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PUBLIO" <br /> HEALTH q�,N <br /> SAN JOAQUIN COUNTY ?° <br /> ENVIRONMENTAL HEALTH DIVISION <br /> Ernest M. Fujimoto, M.D., M.P.H., Acting Health Officer <br /> 304 E.Weber Ave., 3rd Floor • P. O. Box 388 • Stockton, CA 95201-038$ <br /> 209/468-3420 <br /> JOE GURNARD C (0 <br /> LAIDLAW CORPORATION <br /> 4545 INTERSTATE WAY <br /> KINGMAN, AZ 86401 MAILED OCT 31199- <br /> RE: 1444 TILLIE LEWIS SITE CODE: 2454 <br /> STOCKTON CA <br /> San Joaquin County Public Health Services, Environmental Health Division (PHS/EHD) has the <br /> following comments for your consideration. These comments are based on recent telephone <br /> discussions with your consulting firm, Ground Zero Analysis, Inc., regarding the submittal of a <br /> Corrective Ation Plan (CAP) for this site at this time. <br /> Ground Zero Analysis is preparing graphic presentations of groundwater contaminant concentrations <br /> over time and groundwater elevations over time. In addition, they will prepare a graph showing <br /> groundwater contaminant mass over time. It is anticipated that this data will show a declining <br /> groundwater contaminant plume at the site and will be sufficient to justify a no further action status. In <br /> order to fulfill corrective action requirements, this information can be presented with a discussion of the <br /> overall effectiveness and cost of this approach versus that of active approaches. The need to submit a <br /> comprehensive CAP for this site will be determined after the evaluation of this data. <br /> Should the data collected to date prove insufficient for a no further action status at this time, additional <br /> data collection over time may be required to confirm a declining plume at the site. <br /> Therefore, in order to determine a final strategy to achieve regulatory closure at this site, please <br /> submit the information discussed above by December 11, 1995. <br /> If you have any questions, or wish to discuss this letter in more detail, please contact Linda Turkatte, <br /> Senior REHS, at (209) 468-3441. <br /> Donna Heran, REHS, Director <br /> Environmental Health Division <br /> Linda A. Turkatte, Senior REHS Diane*inson, REHS <br /> Site Mitigation Unit Supervisor <br /> LT <br /> c: CVRWQCB, Beth Thayer <br /> C., VJM, Inc. <br /> c: Ground Zero Analysis, John Lane <br /> A Division of San Joaquin County Health Care Services <br />