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Committee forwards $303,704 preliminary design contract for Nolan repairs and approves $1.09 million direct purchase for switchgear
Summary
The committee recommended a $303,704 ‘10% design’ contract to begin near‑term engineering for Nolan plant condition repairs and approved a $1,090,454 direct equipment purchase for switchgear to reduce single‑point electrical failure risk; staff emphasized the 10% design is an initial scope that will be amended for full design and construction.
City staff and Garver engineering representatives described a staged approach to address condition-based improvements at the Nolan Wastewater Treatment Plant and sought committee support to begin a limited “10% design” to firm equipment selections, process narratives and cost estimates.
Garver presented a heat map of assets ranked by likelihood and consequence of failure. The 10% design contract is intended to focus on the highest‑risk, near‑term items (0–5 year needs) and to preserve options for delivery method (design‑bid‑build, design‑build or construction manager). The package before the committee would initiate the engineering effort for $303,704; staff described the broader condition-based program of improvements as having an estimated capital scope of roughly $80 million for the highest-priority items.
Committee member motioned and seconded to forward the contract package to City Council for consideration; the committee voted in favor.
Separately, Tim Nundgren presented an item to purchase new electrical switchgear directly for Nolan to mitigate a single point of failure that could disable the plant electrical service. Engineering had completed designs and the city proposed to directly procure long‑lead equipment (estimated manufacturer and materials cost about $1,000,000) and publicly bid installation labor. After bid review, the recommended installer was A. Riggs (local firm with prior service experience on the plant). With sales tax included the total reported cost to the city is $1,090,454.05. A motion to forward the purchase to City Council for approval was made and carried.
Why it matters: the 10% design is meant to accelerate engineering and keep projects on schedule ahead of a rate study and funding decisions; the switchgear purchase addresses an identified operational single‑point failure that could disable plant power and emergency generation connections.
Staff said the 10% design will be followed by further amendments and that the $80 million estimate covers the set of near‑term condition-based improvements; the committee recommended both items to City Council.
