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1 � <br /> i <br /> _ s <br /> 1f <br /> r sem. t 1f �fifi?3 ',� <br /> - <br /> ! n .0 SfBTT���j�((�sA <br /> May 12, 1998 <br /> Mr. Ron Rowe <br /> San Joaquin County Depart'rr►ent of Public Health Services <br /> Environmental Health Division <br /> 304 East Weber Avenue, 3m Floor <br /> Stockton, California 95201-0388 <br /> Re: Addendum to Well Installation Report <br /> Shell Service Station <br /> 341 Main Street <br /> Ripon,California <br /> WIC#204-6562-0804 <br /> Cambria Project#24-324-11 <br /> Dear Mr. Rowe: <br /> On behalf of Shell Oil Products Company(Shell), Cambria Environmental Technology, Inc. (Cambria) <br /> is submitting this addendum to Cambria's Well Installation Report dated April.28, 1998, which includes <br /> the laboratory analyses of soil permeability to water. <br /> Selected soil samples from below the water table were analyzed for permeability to water by ASTM <br /> Method D-5084. Soil sampl'es.from MW-I at 30.5 -32 ft and 22.0-23.0 ft below ground surface were <br /> selected. The results are summarized in Table 1. The laboratory analytical reports are included in <br /> Attachment A. <br /> CAMBRIA We look forward to continuing to work with you on this project. Please call if you have any questions <br /> or comments. <br /> ENVIRONMENTAL <br /> TECtkNOLOGY,INC. Sincerely, <br /> Cambria Environmental Technology, Inc. <br /> 1144 65TH STREET, <br /> SUITE B <br /> Owen Ratchye, P.E. <br /> OAKLAND, Project Engineer <br /> CA 94608 Attachments: A-Laboratory Analytical Report <br /> PH:(510)420-0700 <br /> cc: A.E. (Alex)Perez, Shell Oil Products Company, P.O. Box 8080, Martinez, California 94553 <br /> FAX;(510)420.9170 <br /> GARIP34 I Teporiffransmittal of Perineability.WPD <br /> i <br />