A 14-volume report detailing two years of study of contaminated waste sites at Hill Air Force Base has been released to the public. The report is on file at the Central Branch of the Davis County Library in Layton.

The study was conducted between November 1985 and November 1987, with data compiled over the last year and released this month.It outlines hydrological and other studies performed at 17 former waste disposal sites, both on the base and off-base at the Utah Test and Training Range (UTTR) and near Little Mountain.

The report is officially known as the Air Force Installation Restoration Program (IRP) Phase II Confirmation and Quantification Stage 2 Final Report.

It recommends no further action at three of the 17 sites, including one on the base and one UTTR and the Little Mountain sites. It also recommends a remedial investigation to determine the best action in dealing with 13 other sites on base and one at UTTR.

Hill has been monitoring the sites for several years through test wells bored to test groundwater and to determine leakage from the sites, most of which contain solvents and other chemicals.

One site has already been sealed with a clay cap and retaining wall to prevent leakage of the chemicals into groundwater and a nearby off-base irrigation canal.

The IRP report documents off-base contamination at three sites along the northeast boundary of the base, first reported to the public when the contamination was discovered in 1986.