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KLE/NFELOER <br /> Brlghfhopl<.fllgM1t Solufloni. <br /> • 4. ACTIVITIES CONDUCTED <br /> Kleinfelder and Norman's Nursery personnel have conducted groundwater and surface <br /> water sampling and monitoring in an effort to comply with the RWQCB Monitoring and <br /> Reporting Program (MRP) No. 97-811 and Kleinfelder's revised workplan dated <br /> October 31, 1997. Three deep monitoring wells (DP-1, DP-2, and DP-3) and two <br /> shallow monitoring wells (MW-2 and MW-5) located on the Norman's property were <br /> monitored during the first and second quarters of 2012. In an attempt to comply with the <br /> above-referenced MRP, surface water monitoring (e.g., rainfall, estimated runoff, etc.) <br /> was conducted by Norman's personnel on approximately a daily basis, while chemical <br /> analysis of surface water samples was conducted on approximately a weekly basis. <br /> 4.1 MEASUREMENT OF GROUNDWATER LEVELS <br /> In order to assess the groundwater gradient at the time of sampling, water level <br /> measurements were made in each of the monitoring wells at the beginning of the <br /> isampling round, prior to the purging and sampling of the wells. The depth-to-water was <br /> measured in each well according to the protocol described in Appendix A, Section A-4. <br /> The depth-to-water measurements were converted to relative groundwater elevations <br /> with respect to mean sea level or a local benchmark by subtracting them from the <br /> surveyed casing elevations. <br /> The depth-to-water measurements and groundwater elevations for both the shallow and <br /> deep monitoring wells at Norman's Nursery are summarized on Table 7. <br /> 4.2 COLLECTION OF GROUNDWATER SAMPLES <br /> Kleinfelder collected groundwater samples from the shallow aquifer monitoring wells, <br /> MW-2 and MW-5, on March 13, 2012 and June 12, 2012. Kleinfelder also collected a <br /> groundwater sample from each of the three deep monitoring wells (DP-1, DP-2, and <br /> DP-3) during the quarterly sampling events. <br /> The wells were purged and sampled as described in Appendix A, Section A-4.2. <br /> • Copies of the monitoring well purging and sampling logs are included in Appendix B. <br /> 117226.E02/ST012R0696 Page 18 of 43 September 14, 2012 <br /> Copyright 2012 Kleinfelder <br />