Cascade Groundwater Alliance

Cascade Groundwater Alliance LogoRockwood Water and the City of Gresham formed the Cascade Groundwater Alliance to expand our groundwater systems together. The Groundwater Development Master Plan projects are under construction and scheduled to be completed in 2026.  Learn more here:

Project Updates:

Cascade Well 8 – (311 NE 141st) – Final well preparations are scheduled for later this summer, in anticipation of Package 3 site improvements.

Package 1 – (NE 202nd Avenue, 19601 NE Halsey St, & Surrounding Area)- Cascade Reservoir 2 (CR2) is online and rehab has started for CR1. Cascade Well 7 (CW7) startup will be later this summer. The 36” groundwater transmission main (TM) is complete and final paving/striping will take place in July.

Package 2B* –
Design is completed and awarded to a contractor, who will begin this fall. This is for the continuation of a 36″ TM from 202nd & Glisan to approximately 194th & Division, to supply finished groundwater to the District’s Bella Vista reservoir and Gresham’s Grant Butte reservoir.

Package 6 – (Kirk Park (CW9) wellhouse and Transition Mains (TM) – Kirk Park (CW9) wellhouse and transmission main. Construction will begin this fall.

Upcoming Projects:

Package 2A – Design for a TM to move water to and from the 141st Pump Station (PS) is at 30%. Construction to begin in the fall of 2023.

Package 3 – Design has begun for a 4 million gallon per day (MGD) treatment facility, reservoir upgrade and new wellhouse construction for our NE 141st Avenue site. Construction is scheduled for 2024.

Package 4 – (District Office – 19601 NE Halsey) Design for Package 4 is at 60%. Package 4 is a 25-30 MGD treatment facility and Pump Station (PS) upgrade. Construction will begin in late 2023.

Package 5* – Drilling for a production well (CW6), near Stark & NE 223rd Ave, is nearly complete. Design for a wellhouse and treatment facility will begin in 2023.

*City of Gresham Managed Project