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Select Board approves upsized pressure-reducing valve in water treatment change order
Summary
The select board approved Change Order 7 to increase a pressure-reducing valve from 6 inches to 8 inches in the PRV vault to add hydraulic resiliency for future growth; the presenter described reduced wear and lower long-term replacement costs as justification. The cost was read on the record with minor inconsistencies in how the dollar amount was stated.
The Select Board voted to approve Change Order 7, which revises pipe valve sizes and extends the precast PRV vault to accommodate larger fittings intended to support future growth at the town's water treatment plant.
A project presenter explained that the original design called for a 6-inch pressure-reducing valve but that the contractor and design team recommend upsizing to an 8-inch valve "to handle, you know, future growth and demand in town," and to "provide more resiliency for you." The presenter said the upsizing reduces expected wear under higher flows and lowers longer-term maintenance and replacement costs.
During discussion a board member asked whether a potential new well being treated through the plant was driving the change; the presenter confirmed that anticipated future demand, including new sources, was a factor. The presenter estimated that delaying the upgrade could increase replacement costs substantially in the future, saying the price in 10 years could be "70 80 grand."
The motion to approve Change Order 7 was made on the record by a select board member and carried; the presenter read the cost into the record. The transcript includes multiple spoken cost figures when the amount was read aloud (the presenter first said "$18,000" and later the amount was read with a different numeric grouping on the record). The exact stored contract appropriation as recorded in the meeting audio is ambiguous; see clarifying details below.
Next steps: The approved change order will proceed as part of the construction contract for the water treatment project; no additional vote or schedule dates were recorded in the meeting transcript.
