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�- �az,_ �—"-•". I _ <br /> x <br /> Y - <br /> A-2 <br /> 0 11TONTTt7RiltiG %VPI ,iNSTALTA'i'if)N f1fyELOPMENT ANT)SAM P1 <br /> Eaen soil boring vas completed.t;a ground water monitoring well constructed of 4-inch diatneter,Schedule <br /> 40 PVC casing. Each monitoring well was su-r�,,ed prior to placement of the annular seal. The wells were <br /> .devc;io ed <br /> F by removing a minimum of six well volumes with a stainless steel bailer. <br /> A waterlpetroleum produ;t interface pro"oc was used to evaluate the presence of liquid-phase hydrocarbon <br /> and measure the depth to groundwater in each%v,,IL If a liquid-phase hydrocarbon layer wW not detecied <br /> by the interface p;obe,'the tip of the probe was subjectively analyzed for a sheen. Depth to ground water <br /> was measured to the nearest 0.0:foot. <br /> Ground water samples were collected with clean, disposatie plastic bai'ers Samples were stored in <br /> appropriate containers with the prcper preservative for the intended analysis,and were placed in an ice chest <br /> coaled to at least 4 degreez`centigrade until d4very to a California-certified laboratory, A chain-of-custody <br /> -" document was used to record.possession of the samples from the time of collection to arrival of the <br /> laboratory. <br /> Each well rt3er was sur:'-eyed to the nearest 0.01 foot. The survey point on Pact well riser was notched so <br /> that subsequent water level measurements can be taken from the same reference point. 1 he weii rises were <br /> surveyed relative to California Departmeni of Transportation Berchmark #1618L(el�vatien 0.728 foot <br /> " above mean sea level), located at the northeast corner of Ryde Avenue and Country Club Boulevard <br /> (Figure 3). t!r` <br /> _ r <br /> All soil cuttings,auger ri:rsate,and purge water were drummed and stored on-site pending determination <br /> �f of the most suitable methods of disposal. <br /> ti <br /> a� <br /> a <br />