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Kennedy/Jenks Consultants will be pre-developed after the filter pack is installed and prior to the bentonite seal being installed. A two-to three-foot layer of protective bentonite clay pellets will be placed to minimize downward migration of the grout seal into the filter pack. The cement grout will be placed using a tremmie pipe from the top of the bentonite pellet layer to ground surface. The well will be completed with a flush, traffic-rated well enclosure to control access to the well opening. A schematic diagram of well construction details is shown on Figure 3. 4.2.2 Development After waiting a minimum of 48 hours to allow curing of the grout and concrete, the monitoring well will be developed by surging and pumping until the water removed from the well is sediment-free, no further improvement in water quality is observed, or 10 casing volumes have been purged. Field parameters of pH, temperature, and conductivity will be recorded. The well will be allowed to recover for a minimum of 72 hours following well development, prior to monitoring and sampling. 4.2.3 Surveying The locations and well casing elevations of the new monitoring well will be horizontally and vertically surveyed by a licensed land surveyor. The ground surface and top of well casing elevation will be surveyed to the nearest 0.01 foot relative to mean sea level. The ground surface and top of PVC casing will be surveyed to the National Geodetic Vertical Datum (NGVD 1983), relative to nearest benchmark at the Site. Horizontal locations of the new well will also be surveyed relative to the California Coordinate system to 0.1 foot precision. 4.2.4 Residuals Management Residuals generated as a result of these activities are anticipated to include soil cuttings from the drilling activities, decontamination water resulting from the drilling activities and development of the monitoring well, and purge water from sampling the new monitoring well. The soil cuttings will be contained at the well site and transported to the Delicato facility and distributed on the ground. Water residuals will be distributed on the ground in a manner that does not affect work site safety. 4.3 Groundwater Sampling Initial sampling of groundwater will be conducted from the new monitoring well no sooner than 72 hours after development. Groundwater sampling will be performed in accordance with the SOG for Groundwater Sampling (Appendix A). Groundwater will be purged from the monitoring well prior to sampling to acquire samples representative of aquifer conditions. The field parameters pH, temperature, and specific conductance will be monitored during purging to document stabilization. The parameters will be measured in accordance with Kennedy/Jenks' SOG for Field Measurement of pH, Temperature, and Specific Conductance (Appendix A). Purge water will be distributed on the ground at the well site. Monitoring Well Installation Work Plan Page 5 Delicato Family Vineyards, Manteca, California gYs-gmW%dmnYob`A70765001.0g_EeliceloMory taw instals pinVedt