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Data provided with taus Report <br /> Regional Site Location Ma e 1 <br /> Map ) <br /> I Topographic Map of Site(Figure 2) <br /> Site Activity Map(Figure 3) <br /> Map Depicting Groundwater Flow Direction(Figure 4) <br />' Hydrograph and TPH-Gas and Benzene Concentrations for PT-MW-1 (Figure 5) <br /> Monitoring Well Sounding Data(Table 1) <br /> E Summary of Monitoring Well Sounding Data(Table 2) <br /> Summary of Water Sample Analytical Results(Table 3) <br /> Summary of Individual Monitoring Well Water Sample Results(Table 4) <br /> Appendix I- Groundwater Monitoring Procedures <br /> Appendix 2- Groundwater Monitoring Well Data Logs <br />' Appendix 3- Analytical Laboratory Reports for Samples Collected from the Wells <br /> I2.0 GROUNDWATER MONITORING AND SAMPLING <br /> 221 Groundwater Monitoring <br /> Groundwater monitoring wells for the 521 North Cherokee Lane (former Parmar Texaco site)were <br />' monitored on April 7, 2004 The locations of the monitoring well are depicted on both Figures 3 and 4 <br /> All well monitoring and sampling was conducted in accordance with the monitoring procedures outlined in <br /> the attached Appendix 1 and by verbal directives issued by PHSEHD The wells were initially inspected <br /> for integrity and general maintenance condition with the findings reported on the Monitoring Well Data <br /> Sheets presented in Appendix 2 The wells were then probed for depth to the groundwater surface and <br /> 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 their <br /> I 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 visually inspect 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 MW-1, 2, and 3 These wells had <br /> a slight free-product layer at least 0 005 foot thick All other wells had no reported petroleum hydrocarbon <br /> 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 was 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 I and 2 Once the groundwater <br /> parameters were stabilized a water sample was collected <br />' Mamlb\EnvuonmmtailPamurTenco\ReportM33104QMRwpd 2 <br />