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<br />5 5' S6' 61' Gravel \ <br />6 4' ~T 61' Grave! /~~83e <br />f Toles 3 through G ncvir rncountrred the lxutom of the gr:reel. [)tilling was Mopped <br />txcausc it lxcante too difficult at that dipth.:lssuming that the sh:di was appro>;itttatcly <br />5-10 fort lower than the lxmum of the hole. the data shows that lhi gravel gets thicker <br />from south to north and that Phase 1 has the thickest gravel none. which is more than 5T. <br />:1s a professional mining and riclantatiun rngincir with 23 years of mining and <br />pimtitting c~Ixricnie in Colorado alone. I have never scrn an instance of such a thick <br />gravel tune on a nomtall} dry wcstrrn slope terrace delwsit wham water could br within <br />25-35 feet of the surface due to irrigation. I nomtally see water levity no mare than 5 to <br />I (1 feet atxrve the shalt layer white the imgatiun is no closer than 3110 (rnt a, the aria of <br />concern. Since the gravels in this area arc high quality (little clay or silty (inns), they are <br />very prrntiable and will not inhibit aatrr flow. 7hc United Spring Crick Pit and the Base <br />Products Pit located Icss than I milt north of this site. in the same deposit. have little or <br />no rc.ject talc I}om the processing plants. 'Ibis high pemtcability will limit the bright that <br />the water will reach while irrigation is hying used in the surrounding area. <br />?) A drill hole was placed in the northeast portion of the prnnit area un Septcmlxr S. <br />2003 to a depth of 65 Pert. Irrigation was at peak and .eater w:!_c initially rncounlered at a <br />depth o1' S5 feet and was measured one day later to he 53 tcet from the surlacr. 'this hole <br />did not nncountir any shalt over the intim depth. See Vtap #2 - Sitc Plan. Since this <br />depth to water is so large. it is not liknh that the shale layer rises so rapidly to the west <br />that within Yhasr 1 it would cause the water to rise to within 1?' of the surface. Scc Map <br />3 Cross-Srctions for this perspective. <br />?) :~ detailed inspictiun of the ~4isa slope to the lower terrace was m:tdc by me on <br />Dccirnbcr .~. 2003. This v+as done tram the north idgc of the pcrntit area to the well <br />,truth ol'thc southern cdgc. Ihr slupr is approxintntcly 45-GS feet high and thrrc is no <br />rvidencc of phmak,plnlr +rgitation any++hcre on the slopes <br />:11so, their is no salt lium springs anywhere on the slopes that may indicate water has <br />ever rrnanatcd from the slupr itself. All phrratophyte vrgctation exists within a fe++• fixt <br />of the slope tor. consisting of cottonwoods, willows and wmer drntanding gr:tssrs. Scr <br />the inclosed pictures in this section taken by nti on Dra•mhir 3.20(13. In all casts, the <br />wet vigetation ociurs at the tx,ttom of the slaps and no precipitated salt is found <br />artywheri on the slope indiiating am springs higher than the krottom. \otiii in Photo #4 <br />that this is further evidence that the uppir tircace of Spring Creek Mesa gravels never <br />has a ven high water level coin ++hin irrigation is active. <br />