Addendum 2 Gary Roberts WTP Pre Proposal Questions.pdf

This document is Addendum #2 for the Gary Roberts Water Treatment Plant Rehabilitation project by the Town of Breckenridge Public Works, detailing pre-proposal meeting questions and clarifications. The addendum provides critical information for potential consultants, including details about the current water treatment plant's infrastructure, existing challenges, and specific areas requiring investigation and potential improvement. Key points include the current manufacturers of treatment trains (Neptune in plants 1 and 2, Trident in plant 3), electrical service specifications, and specific operational issues such as air binding in Plant 3 filters and potential gravity supply limitations from the Goose Pasture Tarn reservoir.

The document indicates that the Town has not set a specific budget for the engineering portion of the work and is seeking a consultant to investigate several technical issues, including: repair or replacement of a potentially leaky clearwell effluent valve, methods to maintain gravity water supply at lower reservoir elevations, and ongoing treatment processes like chlorine pre-treatment for iron and manganese removal. Backwash residuals are currently hauled off, dried on Town property, and taken to the landfill, with no identified toxin concerns. The addendum also notes that the fire flow study model will be made available to the awarded consultant, suggesting a collaborative approach to addressing the water treatment plant's rehabilitation needs.