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  • Design Standards, Specifications & Details

    This notification announces revisions to the 2016 Pima County RWRD Engineering Design Standards. These revisions are meant to simplify and clarify the requirements for formatting standards, reduction in the number of Sewer General Notes required on sewer plans, new RWRD Detail No. 001, revisions to scour detail, and minor editing of the 2016 Pima County RWRD Engineering Design standards.

    The Pima County RWRD Standards Committee, comprised of members of the engineering and construction community, and County staff have worked on the revisions as part of their annual work plan. Implementation of these Standards went into effect on June 25, 2017. This applies to ALL new submittals of tentative subdivision plats, development plans, landscaping plans, paving and grading plans, and public sanitary sewer connections.

    If you have any questions or comments, please notify Francisco Galindo, P.E., Civil Engineering Manager at or by telephone at (520) 724-6733.

    To view the approved standards, select an image below:

    2016 EDS Cover 2016 SSDC Cover 2016 PSFS Document
    Redlined Updates Redlined Updates Redlined Updates

    The following downloads and forms are referenced in either the PCRWRD Engineering Design Standards 2016 (EDS 2016) or the PCRWRD Standards Specifications and Details for Construction 2016 (SSDC 2016):

    The following downloads are approved A312G Applications for the use of Polyvinyl Chloride (PVC) in lieu of Ductile Iron Pipe (DIP) when crossing washes, separation from drainage structures, and sewage velocities exceeding 10 fps.

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    Wastewater Reclamation

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