(a) The dividing line between inland water and the marine district in the towns of Groton and Stonington shall be a line five hundred feet north of U.S. Route 1 extending from the west bank of the Thames River to the Rhode Island line, northerly above which dividing line shall be known as “inland water” and southerly below which line shall be known as “the marine district”. This section applies to tidal waters only and does not pertain to freshwater ponds or streams in the marine district, which ponds and streams shall be considered as inland waters.

(b) The demarcation line between inland and marine waters of the Niantic River shall be the Golden Spur Bridge over Route 1A.

(c) The demarcation line between inland and marine waters of the Housatonic River shall be the Merritt Parkway Bridge over the Housatonic River.