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ENVIRONMENTAL.. <br /> GROUPING <br />' • ' " .. - .1... � tie Jn - ,'.;j./' ` �' 4 «- .. <br /> . .. ��'. Lr .•.- Iii-F,(/' '`• -. :t..,,' � R <br /> December 19, 19 <br /> 97 <br /> Pro•ect 920-078.1A .�j 'x' .:[(� A QQQQ- <br /> ' •4''y. �r • 'DEC'.` �. ,1JJ� .- <br /> �;t„ a ,•,` .'s, :. <br /> ". t:1 '1/1t- 0NkAEt 1Al„. H,r'"'v. 1 . ;'. <br /> '.. . Ms.Mary Meays PE1MET :fid '1't <br /> San Joaquin County Public Health Services" <br /> - <br /> Environmental Health'Divisioii <br /> 304 E. WeberAvenuerd <br /> T1u 'Floor. .: = <br /> - <br /> Stockton, CA .95201-0388 ` r ,� <br /> "�� <br /> Re: Addendum to Work Plan :_: ;Y . s. . <br /> c' -055.7Chevron Service Station 9 {' g <br /> .4 - - <br /> 139 South Center.Street' <br /> Stockton,California <br /> Site Code:'-'1039 . <br /> Dear Ms. Meays: 4 <br /> This letter, preparedfby Pacific'Environmental Group,Inc (PACIFIC)on'behalf•of <br /> Chevron Products Company(Chevron);'presentsa.response to your letter;dated <br /> December 4, 1997,which refers to`PACIFIC's Soil arid Groundwater Investigation'. <br /> " "Report and Work Plan;_:dated.November 24,,1997: 'The San Joaquin County Public <br /> Health Services Public Health Services_E_riYironn ental,.Health Division(PHS/EHD)' <br /> comments are in bold'italcs. '` <br /> °The report included a`work plan to'continue the' off site iinvestigatiori with the <br /> ' installation of two monitoring wells downgradient of MW8 which-was recently <br /> y ; <br /> installed-and which evidenced groundwater contamination, the advancementof a. <br /> hydropunch bo Ing•location downgradieni of:MW8, and the.installation of a <br /> monitoring well cross'gradient of MW2..PHS/EHD'concurs that the extent•of <br /> In <br /> igration of the`groundwaler plume off site had not been determined and requires, <br /> additional <br /> in vesti action. Y ' z• <br /> PHS/EHD'mmt reiterate the'seriousness of the-contamination whick has been` <br /> evidenced and tlie.time durin which it Lias taken:to de ine the ezten 'o <br /> g /' f I <br /> 'contamination. Please submit'an addendum Yo this work plan which includes a scope <br /> of.work.which:will dune.the vertical and Horizontal.extent of tie soil anal' ' <br />' ... . `f'.k 9t Vis} •y`'` \ . '.,, `.�• ..., _ •` '� <br /> 11315 Sunrise Gold Circle,Surte 1v1 Rancho Cordgva Cali#ofnia.95742 •(91.6)$58 2350?` FAX(916)858-2355; <br />