Purolite's complete line of Purolite® ion exchange resins for perchlorate keep water safe and clean. Purolite has highly effective solutions to bring levels of perchlorate to zero detect. Although the US EPA has not yet set a MCL for Perchlorate, this chemical meets Safe Drinking Water Act criteria for regulation as a contaminant, and a MCL level will be set in the near future. Various states have MCLs and MCLGs to meet, as low as 1 µg/L.