Any town, city or borough may enter into agreements with the Commissioner of Energy and Environmental Protection or any federal or state agency concerned with watershed protection projects for the purposes of developing, maintaining and operating recreation and fish and wildlife sites in the watershed areas of projects provided for in sections 22a-318 to 22a-322, inclusive. Any town, city or borough may appropriate funds, receive gifts of land or money and allocate funds as its share of the cost of such recreational or fish and wildlife site development, maintenance and operation.