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- � <br /> .. affialowal <br /> . affmwax " <br /> w . <br /> Harding Lawson Assoclates <br /> boring and 85 feet of solid PVC casing to the surface. The <br /> bottom of the casings were capped with a flush-threaded end cap. <br /> The annular space between the casing and the boring was <br /> backfilled with No. 3 Monterey sand to approximately two feet <br /> above the screened casing. A two-foot layer of bentonite pellets <br /> was placed on top of the sand pack and hydrated. :ne remainder <br /> of the boring was backfilled with a cement/bentonite sanitary <br /> seal. The top of the casings were secured with water-tight, <br /> locking expansion caps. The wells were housed in water tight, <br /> traffic-resistant boxes. <br /> 032481P/R47 . B — 2 <br />