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DER <br /> 'right' 9tl9M1t People.Right So/Wmu <br /> 3. ACTIVITIES CONDUCTED <br /> Three existing on-site monitoring wells/piezometers in the plant area (P-1, P-2, and P- <br /> 3), three on-site monitoring wells in the McKinley Avenue Area south of the plant (W-1, <br /> ' W-4 and W-5), and the six monitoring wells in the Louise Avenue Area located <br /> southeast of the plant (L-1, L-2, L-3, L-4, L-5, and L-6) were sounded for depth to <br /> groundwater during the quarterly monitoring event. Groundwater samples were <br /> subsequently collected, and submitted for chemical analysis, from the monitoring wells <br /> ' located in the McKinley Avenue and Louise Avenue Areas. <br /> ' 3.1 SECOND QUARTER 2012 FIELD ACTIVITIES CONDUCTED <br /> 3.1.1 Measurement of Groundwater Levels <br /> Water level measurements were made in each monitoring well and piezometer at the <br /> beginning of the sampling round prior to purging and sampling the wells. The depth-to- <br /> water was measured in each well according to the protocol described in Appendix A, <br /> Section A-4. The depth-to-water measurements were converted to groundwater <br /> elevations with respect to mean sea level or a local benchmark by subtracting them <br /> from the surveyed top of casing elevations. <br /> 3.1.2 Collection of Groundwater Samples <br /> On May 22, 2012, nine groundwater samples were collected. The wells were purged <br /> and sampled using disposable bailers as described in Appendix A, Section A-3.2. <br /> During the purging of the wells the groundwater was monitored for pH, specific <br /> 1 conductivity, turbidity, temperature and color. Copies of the monitoring well purging and <br /> sampling log are included in Appendix B. The water purged from the wells was not <br /> contained. <br /> 101486.5/ST012R0588 Page 7 of 14 July 31, 2012 <br /> Copyright 2012 Kleinfelder <br />