Categorical Exclusion Determination
Office of NEPA Policy and Compliance
June 7, 2018
minute read time
Work Order # 1615313 was used to evaluate the need for back pressure valve PCV-711 at the Western Sector Treatment System. It was determined that the back pressure valve was not needed in this application. M-FCR-M-00137 was prepared to permanently remove the back pressure valve from the system. Removing the back pressure valve does not affect the treatment of water at Western Sector Treatment System.