Commission weighs peer-review scope for 0 School Street 40B project amid vernal‑pool and construction‑phase concerns

The Manchester Conservation Commission spent the largest portion of its July 21 meeting on the continued 0 School Street (Shingle Place Hill) 40B application, focusing on whether proposed peer-review contracts would provide the specialized analysis commissioners said is needed for vernal pools, stormwater, and construction-phase protections.

Bethany Barstow summarized the proposals: "Tig and Bond is a lump sum of $10,000, while Weston and Sampson is $15,800," she said, noting differences in the emphasis of each firm's scope. Commissioners and members of the public pressed for broader expertise than was outlined: concerns included protection of vernal pools during both construction and long-term operation, potential salt contamination from winter roadway maintenance, whether retaining-wall designs could change groundwater recharge and runoff patterns, and the influence of lighting from many building windows on sensitive amphibian habitat. Attorney Dan Hill, representing the Manchester Essex Conservation Trust, urged the commission to ensure peer reviewers include wetland biologists and groundwater modelers, saying the town already has prior hydrologic and biological work that the reviewers should consider.

Commissioners directed staff to ask the shortlisted peer-review firms for expanded proposals addressing vernal-pool ecology, construction‑phase impacts, and three‑dimensional groundwater/hydrology modeling; they also said the commission would solicit additional proposals and report back at the August 11 meeting. The hearing was continued to allow the commission time to review amended scopes and any supplemental submissions.