NEX GAS STATION

The NEX Gas Station is located in the Jackson Park Housing Complex and Naval Hospital Bremerton Site, in Bremerton, WA. Plateau Geoscience Group provided field support to Tetra Tech EC, Inc., for their implementation of the Data Gaps Investigation Plan, Operable Unit 1. Plateau assisted in logging soil borings and interpretation of glacial stratigraphy, water-bearing zones, and presence of petroleum hydrocarbon contaminants. Past leaks at the NEX Gas Station resulted in contamination of soil and groundwater with a plume of dissolved petroleum hydrocarbons potential seeping into Ostrich Bay some 400 feet east of the site. Plateau performed logging of eight soil borings ranging from about 20 to 100 feet in depth, and prepared a written summary of materials encountered and observations made regarding presence of non-aqueous phase liquid in each boring. The data gaps investigation was to confirm the lateral extent of groundwater impacts adjacent to and downgradient from the NEX Gas Station pump island.