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Grants Pass council approves Amendment 13 to water-treatment project, adds roughly $9.19 million and 28 days to contract
Summary
The city approved a resolution authorizing the city manager to sign Amendment 13 with Slayton Constructors for intake and raw-water pump-station work on the replacement water treatment plant; staff said the amendment adds about $9.19 million and 28 days to the contract and that funds are budgeted within the project.
Grants Pass City Council on Feb. 18 approved a resolution authorizing the city manager to sign Amendment 13 to the design‑build agreement with Slayton Constructors for intake and raw‑water pump‑station modifications to the replacement water treatment plant.
City staff presented the amendment as the final modification needed for the intake construction after hydraulic flow issues were identified in detailed design work. Jason, the presenting city staff member, said the amendment’s cost was $9,185,938 and that the change would add 28 days to the contract schedule. He told the council the total contract value with Slayton would be about $124,000,834.67 and that the funds for the amendment are budgeted and available within the project.
Jason reviewed the project history: council approved a guaranteed maximum price (GMP) in January that provided cost certainty for most of the project, and earlier amendments addressed preliminary design, electrical‑cost escalation and other design changes. He said Amendment 11 covered detailed pump‑station design and Amendment 12 had addressed an electrical price increase of about $810,007.33. He also noted that the federal BRIC grant the city had pursued was later canceled, which changed some design and procurement assumptions.
Councilors asked for specifics about routing and cost savings. Jason said moving the main feed line into the parkway reduced construction cost and disruption compared with running a 30–36‑inch line down J Street, though it required removing more trees. He cited value engineering such as consolidating pumps (four instead of six) and a campus‑layout change that reduced overall system cost. Jason said some earlier estimates had been held as placeholders in the project budget and that the amendment’s cost would not change the previously approved bond amount or the rate projections used to model debt service.
Rick moved the resolution; Kathleen seconded. Council voted unanimously to approve the resolution.
The city manager will execute Amendment 13 and staff said they will continue construction and procurement activities consistent with the amended design‑build agreement. The council did not receive any public comment specific to this resolution during the allotted public‑comment period.
