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I <br />' Data Provided with this Report <br /> Regional Site Location Map(Figure 1) <br /> Topographic Map of Site(Figure 2) <br />' Site Activity Map (Figure 3) <br /> Map Depicting Groundwater Flow Direction(Figure 4) <br />' Hydrograph of Monitoring Well PT-MW 1 with Benzene and 1,2-DCA Concentrations(Figure 5) <br /> Monitoring Well Sounding Data (Table 1) <br /> Summary of Monitoring Well Sounding Data. (Table 2) �[�� (� \��f r END <br />' Summary of Water Sample Analytical Results(Table 3) LLMC f <br /> Summary of Individual Monitoring Well Water Sample Results(Table 4) hAAK ,t 0 ?"9 <br />' Appendix 1- Groundwater Monitoring Procedures ENVIRONMENT HEALI H <br /> Appendix 2- Groundwater Monitoring Well Data Logs pERMITISERVICES <br /> Appendix 3- Analytical Laboratory Reports for Samples Collected from the Wells <br /> 1 <br /> . 2.0 GROUNDWATER MONITORING AND SAMPLING <br />' 2.1 Groundwater Monitoring <br /> Groundwater monitoring wells for the 521 North Cherokee Lane (former Parmar Texaco site)were <br />' monitored on December 10, 2004 The locations of the monitoring well are depicted on both Figures 3 <br /> and 4 All well monitoring and sampling was conducted in accordance with the monitoring procedures <br /> outlined in the attached Appendix 1 and by verbal directives issued by PHSEHD The wells were initially <br /> inspected for integrity and general maintenance condition with the findings reported on the Monitoring Well <br /> Data Sheets presented in Appendix 2 The wells were then probed for depth to the groundwater surface <br /> and depth to bottom of each well <br /> Initially,the depth to water surface was measured by an electronic water level indicator that allowed <br /> measurement of depth to approximately 0 01 foot These water surface depths for each well were then <br />' recorded on the individual monitoring well data sheets contained in Appendix 2 After depth to water was <br /> determined, a clear, acrylic bailer was used to inspect visually an undisturbed sample from the top of the <br /> water column to determine if a product layer or sheen was present A pronounced sheen and product layer <br />' was visible on the tape and the bailers used to sample monitoring wells MW1, 2, and 3 These wells had a <br /> slight free-product layer of approximately 0 005 foot thickness All other wells had no reported petroleum <br /> hydrocarbon odor or sheen on the water surface <br /> The water level indicator was then used with a weight to measure the total depth of each monitoring well <br /> in order to determine the volume of water in each well casing volume These measurements and the <br /> calculated well casing volume for each well were recorded in Appendix 2 <br /> Each of the wells was then purged with a low-purge rate submersible electric water pump or hand bailed <br /> using a disposable bailer Groundwater electrical conductivity, pH and temperature were all recorded as <br /> each casing volume of water was removed from the wellbore Data was recorded on the Monitoring Well <br /> Data Sheets Groundwater monitoring results are tabulated in Tables 1 and 2 Once the groundwater <br /> parameters were stabilized a water sample was collected <br /> mam1D1Enunnmental\PamiarTexaoo\Repons1I23104QMRwN 2 <br />