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ar � <br /> Y <br /> Julian Munoz 5 wEl55A <br /> SSOCGITES <br /> 15 October 1987 <br /> o Developing the three wells, collecting and analyzing samples of ground <br /> water and development water; and <br /> o Preparing a report that summarizes all previous work and presents the <br /> results, conclusions and recommendations. <br /> Procedures and results of these tasks are described below, <br /> MONITORING WELL INSTALUITION AND SAMPLING <br /> Borings for monitoring <br /> wells MW-I, MW-2 and MW-3 were drilled on 12 and <br /> Jose h P. 'Theisen, WA geologist, using a hollow-stem auger <br /> 13 August 1987 by p <br /> drill rig operated by Exploration Geoservices of San Jose, California. <br /> Borehole stratigraphy and well construction details are shown in the boring <br /> logs in Attachment A. <br /> Sail BoringSam lin and Anal sis <br /> approximately every 5 ft to determine <br /> Soil samples were collected conditions and for possible laboratory chemical <br /> � subsurface hydrogeologic <br /> analysis. Soil samples were collected in clean brass tubes lYioYtedo use and <br /> 2-in. ID drive sampler. The sampler was steam-cleaned P After <br /> tween <br /> between boreholes and was rinsed with clean besewereeimmediatelylsealed with <br /> removal from the drive sampler the brass to labeled <br /> aluminum foil, plastic end caps, hermetically sealed with duct taPerocedures. <br /> and refrigerated until delivery to B&C under chain-of-custody p <br /> Copies of chain-of-custody forms are included in Attachment B. <br /> portable organic vapor analyzer (OVA) <br /> Soil samples were surveyed using compound (VOC) vapor emissions from the soil- <br /> that detects volatile organic comp per million by volume (ppmv)• Although <br /> It has a detection limit of 0.2 parts p <br /> erceived in soil during drilling, no vOC vapor was <br /> hydrocarbon---odors..__.xere _P ....... <br /> _. _..---._ ----..the...- human--nose <br /> Samples surveyed by the OVA. However, <br /> detected in any of the samp drocarbons than the OVA. <br /> may be more sensitive to the low-volatility by <br /> s�rr,.nr� ruim�s�me®w�lllnflI IND <br />