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21 <br /> i <br /> Ryan, Inc (G-R) On February 1, 1999, field personnel developed two wells (MW-10 and <br /> NP-1) and monitored (during development) one well (MW-2) On February 4, 1999, field <br /> personnel monitored and sampled eleven wells(MW-1 through MW-10, and NP-1)at the Site <br /> ' Static groundwater levels were measured and all wells were checked for thep resence <br /> ' of separate-phase hydrocarbons Separate-phase hydrocarbons were not present in the wells <br /> Static water level data and groundwater elevations are summarized in Table 1 of Appendix E <br /> ' Dissolved oxygen concentrations are summarized in Table 6 of Appendix E A potentrometnc <br /> map is included as Figure I of Appendix E <br /> 1 <br /> The direction of groundwater flow at the Site is generally to the northeast under a <br /> ' gradient of 001 to 002 ft/ft Vertical gradient calculated at the Site using water elevations <br /> from monitoring wells MW-2 and NP-1 is 0055 ft/ft downward <br /> Groundwater samples were collected from the monitoring wells as specified by G-R <br /> Standard Operating Procedure - Groundwater Sampling (also attached in Appendix E) The <br /> field data sheets are also attached in Appendix E Analytical results are summarized in Tables 1 <br /> ' through 4 of Appendix E A concentration map illustrating the distribution of TPHg and <br /> benzene is included as Figure 2 of Appendix E The chain of custody document and laboratory <br /> analytical reports are also attached in Appendix E <br />