According to this Boston Globe article:
"Burlington will be able to build and manage an athletic field in Mary Cummings Park through a licensing agreement the town recently struck with the city of Boston.
The deal brings to fruition Burlington’s longstanding quest to use part of the park for town recreational purposes. The 210-acre parcel of open space, most of which is in Burlington with a smaller section in Woburn, is held in trust by Boston.
The agreement provides Burlington with use of 5 acres of the park for the athletic field, with the option to extend the license another five years. Burlington’s only obligation, apart from paying a nominal annual fee, is to maintain the site, which is at the corner of Blanchard Road and South Bedford Street."