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Mason County seeks to increase hydraulic-consultant contract and evaluates sewer-plant membranes
Summary
Public Works asked to raise an on-call hydraulic consultant contract from $200,000 to $1 million to cover RCO-funded culvert projects and reported vendor-led cleaning and staff training at the county’s membrane sewer plant after premature fouling; a one-day railroad repair closure on Cole Road was also noted.
County Public Works staff told commissioners they want to amend an on-call hydraulic-consultant contract to raise the maximum from $200,000 to $1,000,000 to support several RCO-funded culvert replacement projects. "We would like to amend the contract with them to go from maximum 200,000 up to a maximum of 1 million dollars," the county engineer said.
Public Works said the majority of the work is funded through the Recreation and Conservation Office and that most funds are already budgeted. Commissioners expressed support for the increase, noting the work is project-driven and that increased capacity will be necessary to deliver multiple culvert projects.
Separately, waste-management staff described a maintenance plan for membranes at the county’s membrane treatment plant after operators found membranes heavily fouled after only four to five years in service. Vendor Kubota will send representatives and provide staff training; crews will pull and manually desludge membranes for re-evaluation before deciding on replacement. Staff said membranes are typically expected to last 10–15 years and urged a temporary hold on purchasing replacements until the vendor evaluation is complete.
Public Works also flagged a railroad company request to close Cole Road for a one-day repair in mid-July to replace some rail and ties; staff will provide paperwork and coordinate notifications. Commissioners asked staff to follow up on signage complaints and sight-line issues raised by residents in other locations.
Staff will prepare the contract amendment and the required agenda items for commissioner approval in the normal process.
