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I 5 <br /> AZURE ENVIRONMENTAL <br /> July 30, 1999 Q AZ145-001 <br /> SECOND DARTER 1999 <br /> GROUND-WATER MONITORING REPORT <br /> April 1 through June 30, 1999 <br /> Manna Pro Facility <br />' Stockton, California <br /> 1.0 INTRODUCTION <br />' This Second Quarter 1999 Ground-Water Monitoring Report is submitted on behalf of Manna <br /> Pro Corporation ("Manna Pro") for the facility at 4004 South El Dorado Street in Stockton, <br />' California ("the Site",Figures 1 and 2) This report presents the results of ground-water <br /> monitoring performed at the Site for the period of April I through June 30, 1999 This report <br /> also contains a technical status summary of the work completed at the Site during the quarterly <br />' period and work anticipated to be performed during July through September, 1999 <br /> 2.0 DESCRIPTION OF GROUND-WATER MONITORING PROGRAM <br />' The ground-water monitoring program at the Site consists of the following activities <br /> o Quarterly collection of ground-water level measurements from monitoring wells <br /> o Quarterly collection and laboratory analysis of ground-water samples from monitoring wells, <br /> in accordance with the monitoring schedule in Table 1 <br /> C Quarterly submittal of ground-water momtonng reports <br /> 3.0 GROUND-WATER MONITORING RESULTS <br /> 3.1 Ground-Water Elevations and Flow Direction <br />' Water-level measurements and calculated ground-water elevations were collected from <br /> monitoring wells at the Site on June 15, 1999 and are summarized in Table 2 Ground-water <br /> elevations from Site morutoring wells were used to construct potentwmetnc contours for shallow- <br /> zone sediments A water table elevation contour map for the shallow ground-water zone is <br /> illustrated in Figure 3 <br />' Ground-water level data indicate the depth to ground water measured in on-site wells on June 15, <br /> 1999 vaned between 24 89- and 27 14-feet below grade The ground-water level at well MW-2 <br />' on June 15 was essentially unchanged from the previous quarterly monitoring event in February <br /> 1999 During the period between October 1992 and June 1999, the depth to ground water vaned <br /> between 43 12 feet and 25 49 feet, respectively, at well MW-2 Based upon these data, it appears <br />' that water levels at the Site have risen approximately 17 6 feet during the period between October <br /> . 1992 and June 1999 <br /> 1 <br />