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t <br /> 1050 Melody Lane, Suite 1 i60„Rosevi l� rf'ca��fornia 95678 <br /> ?40 Fox("6)7867830 <br /> EQ1MV <br /> ®ENVIRONMENTAL, INC. <br /> October 11, 1993 <br /> Mr Kenneth Earnest <br /> Environmental Specialist <br /> Ultramar Inc <br /> 525 West Third Street <br /> Hanford, California 93232-0466 <br /> Subject Third Quarter 1993 Groundwater Mondonng Report <br /> Beacon Station #695 <br /> 900 South Cherokee Lane, Lodi, California <br /> Dear Mr Earnest <br /> Aegis Environmental, Inc (Aegis), is pleased to provide Ultramar Inc , this report <br /> documenting the results of quarterly groundwater monitoring conducted on <br /> August 19, 1993, at the subject site (Figure 1) The monitoring included measurements <br /> of depth to water, subjective analysis of free product, and collection of groundwater <br /> samples <br /> GROUNDWATER (ELEVATIONS <br /> Prior to purging the wells, Aegis personnel collected depth-to-water measurements on <br /> August 19, 1993 Groundwater level data from February 1992 to date are summarized <br /> in Table 1 Previous groundwater level data are included in Attachment 3 All <br /> measurements of depths to groundwater were conducted according to the Aegis standard <br /> operating procedures (SOP) included in Attachment 1 On the basis of the current <br /> measurements, groundwater flow cannot be determined This anomaly is believed to be� <br /> caused by the vapor extraction centered in the area of the tank basin Groundwater <br /> levels have decreased an average of 2 5-feet compared to the last monitoring event in <br /> Apra! 1993 <br /> 92 7330 RPT <br />