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APR --22--99 THU 12:18 PM FOOTHILL ENGINEE ING 2099] 357 1163 P.01 <br />4�'�F�� EgRING <br />FI�G�E <br />1�79.3 pADDY CREEK LAME LODI, CA 95240 <br />PH. CLAM) 366=9381 FAX C2-09) 367-1163 <br />Harlan Knott <br />San Joaquin County Public Health Services <br />Environinental Health Division <br />P. O. Box 388 <br />Stockton, CA 95201 <br />Fax: 464-0138 <br />Subject: Sun West Liquors, 2449 W. Kettlernan Lane, <br />Dear Sir: <br />22, 1999 <br />S301AH2S <br />--4 j--IV3 H 1 i41 n '1' 6' 1�`. \:. <br />L998dV <br />.�.* gra , <br />The Sank, financing the future development of the Sun West Liquors property has requested the <br />installation of a monitoring well and water sampling at ft location noted on the attached drawing. <br />The following is a work plan for the environmental ass ssment requested by the Bank. <br />History <br />On 7110/1998 Thorpe Oil of Lodi California removed he three gasoline UST f7ronr the Sun West <br />Property. Soil samples from under the UST's and dhe diq pensee piping indicated that some leaks had <br />occurred during the life ofthe gasoline sates operation. Foothill Engineering did a site investigation <br />to determine the vertical and horizontal extent of the gasoline contamination on 8/1311998 and <br />81211199$. The a listing of the results of analysis of th soil samples is attached. <br />THE WORK PLAN FOR INSTALLING APIA <br />Procedure <br />Geomatrix Consultants of San Francisco California w <br />of one monitoring well (see attached map). An eight <br />feet bgs with a hollow stern auger. Samples will be <br />samples will be screened by Geomatrix both visua <br />hydrocarbons. If hydrocarbons are detected the sample <br />if hydrocarbons are detected aconductor casing will brt <br />continue to a depth of fifty feet. The monitoring we <br />casing with ten feet of screen between 40 to 50 feet <br />attached). <br />The monitoring well will be developedand purged <br />approved by the PHSIEI3D. Water sample will by e <br />Sample Analysis <br />Samples selected will be transported under chain of <br />for analysis. Samples will be analyzed by EPA me' <br />(TPH Gasoline). Samples selected by the PHSIE <br />A MONITORING WELL <br />l oversee the installation and development <br />Ich soil bore will be made to a depth of 35 <br />ctracted at five foot or less intervals_ The <br />� and with a PID meter for evidence of <br />ill be sealed and retained for analysis. Also <br />nstalled. The soil bore, with sampling, will <br />will be constructed of two inch PVC well <br />i.(see monitoring well construction details <br />standard methods used by the industry and <br />acted from the well and sealed for analysis. <br />ody to an approved state certified laboratory <br />is 8020 (BETX), .and 5034/8015 (M) LUFT <br />inspector on the site will be analyzed for <br />