A catalog of borehole geophysics for the 100 Areas and adjacent 600 Area, Hanford Site, 1962 to May 1992

Abstract

This report catalogs geophysical borehole logs acquired between 1962, when logging began, and May 15, 1992 in the 100 Areas and the surrounding 600 Area of the Hanford Site. Separate tables were prepared for each respective set of wells. Each table lists all wells known to have been drilled, all borehole geophysical logs measured, and the location of these logs. No information is provided for logs acquired by the Westinghouse Hanford Company spectral gamma logging system. Maps are provided for identification of the specific wells in the 100 Areas. A cross reference between the well numbering scheme employed by the Basalt Waste Isolation Project and that based on the Hanford grid name is provided for the appropriate wells in the 600 Area.

1999 vadose zone monitoring plan and guidance for subsequent years

“…Their report associates the type of log (gamma-gamma, neutron-gamma, neutron epithermal neutron, natural gamma, caliper, and sonic) with the date collected and source well. Lewis and Pearson (1992) compiled a listing of over 1000 geophysical logs obtained from over 250 monitoring wells in the 100 Areas and adjacent 600 Area. They list, among other things, the type of log, the date collected, the well logged, and the physical location of the log.…”

Limited field investigation report for the 100-BC-5 Operable Unit

“…-These results are similar to those from the soil sampling. The data from other geophysics performed in the 100 Areas are provided in Lewis and Pearson (1992).…”

“…They include an analysis of existing wells relative to their potential for future use. Lewis and Pearson (1992) present a " catalog of historical borehole geophysical data for the 100 Areas. Ledgerwood (1991) summarizes well construction and condition information for existing 100 Area wells.…”