Construction and installation summary for fiscal year 1992 of the hydraulic head monitoring stations at Oak Ridge National Laboratory, Oak Ridge, Tennessee

Abstract

During FY 1992, as part of the Hydraulic Head Monitoring Station (HHMS) Project, three multiport wells (HHMS 12, 13, and 14) were constructed along or near the boundaries of Waste Area Grouping (WAG) 2 at Haw Ridge water gap. The purpose of this report is to document well construction and multiport component installation activities. The hydraulic head monitoring stations (HHMS) are well clusters and single multiport wells that provide data required for evaluation of the transition between shallow and deep groundwater systems and of the nature of these systems. This information is used for required characterization of the hydrologic framework as dictated by state and federal regulatory agencies. Groundwater contaminants may move laterally across WAG boundaries or offsite; they may also move in a vertical direction. Because the HHMS Project was designed to address otential contamination problems, the project provides a means for defining the bounds of the uppermost aquifer; identifying potential pathways for offsite contamination for shallow; intermediate, and deep groundwater flow; and evaluating the capacity for contaminant transport in intermediate and deep groundwater flow systems.