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'��"` '--_a_ _. :�' -.."' - .." as, _ "Mara - rx $_s: ax_ ,.•r.. <br /> x <br /> '{" •sem - .� �,, �� �� ., '`� ,: � � t-> .r �' hP ?.;a _ <br /> 7 <br /> JUNE 16, 1991 <br /> The "Cyclo Purge,, was repaired and rejuvenation of the two 110 <br /> _ gallon carbon scrubs occurred on .Tune 16, 1991 and vapor extraction <br /> a commenced at 4:30 pm on June 17, 1991 into <br /> f carbon scrubs placed in series, the two 110 gallon <br /> JUNE 20, 1991 <br /> At 8:30 am, carbon #1 (110 gl #2996) was taken -off line and two of <br /> the "Cameron-Yakima" rejuvenated 65 gallon carbons scrubs (#1043 <br /> and #11044) were placed in parallel behind carbon <br /> #2995) . Low pressure injection of ambient air was started <br /> wellswells MW2, MW4, EX and P1. To augment subsurface circulation <br /> towards vapor extraction wells MW1, MW5 and P3, see Figure 6D. <br /> JUNE 24, 1991 <br /> Vacuum extraction occurring from wells MWI, <br /> 5 d P3, with <br /> ambient air injection into wells MW2, . MW4, P1 and EX. After the Mwan <br /> Pumps the following carbons were in series; #1 110 gallon 2995, <br /> 85 gallon R1043, #3 85 gallon R1044 and #4 85 gallon R1045. <br /> #2 <br /> v r JUNE 27, 1991 <br /> Carbon canister ,R1045 was discovered leaking around the lid, this <br /> canister was taken off line and upon removing the lid was <br /> that the lid gasket ;ias missfound <br /> ing. At this time one 85 gallon <br /> (81044) and one 110 (2995) were also removed from the system and <br /> �. rejuvenated using the "Cyclo Purge". Carbon #R1043 w <br /> placed in the number one position and a fresh carbon as then <br /> placed in series behind it. #inued was <br /> MW1, MW5 and P3 with ambient air ainjection Cinto wellstion was MW2, HW from <br /> and EX, see Figure 6E. 2, MW4, P1 <br /> JULY 1, 1991 <br /> Carbon canisters R1043 and 81041 were placed in <br /> Parallel after <br /> Pumps and exhausted into the 2 rejuvenated 110 sisters <br /> that were placed in series gallon cansis�ers <br /> from wells Mw1, MWS and P3 with 5ambient9air inject on into. Vacu wellsMW2, MW4, EX and Pl. Prior to leaving the site, one 85 gallon <br /> carbon (#1044) was put on the of exhaust #2996. <br /> JULY 8, 1991 <br /> T - - - { Manifest 3 65 gallon carbon scrubs (R1041, R1043 and R1045) along T <br /> with the two 110 gallon carbons scrubs (2995 and 2496) to Cameron- <br /> Yakima for rejuvenation using Exceltrans, see Appendix G. Place <br /> page 11 <br /> ,_t <br />