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il­-_­7­_�� c „_ _ <br /> IN .,a�. ..'. '.T9?r s...ge�-s..' a r'`: ` ': '''_ �R` �"'im' rF^ ss stet` ._ , . ,: "` � .T"� m —••�m:7x.F 7. <br /> �'�2 '�-"-` n::3`-.. <br /> �.ssL, +g xma atm F rr+.n tr r <br /> 11 <br /> MEAN , <br /> t <br /> untriplea ware obtalned from the gntioline ate>rage tank pit, and would not I;p <br /> until the completion of excnvation to remove nil obviounly contnminnted tioil. <br /> Sampling wag than to be performed to entablinh the levnla of realdunl <br /> contamination at the furthest oxtrnt of the excavation. During thins viait to <br /> the nite, rtoll asr,mplon warp obtoinnd from be+.nenth the watite oil atoruge tank. <br /> The deticriptiun or thn %.none oil tank unmpling cnn be found in hitsine Tech <br /> Servicon, Inc. S+empling Relaort 88055-C-2. <br /> Pernonnel from our staff returned to the rtubjoct nite on Friday, Fobrunry 26, <br /> 1888 to obtain nsmplen after the ridditiontil excavation of the gntiolin+a trsnk <br /> pit. Ono onriple sats obtained from the gntiolina tank pit nt 4 depth of <br /> twenty-five fent 125'1 below grade. Stockpile snmpltas were aloo obtained <br /> .. from the material that was excavated from they gaaolino tank pit. A <br /> description of thin sampling activity can be found in Blaine Tech Servicc#, <br /> Inc. Sampling Report 88057-C-1. . <br /> Our third visit to the subject atite on Thursday, October G. 1988 Involved the <br /> collection of atockplia material remaining there from the previous excavf;don <br /> work. lnformution on this particular :trampling activity can be found in <br /> Blain* Tech Services Sampling Report 88280-M-2. <br /> Our fourth visit to the subject site on Tuesday, November 1, 1958 again <br /> involved the collection of samples of the atockpile materfol. Information <br /> for thin particular day can be found in Blaine Tech Servicon Sampling Repo-,.t <br /> 88306-M-3. <br /> i <br /> l SCOPE OF REQUESTED SERVICES <br /> (� In accordance with your request, field personnel mould be dispatched to the <br /> site to observe the removal of three additional ganolinea underground storage <br /> tanks found on the site, coticct samples, arrange for the proper analyses of <br /> the tramples and maintain adequate documentation resulting in the issuance of <br /> a formal Sampling Report. The collection of environmental analplaa was to be <br /> performed in accordance with the requirements of the State Water Resources <br /> Control hoard, Regional Water Quality Control Board, and the specific <br /> directions of the Local Implementing agency (LIA) Inspector present at the <br /> vita at the limn of removal. <br /> EXECUTION OF THE TANK REMOVAL. SAMPLING <br /> Perwnnol from our offices were present at the subject site on Wednesday, <br /> -- — - -Dtecerr6ar-7.-19Sii-to-observe-the-removal of 'znk:--D -E-and F. and to <br /> sail samples from beneath them. These tanks were found during the <br /> instaellntion of groundwater monitoring welts on the subject ails. The <br /> subject site is located within the overall jurisdiction of the Regional Eater <br /> Quality Control Board -- Central Faller Region. Initial inspect€on and <br /> evaluation of the site in customarily conducted by the local Implementing <br /> agency (LIA), which in this case was the San dongvin Lorca) Health Department. <br /> The local Implementing agency was represented by Mr. William Snavely, who wes <br /> ,j present to observe the tank removal and sampling. <br /> Sampling Report 88342-C-1 CHEVRON 1918 SECTION FIVEJpngo 2 <br />