Preliminary Decision - Recertification of Prospect No. 3, LIHI #109

Lexington MA (June 2, 2020):  On May 29, 2020 the Low Impact Hydropower Institute (LIHI) preliminarily approved the Prospect No. 3 Project (LIHI #109) for a new 5-year term of Low Impact Certification. The Certificate includes the following conditions:

Condition 1:  The facility Owner shall submit results of the 2020 dissolved oxygen and macroinvertebrate monitoring study reports to LIHI within 60 days of report finalization.  Submittals shall include all agency correspondence and consultation related to study results. LIHI reserves the right to modify or rescind the Certification depending on study results.  The facility Owner shall provide to LIHI in annual compliance submittals, a summary of all resource agency consultation, and any agency determinations that adaptive management measures are required for ramping rates, dissolved oxygen, macroinvertebrates, or total dissolved gas.  The summaries shall include copies of approved adaptive management plans and schedules for their implementation.

Condition 2: The facility Owner shall provide to LIHI in annual compliance submittals, a summary of activities related to the four off-site fish passage mitigation measures until all measures have been installed and related post-construction monitoring has been completed.  Submittals shall include all agency consultation during project planning and implementation, and approvals of installed measures.

This decision is preliminary pending the 30-day appeal window. Only those who commented on the initial application during the 60-day comment period are eligible to file an appeal. Such appeal needs to include an explanation as to how the Project does not meet the LIHI criteria. Appeal requests can be submitted by email to with "Prospect No. 3 Project” in the subject line, or by mail addressed to the Low Impact Hydropower Institute, 329 Massachusetts Ave, Suite 6, Lexington, MA 02420. All requests will be posted to the website. The applicant will have an opportunity to respond and any response will also be posted. Requests must be received by 5 pm Eastern time on July 2, 2020. The full application and reviewer's report are available HERE.

If no appeal requests are received and the decision becomes final, the Certification term for the Project will be December 31, 2019 through December 30, 2024.