Major Sewer Improvement Effort

Project Overview

The Regional Wastewater Reclamation Department (RWRD) is responsible for sewer improvement efforts throughout Pima County. Pima County is currently rehabilitating/upgrading major facilities representing millions of dollars in investments. Ultimately, these improvements will extend the life cycle of our community's wastewater infrastructure by more than 50 years.

Park Avenue Sewer Augmentation project 

The Pima County Regional Wastewater Reclamation Department (RWRD) and its contractor Borderland Construction, began construction of the Park Avenue Sewer (PAS) Augmentation project on May 30, 2017. The PAS Augmentation project will upgrade a portion of the existing sewer to address capacity limitations and install a new 10-inch sewer interceptor line along Drexel Road from Park Avenue to First Avenue. This is part of a larger project that will also augment the Old Nogales Interceptor (ONI) from 36th Street to Old Vail Road and construct the new Aerospace Corridor (ASC) sewer along Old Vail Road from Nogales Highway to the Wilmot Prison.
view details »

Southeast Interceptor Sewer Augmentation (SEI) project

The Pima County Regional Wastewater Reclamation Department (RWRD) and its contractor, KE&G Construction, Inc., will soon begin constructing the Southeast Interceptor Sewer Augmentation (SEI) project, a 2.6 mile project, which extends south from 17th to 36th Streets and east along 36th Street between 7th and Euclid Avenues. The SEI project will upgrade a portion of the existing SEI to address capacity restrictions between 18th and 36th Streets.  
view details »

The North Rillito Interceptor (NRI) project - COMPLETED

The North Rillito Interceptor (NRI) is a large diameter pipeline that stretches 10 miles from Tucson's far east side to the Ina Road Wastewater Treatment Facility. This project was completed in April of 2017. 
view details »

22nd Street Sewer Augmentation project - COMPLETED

The award winning, 22nd Street Sewer Augmentation project extended from Alvernon Way to Swan Road. This work was necessary because the existing pipe was at or near its maximum flow capacity. This project increased sewer volume and improved the lifespan of the sewer infrastructure in the area.
view details »

Pima County