Description based on December 6, 1996; title from title screen (viewed on June 6, 2007).
Latest issue consulted: April 27, 2007.
Mode of access: Internet at the Defense Nuclear Facilities Safety Board web site. Address as of 6/4/07: http://www.dnfsb.gov/pub%5Fdocs/hanford/wr%5Fhd.html ; current access is available via PURL.