The Consultant shall: 1. Document all decommissioned and/or redeveloped wells; generate well construction diagrams and boring logs for all new wells and decommissioned wells. 2. Utilize information obtained from construction to verify or update the conceptual site model and refine the geologic cross sections. 3. Update the site-wide hydrologic water balance, conduct local and regional groundwater flow modeling. 4. Analyze site geologic and hydrogeologic data. Consider relevant conditions presented in the CHRLF Site-Wide Hydrogeologic Report (December 2013) and update existing hydrostratigraphic interpretations as appropriate with the new lithologic data. Prepare a draft and final hydrologic water balance memo. 5. Present geologic interpretations on geologic cross sections. Hydrogeologic information (water levels, presence of perched zones, saturated and unsaturated zones, and specific conductance values) measured during drilling shall be incorporated into hydrostratigraphic cross sections. Updated geologic cross sections, maps, tables, and figures to be included in the Site-Wide Hydrogeologic Report. 6. Document final decommissioning logs, well construction diagrams, as-builts, and boring logs. 7. Evaluate groundwater occurrence in the perched zones and in the regional aquifer. 8. Prepare potentiometric surface maps to incorporate new monitoring wells and relevant existing monitoring wells and include in the Site-Wide Hydrogeologic Report. Vertical and horizontal flow paths shall be evaluated with respect to the new data. 9. Update groundwater elevation graphs; evaluate water level trends.
