National Pipeline Mapping System

by Sabrina I. Pacifici on March 1, 2013

The NPMS Public Map Viewer enables the user to view National Pipeline Mapping System (NPMS) data one county at a time. NPMS data consists of gas transmission pipelines and hazardous liquid trunklines. It does not contain gathering or distribution pipelines, such as lines which deliver gas to a customer’s home. Therefore, not all pipelines in an area will be visible in the Public Map Viewer. NPMS data is for reference purposes only. It should never be used as a substitute for contacting a one-call center prior to excavation activities. Please call 811 before any digging occurs.”

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