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PUBLIC HEALTH SERVICES <br /> SAN JOAQUIN COUNTY <br /> i ENVIRONMENTAL HEALTH DIVISION ra < <br /> Ernest M. Fujimoto, M. D., M.PH., Acting Health Officer <br /> 304 E. Weber Ave , Third Floor • P. O. Box 388 • Stockton, 5 cur, <br /> 0 <br /> 2091468-3420 <br /> KYLE CHRISTIE bf LED MAY 4 61996 <br /> ARCO PRODUCTS COMPANY <br /> PO BOX 5811 <br /> SAN MATEO CA 94402 <br /> RE ARCO#5450 SITE CODE 505663 <br /> 1617 E Fremont St <br /> Stockton, CA 95203 <br /> San Joaquin County Public Health Services Environmental Health Division, (PHS-EHD) has evaluated the <br /> recent product line replacement report submitted by Brown and Caldwell and has the following comments <br /> Petroleum Hydrocarbon impacted soils removed under a work plan approved by PHS-EHD on May 15, <br /> 1995 may have impacted the shallow groundwater beneath the site In order to verify groundwater <br /> conditions in the west island area at the northern edge(sample T14 area), PHS-EHD will require a <br /> groundwater monitoring well to be installed <br /> Only one well will be required at this time A work plan that addresses the well construction and location <br /> should be submitted to PHS-EHD for review In addition, a well installation permit application along with a <br /> S89 application fee should be submitted with the work plan <br /> Please submit your plan by June 15, 1996 and be prepared to start well installation procedures by July 1, <br /> 1996 <br /> This well should be sampled on a quarterly basis for Total Petroleum Hydrocarbons as Gasoline and the <br /> BTEX constituents as well as MTBE After two consecutive quarterly reports have been received and <br /> evaluated, PHS-EHD will make a decision as to the future need of this well <br /> Please contact Michael Infuma at(209)468-3454 should you have any questions or to make an <br /> appointment to witness the field activities <br /> Donna Heran, REHS <br /> Director Environmental Health Division <br /> Michael Infuma, Senior REHS Marga4 agono, R E H7� <br /> Site MitgationlLOP Unit Lead Senior <br /> JI/ <br /> . c Brown and Caldwell-Joel Coffman, 9616 Micron Ave , Sete 600, Sacramento, CA 95827 <br /> 4 Drvuion of;an loaaum County Health Care Se-vices <br />