Have you ever wondered what happens to your water after you flush the toilet, take a bath or wash dishes?
This video explains the treatment process at Pima County Regional Wastewater Reclamation Department’s (RWRD) largest metropolitan treatment plant. Tres Rios Wastewater Reclamation facility (WRF) - formerly named Ina Road WRF - has the capacity to treat up to 50 million gallons a day. On a typical day, RWRD treats approximately 30 million gallons of wastewater at this facility.
Wastewater treatment is a complex process, which involves combined physical, mechanical, chemical and biological processes and operations to remove solids, organic matter and nutrients from wastewater. After the treatment process, the treated wastewater (called effluent) is used for golf courses, public parks and other reuse. A portion of our effluent is also dechlorinated and discharged into the Santa Cruz River.
Our mission is to protect the public health, safety, and the environment by providing quality service, environmental stewardship and renewable resources.
RWRD provides design, management and maintenance of the sanitary sewer system, including the conveyance and treatments systems (3,400+ miles of sewer, two metropolitan wastewater treatment plants and six sub-regional facilities).
Revisions to the Pima County Code: Chapter 13.24 - Sanitary Sewer User Fees
was approved unanimously by the Board of Supervisors on May 3, 2016.
Sewer Outreach Subsidy Program
Do you or someone you know qualify for a discount on your sewer bill?
for more information.