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PUBLIC HEALTH SERVICES pPqu - <br /> SAN JOAQUIN COUNTY <br /> JOGI KHANNA M.D.,M.P.H. <br /> Health Officer <br /> C4C/FO'R N`P <br /> P.O. Box 2009 (1601 East Hazelton Avenue) • Stockton,California 95201 <br /> (209) 468-3400 <br /> "APR 1 1991 <br /> �J <br /> WILLIAM HEMPHILL <br /> ROYAL OAKS SAVINGS AND LOAN <br /> P O BOX 1007 <br /> MANTECA CA 95336 <br /> RE: Royal Oaks Savings & Loan IN REPLY REFER TO SITE CODE: 2393 <br /> 510 N. Main <br /> Manteca, CA <br /> We have completed our review of the Final Remediation Plan dated <br /> October 24 , 1990; the Final Soil Remediation Report Amendment #1 <br /> dated December 13 , 1990; and the Final Remediation Plan Addendum #2 <br /> dated January 24, 1991 submitted by WHF Environmental Consultants, <br /> Incorporated. <br /> Based on the information provided in the above reports, we agree <br /> that the soil at this site has been sufficiently remediated and <br /> that no further action regarding the soil is required. <br /> On February 8, 1991, Margaret Lagorio, Senior REHS, met with you <br /> and your consultants at our office to discuss this site. At that <br /> time groundwater investigation and remediation activities were <br /> discussed. It was our recommendation that further investigation of <br /> the site be conducted before groundwater extraction is started. <br /> On February 11, 1991, and March 12 , 1991, water samples were <br /> collected from the existing monitoring wells. Our office has been <br /> verbally notified by Steve Furnas, WHF Environmental Consultants <br /> R. E.A. , that, based on the results from the February 1991 sampling, <br /> groundwater extraction was no longer being recommended by their <br /> firm. The sample results from February and March 1991 should be <br /> incorporated into a new groundwater remediation plan and submitted <br /> to our office. <br /> Existence of a downgradient well should be confirmed. In January <br /> 1989 the gradient was shown to be to the southeast, in February <br /> 1989 and November 1989 the gradient was shown to be to the east, in <br /> December 1990 the gradient was shown to be to the northeast. <br /> Documentation for gradient determination should be provided to this <br /> office and additional measurements should be made to confirm the <br /> gradient. If the gradient is confirmed to be to the northeast, a <br /> monitoring well should be placed in that direction. <br /> A Division of San Joaquin County Health Care Services 0 <br />