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' After the grout has cured overnight, the well head will be finished in a manner substantially identical to existing well MW3. The well head will consist of a flush mount well-head vault set in a 2-foot square concrete pad at the surface and the pad will be ' finished to slope away from the center. The well head will be secured with a water tight well head cap and a padlock. A reference mark will be placed on top of the well casing, and the horizontal location and elevation of the reference mark and ground level will be ' determined by professional survey. It is anticipated that the reference elevation for the professional survey will be NGVD 29 and the horizontal coordinates will be based on the California Coordinate System 83. Documentation and Reporting ' A field geologist under the supervision of a California Professional Geologist shall be on- site during all drilling and well construction activities in order to log and describe soil samples consistent with the Unified Soils Classification System, observe drilling ' procedures,watch for indications of groundwater during drilling, direct well construction activities, record materials used, and act as safety officer. ' The field geologist will create a well completion and boring log for each well or boring. The log will document the as-built well construction features and the subsurface conditions encountered during drilling. A report of activities will be compiled based largely upon the on-site geologist's boring logs and the surveyor's report, and it shall be submitted to Board Staff. The report shall include, but not be limited to,boring logs and well construction logs for B5, B6, and B7/MW5, results of laboratory analysis of the grab ' groundwater sample at MW5, a log documenting well abandonment of MW3, and results of professional survey at MW5. No deviations from this work plan are anticipated. However, should field conditions warrant modification of well construction or sampling ' plans identified in this document, then the deviations shall be documented in the report of activities. The proposed schedule for this work is that it is to be completed within 60 days after receiving approval of the workplan. If approval of the plan is received prior to July 1, 2005, then the Well Installation Report will be completed by August 31, 2005. June 21,2005 Page 5