PROJECT HIGHLIGHTS
Commissioned May, 2011
Commercial WW, Greenfield
Permit(s); Not Required
8/NA/0.3 (TN/TP/Turbidity)
Casino, Resort, Truck Stop ⇒ Injection Well to Aquifer
MMF Capacity: 0.2 MGD
$22.5/gal
0.5 FTE (Full‐Time Employees)
“Working with Ovivo has been a great experience. We appreciate Ovivo’s team approach to design and construction.” ‐ Jeff Christener
DESCRIPTION
Considering the high quality wastewater treatment and ease of expandability fundamental to the growth and development of the reservation, the Upper Skagit Indian Tribe commissioned the new MBR plant in May 2011. Constructed in a short span of 7 months, the plant is presently handling flows from the tribe’s Resort and is equipped to service also the future expansions including golf course, shopping complex and an additional hotel. As the discharge is going to a ground water aquifer, it has been successfully determined that the effluent quality from the MBR has been meeting all primary drinking water standards
LOCATION
USIT Bow Hill Road, WA
IMAGES
PROJECT OVERVIEW
| System Type(s) | Enviroquip ® MBR, MBT |
|---|---|
| Previous Facility Type | None |
| Owner | Upper Skagit Indian Tribe |
| Engineer | Wilson Engineering, LLC. |
| Contractor | Colacurcio, McClure & Sons, Express Electric |
| Operations | Water & Wastewater Services |
| Delivery Method | Pre-Selection |
| Time To Retrofit | 7 months |
| Total Installed Project Cost | $4,500,000 |
PLANT DESIGN INFORMATION
| Fine Screen Type | Drum Screen |
|---|---|
| Aperture or Slot Size | 3 mm |
| Supplemental Aeration Technology | Fine Bubble, Disks |
| MBR Blower Type | Positive Displacement |
| Solids Management Data | Membrane Thickening |
| SCADA System | Wonderware |
| Disinfection Method | UV |
| # Process Stages | 3 |
MBR (MEMBRANE ZONE) DESIGN
| Filtration Mode | Pumped |
|---|---|
| # of Reactors : | 2 |
| Submerged Membrane Unit (SMU) | RM200, KUBOTA® |
| # SMU | 6 |
| Design Flux (MMF) | 10.7 gfd |
| Minimum Temperature | 12°C |
| Peak Factor | 2.0 |
| # of Maintenance Cleans | 4 |
