When the Sutton Brook superfund remediation site in Tewksbury, Massachusetts needed reliable level measurement of their chemical feed systems, they turned to Flowline. For decades, the landfill served as a hazardous waste dump, and was filled with chemical and metal contaminants that had leached into the groundwater. During the clean-up project, chemical feed systems were installed in and around the site for water remediation and odor control. The operators had experienced corrosion and coating problems with their previous float level switches.