System-Wide Odor Control Program
Over the past several years, the Pima County Regional Wastewater Reclamation Department (PCRWRD) has implemented a system-wide odor control plan.
This plan includes the use of odor control infrastructure and equipment as well as monitoring equipment to continuously measure odor-causing gases. Information from monitoring equipment helps us to respond when odors become problematic at our treatment facilities. We also monitor and respond to odors generated in the sanitary sewer system. We have a team of odor control technicians who work year-round to reduce sewer and treatment facility odors.
Once the Regional Optimization Master Plan is fully implemented in January 2015, the long-standing odors on Tucson’s Westside will be greatly reduced.
Since 2007, an investment in excess of $10 million has been expended on the system-wide odor control program.
Odor control improvements in the sanitary sewer system are ongoing. Odor control in Pima County's subregional facilities are also a high priority for RWRD. Through the Regional Optimization Master Plan, state-of-the-art odor control technology is an integral part of the upgraded and expanded Tres Rios WRF and the newly-constructed Agua Nueva WRF.