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City of Phoenix official website

    IPP Overview 

    The Industrial Pretreatment Program (IPP) is a federally mandated pollution control program under the Clean Water Act which regulates the discharges of industrial and commercial facilities to the sanitary sewer system.​

    IPP Goals: 

    • Prevent the introduction of pollutants into wastewater treatment plants that will interfere with treatment operations.
    • Prevent the introduction​ of pollutants that will pass through the treatment works and be incompatible with the environment.
    • Improve the feasibility of recycling and reclaiming the municipal and industrial wastewaters and biosolids.
    • Enforce applicable EPA wastewater quality standards.
    • Reduce the health and environmental risk of pollution caused by wastewater discharges to wastewater treatment plants.

    IPP Compliance Academy

    Industrial Pretreatment Staff 

    IPP group 1

    Industrial Pretreatment Group 1

    IPP group 1

    Industrial Pretreatment Group 2