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Mr. Harlin Knoll <br /> San Joaquin County Environmental Health. Division <br /> 4PRION <br /> ' 1 May 2001 <br /> Page 8 <br /> detected .did not originate from :the site operations and USTs. These <br /> groundwater concentrations are below SWRCB guidelines for low risk sites. <br /> Total mass' calculations estimate: that .approximately 200 pounds of <br /> weathered gasoline remain'on site. <br /> ❑ Accordingto the California Water'Service:" is no groundwater drinking <br /> . g g <br /> well within:2,000 feet of the site. <br /> ❑ The site is paved with asphalt, reducing the likelihood of surface water <br /> infiltration and the potential for migration of the detected constituents in the <br /> soil to groundwater. <br /> ❑ Evaluation of the CWRCB'S guidance document indicates that this site is a <br /> low risk classification site and could be closed without requiring any <br /> remedial activities. <br /> BFS respectfully requests that the SJCEHD and. the RWQCB review these data and issue a <br /> letter requiring no further action 'at' this site. If you have any questions or comments <br /> . regarding this letter, please call Harry Takach of Orion at 562/988-2755. <br /> } <br /> Very truly.yours; Q�Q�ESS1. <br /> 9 <br /> ORION ENVIRONMENTAL INC. ��O F��Y P. <br /> 2. <br /> No. C 044742 <br /> Harry J. Takach,:Ph.D. ffrey P: Gwinn, xgT CIV11- <br /> u Senior Project Manager Vice President FOF CAL�F� <br /> _ Copy: Debra Hamlin—Bridgestone/Firestone, Inc. <br /> Marty Hartzell, RWQCB <br /> Enclosures: Table T Groundwater Aria lytica'l'ResuIts <br /> Table 2 Groundwater Elevations <br /> Table 3 Soil Analytical Results <br /> Figure 1 Site Location Map <br /> Figure 2 , Site Plan <br /> 5:\BF5\STOCKTON\LTR\LTR008.DOC 5/1/01 <br />