Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content
  • Feedback

    • Performance data for enhanced Innovative/Alternative (I/A) septic systems for nitrogen removal installed in a field demonstration in Barnstable, Massachusetts (2021 - 2025)

    Metadata Updated: October 9, 2025

    Performance data for enhanced I/A septic systems designed for nitrogen removal that were installed during a demonstration project in Barnstable, MA. Includes 1) field and laboratory measurements of water quality parameters in influent, effluent, and lysimeters below leach fields (where available) and 2) metered flow to each system. The initial release (Version 1) includes data collected from 2021-12-10 through 2023-05-03. The second release (Version 2) adds data through 2023-12-04. The third and final release adds (Version 3) adds data through 2025-07-21. The README file contains additional details, including notes on data limitations and a change log.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: See this page for license information.

    Downloads & Resources

    Dates

    Metadata Created Date September 21, 2023
    Metadata Updated Date October 9, 2025

    Metadata Source

    Harvested from EPA ScienceHub

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date September 21, 2023
    Metadata Updated Date October 9, 2025
    Publisher U.S. EPA Office of Research and Development (ORD)
    Maintainer
    Identifier https://doi.org/10.23719/1529539
    Data Last Modified 2025-09-29
    Public Access Level public
    Bureau Code 020:00
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Harvest Object Id 56069688-b448-4eb7-8117-b87b6d25352d
    Harvest Source Id 04b59eaf-ae53-4066-93db-80f2ed0df446
    Harvest Source Title EPA ScienceHub
    License https://pasteur.epa.gov/license/sciencehub-license.html
    Program Code 020:000
    Publisher Hierarchy U.S. Government > U.S. Environmental Protection Agency > U.S. EPA Office of Research and Development (ORD)
    Source Datajson Identifier True
    Source Hash 2df7eaa3c42c9434081ceecdeb100cad906e6fb9f2be9ea4f39a11a6320e8f40
    Source Schema Version 1.1

    Didn't find what you're looking for? Suggest a dataset here.