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PUBLIC WEALTH SERVYCES <br /> SAN JOAQUIN COUNTY - , . . <br /> ENVIRONMENTAL HEALTH DIVISION _ <br /> Ernest M. Fujimoto, M.D., M.P.H., Acting Health Officer :. <br /> 4�lKOR�� <br /> 445 N. San Joaquin Street • P.O. Box 388 • Stockton, CA 95201-0388 <br /> (209) 468-3420 <br /> Fly <br /> MARGARET EKHOLM <br /> P 0 BOX 247 <br /> ESCALON CA 95320 MAY 10 1994 <br /> RE: Ekholm Property SITE CODE: 1955 <br /> 1702 Jackson Street <br /> Escalon, Ca <br /> San Joaquin County Public Health Services, Environmental Health Division (PHS/EHD) has completed the review <br /> of the "Summary of Additional Site Assessment and Remedial Investigation Results" report, dated March 15, <br /> 1994, and the "Summary Report, Excavation of Former Diesel and waste OR Tank Pits", dated April 12, 1994, <br /> both submitted by RESNA industries, and has the following comments. <br /> The soil sample results taken from the finished diesel tank pit excavation were presented to the PHS/EHD <br /> Technical Review Committee (TRC) on April 20, 1994 for evaluation for tank pit closure. Based on the <br /> results of the solubility testing performed on the impacted soil to be left behind and the lack of volatile <br /> organic compounds in the impacted soil, the TRC concluded that risk to groundwater is limited and that no <br /> further investigative or remedial action for the diesel tank pit is warranted. <br /> The levels of contaminants observed in the former waste oil tank pit area have also been determined not to <br /> pose a risk to groundwater. Therefore, no further investigative or remedial action at this tank pit is <br /> warranted. <br /> As the fult extent of the soil and groundwater contaminant plumes have been physically defined at the site, <br /> a Corrective Action Plan (CAP) must be compiled and submitted to PHS/EHD for review. <br /> The CAP must show the contaminant concentrations and distribution in the soil and groundwater and must <br /> evatuate at least two remedial alternatives to abate the contamination to restore and/or protect the <br /> groundwater to original background levels. Based on the evaluation, the remedial alternative that has been <br /> determined to be the most efficient and cost effective for the site should be chosen. <br /> Please submit a comprehensive CAP to PHS/EHD by June 30, 1994_ <br /> If you have any questions or comments concerning this letter, please contact me at (209) 468-3441. <br /> Donna Heran, RENS, Director <br /> Environmental Health Division <br /> 4w-k—7u-r,� — - <br /> Linda Turkatte, Senior REHS Dian . Hnson,iREH/S <br /> Site Mitigation Unit Supervisor <br /> LT <br /> c: CVRWQCB-Beth Thayer <br /> c: SWRQB-Susan AP49pson (7i'�iLLII�tS <br /> c: Neumilter and Beardstee-Brooke Birke <br /> c: RESNA-Jahn Lane <br /> A Di%ision of San Joaquin County Health Care Services <br />