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American Engineering Laboratories, Inc. <br /> 7940 Arjum Drivr, Suite A <br /> , y ti <br /> San Diego, CA 92126 ' c <br /> Telephone (619) 695.3730 <br /> San Diego• Modest,• Corona• Yucca Vallee <br /> SAN JOAQUIN LOCAL DISTRICT October 10, 1988 <br /> ENVIRONMENTAL HEALTH DISTRICT Job No . : G-6148A <br /> Post Office Box 2009 <br /> Stockton , California 95201 <br /> Attention : Mr . Carl Bergman <br /> Mr . Doug Wilson <br /> SUBJECT : SUBSURFACE BO I G5 <br /> DIRECTLY SOUTH OF BYRON ROAD, <br /> WEST OF CORRAL HOLLOW ROAD <br /> TRACY, CALIFORNIA <br /> Gentlemen : <br /> Based on my conversation with Mr . David Carls and the attached <br /> "Addendum to Proposed Work Plan" , dated August 30, 1988, it was <br /> my understanding that a boring permit had been issued for the <br /> subject site . Mr . Carls had mentioned that grouting the shallow <br /> 5 foot deep borings may be performed at our discretion . <br /> Several of the borings were grouted immediately after drilling <br /> as typically recommended to ensure that surface water and <br /> contaminants do not enter the open borings thereby avoiding <br /> potential subsurface contamination . <br /> During follow-up conversations with Casy Fully, Diane Henson and <br /> Hemi , it was brought to my attention that David Carla is no <br /> longer employed with your department and that he had not issued <br /> a final copy of the boring permit . The absence of a Project <br /> Manager at your office has made handling this investigation very <br /> difficult . <br /> American Engineering Laboratories , Inc . (AEL) is hereby <br /> requesting permission to immediately grout the remaining shallow <br /> borings to conform with current environmental standards . If <br /> inspection of these borings is required prior to grouting please <br /> notify this office immediately . A copy of the above mentioned <br /> boring permit should be issued based on the attached addendum <br /> and our initial conversation with David Carls . <br />