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Authority staff report emergency repair to water main gate valve; excavation and change-order risk noted
Summary
During construction staff found a cracked flange on a water service component; crews performed a temporary repair, but permanent excavation and replacement may trigger change orders and higher costs depending on whether work is inside or outside and whether it exceeds local contracting thresholds.
Authority staff reported an unexpected problem during the water main gate valve replacement work: when the contractor removed an existing component, a flange cracked and the line began leaking. Workers sealed the crack with epoxy as a temporary fix that "held overnight," staff said, but they cautioned the repair may be only temporary and that a permanent replacement could require excavation.
Staff told the board that Boston Mechanical completed the scope of work but, upon removal of existing materials, discovered the cracked flange at the final riser coming out of the ground. The contractor applied an epoxy repair that stopped the leak overnight; staff are pursuing excavation contractors to install a new flange and to verify the integrity of the piping. One contractor estimated that outside excavation work "would probably be over 10" (thousand dollars), and staff said if costs exceed the authority’s $10,000 informal procurement threshold they would seek statewide contract options or proceed with an advertised procurement.
Staff noted uncertainty about whether excavation could be done from inside the building (lower cost) or would require outside access (more costly and potentially requiring removal of recently installed materials). The board was told the patch may hold for a few months but the repair is temporary; staff asked contractors to plan for a permanent replacement and to provide cost estimates so the authority can decide how to proceed before the next meeting.
Why it matters: The issue may require unplanned capital spending and could trigger formal change orders or procurement steps. Staff flagged the $10,000 threshold for simpler procurements; above that, different procurement rules apply.
