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Board allows quarterly monitoring for NITRIS pilot after year of data showing ~99% nitrogen removal

Nantucket Board of Health · November 21, 2025
AI-Generated Content: All content on this page was generated by AI to highlight key points from the meeting. For complete details and context, we recommend watching the full video. so we can fix them.

Summary

After reviewing 15 samples showing median effluent concentrations under 3 mg/L and roughly 99% total nitrogen removal, the board approved moving monitoring for the NITRIS system at 6 Washington Ave from monthly to quarterly under its provisional use conditions.

The Board of Health voted Nov. 20 to reduce monitoring frequency for the NITRIS (nitrogen-reduction) pilot system at 6 Washington Ave from monthly to quarterly after reviewing lab results presented by Clean 2 Nitro Systems.

Maureen Thomas (Clean 2 Nitro Systems) told the board the…

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