1MG SCLA Reclaimed Water Reservoir 2

The Project consists of constructing a new 1-million-gallon (MG) prestressed concrete circular reclaimed water reservoir at Southern California Logistics Airport (SCLA), located east of Westwinds Road and south of Montana Street (APN 0459-211-16) within the City of Victorville. The new reservoir will replace the existing 600,000-gallon in-ground rubber-lined pond used for reclaimed water storage. Because the pond is open to the atmosphere, it is susceptible to algae growth and debris accumulation, making it difficult to maintain water quality. The pond also experiences significant evaporation losses in this desert environment. Upon completion of the new reservoir, the existing pond and associated pumps, onsite piping, valves, and appurtenances will be decommissioned, removed, backfilled as necessary, and abandoned, thereby improving system reliability, operational efficiency, and overall water quality. The Project includes approximately 350 linear feet of onsite piping; approximately 1,380 linear feet of potable water main extension from George Boulevard and South Carolina Avenue to the project site; and construction of a new pump station. The pump station will include a prefabricated steel building to be furnished, fabricated, and delivered by the Contractor; installation of pumps, motors, valves, controls, instrumentation, mechanical and electrical systems; and a new electrical service. The reservoir will be supplied by existing 24-inch and 16-inch recycled water mains and will convey recycled water through the proposed pump station to the adjacent elevated tank serving the City's recycled water distribution system. A proposed 12-inch potable water main extension will serve as a backup supply to the reservoir. The prestressed concrete reservoir will have an approximate diameter of 75 feet and a height of approximately 34 feet, with approximately 20 feet below existing grade. The reservoir shall be delivered under a unified design-build responsibility by a single qualified specialty subcontractor experienced in both the design and construction of prestressed concrete reservoirs. The Contractor shall retain this firm as a specialty subcontractor responsible for both design and construction of the reservoir. Separate design and construction responsibilities will not be permitted to minimize coordination risks and potential liability disputes. The Contractor shall be responsible for all site preparation, excavation, foundations, underground piping connections, coordination with the design-build subcontractor, scheduling, shop drawing preparation and review, and overall construction management necessary to provide a complete and operational reservoir system. The total area of disturbance, including trenching, footings, and construction staging, will be approximately 85 feet in diameter. A retaining wall between approximately 6 and 8 feet in height may be constructed for slope stability, if required. Overflow connections from the proposed reservoir and existing elevated tank will be rerouted to the adjacent sanitary sewer system via a proposed drainage structure. All associated site work, including trenching, excavation, backfill, grading, fencing, security improvements, and appurtenant facilities necessary to provide a complete and operational reclaimed water storage facility, are included in the Work. The Work shall also include all required environmental tasks, including preconstruction surveys, construction monitoring, environmental compliance activities, and the excavation, handling, transportation, and delivery of pesticide-contaminated soil to an approved local soil recycling facility for recycling.