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06x`03/99 16:40 FAX 510 313 0344 QST MARTINEZ 01:12/007 <br /> ENVIRONMENT AL <br /> June 3, 1999 <br /> Mr. Jeff'Wong <br /> San Joaquin.County Public Health Services <br /> Environmental Health Division <br /> 304 E.Weber Street, 3O Floor <br /> Stockton,CA 95202 <br /> SUBJECT: Addendum Workplan for Phase 11 Soil Boxings for Cargill, Inc- and <br /> Continental Grain Comppy Located at 1805 11aarbor Rd., Stockton, San <br /> Joaquin County,California <br /> QST Project No.5398339-1002 <br /> Dear MT. Wong- <br /> The following is an addendum to a wo>tlan submitted on Nisch 9, 1999 for the subject site. The <br /> work included in the March 9 workplan was completed on April 20 and 21. Cargill Inc., and <br /> Continental (pain Company are performing this work as part of a property trausactiom This <br /> addendum is for one additional soil boring with a grab groundwater sample The site is located on <br /> the north side of Harbor Blvd. between Harbor Blvd and the Stockton Channel. (See Site Map <br /> Figure). Continental Grain Company cuderctly operates a seed and grain processing and storage <br /> facility at the site. <br /> Scope of Work <br /> QST will advance one shallow soil b depth of 100 feet or first ground water using a hollow <br /> stem auger drilling system Spectrum of Stoeldon, California will be the drilling <br /> subcontractor and has a C-571icenm to operabetYn California. The soil boring willbe conducted <br /> under the direct supervision of QST Geologist Prior to drilliv g QST will notify`undesground alert.. <br /> as well as site operating engineers of the proposed borehole locations in or&r to determine if <br /> underground utilities are present in this area. In addition,the day of drilling, QST will clear each.. <br /> borehole with a band auger to a depth of five feet. QST will log the borehole in accordance with.'.. <br /> the Unified.Soil Classification System(USCS). Additionally,QST will observe and note soil color;: <br /> relative density or stiffness, moisttire content, odor (if obvious)and organic content(if present):• ' <br /> QST will record all observations on geologic boring logs. <br /> 1340 Amoid Drive,Ste. 126,Mardnez,CA 94553-Phme 925.313.0&40,FAX 925,'3 13-0944 <br /> Formerly Envimnmenml Science&Engineering.Ing. <br />