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• _ ' � i_ <br /> IMA 'A <br /> �1f Melody Lane, Suite 160, RoseJill@;:C�t�Ia 95678 <br /> Faxf9rd)7867a3a <br /> ENVIRONMENTAL, INC. 44 <br /> RECEIVED <br /> November 15, 1993 NOV 2 2 1993 <br /> ENVIRONMENTAL HEALTH <br /> PERMIT/SERVICES <br /> Mr. Michael Infurna <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> Post Office Box 2009 <br /> 1601 East Hazelton Avenue <br /> Stockton, California 95201 <br /> Subject: Addendum to Workplan for Additional Limited <br /> Subsurface Investigation <br /> Shell Service Station (WIC No. 204-7524-4404) <br /> 3011 West Benjamin Holt Drive <br /> Stockton, California <br /> Dear Mr. Infurna: <br /> Aegis Environmental, Inc., (Aegis),is pleased to provide this additional addendum to the <br /> July 30, 1993, "Workplan for Additional Limited Site Investigation" for the subject site <br /> (Figure 1). <br /> This addendum was prepared in response to our November 5, 1993, telephone <br /> conversation during which you requested that the monitoring well proposed for the west <br /> corner of the site be moved downgradient of the former waste oil tank location. The <br /> revised location is shown on Figure 2. If time permits, a HydroPunch boring may be <br /> drilled in the western corner of the site,in place of the formerly proposed monitoring well. <br /> The information contained within this addendum reflects our professional opinions, and <br /> was developed in accordance with currently available information and accepted <br /> hydrogeologic and engineering practices at this time and for this site. The proposed work <br /> described in this addendum will be performed under the review and supervision of the <br /> professional geologist, registered with the State of California,whose signature appears <br /> below. <br /> Sincerely, SAN JOAQUIN COUNTY <br /> PUBLIC HEALTH SERVICES <br /> AEGIS ENVIRONMENTAL, INC. ENVIRONMENTAL HEALTH DIVISION <br /> P.0. BOX 2009, STOCKTON,CA 95021 <br /> PHONE: (209)468-3420 <br /> Kurt Marlin <br /> Project Manager . (,FED GEp Approved <br /> c <br /> - <br /> ❑ Approved with changes: See Remarks <br /> �GL. io5600 ❑ Disapproved; See Remark6 <br /> Paul Graff Remarks I'/� <br /> Senior Geologist � tfP �— <br /> CRG#5600 <br /> Date 9 ey <br /> Appro al of these plans extends on y tp that <br /> Da a which is shown and described he,seon but <br /> does riot authorize or approve any omission <br /> or deviation of requirements of State laws R <br /> KBM/sdh local Ordinances. <br /> Attachments <br /> cc: Dan Kirk, Shell Oil Company <br /> E. Thayer, Central Valley Regional Water Quality Control Board <br />