GROTON – Improvements continue apace at the West Groton plant of the Hollingsworth & Vose company, manufacturers of paper filters used in industry and automotives.

The latest improvement comes in the wake of a number of other projects approved over the last year including the removal of a small piece of land at the plant from Chapter 61 relating to forestry.

The reason for that action was to enable the company to upgrade its treatment facility located immediately adjacent to the open land.

Another project involved the demolition of an existing 6,500 square foot building that was to be replaced by a larger one of almost 10,000 square feet.

In that instance, the addition was needed to prepare the plant for the installation of new drying equipment that needed more space than what was currently being used. Also planned was an expansion of existing laboratory space.

According to company attorney Robert Collins who spoke before the Planning Board last week, the latest improvement to the plant was of somewhat lesser scale than the others involving the construction of a roof over a concrete platform connecting two existing buildings at the rear of the plant.

The platform has been constructed at the same level as the flooring in the neighboring buildings for easy access with the 130 foot long span often used for temporary storage of bales of fiberglass.

As such, employees crossing from one building to another and the bales stored on the platform are often exposed to the weather and a roof overhead would provide needed protection for both.

Concerns about the project raised by board members included the size of the area to be covered, changes in use, and drainage and runoff issues.

Since construction of the roof would not increase the impermeable area of the plant nor expand its working space, Collins asked for the building project to be waived from the board’s standard site plan review process.

“As long as the operation remains the same and water is going to the same place, I’m willing to waive the requirement,” said board member Ray Capes, echoing the sentiments of his colleagues.

“I think it would be a waste of time to hold a site plan review,” added fellow board member Jason Parent.

With all members in agreement, the board voted unanimously to approve the request for a waiver.

Also at its meeting of March 29, the board voted to grant a special permit to Donald and Mary Spigarelli, owners of property at 99 Indian Hill Road who applied to have their land divided into a number of different lots.

According to engineer Stan Dillis, the 10 acre property will be divided into three lots including one hammerhead lot of roughly 2 or more acres each and was intended for future development.