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A comparison of the total potential acidity of the Tiger Tumlel MIW (35 meq/L) with the <br />alkalinity produced from the limestone dissolution (18 meq/L ~ 8 meq/L) suggests that a <br />Leadville, C~, Tiger Tunnel MiW flow/neutralixaticsn experiment <br />dw~r lirnestana. Ali. 45/13/!0. <br /> <br />a <br />s <br />z <br />i <br />d <br />Sf1t3J06 Slid? dt3 5{'17fd[# Sj24?dS 5{~GiU~ 4;'2~+dS Sf3~1fdFS <br />Qate <br />E? 1?d€3 6{9fOd3 615r'd€# fif7f05 <br />hydraulic residence time of 2 days will provide sufficient alkaliiuty to neutral all the <br />potential MIW acidity. We have increased the residence time in the flow-through <br />limestone system to 2.9 days to test this hypothesis. We will operate in this mode <br />through July 7, 2008 and use the information for design of the final system. <br />Budget (Revised) <br />D,,.-,, ,.., ., ,, <br />Research Assistant (160 hrs) $3,200 <br />*L~jzda Figrre>^oa (?-~ hrs) ~?,-100 <br />Linda Figueroa (16 hrs donated) $0 <br />Travel <br />*Ro2rf~zd trip t~~avel to Leadville ~13~ <br />Supplies and analysis <br />Reagents and supplies $800 <br />Analytical fees $800 <br />Total $7,325 <br />* An~otrslts added to ~•evised budget <br />pH <br />~Lir~ear(p~i; <br />~ ~~~~ <br />~~v~ <br />-- <br />-~~ y * • <br />~ ~ + ~ ~ <br />Frg~ter~oa EP~-re1x~rt, Jztne ?~, 200<~ 5 <br />