig) to meet the needs of first responders and local governments. The UTC offers free map atlases by county to interested fire department, emergency management agencies and local governments upon request.
Under state law RCW 19.122, you MUST call1-800-424-5555 or 811 two business days before you do any digging, even on your own property. Locating your underground utilities is for your safety and is free to you. This timely call will allow utility companies to clearly mark the ground under which their facilities are located BEFORE YOU DIG.
There are substantial penalties involved if damage occurs to underground utilities due to this law.
These maps DO NOT show ANY underground power lines, telephone lines, cable lines or water lines.
They DO NOT show ANY underground facilities going to a home or building.
Moreover, the location of a pipeline can change, and these maps may not reflect that location change. If you choose to use these maps, you do so entirely at your own liability and safety risk.
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