This section contains specific requirements
governing this installation of sanitary sewer house or building connections
and certain regulations governing the use of the Town's sanitary sewer
system once service has been initiated.
The size, slope, alignment, and materials of construction of a house connection and the methods to be used in excavating, placing pipes, jointing, testing and backfilling the trench, shall all conform to the requirements of this Article III and to the Building and Plumbing Codes or other applicable rules and regulations of the Town. In the absence of applicable provisions, or in amplification thereof, the materials and procedures set forth in appropriate specifications of the American Standard Testing and Materials (ASTM) and the Water Pollution Control Federation (WPCF) Manual of Practice 9 shall apply. In cases of conflicts, the more stringent requirement shall apply.
The following are requirements for pipe and
joints:
A.
PVC gravity sewer pipe conforming to ASTM D-3034 and
shall be SDR-35 with watertight rubber-gasketed joints conforming
to ASTM D-1896.
B.
PVC gravity sewer pipe conforming to ASTM D-1785 and
which shall be Schedule 40 with solvent weld joints.
C.
Extra heavy cast iron soil pipe conforming to ASTM
A-74 with rubber-gasketed joints conforming to ASTM C-564.
D.
All fittings shall be compatible with the pipe material.
E.
All joints shall be watertight. Cement joints will
not be allowed.
The private connection (house connection) shall
be installed at a uniform slope but at slopes not less than 1/4 inch
per lineal foot, which slope may be reduced to not less than 1/8 inch
per lineal foot where conditions necessitate and are approved by the
Town.
Whenever possible, the private sewer connection
(house connection) shall be brought to the building below the basement
cellar floor. Private connections shall give a minimum cover of two
feet, six inches unless otherwise approved by the Town. If rock or
other conditions necessitate a covering of less than two feet, ductile
iron pipe or extra-heavy cast iron soil pipe shall be used. Under
driveways and parking areas where the cover over the pipe is less
than three feet, six inches, ductile iron pipe or extra-heavy cast
iron soil pipe shall be used or nonmetallic pipe may be used if encased
in concrete six inches from the top, sides and bottom of the pipe.
All pipe installed under a stream shall be encased in concrete for
a length equal to the width of the streams plus five feet on both
sides of the stream.
All changes in direction of the connection shall
be made with long-radius 1/16 bends, or Y-branch fittings, except
when manholes are installed. Connections between the private connection
and the public connection shall be made at a cleanout installed by
the Town. The connection must be made by the property owner to the
upstream end of the Y-branch installed by the Town as part of the
cleanout. Private connections shall be laid in as straight a line
as possible, with proper fittings and cleanouts. It is recommended
that cleanouts be installed at intervals of not less than 50 feet
for four-inch pipe and not less than 100 feet for larger sizes, and
manholes at intervals of 300 feet. It is further recommended that
cleanouts or manholes be placed at every horizontal change of direction
of 45° or more.
When separate systems of sanitary and storm
drainage are installed on the same property, the private sanitary
connection (house connection) and the private stormwater connection
may be laid side by side in one trench. In NO case shall they be interconnected.
Rainwater leaders, outdoor area drains or any pipe conveying stormwater
or groundwater shall NOT be connected to the private sewer connection.
A private connection installed in fills or unstable
ground shall be of ductile iron or cast iron soil pipe (extra heavy),
except that nonmetallic pipe may be laid upon a concrete pad not less
than four inches thick and 12 inches wide throughout the length of
the trench.
The ends of all private sewer connection pipes
not immediately connected to the Town's lateral are to be securely
closed against the possibility of soil or water or other matter entering
the pipe.
Pipes that formerly went to septic tanks may
be used with the new private sewer connection only when they are found
to be cast iron and, on examination and test, to conform in all respects
to the requirements herein governing new private sewer connections.
The Town will notify the owner of what changes are required, to conform
with the current requirement set forth in this chapter.
Grease, oil and sand interceptors shall be provided
when, in the judgment of the Town, they are necessary for the proper
handling of liquid wastes containing grease, flammable wastes, sand,
and other ingredients harmful to the private sewer connection, public
sewer connections, sewer main, pumping station, or sewage treatment
plant or processes. In all cases, restaurants must install grease
traps and regularly maintain same.
All connections between dissimilar sizes and
types of pipe shall be made with a manufactured fitting specifically
intended for the type of connection to be made. The connection shall
be watertight.
No sewer connection shall be covered until it
has been inspected, tested, and provided herein, and approved. If
any part of sewer connection is covered before so being inspected,
tested and accepted, it shall be uncovered for inspection and tested
at the cost and expense of the owner of the improved property. Every
sewer connection shall be tested by filling the same with water, completely,
so that every section shall be tested with not less than a ten-foot
head of water. Water shall be kept in the sewer connection for 15
minutes before inspection starts, and no leakage shall be observed
at the time of inspection. Upon approval of the test of a sewer connection
by the Town's inspector, a certificate of approval will be issued
to the owner of the improved property installing the sewer connection.
The Town's inspector shall observe all testing. All equipment and
material required for testing shall be furnished by the owner of the
improved property to be connected to a sewer. In the event that a
sewer connection does not pass the required test, further tests or
tests shall be made following completion of necessary corrections.
A reinspection fee may be charged by the Town for observation of each
test subsequent to the initial test.
All sewer house connections to the premises
served, whether located in a private right-of-way or in streets, shall
be constructed at the expense of and by the applicants, and shall
be, and remain, the property of the applicants, and shall be maintained
by them in safe operating condition and good repair under penalty
of discontinuance of service by the Town.
