Subjgrp 68. Connecticut
- § 117.202 - Cold Spring Brook.
- § 117.205 - Connecticut River.
- § 117.207 - Housatonic River.
- § 117.209 - Mianus River.
- § 117.211 - Mystic River.
- § 117.213 - New Haven Harbor, Quinnipiac and Mill Rivers.
- § 117.215 - Niantic River.
- § 117.217 - Norwalk River.
- § 117.219 - Pequonnock River.
- § 117.221 - Saugatuck River.
- § 117.223 - Shaw Cove.
- § 117.224 - Thames River.
- § 117.225 - Yellow Mill Channel.