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K' b- <br /> l` <br /> YC <br /> jjIL <br /> KAPREALIAN ENGINEERING, INC. h!'dl,:,IPi.1f. );rpt rii ,,i f)3 <br /> consulting Engineers -it` <br /> PO. BOX 996 • BENICIA, CA 9450 <br /> (707) 746.6915• {707)746.6916 • FAX: (707)746-5561 <br /> KEI-,791-0202.R3 <br /> April 9, 1991 <br /> Unocal Corporation <br /> 2000 Crow Canyon Place, Suite #400 <br /> P.O. Box 5155lifornia 94583 <br /> San Ramon, Ca <br /> Attention: Mr. Rick Sisk <br /> E;: pckpile&O'1. Sampling fob <br /> RE; <br /> Unocal Service Station #6015 <br /> 601 E. Kettleman Lane <br /> Lodi California �--- <br /> pear Mr. Sisk: <br /> The soil <br /> This letter report �analyseshfor the referencedsite. <br /> soil <br /> sampling <br /> and laboratory <br /> e conducted to comply with the County Health Department <br /> analyses wer <br /> _. requirements for proper disposal of contaminated sail. <br /> approximately 950 cubic <br /> 1991, soil samples from app fuel tank pit were <br /> On February Z1, Nineteen <br /> yards of stockpiled soil ex exv t P4 al of ethe soil- i , one <br /> collected to determine prodes noted as Comp A through p <br /> composite soil samples ( g yards of soil, were taken. Also on <br /> composite sample per 50 cubic y approxi <br /> 150 <br /> this same date, soil samples were collected from trenches. Three <br /> cubic yards of soil excavated from the piping Com U and Comp v) <br /> composite soil samples (designated eaconsisted of four individual <br /> Each composite same the to approximately <br /> were taken. clean <br /> grab samples taken at various locations and depths <br /> The samples were collected in two-inch diameter, lastic <br /> 2 feet• p <br /> which were then seal <br /> with aluminum <br /> tmfar1 subsequent <br /> brass tubes, and placed in <br /> caps and tape, for analysis. All samples were <br /> delivery to a certified laboratory California, <br /> analyzed at Sequoia Analytical Laboratory in Concord, custody <br /> and were accompanied by properly execute shown on the attached <br /> documentation. Sample point locations are as <br /> site Plan, Figure I. <br /> g, Inc. (KEi) returned to <br /> On March 19, 1991, Kaprealian Engineerinroximately 150 cubic yards <br /> the site to collect soil samples from app <br /> t. <br /> stockp <br /> fled soil excavated from the fuel tat MP AAA <br /> ------- designated .as._Camp-_W through Comp �, <br /> ---- were----- <br /> Six composite samples- per 25 cubic yard P0 <br /> andand Comp BB) , one composite sample <br /> collectedowndon the attached Sstored as ite Planed , Figure 2. <br /> p <br /> are as <br />