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PUBLIC HEALTH SERV ICES <br /> P4 <br /> SAN JOAQUIN COUNTY <br /> P.' <br /> ENVIRONMENTAL HEALTH DIVISION �: :. :4.< <br /> Ernest M. Fujimoto, M. D., M.P.H., Acting Health Officer <br /> 304 E. Weber Ave., Third Floor • P. O. Box 388 • Stockton, CACL <br /> 1- 88 <br /> 209/468-3420 <br /> Ll <br /> DANTE NOMELLINI SEP 3 d 1996 <br /> NOMELLINI CONSTRUCTION COMPANY <br /> P0BOX 1461 <br /> STOCKTON CA 95201 -1461 <br /> RE: 1045 W CHARTER WAY SITE CODE: 1779124 <br /> STOCKTON CA <br /> San Joaquin County Public Health Services, Environmental Health Division (PHS-EHD) has <br /> completed the review of the "Corrective Action Plan Addendum" dated February 21 , 1996 and the <br /> "Remedial Action Workplan" dated April 1996. PHS-EHD offers the following comments for your <br /> consideration. <br /> Review of groundwater contaminant concentrations over time and of depth to water data over time <br /> reveal the following: <br /> Depth to water increased over time. <br /> The 'bore" monitoring wells contaminant concentrations increased over time. <br /> The perimeter wells showed either stable or decreasing concentrations over time. <br /> Based on these observations, remediation at the site should be concentrated in the "core" area <br /> only at this time. This will likely reduce the hydrocarbon mass in this area to a stable or declining <br /> state and will reduce the overall cleanup costs for the site. Please proceed with a specific design <br /> and cost estimate for a modified remediation system for the "core" area and submit to PHS-EHD <br /> for review. <br /> If you have any questions or wish to discuss this letter in more detail, please contact Linda <br /> Turkatte, Senior REHS , at (209) 468-3441 . <br /> Donna Heran, REHS, Director <br /> Environmental Health Division ( <br /> Linda A. Turkatte, Senior REHS Margare agorio, REHS <br /> Site Mitigation Unit Supervisor <br /> LT <br /> c: CVRWQCB, Beth Thayer <br /> c: SWRCB Cleanup Fund, Steve Marquez <br /> c: Advanced GeoAnalytical, Tim Cuellar <br /> A Division of San Joaquin County Health Care Services <br />