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r ��.. ..... ..iv.i 7=" U1L UUL <br /> PUBLIC HEALTH SERvICES �.�. �.. <br /> • SAN JO�QIIIN t:UIlNTY �'�""�":cA;o <br /> JOGI Ya NNA M.U.,M.P.H. <br /> Health Officer • <br /> P.O.Box 2009 a (1601 East Hateltun Avenue) . Stockton,California 93201 <br /> (209)-468-3400 <br /> JUN d 3 1991 itECMED <br /> JUN N t 0 19g1IEC�D UASf SAY DIST <br /> DARRSLL RO13INSON JUN Sim <br /> SHEI I,OIL COMPANY ENVlRO BAY AREA <br /> 1390 WILLOW PASS ROAD <br /> CONCORD CA 94520 <br /> RE: Tokay Shell IN REPLY REM TO SITE CODE: 1906 <br /> tam <br /> 420 W.Kettlen <br /> Lodi, CA <br /> We have completed our review of your'Monitoring Well Installation Results Report"dated March 26,1991, <br /> and 'Quarterly Groundwater Monitoring Report` dated April 30, 1991, prepared by Aegis Enviroarnental, <br /> Incorporated. In the March 26, 1991 report it stated, 'groundwater appears to flow southwesterly to <br /> southeasterly." In the April 30, 1991 report is states the gradient is southeast. Monitoring well 43 is <br /> southwest of both the existing underground tank location and the proposed new underground tauk location. <br /> There is no monitoring well to the southeast of thCalj2 a��, A monitoring well should be installed <br /> southeast of these locations since contamination was found in the soil borings dulled in these two areas. <br /> Submit a work plan for the installation of this monitoring well by July 23, 1991. <br /> Fecal coliform was reported in monitoring well #2 at greater than 16mpl/100m1 (most probable number). <br /> This well shoWd be tested for fecal coliform again during the nem quarterly sonvIing. <br /> Upon review of previous reports there is additional information that should be included in your Next <br /> quarterly report Disposal of the soil generated from drilling borings B1 -B16has not been documented. <br /> In the report dated March 26, 1991, you state that the sod generated from installation of the monitoring <br /> wells was taken to a landfill in Richmond. Provide receipts to verify the soil was disposed of at this landfill. <br /> In the"Pre-Tank Replacement:Site Assessment Results Report'dated October 15, 1989,Aegis Environtnental <br /> recommended removing contaminated soils from the proposed underground tank location and sampling the <br /> soil to confi the exeavauon was "clean" prior to installing the new tanks.' We agree with This <br /> recommendation and anticipate it being incorporated into the future plans for this site. <br /> If you have any questions contact Margaret Lagorio, Senior REHS, of my staff at (209)468.3449. <br /> Jogi Khanna,M.D., M.P.K <br /> Health Offic <br /> v <br /> une A. Cotull RENS,program Manager <br /> viro=ental Health Division <br /> LAC/)&.nr <br /> A Divillion of Son joaquin County Herltil lace Srrvim <br />