The City is proposing modifications to the previously approved recycled water distribution pipeline alignment as analyzed in the Recycled Water Distribution System, Southwest Quadrant Tiered Mitigated Negative Declaration (MND). The adopted Tiered MND analyzed approximately 22 miles of pipeline throughout the southwest portion of the City. The total miles of pipeline were reduced by approximately 1,600 feet (.30 miles) as part of the refinements analyzed and approved in Addendum #1. Addendum #2 evaluated the addition of approximately 4 miles of pipeline. As a result, a total of approximately 131,137 feet or 24.83miles of pipeline has been approved and evaluated in the Tiered MND, as amended.
However, over the course of construction of the recycled water distribution pipelines, some planned portions of the segments were not constructed and refinements to the measurements of the constructed segments were made. As a result, the total length of constructed and proposed pipeline through Addendum #2 is 113,139 linear feet or 21.43 miles.
The proposed refinement would add approximately 5,802 linear feet (or 1.10 miles) of new pipeline for a total of 118,941 feet or 22.53 miles of pipeline, which is approximately a 9.3 percent decrease from the currently approved alignment. The following describes the changes in detail.
The additional pipeline would connect to the previously approved alignment at the intersection of A Street and Inyo Street. From there it would run southeast along A Street for approximately 461 feet before turning southwest at the intersection of Mono Street and A Street. The alignment would run along Mono Street for approximately 1,194 feet before reaching the end of Mono Street. The alignment would then continue through the intersection of East California Avenue and Pottle Avenue, running south along Pottle Avenue which immediately turns into South Martin Luther King Jr. Boulevard, for a total of approximately 3,465 feet. In addition, the alignment would turn west along Church Avenue and extend for approximately 682 feet from the intersection of South Martin Luther King Jr. Boulevard and Church Avenue.
Installation of the pipelines along the refined alignments would be consistent with the construction considerations described in Chapter 1, Project Description, pages 1-8 through 1-11of the Tiered MND. This includes similar construction equipment, methods, and staging areas. The additional pipeline would be installed in existing street rights-of-way. As such, construction impacts would be sufficiently covered with the previously approved CEQA documents.