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About This Item

 

Full Description

This wastewater standard contains minimum requirements for residential wastewater treatment systems having rated treatment capacities of 1514 L/d (400 gal/d) to 5678 L/d (1500 gal/d) that are designed to provide reduction of nitrogen in residential wastewater. Management methods for the treated effluent discharged from these systems are not addressed by this Standard. A system, in the same configuration, must either be demonstrated to have met the Class I requirements of NSF/ANSI 40 or must meet the Class I requirements of NSF/ANSI 40 during concurrent testing for nutrient removal
 

Document History

  1. NSF/ANSI 245-2019

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    Residential Wastewater Treatment Systems - Nitrogen Reduction

    • Most Recent
  2. NSF 245-2018


    Residential Wastewater Treatment Systems - Nitrogen Reduction

    • Historical Version
  3. NSF 245-2013


    Wastewater Treatment Systems - Nitrogen Reduction

    • Historical Version
  4. NSF 245-2012


    Wastewater Treatment Systems - Nitrogen Reduction

    • Historical Version
  5. NSF 245-2010a


    Wastewater Treatment Systems - Nitrogen Reduction

    • Historical Version
  6. NSF 245-2010


    Wastewater Treatment Systems - Nitrogen Reduction

    • Historical Version
  7. NSF 245-2007


    Wastewater Treatment Units Nitrogen Reduction

    • Historical Version