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L <br />.___: <br />., <br />r> <br />T <br />T <br />~ - <br />.fi <br />? .. <br /> <br />kEFlti' RY SURFACE INPO:,RJDNE9TS. ~ ,~ <br />A. noiler 1,500' Oi tth - H... 20 AcFe Pond ~ - ' ~ <br />i' ~ 8. 1st AP1 SeD• _ L ~3s ;cre Pond ~ -, ~ , <br />C. _nd. APL Sr0., d~. ~N~rsA. -- ~ `.r. <br />0. Long Fond ~'. rcrsrshoe Pdnd <br />E. Ist Oxidation PoW~ L Fig Ditch ~ ~ .~ <br />F. 2nd Oxidation Pund• !1 =cid S7 udge Pond; <br />. ~ G..- 3rd Oi idat ion Pond ~ 'S.~ =v+'Mgter•Cl.arifica t:c <br /> .. <br />~~ ;~ G., Dlc'Evbpgration Pord~ <br />~ ~ ~ <br />- <br />~ ~ : `'-YELLS: . ., .. .. <br />... , <br />~ : <br />_ , <br />o ~ -- <br />Gary Roniro~ Mells;~ Previous'y ~e <!stdng wells,~veq . <br />`~ -~shal low Peneti•ettpn; no geologic sods.-'~--~~ - .. <br />~ - .. <br />.~ - ~ D ~ ESA Auger Hole. Canpleted~as 2" dta:neter piezoc:eter; <br />~ ~ ~ _~ <br />. _ geol og lc logs"and constructi.x~ details in appendix. ~~ <br />O - <br />ESA Rotary Yell- Cm~pleted as 1"'or 6' diameter well; - ..~ <br />- , <br />~ geologic logs end construction details in appendix , <br />• - o ESA Observation Yell. Completrd az 2" piezo~ter tD <br /> monitor drawdown due to fumpiru: wel]S 9 and 30, no ~ ' <br /> geologic logs. ~~ <br />.B 'Colorado Division ~of Highways Foundation Bnring• <br /> geologic log in appendix. _ <br />• O USER Observation Yell. <br />~~ Ptezometric Surface Contour: <br />~ interval 10 feet. Interpreted from <br />water levels in welts and fro:: topo- <br />graphy. Yater levels measured fall 181. - , <br />Intermediate Piezndetric Surface <br />Contour; interval = 5 feet. <br />~ ~ Location of Hyd rogeologic Cross Sectidq <br />~J shown on Figure ~3-9. <br />~•~ Su65urface Mydrogeologic Boundary: ADDroxi- <br />mate Northern Extent of Cobble Aouifer. <br />~- Area of Finit Difference Groundwater )bdel. <br />a <br />SCALE 1:12.1)00 <br />0 2000 <br />L i <br />feet <br />ESA Geotechnical Consultants <br />t~ cau:.w cd,..ae <br />Gary Refinery Expans ton -Phase l: Study <br />HYDROGEOLOGiC EY.PLCRAi 10N MAF <br />C7heckeE by s/Z Date.~..~%Z'az Project NO F:gwre <br />Approved by=~ Dale Ss Ic rdi{: 2-s <br />- Figure 8A <br />Site Hydrology, Explanation <br />