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I <br /> U1M' W":ii I U1 l�:gg!�!- - . ...- ,- <br /> P <br /> Mr , Ken Olds <br /> April 2.1 . 1987 <br /> Page 3 <br /> these analyses will provide information an the <br /> vertical and horizontal extc of contamination in <br /> t,lie sed ;ments . One sample from each well will be <br /> analyzed . <br /> ` Sail samples analyses for total hydrocarbons , benzene. <br /> toluene and xylenes will be conducted usiug EPA <br /> Method 5030/8020/8015 . Lead analysts will be conducted <br /> using 'IPA Method 3050/7420. <br /> " Subsequent to well dnstallation, monitoring will be <br /> conducted to record the depth to water and presence <br /> of free floating product , if any. The groundwater <br /> - gradient will be determined from water levels wltlsin <br /> the mo ;Iitoring wells and surveyed we 11 head <br /> elevations . <br /> " will be obtained from each well and <br /> One water sample <br /> analyzed for total hydrocarbons , benzene , toluene and <br /> xylenes using a. modified EPA Method 602 . Lead analysis <br /> will also be conducted using EPA Method 3020/7421 . <br /> " A dissolved hydrocarbon plume map will be prepared <br /> from the laboratory :analytical results . <br /> " A free product plume map 4111 be prepared from <br /> monitoring results if free product is present . <br /> 1 _ <br /> Ar <br />