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sampling tube and brass liners were washed in a mixture of Iaqui-Nox or Alconox and clear <br /> water, rinsed in clear water, rinsed in deioruzed water, and allowed to air dry between each <br /> sampling interval This prevented the chance of any cross contarrunatxon occumng between <br /> i <br /> boreholes Soil samples were collected for laboratory analyses by advancing the borehole to <br /> the desired sampling increment, removing the auger plug, and lowering the modified <br /> California sampler through the auger The sampler was then advanced ahead of the auger <br /> using either a hydraulic drive or a 140-pound hammer The sampler was then removed from <br /> the borehole and broken down into its component parts The brass liners, now full of soil, <br /> were removed The lead brass liner, in most cases, was used for laboratory analyses The <br /> ends were covered with Teflon sheeting, capped with plastic caps, and sealed with black <br /> electrical tape The samples were then labeled, logged on a chain-of-custody/sample <br /> management form, placed in an ice chest with Blue Ice, and kept cool for transport to <br /> AEMC's state certified laboratory for analyses. The contents of the remaining tubes were <br /> l� checked for odor and discoloration, and extruded and logged for changes in soil hthology <br /> All boreholes were pressure grouted upon completion Table 4 on page 17 presents a <br /> summary of the results of soil sample analyses <br /> GROUNDWATER CONDITIONS <br /> Groundwater was encountered while drilling the exploratory well at a depth of 43 5 feet. <br /> Water rose to 39 5 feet approximately thirty minutes after the water-bearing stratum was <br /> penetrated, indicating that groundwater conditions are confined. Water-saturated sands were <br /> found at 30 feet and at 36 feet, although this was considered perched water. Groundwater was <br /> encountered while drilling SB-4 at a depth of 41 feet <br /> 1 <br /> r1f�o6(�2-,7 Page 16 <br /> i <br />