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PUBLIC !qE.ALTH SERVICES u <br /> SART JOAQUIN COUNTY <br /> ENVIRONMENTAL NNE TAI A 'I' DIVISION <br /> Ernest M. Fujimoto, M. D., M.P.H., Acting Health Officer -rt ;t• <br /> 304 East Weber Avenue Third:Moor Stockton, CA 95202 � <br /> 209/468-3420 <br /> To. Responsible PrtiesU . . <br /> (See attached list) <br /> Re Stockton Metropolitan Airport Site c6a#: <br /> 56010 South Airport 1Jt1ay <br /> Stdckoh CA 95206 <br /> San Joactuin bounty Public Health Services, Environmental Health Division (PHIafEHI�) has <br /> revi wed.'the Stock bn;Metropolitan Airport correspondence dated May 23; 1997 and the <br /> "Pro osat l nvironrrter#al Site Investigation"" dated June 28, 1996.,PHSAtRD Pias the ailvr lrtg <br /> comments for your consideration. <br /> The Stockton Metropolitan A+sport cinrespondence indicated that the removal,of the rerrrainirig <br /> four underground storage tanks frorri the fuel farm may necessitate a m6 ification of... work . <br /> plan which was proposed for submittal. The four underground tanks were removed on June 19, <br /> 199 ':and the preliminary soil:sampl0 results that PHS/EHD has received indicate that a <br /> rebase of petroleum hydrocarbons occurred. <br /> ince the omple#e lel trratar. re i n is submitted and PHS/E ll has evaluated the results, <br /> Career Aviation, ray 6e named as an additional responsible party. . PHs/EHC ,recommends <br /> that the soil sample results are distributed to all of the responsible parties ft►r their infarm"on. <br /> The proposal indicated that six monitoring wells would be installed and sampled quertarly. Gue <br /> to the location of a proposeH.d well southlsoutheast of the recently removed tanks, PHSIEHI <br /> would likely approve.a workplan which proposed the installation of monitoring wells as <br /> indicated. It v�rill be net scary to continue the soil investigation based on the evidence obtair ed <br /> during..:the recenttank removal activities and problems with subsurface concrete structures that <br /> W ere encountered during the previous soil investigation effort in the area.of formerly removed <br /> tanks. <br /> Please submit by September 8, 1997, a work plan and a drilling permit a{ plic tion with ttte <br /> a asciciated $89 fee to perform the additional soil and groundwater investigation required to <br /> determine the vertical and horizontal extent of the contamination. <br /> Please be aware that PHS1EHD has recommended that each of the:already identified <br /> resppnsible parties submit State Water Resources Control Board Cleanup Fund applications <br /> and#hat efforts are initiated to submit a Co-minded plume application to the Cleanup Fund. <br /> A Division of&-An Joaquin Cc taity>Health Care Services <br />