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cowwwsnow <br />• thick beds of shale, siltstone, and sandstone of the Upper <br />Williams Fork Formation. Figure 3-5 shocas the test interval <br />for [dell GEB-2. <br />Well GBB-3 <br />Well GBB-3 caas completed within the Yampa River alluvium <br />at a depth of eight feet, so thaC the water level within the al- <br />luvium could be tested. The well Boas cased and cement slurry <br />was poured from the land surface. The test interval for ?dell <br />GBB-3 shocni on Figure 3-5 consists of unconsolidated coarse sand <br />and gravel. <br />3.3.3 [dell Site GZ <br />Well GZ-1 <br />•1 Well GZ-1 was started in r.he Unoer 4illiams Forn Far- <br />mation. Dri11 cuttings were similar to those previously described <br />for this for::ation. The fine, white sands of the Twenty Mile <br />Sandstone first appeared in the drill cuttings at about 374 feet. <br />The well was drilled to 399 feet. After geophysical logs were <br />obtained (Figure 3-6), the casing was installed and cemented. <br />Well GZ-1 was completed within the Twenty ~Sile Sandstone. Figure <br />3-6 shows the geophysical log and test interval for We11 GZ-1. <br />Well GZ-2 <br />Well GZ-2 was drilled to a depth of 250 feet. The well <br />casing was installed and cemented. [de 11 GZ-2 was completed with- <br />in soft, relatively clean sandstones and sandy shales of the Upper <br />Williams Fork Foramtion. The test interval, above the "R" coal <br />seam, is shown on Figure 3-6. ` <br /> <br />3-15 <br />