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Mr Daniel K Barber <br /> D K Barber& Associates <br /> June 21, 2002 <br /> Page 5 of 5 <br /> constructed of 2-inch diameter casing All wells had a depth of 60 feet Well <br /> ' construction details are summarized below <br /> ❑ 20 feet of 2-inch diameter PVC schedule 40 factory-slotted well screen (0 020 <br /> ' inch slots) from a depth of 40 to 60 feet bgs, <br /> ❑ Annular sand pack from total well depth (38 to 60 feet bgs), providing 2 feet of <br /> sand pack above the top of the well screen, overlain by approximately 2 feet of <br /> hydrated bentonite pellets ( 36 to 38 feet bgs), overlain by neat Portland cement <br /> ' grout slurry to the surface, <br /> ❑ 2-inch-diameter PVC blank casing from top of well screen to surface with locking <br /> well caps, and <br /> L3 Surface completion with flush-mounted, Christy-type, traffic-rated well boxes, <br /> except for MW-5 and MW-6 which are located in the filed outsdie of the subject <br /> ' property in the neoghbouring parcel unimproved field, <br /> SES appreciates the opportunity to provide you with the requested technical services <br /> Please call us directly at (510) 644-3123 if you have any questions <br /> Sincerely, <br /> Stellar Environmental Solutions <br /> Fred y , R G , <br /> Sento ologist <br /> richard S Makdist, R , R E A, <br /> Principal <br /> ' Attachments—Borehole logs <br /> 1 <br /> Stellar Environmental Solutions <br />