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Performance data for enhanced Innovative/Alternative (I/A) septic systems for nitrogen removal installed in a field demonstration in Barnstable, Massachusetts (2021 - 2023). Version 2.

Published by U.S. EPA Office of Research and Development (ORD) | U.S. Environmental Protection Agency | Metadata Last Checked: August 02, 2025 | Last Modified: 2024-03-21
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 README file contains additional details, including notes on data limitations and a change log. This dataset is associated with the following publication: Erban, L.E., S.K. Wigginton, B. Baumgaertel, B. Horsley, T.D. McCobb, Z. Crocker, S. Horsley, and T.R. Gleason. Reducing wastewater nitrogen loading by >90% with carbon-amended septic systems: a field demonstration in Barnstable (Cape Cod), Massachusetts. JOURNAL OF ENVIRONMENTAL MANAGEMENT. Elsevier Science Ltd, New York, NY, USA, 370: 122737, (2024).

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