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Staff asks authority to proceed on spring upgrades after rebid; UV system to reduce occasional coliform detections
Summary
Staff said a spring‑protection project funded by a drought‑relief grant originally budgeted up to $800,000 was redesigned after high bids and returned at about $299,000; staff requested authority to avoid rebid and begin construction and described adding a UV disinfection system to address rare coliform detections.
Staff presented an agenda item authorizing award of a construction contract for an emergency project at the springs. The city had received a drought‑relief grant of up to $800,000; an earlier bid exceeded the budget, staff redesigned the project and obtained a rebid for approximately $299,000. Staff asked council to authorize avoiding further rebidding and allow construction to begin to meet the project's completion timeline by year end.
Staff described the planned ultraviolet (UV) disinfection upgrade and how it interacts with chlorination protocols: the UV system would provide an additional treatment step and reduce the need for routine chlorination except in response to a confirmed E. coli or similar event. Staff noted a single E. coli incident in 1975 tied to an upstream septic failure and said the upgrades respond to regulatory requirements and preparedness concerns.
