Cucamonga Valley Water District has three production wells that pump from the Cucamonga Basin Aquifier into Reservoir 3A located at the southeast corner of 19th Street and Sapphire Avenue. These wells have a high concentration of nitrates and dibromochloropropane (DBCP) as a result of decades of agricultural usage in the area. These levels do no meet current public health standards are limiting water production 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.
Section 15301 exempts the minor alteration of existing public or private infrastructure or facilities. The package treatment system does not expand the use of existing facilities beyond their already present limits. Section 15303(d) of the State CEQA Guidelines allows for construction of new structures for water main, sewage, electrical, gas, and other utility extension. Based on these findings, the project is therefore exempt pursuant to Public Resources Code Section 21083 (b).
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