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�r..� ;,� ,i,.'"r.;+v nay.__ � �E ..YrV_�, � ��ti.a 7..n:c.4M ie f �" c�' a 'F��', '' rx v •4 - -- <br /> "7^. s. } :. � !-„�.w ���N rc � ,..r �� :;a >...• f a E L'tt �,.� a �a<'�� °t� 4,y � - �;�.,y ,.i <br /> r <br /> .�_,;, •e.., rtLL�. 4 ,Jr ',� t � s,.J.��r� JN�-,]"'�' w...(?S :.'SrL 1-a � .F�n �, ,�,+. r.c^`+� .� r,.,., �,�fL <br /> 4 . �1 <br /> CT y <br />�x <br /> f� <br /> p <br /> AEGIS ENVIRONMENTAL, <br /> 801 Riverside Avenue,suite C,R058v1tt9�CA 95578 INC.� �. <br /> i + 916.782-21101916.969-2110 J FAX 9IS•786.7830 <br /> f'• Janualy 18, 1991 <br /> � a <br /> j : Mr• Y7illiam Y. Wang <br /> Construction & Maintenance Engineer <br /> Exxon Company, U.S.A. <br /> t 2100 Clayton Road <br /> { Concord, California Suite 1250 <br /> 94524-2032 <br /> F <br /> Subject: PRopOSED WOREPLAN V0R PRE_.XANK SITE ASSESSMENT <br /> PRIOR To TANK/LINL' REpL.ACZtMNT <br /> EXXON STATION RAS 7-0237: <br /> � 1605 South <br /> EZ Dorado, Stockton, California <br /> Dear Mr. Wang; <br /> r- <br /> Aegis Environmental, Inc. (Aegis) is <br /> Company, U.S.A. with this Pleased to provide Exxon <br /> Site Assessment Proposed workplan to conduct a Pre-Tank <br /> prior to the underground fuel storage tank (UST) <br /> _ and product line replacement at the subject site <br /> site investigation will include the drilling and samplin o <br /> slant soil borings adjacent to and below {Figure The <br /> i” Based upon the existing UST f two <br /> P Previous experience in the local vicinity of the site, <br /> L: groundwater is anticipated to be at a depth <br /> greater <br /> below the existing ground surface. Therefore, drilli.ng• activities <br /> i will cease at approximately 55 <br /> intercepted„the bgx.ing will feet. However, if groundwater is <br /> be terminated. <br /> The proposed work is based on information provided to Ae is <br /> recent discussions with the San Jaa g through <br /> Services Department with(SJCthe <br /> quin County Public Health <br /> the area and material provided b Y Exxon County actively working in <br /> to modifications as newly ac y This workplan is subject <br /> r� purpose of the site investigation isred ormation may to determines w £rant. <br /> constituents are present in the soils beneath the existing rolUSTe e <br /> 1 ' and #.f so, to PreliminarilyPetroleum <br /> �. impacted soil. ;cased on the determine the vertical extent of th' <br /> Aegis will evaluate the scope of work necthe 8ite lnve,tigation, <br /> UST and product line replaCement in accordance with t e Proposed <br /> ;,• and recornmendatiorb of the San Joaquin Count guidelines <br /> Services Department, the Tri-Regional staff Rech Public Health <br /> Initial Evaluation and the Leaking Underground Fuel Recommendations <br /> for <br /> Manual. (LrUFT) <br /> 90-205A.vPN <br /> 90-205.WP <br /> GEOLOGISTS ENGINEERS GROUND WATER SCIENTISTS <br /> sa.. <br />