H-17
"no recovery," 7.2 ft, claystone, 542.9-550.1 ft below surface, 13.9 ft above Magenta

WIPP-34
"no core," 2.7 ft, mudstone, 691.0-693.7 ft below surface, 22.1 ft above Magenta

H-11b3
"no recovery," 6.2 ft, claystone, 595.7-601.9 ft below surface, 21.0 ft above Magenta

H-16
"no recovery," 2.5 ft, clay, 566.8-569.3 ft below surface, 20.9 ft above Magenta

H-3b3
"washed out zone," 2.5 ft, mudstone, on caliper log, 536.5-539.0 ft below surface, 20.0 ft above Magenta

H-18
"no recovery," 7.1 ft, clay, 542.2-549.3 ft below surface, 21.9 ft above Magenta

H-1
"washed out zone," 8.5 ft, mudstone, on caliper log, 538.5-547.0 ft below surface, 16.0 ft above Magenta; loss of circulation of drilling fluid

WIPP-33
"cavity; determined by drop of drill string during drilling and through interpretation of caliper log," 9.5 ft, gypsum, 416.5-426.0 ft below surface, 23.0 ft above Magenta

VENTILATION SHAFT
"deep washout," 6.7 ft, mudstone, first liner plate, 569.2-575.9 ft below surface, 20.2 ft above Magenta

"cavity; no core (drill string dropped), possible cavernous formation," 6.0 ft, gypsum, 430.0-436.0 ft below surface, 13.0 ft above Magenta

WIPP-19
"no core," 2.1 ft, mudstone, 620.2-622.3 ft below surface, 25.5 ft above Magenta

ALSO AT WIPP-33
cavity, 7.0 ft, siltstone, in Dewey Lake Redbeds, (no core, 0.0 min/ft drilling time, lost circulation), 357.0-364.0 ft below surface

WIPP-12
"no core," 6.0 ft, clay, 678.7-684.7 ft below surface, 19.2 ft above Magenta

"cavity; no core (cavernous)," 2.0 ft, in Magenta dolomite, no circulation for 24 hours, 0.0 min/ft drilling time, 452.0-454.0 ft below surface

DOE-2
"no core," 2.5 ft of 10.2 ft interval, mudstone/siltstone, 669.8-680.0 ft below surface, 18.6 ft above Magenta

"cavity (drill string dropped)," 5.0 ft, in Magenta dolomite, no core, no circulation for 24 hour period, 462.0-467.0 ft below surface