Aspen WTP Improvements

The City of Aspen sought solutions to address its aging surface water treatment facility and provide long-term water resilience for the community, as the current plant has not been upgraded since the 1980’s. The City selected Garver to develop a master plan with phased improvements that address the age of the plant’s unit processes, and hydraulic structures which have caused the facility to perform below its 26 MGD treatment capacity, leading to operational and safety concerns given the plant’s highly variable seasonal raw water conditions.

The project began with a focus on resilience, budget management, and the modernization of design standards. Garver started by developing a master plan for the facility, and hosting workshops with City staff to prioritize improvements and promote a safer, more operable, environment. Because Aspen’s facility drawings were incomplete, Garver used 3D scanning technology to develop an accurate view of the facility that reflects existing plant conditions. We used the updated model to build work packages and plan future upgrades.

We’re currently in the detailed design phase with anticipated construction beginning in 2026. The first phase of improvements includes new chemical storage and feed facilities, media filtration improvements, and upgrades to the SCADA system. Future phases will address solids handling, flocculation and sedimentation processes, as well as stormwater and snowmelt management. By phasing the improvements, we’re providing the City with the option to choose between going directly to City council for funding or planning the improvements out in future budget cycles.

Our design improvements will ultimately give Aspen a modern drinking water facility that operates more efficiently and provides resiliency for the future of the community.