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0 <br />• <br />Table 2-5 <br />Characteristics of Hydrogeologic Units in Paradox Basin <br />Aquifer Hydrogeologic Thickness Physical Characteristics Hydrogeologic <br /> Unit ft. Characteristics <br /> Yields large quantities <br /> <br />Alluvial Aquifers <br />Alluvial <br />0-100 Alluvial sands and gravels, <br />eolian sands <br />colluvium <br />loess for domestic, stock, and <br /> , <br />, municipal <br /> Mancos Shale 1,000- Shales interbedded with minor Confining Unit <br /> 5,000 sandstone <br />Tertiary to Upper Dakota Fine to coarse grained cross- Yields some water, <br />Cretaceous Sandstone 0-200 bedded sandstone stock and domestic <br />aquifer Burro Canyon <br />0-250 Conglomerate, sandstone and <br />Yields water to springs <br /> Formation shale <br /> Brushy Basin <br /> Member of the 400-500 Bentonitic shale interbedded Confining unit <br /> Morrison with minor sandstone <br /> Formation <br /> Salt Wash Medium grained sandstone <br /> Member of the interbedded with red shale Yields small quantities, <br /> Morrison 300 (contains Top Rim sandstone stock and domestic <br /> Formation unit <br /> Summerville 0-120 Shales interbedded with minor Confining unit <br /> Formation sandstones <br /> Entrada 15-170 Medium to large grained cross- Data not available <br /> Sandstone bedded sandstone <br /> Siltstone and shale <br /> <br />Mesozoic Carmel <br />0-40 <br />interbedded with fine grained <br />Leaky confining unit <br />sandstone aquifer Formation sandstone <br /> Small to moderate <br /> Navajo 0-125 Fine rained cross-bedded <br />g amounts from fractures, <br /> Sandstone quartz sandstone stock and domestic <br /> Kayenta 0-200 Sandstone interbedded with Yields little to no water <br /> Formation siltstone and thin bedded shale <br /> Medium grained, poorly Yields water to <br /> Wingate <br />Sandstone 0-400 cemented, cross-bedded numerous springs <br /> sandstone <br /> Shale, siltstones interbedded Yields small quantities <br /> Chinle Formation 0-500 with minor fine grained where fractured, stock <br /> sandstone and domestic <br /> Moenkopi Shale interbedded with minor Yields small quantities, <br /> Formation 0-480 sandstone stock and domestic <br /> Fine grained sandstone Yields small quantities, <br />Permian Cutler Formation 0-3,500 interbedded with minor stock and domestic <br /> conglomerate and shale <br /> Shales, limestones, salt, and <br /> <br />Pennsylvanian Hermosa <br />0-3,900 gypsum, includes Paradox <br />f Hermosa <br />M <br />b Confining unit <br />g <br /> Formation er o <br />em <br /> Formation <br />Notes: <br />Data compiled from Weir et al. (1983) and Hanna and Gandera (2000) <br />ft.- Feet <br />0