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Although the faults aze closer-spaced here, they have considerably less displacement, 5- 50 feet, varying along strike. Due to the small displacement of these faults, many can only be traced for a few hundred feet. Soil and colluvium obscure them. Where visible, though, the small displacement is obvious. However, the fault that cuts the adit appears to have considerably more displacement as it extends to the southeast, becoming the main valley-edge fault. Since the report of the modeling was submitted, Cotter has become aware of a water well located one-halfmile southeast of the JD-6 waste rock pile. This well appears to be located in the next fault block to the northeast from the waste dump block. The exposure of the fault near the well shows no more than 15 feet of displacement. This well collar is located at an elevation of 5704 feet. This compares to the Mine portal at 5900 feet and to the base of the waste rock dump, which averages about 5850 feet, the lowest part being azound 5800 feet. According to the driller's log, the well collared in the valley alluvium (0-6ft), then penetrated sandstone (6-67ft), clay (67-96ft), and had no returns (96-165ft). When circulation was reestablished, it penetrated mudstone (165-215ft), sandstone (215- 260ft), and bottomed in clay (260-280ft-TD). Water was first encountered at the base of the sandstone near 260 feet deep, which is an elevation of about 5444 feet. This water was under some pressure so that the static water level was around 168 feet deep at an elevation of 5536 feet, 1t has been pumped for sustained periods at a rate 15 gallons per minute, The hillside some 150-200 feet northwest of the well has the Summerville formation (Js) exposed in the slope and Salt Wash sandstone on top. All stratigraphic units below the Salt Wash thin considerably on the flanks of the Pazadox anticline. Since there is no evidence of a fault between the well and the outcrops, it is interpreted that the first sandstone encountered would be the thinned Entrada (Je}, which would be overlying the Carmel and Kayenta (Tak) represented by the clay, lost circulation, and mudstone zone, and the water-bearing sandstone would be the thinned Wingate (Txw), which is exposed some 800-900 feet southeast of the well on the southwest side of the larger-displacement, valley-edge fault. This relationship is shown on the geologic map and cross-section B- B'. The well would have bottomed in the Chinle (Txc). Sampling and analytical work to determine the ambient groundwater quality and characteristics is being done. The results of the modeling suggest that it could take up to 1,000 yeazs for water to travel from the waste dump to the water table, if it is 400 feet below. Therefore, rather than a monitor well in the aquifer, Cotter proposes a soil water sampler (lysimeter) be installed. It will be near, and on the down-gradient side of the waste rock dump, while still allowing for dump expansion. The approximate location of the proposed lysimeter was discussed with DMG during the field meeting, and is shown on the attached map. This will serve as a timely sampling system showing the amount and quality of water percolating through the dump material. The installation plans for the lysimeter are as shown on the attached "OPERATING INSTRUCTIONS FOR SOILMOISTURE EQUIPMENT CORPORATION MODEL 1920 F1 PRESSURE-VACUUM SOIL WATER SAMPLERS. JD-6 geo_lsup - 2 -