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KLEINFELDER <br /> An employee owned company <br /> File No. 18492.G01 <br /> July 16, 2002 <br /> Mr. Robert Blair <br /> Fed Ex Freight West <br /> 6411 Guadalupe Mines Road, Suite 2185 <br /> San Jose, CA 95120 <br /> Subject: SOILS SUITABILITY AND NITRATE LOADING STUDY <br /> FED EX FREIGHT WEST FACILITY <br /> 4520 SOUTH HIGHWAY 99 EAST FRONTAGE <br /> STOCKTON, CALIFORNIA <br /> Dear Mr. Blair: <br /> Kleinfelder is pleased to present the results of our soil suitability and nitrate loading study for a <br /> proposed shop building and replacement area for an existing septic system to be located at 4520 <br /> South Highway 99 East Frontage in Stockton, California. The purpose of our study was to <br /> determine the suitability of the property for septic tank usage. The study was performed in <br /> general accordance to the requirements of Section 9-10100© of San Joaquin County Ordinance. <br /> The following includes background information regarding the proposed development, present <br /> use of the site, and the groundwater depth in the project area. In addition, discussions regarding <br /> our investigative procedures and the site conditions encountered during our field exploration and <br /> the results of percolation tests are presented. Finally, the results of our nitrate loading <br /> calculations and project limitations are provided. <br /> PROPOSED DEVELOPMENT <br /> On a preliminary basis, we understand the subject 11.9-acre project site will contain a new shop <br /> building. The site currently contains an office building and loading dock area. According to Mr. <br /> Dylan Paxton, the AM Operations Manager for the facility, a maximum of approximately 50 <br /> employees are at the site on a daily basis. No cafeteria facilities are on site. <br /> We also understand that the existing building's septic system requires a 100 percent replacement <br /> area apart from the shop building's septic system. We anticipate that waste disposal for the new <br /> building and the replacement area will be provided by individual on-site sewage disposal <br /> systems consisting of septic tank/leach trench sewage disposal systems with seepage pits. <br /> GROUNDWATER DEPTH <br /> During the time of our investigation, groundwater was not encountered in our test borings. Lines <br /> of Equal Depth to Groundwater contour maps published in groundwater reports by the San <br /> 18492.G01/ST02R254 July 18,2002 <br /> KLEINIPE�W?RKle!qg4ltas%Yrtle Street,Stockton,CA 95205-4794 (209)948-1345 (209)948-0621 fax Page 1 of 4 <br />