Analysis of Groundwater Response to Tidal Fluctuations, Operable Unit 1, Naval Base Kitsap, Keyport, Washington [open pdf - 2MB]
From the Introduction: "Naval Base Kitsap (NBK) Keyport is on a small peninsula in Kitsap County, Washington, in an inlet of Puget Sound called Liberty Bay. Chlorinated volatile organic compounds (VOCs) have affected groundwater beneath a former 9-acre landfill at Operable Unit 1 (OU 1) that was constructed in a marsh west of the narrow strip of land connecting the peninsula to the mainland. The landfill was the primary disposal area for domestic and industrial waste generated by NBK Keyport from the 1930s through 1973. Remediation efforts at OU 1 are ongoing, and a long-term groundwater monitoring program is in place. [...] This report describes the results of a tidal lag study at OU 1 that was done to better understand nearshore groundwater-seawater interactions, optimally schedule groundwater sampling times for different wells, and to inform a parallel groundwater modeling effort at the site."
Open-File Report 2019-1098
U.S. Geological Survey: https://www.usgs.gov/