Kimball Creek lift station work near completion; committee reviews $85,552 change order

The Kimball Creek Lift Station improvements are roughly 90% complete and the station is operational, staff told the City of Snoqualmie Parks and Public Works Committee. The committee reviewed change order No. 3 with Peas and Sons Incorporated for $85,552 to cover out-of-scope items identified during construction. Philip Bennett, deputy director of parks and public works, said the lift station project — part of the wastewater reclamation facility (WRF) Phase 3 work — replaces aging electrical gear, adds a variable-speed “jockey” pump to reduce frequent flow spikes to the treatment plant and increases reliability at the city’s largest lift station. Staff said the structure is sized to pump up to 7,000 gallons per minute. Bennett and project staff described major drivers of the change order: unexpected structural demolition and additional concrete and rebar encountered in the wet well, replacement of conductors and cable that were too short or damaged, and the need to source a coated 14-inch pipe on a tight schedule while maintaining bypass pumping operations. The change order includes a partial credit for an antenna already installed and staff said the design engineer RH2 is redesigning some wet-well piping and is expected to absorb some redesign costs. Committee members framed the change order as within the typical range for retrofit work. Staff said total construction change orders for WRF Phase 3, including Kimball Creek, were approximately 2% and that change orders under 5% are considered favorable for this type of retrofit work. The committee agreed to forward the change order for council consideration as a nonconsent item; staff expects final project commissioning and operator coordination through the fall and closeout later this month. The proposed contract change order is with Peas and Sons Incorporated under agenda bill AB25-085.