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I <br /> i <br />'6 <br /> I <br /> First-Qnarier 1992 Groundwater Monitoring Report <br /> Tri-Valley Growers,Thornton,California <br /> April S, 1992 <br /> W2102 <br /> If you have any questions regarding this project, please contact Bill Channell at our Escalon <br /> office(209) 838-3507. <br /> Respectfully, <br /> •• RESNA Industries <br /> Sharon A. Young <br /> Microbiologist <br /> AY / — -` 7 <br /> Gregory P. Stahl <br /> �. CA Registered Geologist No. 5023 <br /> 11 <br /> ATTACHMENTS Figure 1: Site Location Map <br /> Figure 2: Groundwater Gradient Map (01/09/92) <br /> Figure 3: Groundwater Gradient Map (02/04/92) <br /> Figure 4: Groundwater Gradient Map(03/12192) <br /> _. Figure 5: Groundwater Gradient Map (03/24/92) <br /> Figure 6: Influent BTEX Concentrations vs. Time <br /> Figure 7: Influent TPHG Concentrations vs. Time <br /> Table 1: Summary of Groundwater Monitoring a <br /> Table 2: Summary of Lab Analysis of Water Samples <br /> ` Attachment 1: Well Purge Logs <br /> Attachment 2: Laboratory Data Sheets and Chain-of- <br /> Custody Documentation <br /> PC: Beth Thayer, CA RWQCB <br /> Juan Quijano, Tri-Valley Growers <br /> cs <br /> k <br /> QW32792.SAY 3 <br /> s.. <br /> i� <br />