Laserfiche WebLink
a _ <br /> hr <br /> i <br /> I ` <br /> Job No. 00770 Page: 4 <br /> WELL CONCENTRATION (ppm) <br /> VW-7 <br /> 1,200 <br /> ti VW-9 2,000 <br /> is <br /> i-4 .. VW-5 <br /> 27,000 <br /> VW-6 25,500 <br /> i <br /> The study was performed at the well heads because existing <br /> ! piping was not connected to the wells. Consistent <br /> .� <br /> I-' extraction volumes were exhibited at the wells with 24-0 to <br /> .i . <br /> s <br /> I 25.0 cfm at 2.5" Hg. The soil permeability at each well <br /> 3� <br /> C within the impacted area indicates that site lithology is <br /> # . very favorable to vacuum extraction. Vapor well VW-4 was <br /> I <br /> impermeable when the vacuum was fir-.i applied, but the well777 <br /> j <br /> opened up after 20 minutes. <br /> f <br /> s. <br /> 1 <br /> sr D O <br /> � a - <br /> Existingva or recovery` p wells would be sufficient to <br /> remediate the impacted area, but the additional use of <br /> monitoring well MW-1 would . be advantageous. Use of this <br /> ` `�- 3 - - - --- well Twould result in : a more direct- effect upon the zone - - - <br /> �`;I_ Y <br /> any <br /> -p F3 - 1 <br /> � 3 <br /> L' ,4 <br /> Y <br /> . - <br />