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unwcEns oesc�ascw+5uu.uRS <br />' EPA Method 8020 as follows <br /> MW-2A-20' MW-3A-35' <br /> MW-2A-30' MW-3A-40' <br /> MW-2A-40' MW-3A-45' <br /> MW-2A-45' <br /> Field screening results are presented on borehole logs in Appendix B <br /> Monitor wells were installed and developed as described in Appendix A The borehole and well <br /> construction logs are presented in Appendix B <br /> The location of replacement well MW-3A was moved closer to the original MW-3 well because <br /> the proposed location was over a utility vault beneath the sidewalk <br /> 3.3 GROUNDWATER MONITORING SUMMARY <br /> w replacement monitor wells MW-2A and MW-3A) were surveyed for vertical <br /> The two ne p ( <br /> Selevation relative to mean sea level and sampled on 26 July 1995 For a detailed discussion of <br /> groundwater sampling techniques, refer to the Field Report presented in Appendix A <br />' The replacement monitor wells were sampled approximately 2 weeks after the wells were <br /> developed, to allow the aquifer to stabilize. Groundwater samples were collected from all seven <br /> monitor wells surrounding the HSA building at this time (MW-2A, MW-3A, MW-4, MW-5, <br /> MW-6, MW-7, and MW-8) One blind duplicate and one field decontamination check sample <br />' were also taken as quality control measures. All nine water samples were submitted for BTEX <br /> analysis by EPA Method 8020 and TPH-g analysis by EPA Method 8015m <br />' 4.0 INVESTIGATION RESULTS SUMMARY <br /> iData generated by the two investigation phases included depth to groundwater measurements and <br /> the analytical results of the soil and groundwater sampling All tables referenced in the <br /> following section are presented at the end of the report narrative <br /> i <br /> L\M0jECrSISANI0(,VU PHASE III 5 29 Mpg 1445 <br />