§ 205-4. Installation of house laterals.

All new house laterals or other connections to sewers shall be made under the supervision of, and shall be inspected by the Engineering Department.

A. 

Materials.

(1) 

Pipe for house laterals shall be one of the following from a point five feet outside the building to the sewer:

(a) 

Six-inch tile sewer pipe, A.S.T.M. Designation C 13, with premium type factory-made polyvinyl joints, A.S.T.M. C-425-64T, approved by the Engineering Department.

(b) 

Four-inch extra-heavy cast-iron soil pipe, A.S.T.M. A74-42, with lead or leadite joints, or approved compression type "O-Ring" joints.

(c) 

Four-inch asbestos-cement building sewer pipe, Class 1500.

(2) 

If any portion of the lateral crosses any existing or future public or private road or street, that portion shall be one of the following:

(a) 

Six-inch extra-strength tile sewer pipe, A.S.T.M. Designation C 200, with premium type factory-made polyvinyl joints, A.S.T.M. - C425-64T, approved by the Engineering Department.

(b) 

Six-inch extra-heavy cast-iron soil pipe, A.S.T.M. A74-42, with lead or leadite joints, or approved compression type "O-Ring" joints.

(c) 

Six-inch asbestos cement pipe, Class 2400.

B. 

Construction.

(1) 

Manner of installation.

[Amended 9-23-1968 by L.L. No. 22-1968]

(a) 

The plumbing in the building shall be installed in such a manner that the main building drain will pass through the basement wall above the basement floor at such a point as to give the lateral a proper grade and proper cover. No basement floor drains shall be connected in any way.

(b) 

If plumbing fixtures are installed in the basement or at any point below the first floor or the finished grade at the building, whichever is higher, a separate waste line shall be installed for each fixture and a manual gate valve shall be installed in each line, which gate valve shall be kept closed except when the fixture is in use. Plumbing fixtures installed below the house lateral shall be equipped with proper pumps with the necessary check valves, as directed by the Engineering Department.

(c) 

In certain areas subject to flooding and/or sewer backup, as designated by the Engineering Department, or where requested or required by other regulating agencies, no plumbing fixtures other than laundry tubs below the first floor or the finished grade at the building, whichever is higher, shall be connected to the house lateral by gravity. If laundry tubs are connected by gravity, a manual gate valve shall be installed in the waste line from the tubs, which gate valve shall be kept closed except when the tubs are in use. Also, no fixtures, below the first floor or the finished grade at the building, whichever is higher, shall be connected to the house lateral by gravity in any multiple dwelling [two or more families] having living quarters below finished grade at the building regardless of the location of the building; in such cases these fixtures shall be equipped with proper pumps with the necessary check valves, as directed by the Engineering Department.

[Amended 8-9-1971 by L.L. No. 15-1971]

(d) 

In cases of unusual construction where the above requirements are impractical, these requirements may be modified at the discretion of the Town Engineer.

(2) 

Laterals shall be installed carefully to grade with tight joints. Laterals shall be installed with a slope of at least 1/4 inch per foot unless special permission is obtained from the Engineering Department.

(3) 

The trench shall be excavated so as to meet the sewer at the Y-branch. The material excavated from the trench shall be so placed as to not obstruct the street and so as to cause the least inconvenience to the public. Proper barriers and lights shall be placed around the work.

(4) 

In laying pipe, the trench shall be excavated to a depth at least four inches below the grade of the lateral. The trench shall be brought up to grade with four inches minimum compacted cushion of bank-run gravel or other similar material under the pipe. Said compacted material shall be well graduated, contain no stones over 3/4 inch and shall be satisfactory to the Engineering Department. Pipe shall be bedded carefully on the compacted material so that it does not ride on bells or joints. Backfill shall be by hand, free from stones, to a point 12 inches above top of pipe.

(5) 

The ends of all house laterals not immediately connected with house plumbing shall be securely closed with a watertight stopper.

(6) 

If any portion of the lateral crosses any existing or future public or private road, it shall have a minimum cover of four feet. If such cover cannot be obtained, pipe shall be encased with six inches of concrete. Backfill above pipe shall be in accordance with requirements of the appropriate highway authorities.

(7) 

The Engineering Department will designate the position of the Y-branch in the street (or existing lateral under the street) as shown by the records on file, but the district will not be responsible for any errors in such locations.

(8) 

The cover of the Y-branch (or existing lateral) shall be carefully removed so as to not injure the pipe or allow pieces of the cover to get into the sewer. The first length of pipe attached to the Y-branch shall be curved and set so as to give a good fall into the sewer.

(9) 

Where Y-branches are not available, connection shall be by means of a factory made saddle, approved by the Engineering Department. The saddle and all necessary fittings and materials shall be furnished by the owner and the owner shall perform all excavation, backfill and other associated work. The actual installation of the saddle, including cutting into the sewer line, shall be performed by the Engineering Department. The owner or his representative shall give all assistance requested.

(10) 

No septic tank shall be connected to any house lateral.

(11) 

Regardless of whether or not any portion of the house lateral was installed by the district, the owner shall maintain, at his own expense, the entire house lateral from the house to the main sewer in the street, including any portion which may be located in or under the street.