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i <br /> k" KLEINFELDER <br /> An employee owned company <br /> File No. 23814.G01 <br /> November 25, 2002 <br /> Mr. Richard Stellmacher <br /> 17390 Kroll Road <br /> Lodi, CA 95240 <br /> Subject: SOILS SUITABILITY AND NITRATE LOADING STUDY <br /> 10550 E. STATE HIGHWAY ROUTE 12 <br /> LODI, CALIFORNIA <br /> Dear Mr. Stellmacher: <br /> Kleinfelder is pleased to present the results of our soil suitability and nitrate loading study for six <br /> residential parcels to be located at 10550 E. State Highway Route 12 west of Lodi, California. <br /> The purpose of our study was to determine the suitability of the property for septic tank usage. <br /> The study was performed in general accordance to the requirements of Section 9-101000 of San <br /> Joaquin County Ordinance. The following includes background information regarding the <br /> proposed development, present use of the site, and the groundwater depth in the project area. In <br /> addition, discussions regarding our investigative procedures and the site conditions encountered <br /> during our field exploration and the results of percolation tests are presented. Finally, the results <br /> of our nitrate loading calculations and project limitations are provided. <br /> PROPOSED DEVELOPMENT <br /> On a preliminary basis, we understand the subject 23.6-acre project site will contain six parcels, <br /> and a single family residence will be built on each lot. We understand.that San Joaquin County <br /> will allow two homes to be placed on each lot. Accordingly, per San Joaquin County <br /> Environmental Health Division (SJC/EHD) criteria, our analysis is based on the assumption that <br /> two homes will be placed on each parcel. At the time of our investigation the site was a vacant <br /> field that had been recently disced. A gravel road ran along the east side of the site. <br /> We anticipate that waste disposal for the houses will be provided by individual on-site sewage <br /> disposal systems consisting of a septic tank/leach trench sewage disposal system. <br /> GROUNDWATER DEPTH <br /> During the time of our investigation, groundwater was not encountered. Lines of Equal Depth to <br /> Groundwater contour maps published in groundwater reports by the San Joaquin County Flood <br /> �C24d328114N4..?GK0��1/,S.n,Tff�e011��i2R8r!1,n,4�c November 25,2002 <br /> KLEItRaW K—e282STrAriciyrtle Street,Stockton,CA 95205-4794 (209)948-1345 (209)948-0621 fax Page 1 of 4 <br />