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i <br />' Mr Harlin Knollr�, <br /> t Environmental Health Division I I V <br /> San Joaquin County <br /> 24 October 2000 <br /> • Page 8 <br />' ❑ Total mass calculations indicate that approximately 1/4 pound of total <br /> petroleum hydrocarbons remain on site <br />' ❑ According to the California Water Service, there is no groundwater drinking <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 RWQCB'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 review these data and issue a letter requiring no <br /> further action at this site If you have any questions or comments regarding this letter, <br /> please call Harry Takach of Orion at 562/988-2755 <br /> Very truly yours, 0 .� P. <br /> E <br />' ORION ENVIRONMENTAL INC. C/D <br /> CD <br /> ' a <br /> No. C 044742 rn <br /> Exp. <br /> crJ9 C!V 41L <br /> ' Harry J Takach, PhD rey P Gwinn, P E TF OF CA0p� <br /> Senior Protect Manager Vice President <br /> 1 <br /> Copy Debra Hamlin — Bridgestone/Firestone, Inc <br /> Marty Hartzell — Central Valley Regional Water Quality Control Board <br /> ' Enclosures Table 1 <br /> Table 2 <br /> ' Figures 1 through 3 <br /> Attachment 1 - Well Purging and Sampling Logs <br /> Attachment 2 - Analytical Laboratory Reports and Chain-of-Custody Forms <br /> Attachment 3 - Field Investigation and QA/QC Procedures for Groundwater Sampling <br /> I• <br /> ' S \BFS\STOCKTON\LTR\LTR005 110C 10/24/00 <br />