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  • Wastewater Reclamation


    The Pima County Regional Wastewater Reclamation Department (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 seven sub-regional facilities).

    Ordinance 2016-29

    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?
    Click here for more information.

    Major Sewer Project Information: www.sewerimprovements.com


    Residential Information

    Commercial/Industrial Users

    Educational Information

    Engineering Services

    Development Permitting Process Overview

    Design Standards, Specifications & Details

    Our Vision

    To be an industry leader in the management and sustainability of the water reclamation cycle and other renewable resources.

    Our Mission

    To protect the public health, safety, and the environment by providing quality service, environmental stewardship, and renewable resources.

    Our Strategic Plan

    RWRD's updated five year Strategic Plan (FY 2014/15 - FY 2018/19) provides a guide to decision-making and resource management in pursuit if its organizational vision, mission and goals. It identifies, goals, and key performance indicators to drive success across six dimensions (pillars) of the organization and across three core business systems.

    En Español


    Director's Office

    Planning and Engineering


    • Conveyance System Operations and Maintenance
    • Pumping System Operations and Maintenance
    • CCTV Program
    • Blue Stake Locating
    • Odor Control Program
    • Capital Improvement Projects
    • Conveyance Rehabilitation Projects
    • Vector (Roach) Control Program
    • Environmental Compliance and Safety
    • Conveyance System Management


    • Water Reclamation Facilities
      • Tres Rios
      • Agua Nueva
      • Avra Valley
      • Green Valley
      • Corona de Tucson  
      • Mt. Lemmon
      • Pima County Fairgrounds
      • Arivaca Junction


      Regional Optimization Master Plan

      Regional Optimization Master Plan (ROMP) is a master plan to allow the Pima County Regional Wastewater Reclamation Department (RWRD) to meet current environmental regulatory requirements mandated by the Clean Water Act.

      What is RWRD planning?

      RWRD is working to meet new environmental requirements mandated by the Arizona Department of Environmental Quality (ADEQ). ADEQ regulates our activities and the way we convey and treat the community’s sewage. ADEQ has directed us to meet more stringent water quality standards for our effluent. These standards are based on mandates set by the United States Environmental Protection Agency (EPA) through the Clean Water Act.

      What new standards does RWRD have to meet?

      ADEQ is mandating that RWRD decrease the amount of nitrogen and ammonia in our effluent.

      Why is it important to decrease nitrogen and ammonia levels in effluent?

      Although nitrogen is helpful in plant growth, it is harmful to aquatic life. Additionally, effluent that is discharged into the Santa Cruz River can percolate into our groundwater and increase nitrogen and ammonia levels in the aquifer. Although small levels of nitrogen naturally exist in the aquifer, high levels of nitrogen in drinking water can be harmful to children and unborn babies. No local water providers draw from the groundwater near the Roger Road and Tres Rios facilities, and the Regional Wastewater Reclamation Department performs regular monitoring of the groundwater in these areas.

      ROMP Project Updates

      En Español

      Strategic and Long-Range Planning

      Major Regional Planning Studies

      Treatment and Effluent

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      Wastewater Reclamation

      201 N. Stone Ave., 8th Fl.
      Tucson, AZ 85701

      (520) 724-6500

      Sewer Emergencies

      (520) 724-6500

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