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�II �C�T� }PEALTH <br /> AEGIS ENVIRON MENTA,30JL1JR,1d' 20 <br /> 1050 Melody Lane, Suite 160,Roseville, CA 95678 ♦ 916.782-21101916.969-2110 1 FAX 916.786-7830 <br /> July 2, 1993 <br /> Mr Kenneth Earnest <br /> Environmental Specialist <br /> Ultramar Inc <br /> 525 West Third Street <br /> Hanford, California 93232-0466 <br /> Subject- Second Quarter 1993 Groundwater Monitoring Report <br /> Beacon Station #696 <br /> 2448 West Kettleman 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 April 14, 1993, <br /> at the subject site (Figure 1) The monitoring included measurements of depth to water, <br /> subjective analysis of free product, and collection of groundwater samples <br /> GROUNDWATER ELEVATIONS <br /> Prior to purging, Aegis personnel collected measurements of depths to groundwater on <br /> April 14, 1993 Groundwater level data from March 1992 to date, are summarized in <br /> Table 1 Previous groundwater level data are included in Attachment 3 All <br /> measurements of depths to groundwater were conducted according to the Aegis <br /> standard operating procedures (SOP) included in Attachment 1 On the basis of the <br /> Apnl 14, 1993 measurements, groundwater is estimated to flow generally to the southeast <br /> (Figure 2) at an average gradient of approximately 0.008 ft/ft In general, groundwater <br /> levels have generally increased 1 5 feet compared to the February 1993 event. <br /> e2-734c iiRr <br /> GEOLOGISTS • ENGINEERS • GROUNDWATER SCIENTISTS <br /> I <br />