The Town of Millis Planning Board voted Oct. 21 to approve a modification and amendment to a special permit for a proposed Wireless Edge wireless communications facility at 121 North Norfolk Road.

The modification narrows recent engineering changes to stormwater drainage and retaining-wall details and updates material specifications. The procedure followed a continued public hearing announced under Chapter 48, Section 11, Massachusetts General Laws, and the town’s Zoning Bylaws sections 13(c) and 13(n), as noted in the board’s public notice.

Jim, the Townsend engineer working on the applicant’s design, told the planning board the most recent revisions moved runoff away from the lower basin and into the facility’s upper basin. “We modified this corner and and got our our swale to deliver all of the stormwater drainage into our upper basin,” he said, summarizing the change. He also said the plans now specify concrete compressive strength of 4,000 PSI and that the proposed retaining-wall system is designed “to not not to exceed 4 feet in any location.”

Planning board members said the town’s consultant had reviewed the revised plans and that the consultant’s comments had been addressed on the submitted drawings. After board discussion, a member moved to approve the modification and amendment to the special permit; another member seconded the motion. The board chair called for the vote and members responded, “Aye.” The board’s record shows the motion carried.

Michael Dolan, counsel to Wireless Edge, spoke after the public hearing closed and asked the board to encourage the town’s third-party construction-monitoring consultant to coordinate visits with the applicant’s team to help contain monitoring costs. “My client has spent a lot of money on that consultant… we just received another estimate for another big chunk of money to monitor the construction activities,” Dolan said, and asked the town to be “as collaborative as possible with us as far as timing.”

An attendee asked when construction would begin; one participant said residents near the site have “been waiting, what, 3, 4 years.” A representative for the applicant said they intend to break ground as soon as possible but did not give a firm start date.

The planning board’s public notice named the applicant as Wireless Edge, 38 West Market Street, Rhinebeck, New York 12572. The board’s file includes the application and the revised site plans on which the vote was based.