358 Chestnut Hill Ave, #204B Boston, MA 02135 Office: 617.505.5095 www.CleanWaterOps.com A 2008 BioWin modeling study concluded “the existing facility has half of the necessary volume at the current flows... to consistently achieve [8 mg/L effluent] nitrogen…” A $61 million dollar facility upgrade to Amherst’s 7.2 MGD mechanical aeration facility was found necessary. Instead, Amherst staff, working with CleanWaterOps, established a lower F:

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