This page contains a Flash digital edition of a book.
APPENDIX The Common Ground Alliance (CGA) estab-


lished best practices for all stakeholders involved in the excavating process including underground facility owners (electric, telephone, cable TV, gas and hazardous liquid pipelines, and water and


sewer operators), excavators, locating companies, government agencies and One-Call Centers. In addi- tion to developing best practices for excavation, CGA also actively promotes pipeline damage prevention safety and the use of a one-call number 8-1-1 through a nationwide media campaign. 8-1-1 allows excavators to use the national desig-


nated three digit number to reach their local One-Call Center.


V.1


FIGURE A.11 Examples of visual and electronic inspections of pipelines. Visual Inspections—Rights-of-ways and pipeline markers identify the


existence of a pipeline in the area. In addition the rights-of-way are also inspected by the pipeline operator on the ground or in the air to check for any unsafe conditions or evidence of a pipeline leak. These inspections mon- itor for encroachment, excavation activities and signs of releases.


Pipeline Control Center— FIGURE A.12 Pipeline operations center. 82


All pipeline markers and LDC outreach programs pro- vide numbers to call in an emergency. This number goes directly to the Pipeline Control Center. Pipeline op- erations are monitored 24 / 7 by control centers that con- stantly monitor the pressure, volume and throughout of

Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36