East Weaver Water Treatment Plant Improvements Project

The East Weaver Water Treatment Plant Improvements Project involves comprehensive infrastructure upgrades to the Weaverville Community Services District’s water system in Weaverville, California, with a focus on enhancing capacity, reliability, and environmental compliance. Core components include the construction of a new water treatment building and a 1-million-gallon concrete water storage tank, alongside the installation of new waterlines and combined power and communications conduit. The project requires the enlargement of existing earthen backwash ponds and the demolition of the current concrete sedimentation basin and adjacent chemical room. Aggregate base will be placed on newly constructed access roads, around the treatment facility, and on unpaved sections of East Weaver Creek Road. Work extends to federal land within the National Forest, where a decommissioned 0.4 million-gallon water tank and associated treatment facilities near the East Weaver Campground will be demolished, with the site graded and prepared for a parking area adjacent to the East Weaver Creek Trailhead. Underground conduit will be installed, and overhead power lines will be upgraded in this area. A new pressure reducing valve station will be built northwest of the intersection of East Weaver Creek Road and Highway 3, and the Trinity Public Utilities District will replace several power poles along East Weaver Creek Road. The project adheres to strict technical and environmental standards, with all construction materials and methods required to meet AASHTO M294 and F-405 for HDPE piping, ASTM D-1557 for soil compaction at 95% maximum density, and California Class 520-C-2500 specifications for concrete. Structural integrity is ensured through thrust blocks at pipe bends and control joints in concrete sidewalks. Environmental compliance is governed by CEQA, with a CalEEMod 2022 emissions report and biological resources documentation addressing impacts on species such as the Northern Spotted Owl. Hazardous materials handling follows DOT, RCRA, and California Code of Regulations Title 22 standards, with packaging and labeling requirements aligned with transport safety mandates. While the procurement is classified as a forecast with no formal solicitation number or contract value provided, performance timelines are defined with demolition scheduled for May 2027 and building construction extending through June 2028. Inspection and acceptance are to occur on-site at project locations, overseen by the Weaverville Community Services District, with no designated COR, COTR, or PCO identified. The area’s socioeconomic context, including a poverty rate of 62.2% and designation as