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MONITORING WELL BOREHOLE MONITORING WELL <br /> NUMBER NUMBER <br />CONSTRUCTION LOG F038023A TMMW-10 <br />WELL OWNER: COTTONWOOD LAND COMPANY PROJECT NAME: BIG ELK MINE HYDROLOGY <br />LATITUDE: LONGITUDE: SURFACE ELEVATION: _ 7680 ft MSL <br />TWP: SN RANGE: 88W SEC: 30 QUARTERS: COUNTY: ROUTT STATE: CO <br />DRILLING CO.: DEI DRILLING METHOD: ROTARY GEOLOGIST: Lawrence / Sturm <br />TARGET AQUIFER: Twentymile Sandstone AQUIFER THICKNESS: DATE COMPLETED: 12/10/96 <br /> Depth from Nat to Scale <br /> Ground Level <br />COLLAR ELEVATION: <br /> 0 ....___.. -------_-. Ground Level <br />TOTAL DEPTH: 1321 FT va . va <br />BOREHOLE DIA.: 5.75 IN ~°d~v v° ~ ~ ~ <br /> Ponland Cement Surface Plug <br />CASING DIA <br />: 2 IN 20' vav ovQ <br />. <br />SCREEN LENGTH: 20 FT v v <br />SLOT SIZE: 0.010 IN <br />ARTESIAN: <br />' <br /> 55 <br />."... <br />FLOWING: <br />FLOW RATE: gpm <br />AQUIER PUMPING TEST: 535'---- 9d lb. Volclay Grout <br />TEST DATE: <br />PRODUCTION RATE: gpm <br />548'__ 0~ ~ Bentonite Pellet Top Seal <br /> __ <br />.~,... <br /> <br /> <br />STATIC WATER LEVELS: ~:~;~~ ~~~;,~ <br /> ~~ <br />SWL DATE <br /> <br /> 2 ~ 2' Prepack Well Screen <br /> <br /> - '. • :; <br /> •'; . 10-20 Silica Sand Pack <br /> <br /> <br /> Cenlrahzer <br /> ~, <br /> <br /> -_ <br />,. 2 ~ 2' Prepack Well Screen <br /> . <br />r <br /> 625'____ ~~ <br />: <br /> ; <br /> Centralizer <br /> :~ <br />. <br /> •', ; ,.' <br /> ': <br /> 645---- ~,•.l','. <br />~ <br />'~ , ~ <br /> 00'o0'oQ <br />o Bentonite Pellet Base <br /> 9 ~ 4 Ib Volclay Groh <br /> T D. =1,921.0' Badcfill <br /> <br />