In This Issue

Updates of Digital Mapping Data for Hazardous Liquid Pipeline High Consequence Areas (HCA)

OPS has updated and revised the High Consequence Area (HCA) digital mapping datasets. Updated digital mapping data to delineate high consequence areas for use in geographic information systems is now available for high population areas, other populated areas, and commercially navigable waterways. Population information updates are based on data from the U.S. Census Bureau’s TIGER 2000 datasets. Updates for commercially navigable waterways are based on the 2002 version of the National Waterways Network as provided by the Bureau of Transportation Statistics. The digital mapping datasets for Ecological and Drinking Water Unusually Sensitive Areas (USA) are not being updated at this time. All updated data is available for download from the NPMS Web site at Operators have one year from January 22, 2003, to incorporate these new high consequence areas into their baseline integrity management assessment plans. FOR FURTHER INFORMATION CONTACT: Sam Hall, (202) 493-0591; or by e-mail, Steve Fischer, (202) 366-6267; or by e-mail,

Editor’s shameless commerce statement: If you don’t already have digital maps of your pipeline systems and the relevant HCAs, we would be glad to assist you in that effort. We use ArcView for pipeline and HCA mapping, and will be glad to turn over the digital files for your personnel to use upon project completion.