Laserfiche WebLink
�s <br /> Roy F.Weston,Inc. - <br /> One Concord Centre,Suite 1580 <br /> 2300 Claylorf-Road r <br /> 8 Concord,California 54520-2148 <br /> MDMGNEMMULTANTS 510-603-7900•Fax 510-603-7901 <br /> 15 December 1995 <br /> Ms. Mary Meays, Senior REHS <br /> San Joaquin County Public Health Department <br /> Environmental Health Division <br /> 304 East Weber Avenue <br /> P.O. Box 388 <br /> Stockton, CA 95201-0388 W.O. 03733-007-001 <br /> Subject: Response to Comments <br /> Dear Ms. Meays: <br /> After careful consideration of your comments on the "Phase III Site Investigation Report," Roy <br /> F. Weston, Inc. (WESTON®) prepared the following responses on behalf of Mr- Richard <br /> Callistro of San Joaquin County Capital Projects. <br /> Comment: The report included the results of the July 1995 soil and groundwater investigation. <br /> Two replacement wells were installed, MW2A and MW3A, since both MW2 and MW3 have <br /> been dry for several years. However, only MW3 was destroyed because PHS/EHD requested <br /> that MW2 be retained for possible use during a further remediation effort. Figure 2 indicated <br /> that monitoring wells, MWI, MW2, and MW3 were destroyed. Please correct this figure and <br /> submit a revised Figure 2. <br /> A revised Figure 2 is attached. <br /> Comment: The report also included correspondence from Nolte and Associates indicating the <br /> elevations of wells MW2A and MW3A, but failed to include a site map or reference points <br /> which are usually submitted with licensed surveyor's reports. <br /> Nolte and Associates did not include a site map with their submittal. The elevations of <br /> wells MW2A and MW3A were tied to MW7. <br /> Comment: Soil contamination was observed during the installation of monitoring wells MW2A <br /> and MW3A. Analytical results obtained from the samples submitted evidenced soil <br /> contamination in MW2A from 30-45 feet below ground surface. PHS/EHD staff requested that <br /> the soil samples obtained from below groundwater level be submitted for analysis, so that the <br /> mass of contamination could be estimated; since contamination adsorbed to soil and below the <br /> groundwater level will continue to leach into the groundwater. Samples were not collected <br /> below the groundwater level for laboratory analysis as requested. <br /> L\PKOJ=S\S JOQU ESPCOM.hr <br />