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KLE/NFELDER <br /> 4. ACTIVITIES CONDUCTED <br /> Kleinfelder and Norman's Nursery personnel have conducted groundwater and surface water <br /> sampling and monitoring in an effort to comply with the RWQCB Monitoring and Reporting <br /> Program (MRP) No. 97-811 and Kleinfelder's revised workplan dated October 31 , 1997 . Three <br /> deep monitoring wells (DP-1 , DP-2, and DP-3) and two shallow monitoring wells (MW-2 and <br /> MW-5) located on the Norman 's property were monitored during the fourth quarter of 2012 . In <br /> an attempt to comply with the above-referenced MRP, surface water monitoring (e .g . , rainfall , <br /> estimated runoff, etc. ) was conducted by Norman 's personnel on approximately a daily basis , <br /> while chemical analysis of surface water samples was conducted on approximately a weekly <br /> 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 sampling <br /> round , prior to the purging and sampling of the wells . The depth-to-water was measured in <br /> each well according to the protocol described in Appendix A, Section A-4. The depth-to-water <br /> measurements were converted to relative groundwater elevations with respect to mean sea <br /> level or a local benchmark by subtracting them from the surveyed casing elevations. <br /> The depth-to-water measurements and groundwater elevations for both the shallow and deep <br /> 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, MW-2 <br /> and MW-5 , and the three deep monitoring wells (DP-1 , DP-2, and DP-3) on December 11 , <br /> 2012 . <br /> The wells were purged and sampled as described in Appendix A, Section A-4. 2. Copies of the <br /> monitoring well purging and sampling logs are included in Appendix B. <br /> In accordance with the scope of work approved by the RWQCB , the water purged from the <br /> wells was not contained . <br /> - 117226 .E02/ST013R0176 Page 18 of 40 January 31 , 2013 <br /> Copyright 2013 Kleinfelder <br />