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k L) <br /> Wm. J. Hunter & Associates 2220 Loma Vista Dr. <br /> Registered Geologists Sacramento, CA 95825 <br /> 1a Petroleum& Mineral Appraisers (916) 972-7941 <br /> FAX (916) 972-1683 <br /> March 5, 1`?93 r <br /> r <br /> Pon Valinoti , Director <br /> Environmental Health Division am D <br /> San Joaquin Co_ Pullin Health Service <br /> 4.45 No. San Joaquin Street MAR <br /> 9 9993 <br /> Stockton, CA 95232 <br /> Ref: Port of Stockton, Wharf 9; site code 12829 ENVNMENTAL HEALTH <br /> R <br /> } Dear. Mr-. Valiroti ; <br /> + 1 <br /> ` I am writing you at the request of the-. Fort of Stockton j <br /> concerning prior environmental problems at the above location. <br /> €''ty firm had performed professional geologic services associated <br /> with a 10,000 gal UST which had been removed in January, 1999 by <br /> Jim Thorpe Oil , Inc. , (JTO. ) Portions of the work were super- <br /> vised, and necessary reports were written by Dennis R. Allen, <br /> C.E. G. , an Associate of Wm. J. Hunter & Associates, (WJH. ) A 4 <br /> brief review of site activity may be helpful ; l will outline <br /> I <br /> pertinent dates and 'events for your information. <br /> January,44999 gal UST, which: liaid: corta'ined: #6, bunker- <br /> "K w <br /> fuel , was removed by JITi, soil =amp1.es�tae'n-. r e' e_aled:;minor- <br /> cont�amihation. s <br /> March 2O'- 1989_ ­ Soy.1. ire-e�,�avatian_ .Worts-firian``su'bnitted`4,to EHD by, <br /> JTO. <br /> July, 1989 - Additonal spoil,. removed per workplan by 'JTO; <br /> laboratory analysis revealed presence of Xylene & TEPH in 2 of <br /> the samples. <br /> Oct. 2' 1989 - County .EHD wrote the Port of Stockton stating <br /> that additional workplans, etc, , must be prepared under direction <br /> of a 'quali-fied registered, professional . s ' <br /> S <br /> March 25, 1990 - Site Assessment Report prepared by WJH & <br /> submitted to EHD staff. Recommended placing 6 shallow hand <br /> auger'ed soil borings for further. site evaluation. <br /> i <br /> I ' <br /> Oct. 2, 1994 - County EHD responded to the SAS'+:, stating. . . . F <br /> "PHS/EHD does not believe -,ix soil borings, hand augared to a i <br /> depth of six feet , will be able to define the lateral & vertical <br /> i limits of contamination. " The , letter also stated that a ground- <br /> water i nvest i Yati ort will be necessary i-f `r ce?"t i+i r-ati cr.", i s be.i.ng <br /> lre6u6sted. i«T <br /> 44 Marchi 1991 `- Discus i o'ns and m.eeti6gs betweanr the -Port:°!o_r <br /> Stockton , JTO„ & EHD staff resulted in EHD apn,:oval- cif• a revised <br /> I <br /> i <br />