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Avt <br /> r, ,r• #� 4 HCA{ TIi <br /> - 1050 Melody Lane, Suite aQq,#to s -California 95678 <br /> E91a X53 or , 11 An,o A96,7867830 <br /> AM ENVIRONMENTAL, INC. <br /> November 29, 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 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 September 7, <br /> 1993, at the subject site (Figure 1). The monitoring included measurements of depth to <br /> water, subjective analysis of free product, and collection of groundwater samples. All field <br /> activities pertaining to events in this report were conducted according to Aegis' Standard <br /> Operating Procedures included in Attachment 1. <br /> GROUNDWATER ELEVATIONS <br /> Prior to purging, Aegis personnel collected measurements of depths to groundwater. <br /> Groundwater level data from March 1992 to date, are summarized in Table 1. Previous <br /> groundwater level data are included in Attachment 3. On the basis of the current <br /> measurements, groundwater flows to the southeast (Figure 2) at a gradient of<0.01 ft/ft. <br /> Groundwater levels have decreased an average of 3.6 feet compared to the last <br /> monitoring event. <br /> 92.7340.RPT <br />