USGS Washington Water Science Center
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In May 2006 the U.S. Geological Survey (USGS) Washington Water Science Center (WAWSC), in cooperation with Pierce Conservation District (PCD) and the Washington State Department of Ecology began a project to characterize the groundwater flow system in the Chambers-Clover Creek Watershed (CCCW), including the establishment and operation of a 137 well monthly (March 2007-September 2008) groundwater monitoring network (Justin and others, 2009; Savoca and others, 2010). This and other information were integrated into a numerical groundwater-flow model of the CCCW that is currently under development. In 2009, PCD and local stake holders requested WAWSC participation in the re-activation of selected wells in the CCCW monthly groundwater monitoring network to extent the period of record through 2014 and provide additional data for future refinement of the transient model.
The objective of this study is the re-activation of monthly groundwater-level measurements at 29 wells located on Joint Base Lewis-McChord, a Department of Defense facility in the CCCW. These wells will be measured by WAWSC personnel. Earlier this year (2010) the WAWSC provided PCD and local stake holder staff with: 1) guidance on monitoring well selection; 2) field methods training; and 3) QA/QC and data archiving training, to enable PCD and local stake holders to measure water levels at 50 re-activated residential monitoring wells in the study area. Of the 137 original monitoring wells, a total of 79 wells have been re-activated and will be measured monthly during the study period (2010-2014) by WAWSC, PCD, and local stake holders.