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Miramar commission approves $195,414 change order for West Water Plant reverse-osmosis skid
Summary
The Miramar City Commission approved a change order and contingency allocation for additional piping and isolation valves to the reverse-osmosis train at the West Water Treatment Plant, increasing the project cost and extending the contract completion date.
The Miramar City Commission on March 20 approved change order number 3 to the contract with Conti LLC for construction of a new reverse-osmosis skid at the West Water Treatment Plant, authorizing $195,414 in additional work and a $200,000 contingency allowance.
City utilities staff said the work covers changes to process piping and five new isolation valves that will allow bypassing and improved redundancy during future construction. "This item before you tonight, it's a change order with the agreement with Conti LLC," said Eric Francois, senior project manager, explaining the requested modifications and the reason for the added contingency. The commission approved extending the contract through June 29, 2026.
Nut graf: Utilities officials said the upgrade will add capacity and operational flexibility to the plant as demand grows. Staff characterized the work as part of a set of capital improvements to increase treatment capacity and to reduce the need for future shutdowns during construction of additional treatment trains.
The project originally authorized in October 2023 called for a 2.5 million-gallons-per-day reverse-osmosis train. Construction is roughly 40% complete, staff told commissioners. Francois and the utilities director said recent discoveries during construction prompted the added piping and valves so the plant can be bypassed and kept online while future projects are tied in.
Commission discussion focused on schedule, scope and long-term capacity. Commissioners pressed staff on completion timing and asked for a site tour; Francois said critical pumps and motors were installed and that he expected the project to finish ahead of the revised schedule. "We're building efficiencies," Francois said of the piping and valve additions, noting the change order would reduce future interruptions to water production.
The motion to approve passed unanimously. The change order and contingency increase raise the project’s total estimated cost; staff cited a revised overall project total of about $7.66 million after the approved additions.
Ending: Staff said the added valves will improve redundancy and help Miramar meet growing water demand in the western portion of the city; commissioners asked for follow-up materials on exact construction dates and welcomed a plant tour.
