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1 <br /> ER- -� AKSMA <br /> 11Z Working to Restore Nature <br />' 42501 A9brae Street,Suite 100 i I PL 1: 06 <br /> Fremont,Cahfomia 94538 <br /> Phone (510)440-3300 <br />' FAX (510)651-2233 <br /> November 3, 1994 <br />' Mr Michael Karvelot <br /> Director of Environmental Affairs <br /> Quik Stop Markets, Inc. <br />' 4567 Enterprise Street <br /> Fremont, California 94538 <br />' Subject. Letter Report, Quarterly Groundwater Monitoring, Third Quarter 1994 <br /> Quik Stop Market No 132 <br /> 3555 West Hammer Lane, Stockton, California. <br />' Mr Karvelot• <br /> RESNA Industries Inc (RESNA), is pleased to present this report of the results of the <br /> quarterly groundwater monitoring, for third quarter 1994 conducted at the subject site located <br />' in Stockton, San Joaquin County, California (Plate 1) The site plan (Plate 2) shows the <br /> location of the station building, adjacent streets, monitoring wells, and other site-specific <br /> features Background information on the site was included in Appendix A of our quarterly <br />' groundwater monitoring report for September 1993 (RESNA, December 1, 1993) <br /> The monitoring wells are sampled quarterly to monitor two shallow groundwater aquifers <br />' underlying the site The program objectives are listed below <br /> • Measure depth of groundwater <br />' Sample and analyze groundwater samples for selected petroleum hydrocarbons <br /> • Construct groundwater elevation contour maps within the study area boundaries <br /> • Compare current and past data <br />' The existence d degree of petroleum hydrocarbons in the groundwater underlying the site is <br />' evaluated by (1) the presence or absence of free-floating product, and (2) laboratory analyses <br /> of groundwater samples to evaluate concentrations of total purgeable petroleum hydrocarbons <br /> as gasoline (TPHg), and benzene, toluene, ethylbenzene, and total xylenes (BTEX) <br /> F7132 941Q34 <br /> 1 <br />