Mariana Marcos-Hernandez and lab-mate Alireza Farsad reached out to a community in Florence, AZ, where reports from the Arizona Department of Environmental Quality (AZDEQ) indicated arsenic levels in well water above the MCL of 10 ppb. In one residence, they installed a titanium-modified point of use (POU) system under the bathroom sink that will remove arsenic from the water over the coming months. 
Using a flow totalizer they will measure how much water has passed through the filter to calculate and monitor when the filter saturates. Upon saturation of the filter they'll demonstrate to the community the amount of arsenic that was removed. This is the first time the team is testing this modified POU system outside the laboratory to obtain realistic operational parameters. Mariana is a MEMCARE-SRC Project 4 post-doc working in Paul Westerhoff's lab at Arizona State University.
