Check out this performance sheet which explains the added value of Signaltape over traditional underground marker tape: Performance Sheet
A tracer wire integrated marking tape for open trench installation. Tracetape was designed to combine the advantages of tracer wire location with the reliable and visible installation of a marker tape.
The National Pipeline Mapping System (NPMS) Public Map Viewer is a web-based mapping application designed to assist the general public with displaying and querying data related to gas transmission and hazardous liquid pipelines, liquefied natural gas plants, and breakout tanks under Department of Transportation (DOT) Pipeline and Hazardous Materials Safety Administration (PHMSA) jurisdiction. Please note that this application does not contain distribution or gas gathering pipelines