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Voice 209468-0337 Fax 209-468-3433 <br /> kSan Joaquin <br /> I Environmental <br /> a , <br /> w <br /> ; <br /> M <br /> L 1 <br /> i� <br /> To: Bill Little From: Mary Meays,Senior RF15 <br /> r <br /> G <br /> Fax: (249}956-0700 Pages: 1 l <br /> s; <br /> Phone: (249) 956-0264 Date: ,June 19, 1997 <br /> i <br /> Re: 24.54:TOSte Road CC: <br /> d <br /> E 0.Urgent p For Review 0 Please Comment ©!Please Reply O Please Recycle: <br /> i <br /> *Comrttents: <br /> 1 have summarized.our telephone conversation today. One or two additional soil. probes will <br /> tae placed m the area-of the former tanks and will be advanced to depths greater than IS feet, <br /> it necessary,.to define the vertical.extent of the soil and groundwater contamination: The soil <br /> probes to be placed astound the former tank pit will be located approximately 10 to 15' from <br /> the probe placed in the tank pit. also`you stated that the boreholes would be measured to <br />` determine the.total;depths at the time of sample collection and that this information would <br /> be.included in the boring_log . .PHS/EHD will be consulted:when determine which soil samples <br /> "Will undergo laboratory analysis. a <br /> i <br /> The borehole's will be advanced to approximately 4 1jifeet below and drab groundwater <br /> samples will be collected. You, stated that you would wait 30 minutes;before continueing <br /> with boring.advancement and making another attempt to collected a .O.r nd eater sample. <br /> Also, should thei soil •contamination extend to or below 20 feet; you .urill collect another <br /> groundwater sample t6 evaluate the vertical distribution cif the groundwater contamination. <br /> r <br /> You stated that since there is a. focus- to the investigation ;in the area of the supposed <br /> groundwater gradient (north} that you will cletermine: the water source fOrr the nearby <br /> agricultural fields and construction and location information for nearby wells: <br /> fou stated that field work would start at 8:00 AM on Jurie 24, 1997 land would stop at 3.0Q t <br /> foo groMinn.. <br /> 4i <br /> l took arward`to working with you:during this phase of the investigation.. <br /> i . <br /> r <br />