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EXHIBIT "A" <br /> <br />October 5, 1988 PROPOSAL PR88056 <br /> <br />City of Pleasanton <br />Post Office Box 520 <br />Pleasanton, CA 94566 <br /> <br />Attention: Mr. Joseph Elliott, <br /> Director of Public Works <br /> <br /> SUBJECT: Geotechnical Investigation For <br /> Road Failure Evaluation <br /> West Las Positas Boulevard <br /> Between Sta. 18+00-21+00 <br /> North Pleasanton Improvement District <br /> Pleasanton, California <br /> <br />Gentlemen: <br /> <br />As requested, we are submitting this proposal to perform a <br />detailed Geotechnical Investigation at the above referenced site. <br /> <br />A preliminary evaluation of the pavement failure experienced <br />between Sta. 18+00 and 20+00 of West Las Positas Boulevard was <br />recently performed by BSK & Associates and the results were <br />summarized in our report P88115, dated September 26, 1988. The <br />preliminary evaluation revealed that deep seated ground slippage <br />is taking place at the subject area, causing wide pavement cracks <br />as well as cracks in the adjoining right-of-way and northern bank <br />of Arroyo Mocho Canal. The purpose of a more detailed <br />investigation is to (1) assess subsurface soil conditions, <br />(2) define the potential slip planes(s), and (3) recommend <br />measures to stabilize the roadway at the subject area. <br /> <br /> PLEASANTON <br /> ENGINEERING DEPT. <br /> <br /> Soil Engineering, Engineering Geology, Engineering Laboratories ,Chemical Laboratories <br /> <br /> [] Fresno, California 93706 · 1645 "E" Street, Suite 105 · Telephone (209) 485-3200 <br /> Fax (209) 485-7427 <br /> ~ Fresno, California 93706 · 1414 Stanislaus Street · Telephone (209) 485-8310 <br /> _~ Visalia, California 93291 · 808 E. Douglas Avenue · Telephone (209) 732-8857 <br /> [] Bakersfield, California 93304 . 117 "V" Street · Telephone (805) 327-0671 <br /> ~] Pleasanton, California 94566 · 5729-F Sonoma Drive · Telephone (415) 4624000 <br /> <br /> <br />