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The 2 inch PVC pipe connected together from the wells prior too the <br /> intake of the blower (1 horse power Rotron Blower) . AAIB N� _1- ort <br /> w �£ t1 e+� a �` �k ��y${vazaum � elr F��rfar <br /> r �; F n � z w n�, x � er ower <br /> �.l�l <br /> t'► �� � 7 ..� lxa +�� '?�,e°� 2rr�v� �. r�,.�i�.ea✓ '� 3r�,t �' r ,- r <br /> ;�*,-�'o£�ia oh��caoa d ,s .. 9�rn-� � _ Mx • <br /> MW <br /> k r <br /> ' SOIL SAMPLE RESULTS <br /> Soil samples of the tank excavation and nearby monitor wells <br /> indicate that gasoline range hydrocarbons are found between the 30 <br /> and 40 foot depths southeast of the excavation. soil excavations, <br /> taken from the base of the three pump <br /> indicated that contaminated soil remains beneath the eastern and <br /> western pump island areas at the 40 foot depth but for the Aost <br /> part has been removed by the excavation, see Figures 3B, 3C, 8 and <br /> k Table 1. <br /> To remediate the aged gasoline range contaminated soil beneath the <br /> f pump island area and the area southeast of the tank excavation, <br /> three vapor recovery wells were installed for vapor recovery, Pl , <br /> P2, and EX, see Figures 3B, 3C, 8 ar_3 Table I. <br /> SOIL AND GROUND WATER SAMPLING PROCEDURES <br /> All samples were obtained by a California Qualified Geologist <br /> working directly under the supervision of California Registered <br /> Geologist 03037. The samples were collected, preserved, labeled <br /> and chain of cult 4y hand delivered to ChemTech Analytical <br /> Laboratories, 3017 Kilgore Road #110, Rancho Cordova, CA 55747 <br /> (916-635-3962) . ChemTech is a State of California Certified lab <br /> ` (#359) . All samples obtained from the borings for the monitor <br /> wells were analyzed using the following EPA and DOHS methods: <br /> 5030 for extraction, 8015-TPH, and 8020/602-BTEX. Since initial <br /> sampling showed that TEL and EDB did not exist at this site these <br /> analyses were not carried out for this sampling <br /> Prior to obtaining a ground water sample from each monitor well, a <br /> water interface probe was lowered into each well to obtain a depth <br /> to ground water measurement. Teen the wells were purged <br /> (approximately 2-3 gallons) until temperature, pH, and <br /> w conductivity stabilized, indicating that fresh ground water would <br /> be sampled. A dedicated sterile disposable PVC bailer was then <br /> lowered into the well to collect the ground water sample. The <br /> ground water was then slowly decanted into EPA series 200 Clean <br /> glass sample containers (4-40 ml VOA vials per well) . The sample <br /> containers were then labeled (site designation, well number, date, <br /> t <br /> page 6 <br /> s � <br />