Treatment Division
The Treatment Division operates and maintains the treatment facilities that receive, treat, and dispose of over 64 million gallons of sanitary sewage per day (mgd). Three major facilities handle sewage from the metropolitan Tucson area, and eight facilities serve remote areas scattered throughout sewered areas of eastern Pima County.
- Map of Treatment Facilities
- Information about treatment facilities can be found in Your Water Connection, Tucson Water's bill insert. RWRD ran monthly articles about our facilities starting in August 2009 - look on page 2. The series continued through May 2010.
Roger Road Wastewater Reclamation Facility (WRF)
The Roger Road WRF was established in 1951. It has a capacity to treat 41 mgd and serves the urban Tucson area that lies southerly of the Rillito Creek.
Illustrations showing treatment processes at the Roger Road WRF
Clockwise from upper left: clarifiers, biotowers,
enclosed biofilters, covered headworks
(part of the odor control project at Roger Road)
Ina Road Wastewater Reclamation Facility (WRF)
The Ina Road WRF has a current capacity of 25 mgd. Work to increase the facility's capacity to 37.5 mgd is underway; construction began in January 1998. This facility, established in 1977, serves the northern parts of the Tucson metropolitan area, Oro Valley, and a major portion of the Town of Marana.
Clockwise from upper left: emergency overflow
basin, headworks facility, mural art created by RWRD employee,
construction of the BNRAS facility in 2000.
Randolph Park Wastewater Reclamation Facility (WRF)
Originally placed into operation in 1975, the Randolph Park WRF was temporarily removed from active service in 1995. As part of RWRD's commitment to providing safe and efficient sewage treatment to our community, a project is currently underway to replace the Randolph Park facility with a new, modern system.
Aerial view of the Randolph WRF, 2003
Outlying Facilities
Eight outlying facilities serve smaller towns and rural areas of Pima County:
- Arivaca Junction Wastewater Reclamation Facility
- Avra Valley Wastewater Reclamation Facility
- Corona de Tucson Wastewater Reclamation Facility
- Green Valley Wastewater Reclamation Facility
- Marana Wastewater Reclamation Facility
- Mt. Lemmon Wastewater Reclamation Facility
- Pima County Fairgrounds Wastewater Reclamation Facility
- Rillito Wastewater Reclamation Facility
Clockwise from upper left: Mt. Lemmon WRF, Corona
de Tucson WRF, Green Valley WRF, Arivaca Junction WRF
