Mossbrae Springs Improvements Project

The Mossbrae Springs Improvements Project in Dunsmuir, California, is a two-phase infrastructure initiative aimed at enhancing the City’s primary water collection system, as outlined in the 2015 Master Water Plan. Phase 1 focuses on upgrading emergency chlorination capabilities by installing new equipment and constructing a dedicated chlorination vault at the Springs site, along with improvements to the existing SCADA system at the North Dunsmuir Tank, including replacement of the antenna and modifications to the control panel. Additional work includes adding a four-inch thick gravel layer along the access pathway to improve maintenance and emergency access. Phase 2 encompasses major civil upgrades, including replacing two parallel 12-inch steel water pipes with a single 18-inch steel pipe, installing isolation valves, sample taps, and overflow lines tied to existing drainage, replacing steel doors on Spring 2 tunnels, demolishing the weir building and substituting it with a concrete retaining wall and a flowmeter vault, replacing culverts and adding a new drain box, and constructing concrete enclosures around all five existing spring boxes while integrating them with the new mainline via cut-throughs. The project explicitly excludes the permanently installed chlorination system at the Castle Rock Water Bottling facility, focusing all emergency systems on-site at the Springs. All work is designed to maintain existing hydraulic conditions without expanding water supply capacity. The project is being carried out by the City of Dunsmuir, with all activities conducted on city-owned property and selected private lands under Siskiyou County jurisdiction. The work qualifies for categorical exemptions under the California Environmental Quality Act (CEQA) as Class 1 (operation and repair of existing facilities) and Class 2 (minor alterations to utility systems), indicating no significant environmental impact is anticipated. Performance occurs at multiple locations including Mossbrae Springs, the North Dunsmuir Tank site, and areas near the Dunsmuir Avenue/I-5 interchange, with inspection and acceptance responsibilities resting with the City. The contract is classified as a forecast, with no solicitation number, fixed pricing, or formal award criteria provided; payment methods are limited to cash, credit, or check, and no formal invoicing systems or contract administration personnel such as COR, COTR, or PCO are designated beyond the City Manager, Dustin Rief, who serves as the primary point of contact. No federal acquisition regulations, special contract clauses, packaging requirements, or offeror certifications are incorporated, reflecting a municipal infrastructure project managed locally without federal procurement oversight.