Additional Informational Needs Sample Clauses

Additional Informational Needs. VA has identified additional areas where more data needs to be collected to verify past assumptions in contaminant fate and transport during the OU - 2 RI. They are as follows:  Determine if upgrades have been undertaken for the Sunnyside Avenue sewer and how they might affect PCE migration along the city sewer pathway around Red Butte Creek.  Determine the pathway of the Red Butte Creek diversion from the Creek to the reservoir at Mt. Olivet, its changes over time and its influences on groundwater movement and possibly the Plume.  Gather additional background information on historic land uses around the VAMC that might affect groundwater quality.  Gather additional information on the background groundwater composition and influence of the Wasatch Front recharge on groundwater flow paths.  Evaluate flow paths developed prior to the Salt Lake City-Public Supply Well No. 18 shut down in 2004 and its impact on the PCE contaminated groundwater distribution.  Evaluate the potential influence on contaminated groundwater distribution due to past and future pumping from University of Utah and Mt. Olivet irrigation ▇▇▇▇▇.  Conduct additional assessment of VAMC Building 7 and the sewer line through Sunnyside Park to locate the source area of PCE disposal or releases.  Determine the influence of faults on groundwater flow and groundwater quality in the vicinity of Public Supply Well No. 18 and the East Side Springs neighborhood.  Quantify irrigation inputs to the aquifer in the Plume area. These areas of investigation will be included in the OU - 2 RI work. VA plans to conduct OU - 2 RI in phases and scoping for phase 2 will be based on the results of phase 1. Tasks for the initial phase include: 1. Two monitoring well transects in the ESS area to access the groundwater table and determine flow gradients across the two projected fault traces. 2. Six deep ▇▇▇▇▇ in the area surrounding the VAMC. 3. Slug tests on all new and existing MWs. 4. Perform a 72-hr. pump test on SLC-18, at a minimum. 5. Geophysical and geotechnical logging of the new monitoring ▇▇▇▇▇. 6. Historical records search. 7. OU-2 RIWP with SAP/QAPP and HSP per the NCP and EPA guidance. 8. Revise the CSM (Conceptual Site Model). 9. Conduct GIS analyses to supplement GWM parameters development. 10. Prepare a GWM QAPP 11. Develop and maintain a Project Database to VA specifications. 12. Conduct Public Meetings as needed.