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LV G G -• 138b t. leeeer St <br /> WESTERN GED—ENGINEERS uooateea Rt he Box 177 <br /> 95695-9603 i <br /> RECISrERBD CEOLOCISrs .FAX 916/662-0273 ! <br /> April 22-, 1981) X916 ) 662»4541 <br /> • PLAN I"OR S T1-- ASSES5MI,NT, 0t1TLINE <br /> DESERT PETROLEUM SERVICI, STATION #707 at 950 11th Street , Tracy, <br /> California , in Sec 29 , T2S , R51:, MDB&M <br /> FOR: Peter Allen , WALTON • KNCINERMING, 837 Rieke Lane , West <br />'> Sacramento , CA 95691 , (916 ) 372_1888 . <br /> Ref : Walton Project #88-2104 <br /> I. Preliminary Plan For Site Asessment <br /> A- Ex ract flui rom open i left w en 3 tanks were removed. <br /> Pum into hol ing t k (L- ker -ruck ) . oA,:/y�✓ <br /> 1 to lea up to h e ,'y4l'r- <br /> 2 . <br /> + 7: <br /> 2 . to c k 'for re ar e / Y' Y. <br /> a • c k for p d ct in r ha a fluid S�ceA <br /> b - p duc is f nd , xtrac�t into holding tank:. -moi( <br /> f <br /> t YW <br /> repeat u it Clea + <br /> B. Remove all sand and <br /> pe P' <br /> P gravel from k anhope and r4raove <br /> native soil <br /> 1 . past odor <br /> or sniffer reading detection ••"�:'•`.:•';`'" <br /> 2 . screen soil with fruit jar and sample <br /> 11 Arc sniffer <br /> 3 . when clean " <br /> a . sample native soil <br /> b . at each of the 3 tank sites , <br /> the above 3 samples 1.0 a certified lab for BTEX j• <br /> C. Install 3 monitor wells to 15,rwo. r <br /> 26 feet , total depth ) . feet• into 1st water (estimate <br /> p down gradient and one <br /> bF,ckground (ui) gradient ) and for gradient measurement . <br /> 1 . NW corner of site (9th & 11th streets ) ; down gradient. <br /> 2 . NE of tank hole (near 11th street ) ; down gradient . 4 <br /> 3 . South of SW corner of Station Building ; background <br /> 4 . Develop by pumpincx fluid into tanker truck <br /> When certified lab results are back showing bottom om of tank <br /> is clean j <br /> 1 Install new tanks as previously planned . <br /> 2 . Open station for business . r <br /> I I . Set u p •y'•�../ <br /> monitoring program to determine if any other. ral. <br /> work is necessary . emediC <br /> III . Prepare complete site characterization and assessment plan <br /> if other remedial action is needed . <br /> Respectfully subjgttted , <br /> 'ack E. Napper is <br /> Registered Geologist #3037 ' ! r <br /> J EN/lm <br /> 4 <br /> � is <br />