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Table 4 <br /> SUMMARY OF AIR PERMEABILITY AND FLOWRATES VS VACUUMS <br /> Ruiz Grocery Store <br /> 4491 West Durham Ferry Road <br /> Tracy,Califorrua <br />' WeIl Screen Pemeabilty Radius of Flowrate at indicated vacuum <br /> ID Inetrval (darcies) Influence 20 30 40 50 60 <br /> (feet) (feet) in w e in w e in w e 1n w e in w e <br /> RW-1 10-21 -5 35 12 22 27 30 45 <br /> VW-1 10-15 -5 --30 21 30 38 55 59 <br /> VW-2 10-15 --3-4 17 5 75 10 13 15 <br /> VW-3 10-15 -3-4 20 22 26 6 8 10 <br /> I 60 - <br /> - VW-1 <br /> 50 - -- -a-- RW-1 <br /> VW-2 <br /> 40 - <br /> � � VW-3 <br /> u <br /> R 30 - <br /> 0 <br /> w <br /> 20 - <br /> 10 -- <br /> 0 <br />' 0 10 20 30 40 50 60 <br /> Vacuum (in w c) <br /> 1 <br />' 1of1 <br />