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PUBLIC HEALTH SERVICES (it41 <br /> SAN JOAQUIN COUNTYaENVIRONMENTAL HEALTH DIVISION Ernest M. Fujimoto, M.D., M.P.H., Acting Health Officer PJoaquin <br /> 445 N San Joagn Street • P.O Box 38$ • Stockton, CA 95201-03$$ <br /> (209) 468-3420 <br /> MIKE BEAN L <br /> CHIEF OF PLANT OPERATIONS C CL <br />' STOCKTON DEVELOPMENTAL CENTER <br /> 510 E MAGNOLIA STREET JAN 3 0 1995 <br /> STOCKTON CA 95202 <br /> RE Stockton Developmental Center SITE CODE 1165 <br /> 5I0 E Magnolia Street <br />' Stockton CA 95202 <br /> San Joaquin County Public Health Services Environmental Health Division (PHS/EHD) has reviewed the Revised <br /> Technical Workplan Phase II Site Investigation workplan for Tank Site #3 dated January 12, 1995 which was <br />' submitted by Tetra Tech Inc for the above referenced site <br /> The workplan discusses the site background and the reason for conducting the investigation The workplan describes <br />' the type and location of bonngs to determine the lateral and vertical extent of soil contamination in the tank and <br /> pipeline area for tank #3 which was removed from service on May 5, 1991 <br /> The detection limits used for Laboratory analysis shall follow Tri-Regional and LUFT guidelines Soil samples shall <br /> be analyzed at the following detection limits <br /> BTEX 005 ppm Benzene, Toluene, Ethyl Benzene, Xylene <br />' TPH-g 1 0 ppm Total Petroleum Hydrocarbons as gas <br /> TPH-d 10 ppm Total Petroleum Hydrocarbons as diesel <br /> Please submit a drilling permit application along with the$89 processing fee to PHS/EHD A permit shall be issued <br /> prior to drilling PHS/EHD shall be notified 48 hours prior to drilling on site to observe sampling and grouting <br /> procedures Drilling on site shall be scheduled to begin within thirty days of the date of this letter <br />' For further information please contact Steven Sasson at (209) 468-3498 <br /> Donna Heran, REHS, Director <br />' Environmental Health Division <br />' Steven Z . kL- <br /> enior REHS Diane M Hinson, REHS <br /> Site Mitigation Unit Supervisor <br />' S5 <br /> c Mary Cooper, Division of the State Architect <br />' cc Phil Skorge, Tetra Tech <br /> cc Dan Batrach, Tetra Tech <br /> cc EIizabeth Thayer, RWQCB <br /> cc Barbara Anderson, S WRCB <br />' A Dmsmon of 4.4n ivagwn[mint-, Health Cara `tv iu, <br />