Cucamonga Valley Water District has three production wells that jump from the Cucamonga Basin Aquifer into Reservoir 3A located at the southeast corner of 19th Street and Sapphire Avenue. These wells have a high concentration of nitrates and dbromochloropropane (DBCP) as a result of decades of agricultural usage in the area. These levels do not meet current public health standards are limiting water prodcution for the District. The installation of a package granular activated carbon (GAC) system would filter the water removing DBCP bringing the water back to within public health standard limits. This package treatment system could enable the District to increase water production by 2,600 AF. The process is commonly used throughout the industry and is an accepted practice approved by the State Department of Public Health.