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First-Quarter 1992 Groundwater Monitoring Report A �—AWWAW—= <br /> Tri-Valley Growers, Thornton, California <br /> ' <br /> April 8, 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 /> Q <br /> ' Sharon A Young <br /> Microbiologist <br /> 1 <br /> ' Gregory P Stahl <br /> CA Registered Geologist No 5023 <br /> ATTACHMENTS Figure 1 Site Location Map <br /> P <br /> Figure 2 Groundwater Gradient Map (01109192) <br /> ' Figure 3 Groundwater Gradient Map (02104192) <br /> Figure 4 Groundwater Gradient Map (03112192) <br /> Figure 5 Groundwater Gradient Map (03124192) <br /> ' Figure 6 Influent BTEX Concentrations vs Time <br /> Figure 7 Influent TPHG Concentrations vs Time <br /> Table 1 Summary of Groundwater Monitoring <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 Qui3ano, Tn-Valley Growers <br /> QM032792 SAY 3 <br /> 1 <br />