25 octobre 2021 : The Low Impact Hydropower Institute has issued a final decision on the certification of the Narrows Road Pressure Reduction Valve Station Project located in the Nashua River watershed in Massachusetts.  The 30-day appeal window closed on October 2, 2021 and no appeals were filed. Therefore, the decision to certify the project is now final.  The certificate term is June 25, 2021 through June 24, 2031.