The Commissioner of Energy and Environmental Protection shall have exclusive jurisdiction over regulated activities in or affecting wetlands or watercourses undertaken by any Department, Agency or instrumentality of the State of Connecticut, except any local or regional Board of Education, pursuant to §§ 22a-39 or 22a-45a of the Connecticut General Statutes.
The Commissioner of Energy and Environmental Protection shall have exclusive jurisdiction over activities authorized under a dam repair or removal order issued by the Commissioner of Energy and Environmental Protection under § 22a-402 of the Connecticut General Statutes or a permit issued by the Commissioner of Energy and Environmental Protection under § 22a-403 of the Connecticut General Statutes. Any person receiving such dam repair or removal order or permit shall not be required to obtain a permit from the Agency for any action necessary to comply with said dam order or to carry out the activities authorized by said permit.
The Commissioner of Energy and Environmental Protection shall have exclusive jurisdiction over the discharge of fill or dredged materials into the wetlands and watercourses of the State pursuant to Section 401 of the Federal Clean Water Act, as amended, for activities regulated by the U.S. Army Corps of Engineers under Section 404 of the Federal Clean Water Act. In addition to any permit or approval required by the Agency, the Commissioner of Energy and Environmental Protection shall regulate activities in or affecting wetlands or watercourses subject to the following jurisdiction.
A. 
Construction or modification of any dam pursuant to §§ 22a-401 through 22a-411 of the Connecticut General Statutes, as amended.
B. 
Construction, encroachment or placement of any obstruction within stream channel encroachment lines pursuant to §§ 22a-342 through 22a-349a of the Connecticut General Statutes, as amended.
C. 
Diversion of water, including withdrawals of surface or groundwater in excess of 50,000 gallons per day or any piping, culverting, channelization, relocation, damming or other alteration of the location of flow of any surface waters of the state where the tributary watershed area above the point of such alteration is 100 acres or larger, pursuant to §§ 22a-365 through 22a-378a of the Connecticut General Statutes, as amended.
D. 
Discharges into the waters of the state pursuant to § 22a-430 of the Connecticut General Statutes, as amended.
E. 
Discharge of fill or dredged materials into the wetlands and watercourses of the state pursuant to Section 401 of the Federal Clean Water Act, as amended, for activities regulated by the US Army Corps of Engineers under Section 404 of the Federal Clean Water Act.
F. 
Any dredging or any erection, placement, retention or maintenance of any structure, fill, obstruction or encroachment, state agency, which activity is regulated under §§ 22a-28 to 22a-35, inclusive, as amended, or §§ 22a-359b to 22a 363f, inclusive, as amended shall not require any permit or approval under §§ 22a-36 to 22a-45, inclusive, as amended of the Connecticut General Statutes.
The Commissioner of Environmental Protection shall have exclusive jurisdiction over activities authorized under a dam repair or removal order issued by the Commissioner of Energy and Environmental Protection under § 22a-402 of the Connecticut General Statutes or a permit issued by the Commissioner of Energy and Environmental Protection under § 22a-403 of the Connecticut General Statutes. Any person receiving such dam repair or removal order or dam permit shall not be required to obtain a permit from the Agency for any action necessary to comply with said dam order or to carry out the activities authorized by said permit.