This project involved improvements to the existing City of Stayton Water Treatment Plant which included maintenance of the raw water intake, replacement of the slow sand Filter No. 3 liner and media, soda ash feed modifications , modifications to the plant disinfection system, clear well maintenance, two new 100 hp pumps, 1 with AFD, automation, instrumentation and electrical upgrades, and security improvements. Improvements to the Pine street Booster Pump Station include 5 new 25 hp pumps, 2 with AFD’s, automation, instrumentation and electrical upgrades.
The majority of the work associated with the project was the reconstruction of slow sand Filter No. 3. Filter No. 3 was approximately 35,000 SF in size. A new 6 mil HDPE liner was installed complete with anchor trench, an initial gravel layer (3370 CY/5400 Ton) was installed with new under drain pipe system, followed by the sand media layer (4500 CY/6930 Ton). The sand media was placed utilizing a combination of low ground pressure equipment and a Putmeister Telebelt®. All media was placed within specification. Emery & Sons Construction previously reconstructed slow sand filters #1 & #2 in 1996 as well as the original reconstruction of slow sand filter #3 in 1993. Each of these early projects were constructed with Martin Boatwright of Boatwright Engineering who was the City Engineer at that time.
Owner: City of Stayton
Engineer: Black & Veatch
Location: Stayton, Oregon
Completion Date: 2010