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,--, WESTERN GEO-ENGINEERS <br /> SECTION 1.3 <br /> SITE SECURITY <br /> When construction was stopped and the new tanks could not be installed(to fill the <br /> excavation), barricades with lights were set-up. A 24 hour security guard service <br /> was hired, and barricades with lights were used until an eight foot high security <br /> fence with two locked gates was in place and the site found to be secure. <br /> SECTION 2.0 <br /> i PERMITTING <br /> Prior to any site assessment (monitor well placement, etc.) the necessary permits <br /> were needed, as well as approval from Diane Hinson of the San Joaquin Local <br /> Health Dept. Western Geo- Engineers and Walton Engineering presented the psrmit <br /> package to Diane Hinson at a special meeting on May 2, 1988 (see Appendix K). <br /> The permit package was approved May 4, 1988 with modifications to the"Plan For <br /> Site Assessment Outline" and to the well location map. These requested changes <br /> by San Joaquin County Health Dept. were accepted by the"Engineers", in order to <br /> expedite the approval of the permit package (see Appendix L). <br /> SECTION 3.0 <br /> '-J REGIONAL GEOLOGY AND HYDROGEOLOGY <br /> The project site (Desert Petroleum Station #787) Iles within the northwestern edge <br /> of the San Joaquin Valley which is the southern half of the Great Central Valley <br /> geomorphic province of California. The Coastal Range province is the western <br /> boundary and the Sierra Nevada province is the eastern boundary of the Great <br /> Central Valley. All three of the above mentioned provinces trend in a northwesterly 1 <br /> directon along with the major faults which are associated with the province <br /> boundaries. The Central Valley province represents the low position basin <br /> separating the Sierra Nevada and Coastal Range mountain masses. Erosion of the <br /> mountain masses produce sedimen::p,which are carried into the valley and deposited <br /> as sequences of clay, silt, sand and gravel formations, ;-ro-tominately:. . <br /> unconsolidated. The valley is continually subsiding, allowing t kaposite'' =i <br /> sediments to build- up and become thicker, with little effect upon the surface <br /> elevations. The final result is a thick sequence of sediments (gravels, sands, si!'s ' <br /> and clays) along with the associated folds and faults.. <br /> 1 <br /> page 8 <br />