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.� RECEIVI ENT 1 1 19$9 <br /> PORTERVILLE OFFICE <br /> _ VISALIA OFFICE <br /> R. L. SCHAFER & ASSOCIATES, INC. <br /> V P.O. Bax 3239 <br /> P.O. Box 1388 _ <br /> 881 West Morton St. ,2904 West Main St. <br /> Portervi t orlonColifSt. 93258 ` CIVIL ' ENGINEERS - PLANNERS Visalia, California 93278 <br /> Ph. (209)781-0102/688-6649 Ph. (209)734-1348 <br /> JAMES S. WINTON, RCE 160944 Y! �j t` RICHARD L. SCHAFER, RCE 12616 <br /> DON W. MONK, RCE 25672 - J•A 1� u DUANE T. CALL, RCE 19683 <br /> September 291 198 9 1 �gg9 <br /> Mr. Ron Valinotti , Director r/IfcNl�-� <br /> Environmental .Health Division ENI1SlSF <br /> San Joaquin Local Health District <br /> . 1601 Hazelton Ave. <br /> Stockton, CA 95201 <br /> Subject : Sn' _ Assessment Workplan for Chevron Property at 540 N. <br /> Aror Way, Stockton, CA. <br /> Dear Sir: <br /> At the request of our client, Chevron U. S.A. , R. L. Schafer and <br /> Associates have developed a .revised soil assessment workplan for <br /> the Chevron USA" property investigation on -:—� Street in <br /> Stockton. The - revision is provided in response to a checklist <br /> utilized by your staff to present ' purported deficiencies in the <br /> original document . The revised workplan is enclosed for your <br /> review. We hope this meets with your approval . <br /> We would like to comment on one checklist deficiency in <br /> particular. Specifically, your staff found that the report <br /> a lacked an adequate site map that portrayed the location of the <br /> underground storage tanks, piping and other appurtenances. We <br /> find the request somewhat difficult to comply with inasmuch as <br /> the tanks were' removed in 1987.. We submitted a detailed drawing <br /> showing distances from various surface features .where the. tanks <br /> used to be, but evidently this information was somehow overlooked <br /> or not considered relevant . uest arification of' the <br /> need to provide this information •`lf~3'- �'-CI <br /> The last item we need to inform you and your staff on is some of <br /> the changes in. personnel involved, in. this project. Schafer and <br /> Associates is still the lead consultant but Waterwork consulting <br /> engineers and geologists have replaced John Minney/Absolute <br /> Testing . as the geotechnical specialists. Waterwork is <br /> headquartered in Escalon and therefore can provide closer <br /> ✓� supervision of the implementation phase of the investigation,. <br /> Additionally, the diation contract r will be Scrivner <br /> .Environmental Services of oa 3nga. Their representative is Don <br /> Smith. <br /> Should you have any questions on this matter, please call me. <br />