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Trustee pulls change-order credits after alleging missing waterproofing and poor workmanship at campus retaining walls

Mill Valley School Board · November 18, 2025
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Summary

Trustees pulled two parts of Tam Valley and Strawberry Point change orders after a trustee reported waterproofing specified and paid for was omitted; the board tabled the items and asked staff and the owner's representative to review remediation options.

A trustee raised concerns about construction quality and the omission of a self-adhered waterproofing membrane behind concrete retaining walls at Tam Valley and Strawberry Point, saying the product was specified and paid for but not installed. The trustee described efflorescence (white salt staining) and visible cracks tied to voids in the concrete and asked the district to require the contractor to remedy the work.

The trustee said the owner’s representative (AECOM) had approved the contractor’s submittal to omit the membrane despite specifications calling for it; the trustee asked that the district not "rubber stamp" the change orders and moved to table the two specific parts of the change orders while staff investigates. Trustees voted to table the items and requested a written memo and a review by district construction oversight staff.

District staff acknowledged the oversight in the change-order approvals process and said next steps would include internal review to determine liability and remediation options. Trustees emphasized expectations for workmanship on bond-funded projects and directed staff to follow up with the design and construction teams and return the items to a future board meeting with recommended remedies.