The Sumas-Blaine Aquifer was identified as one of the most severely contaminated aquifers in Washington. We have been conducting a long-term ambient groundwater monitoring program in this surficial aquifer since March 2009.
This study is designed to build on previous monitoring efforts to provide an annual assessment of the status of nitrate and related compounds in groundwater. Twenty-five wells are sampled annually for nitrate, chloride, and bromide. This project will continue as long as funding is available.
Environmental Information Management database Study ID: MRED001