No person shall install, construct, repair, alter or remove any sewer or building sewer connected to or with or discharging directly to or into any public sewer, regardless of whether said work is located in a public street or in public or private land, unless he holds an appropriate license issued by the State of Connecticut. Any such person shall furnish the surety bond and insurance required by §§ 130-41 and 130-42 hereof.
The following may, as indicated, construct, repair, alter or remove sewers, subject to supervision and approval by the Water Pollution Control Authority:
A. 
Regular forces of a contractor employed by the Town, operating under orders of the Water Pollution Control Authority and in the performance of work for said Town.
B. 
Regular forces of the Town and/or the State Highway Department operating under and subject to permit for the particular job to be issued by said Water Pollution Control Authority or its agent and while engaged in the regular work and operations of said Town or State Highway Department.
C. 
Regular forces of any public utility company or corporation authorized by state law to construct, maintain, and operate pipes or ducts within public highways within said Town, while engaged in work incidental to the regular structures of said utility company and operating under and subject to the conditions of a permit for a particular job issued by the Water Pollution Control Authority.
D. 
Any person, firm, or corporation which shall have been licensed under this article by the Town to perform work of the type described herein during the period provided in such license and when operating under and subject to the conditions of a permit for a particular job issued by the Water Pollution Control Authority.
The limitations as to persons who may construct, alter or repair building drains and building sewers as provided in § 130-32 shall not restrict the usual work of plumbers or others when operating in accordance with State Plumbing and Building Codes and when they are working on pipes within or not more than 10 feet outside the walls of a building or similar structure, provided that no plumber or other person shall make any connection to a public sewer of said Town without a permit therefor, even if said sewer is located under or immediately adjacent to any building or similar structure, and provided that all fixtures within said building or structure and all use made of them shall conform to the requirements of these rules and regulations as to what may and may not be permitted to be discharged into public sewers.
Nothing herein contained shall prohibit the owner of a building or structure from personally installing the building sewer on his own property (excluding therefrom any land laid out or dedicated as a public way) under the conditions herein specified:
A. 
Approval of plans and final approval by the Water Pollution Control Authority or its agent shall be obtained.
B. 
A permit shall be secured as herein provided before the work is performed.
C. 
Permit fees shall be paid and application made for inspections.
D. 
All work shall be performed by the owner himself in accordance with the provisions of these rules and regulations.
E. 
Compliance with applicable state statutes and rules and regulations pursuant thereto.