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Coastal News Today | RI - The Possible Future of Septic Systems: A Simpler, Cheaper Nitrogen-Removing Design

CHARLESTOWN, R.I. A simpler, less-expensive, advanced on-site wastewater treatment system will soon be undergoing field tests in Rhode Island. In the coming weeks, the Rhode Island Department of Environmental Management (DEM) is expected to approve a pilot project to test an experimental nitrogen-removing septic system known as “layered soil treatment area” or LSTA for short. Proposed by a consortium of the town of Charlestown and the University of Rhode Island’s Laboratory of Soil Ecology and Microbiology and New England On-Site Wastewater Training Program, the non-proprietary septic system would put nitrogen-removing technology within reach for more coastal homeowners. Since 2008, the state has required that failing septic systems in the coastal zone be replaced with advanced nitrogen-removing wastewater treatment systems. The requirement also applies to new construction and to major rebuilds.

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