[Adopted 3-12-1996]
A.
Where such provisions for service connections have been originally
constructed as part of the public sewer construction, the Sewer District
shall locate the connection point and the user shall excavate and
connect to such point, subject to inspection and acceptance of the
Sewer District.
B.
For new connection points where provisions for service connections
have not been originally constructed as part of the public sewer construction,
the Sewer District shall establish the connection point location and
the user shall ensure appropriate connection is made, subject to inspection
and acceptance of the Sewer District.
A.
Any septic tanks, cesspools and similar private wastewater disposal
facilities shall be cleaned of sludge and filled with a suitable material
or excavated and removed or demolished in accordance with accepted
procedures to minimize health risk. Such works shall be covered by
earth, concrete or suitable material to exclude rodents and flies
and to prevent odors and prevent other nuisance conditions. The point
on the privately owned collection system sewer where wastewater is
to be intercepted and diverted to the public system shall be broken
and separated from the private system and shall be permanently plugged.
B.
No sewer shall be covered until after it has been inspected, tested
and accepted by the Town Sewer Department.
A.
In all buildings in which any building sewer is too low to permit
gravity flow to the public sewer, sanitary sewage carried by such
sewer shall be lifted by a grinder pump unit and discharged to the
public sanitary sewer at the expense of the owner.
B.
When a control manhole is required, the manhole will be located such
that no other direct or indirect connections shall exist between the
control manhole and the connection point.
C.
All plumbing work performed and materials used shall conform to the
Town of Somerset and New York State Building Codes.
A.
Gravity sewers shall be PVC nonpressure pipe, labeled SDR35, ASTM
Specification D3034. All joints shall be compression-type joints with
Neoprene or rubber, circular gaskets. The gasket shall be factory
installed and locked in such that no displacement occurs during the
joining of the pipe.
B.
Size, slope, alignment and depth.
(1)
The size, slope and alignment of the gravity sewer shall be subject
to approval of the Sewer District. Grade or slope for various pipe
sizes shall not be less than the following:
(2)
The depth shall be sufficient to afford protection from freezing
and against physical damage (normally four-foot minimum depth). The
gravity sewer shall be laid at a uniform grade. The line shall be
straight or laid with properly curved pipe and fittings. Changes in
alignment direction greater than 45° shall be provided with cleanouts
accessible for cleaning.
C.
The gravity sewer shall have sufficient horizontal and vertical separation
from the water service or any potable waterline.
D.
All gravity sewers shall be bedded to six inches above the pipe barrel
and six inches below. The bedding material shall be stone of a maximum
dimension of one inch and shall be placed to eliminate voids between
the pipe and the disturbed soil. If the soil conditions appear unstable,
the Sewer District may require additional methods of support for the
pipe.
E.
All gravity sewers shall be tested for leakage after installation.
The test shall be conducted on all joints that would be exposed to
infiltration of groundwater, surface water or other extraneous sources
of nonpolluted waters. The test shall be conducted from the trap and
vent to the building plumbing system. The test shall be conducted
by the Town Sewer Department. If an air test is required, the sewers
shall be charged with air to pressure of four pounds per square inch.
The sewer shall show a loss of no greater than 0.5 pounds per square
inch over a ten-minute period.
F.
In certain cases where a gravity sewer is being replaced, the Sewer
District may allow the use of high-density polyethylene pipe, by placing
the polyethylene pipe inside the existing sewer. In this situation,
the pipe shall have a minimum SDR of 18 and shall conform to all applicable
ASTM specifications for this material. The joints shall be thermal
butt fused between lengths of polyethylene pipe with the inner bead
removed. Joints between the polyethylene and other pipe materials
or the trap and vent shall be by a coupling acceptable to the Sewer
District. Express permission of the Sewer District shall be obtained
prior to proceeding with this type of installation. Application for
permission shall be accomplished by a plan and a list of materials,
sizes and depths.
A.
Installation of grinder pumps.
(1)
The dimensions of the grinder pump basin are two feet in diameter
by six feet high. The excavation should be kept as small as possible
while allowing enough room for installation.
(2)
The grinder pump basin should be aligned so that the connections
for the incoming sewer line as well as the discharge line (polyethylene
tubing) are facing in proper directions.
(3)
The top of the grinder pump basin should be kept two inches above
the adjacent ground level with the ground graded up to it.
(4)
The grinder pump must be set on a minimum of three inches of sand
(for leveling the unit as well as for protection of the base).
(5)
A minimum of 17 cubic feet of concrete must be poured around the
base of the grinder pump basin prior to backfilling. This concrete
is necessary to prevent the unit from floating when the groundwater
level rises. Concrete shall be confined to the area directly adjacent
to the basin and not allowed to spread out.
B.
Installation of polyethylene tubing.
(1)
Polyethylene tubing is used to transport the sewage from the grinder
pump to the main sewer at the street. For outside grinder pump units,
it is connected directly to the discharge pipe and the unit. For inside
grinder pump units, it is connected to the PVC piping which is installed
through the basement wall. At the street, it is connected to a redundant
check valve.
(2)
When possible, the polyethylene tubing shall be installed in one
continuous length. If necessary, splices are to be made with compression
fittings manufactured by Mueller.
(3)
The polyethylene tubing shall be installed deep enough so that there
is a minimum of four feet of earth cover over it for its entire length.
(4)
The polyethylene tubing is not to be bent in a radius smaller than
55 inches.
(5)
Detectable tape shall be installed eight inches directly above the
polyethylene tubing for its entire length.
(6)
Backfilling must be done with earth that is free of stones, rocks,
sharp objects, debris, etc. The backfill shall be carefully tamped
as it is being placed to prevent settlement.
C.
Materials.
(1)
Polyethylene discharge tubing shall be one-and-one-half-inch nominal
copper pipe size water service tubing, Class 160, SDR-9, conforming
to ASTM 2737 specifications. The connections to the grinder pump unit
and redundant check valve shall be made utilizing Mueller compression
fittings and bronze nipples. All other fittings utilized in the installation
shall also be bronze.
(2)
Detectable tape shall be Terra-Tape D as manufactured by the Giffolyln
Company of Houston, Texas, or equal; three inches wide; orange-colored
and continuously imprinted with the warning "Caution - Sewer Line
Buried Below" in black letters. (See Figure 2.)[1]
[1]
Editor's Note: Figure 2 is included as an attachment
to this chapter.
(3)
Curb stop valve and box shall be installed by the Town of Somerset
Sewer Department and be located at the highway boundary.
(4)
Redundant check valve shall be obtained from the Town of Somerset
Sewer Department and be located at the curb stop on the grinder pump
unit side.
(5)
Grinder pump units shall be obtained from the Town of Somerset Sewer
Department.
D.
Electrical installation.
(1)
The electrical load center shall be NEMA No. 1 surface-mounted, two-hundred-fifty-volt,
thirty-amp, single-phase, neutral-buss, galvanized steel with gray
baked-enamel finish. Feeders from main panel shall be No. 12, including
three insulated conductors and one equipment ground. The grinder pump
shall be protected by a twenty-amp, double-pole circuit breaker using
No. 12 three wire and equipment ground.
(2)
Emergency-generator enclosure. The emergency-generator enclosure
NEMA 3R shall be mounted as described on the grinder-pump control-panel
schematic.[2] It shall consist of 16-gauge, galvanized steel with gray
baked-enamel finish. The minimum size shall be eight inches by six
inches by four inches deep with provisions for a padlock. The plug
and receptacle for the emergency-generator connection shall be twist-locked,
twenty-amp, two-hundred-fifty-volt, three-pole and NEMA Configuration
L10-20. The AC-DC transfer switch shall consist of a double-throw
switch, two-hundred-forty-volt AC, three-pole, NEMA Type 3R.
[2]
Editor's Note: See Figure 3, which is included as an
attachment to this chapter.
(3)
The grinder pump control panel shall be mounted (see Figure 3) on
the same side of building as the grinder pump is installed. Wiring
from the emergency-generator enclosure to the grinder pump shall consist
of four No. 12 THHN (power conductors) and 12 No. 14 THHN color-coded
control wires into one-inch Schedule 40 PVC conduit.
(4)
Inside alarm panel. The inside alarm annunciator shall be one-hundred-ten-volt
connected to the No. 6 and natural terminals in the grinder pump control
panel. This will operate in conjunction with the red light on the
outside of the control panel. It shall be mounted on a four-inch round
box cover at the best audible location inside the building. Feed wiring
for the inside annunciator will come from the emergency-generator
enclosure where it enters into the building.
|
NOTE: Waterproofing material provided with the unit must be
applied to conduit from inside of the pump unit reservoir. All electrical
work performed and materials used shall be in accordance with the
National Electrical Code. All installations require the Board of Fire
Underwriters inspection.
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[Amended 5-11-2010 by L.L. No. 1-2010; 10-11-2011 by L.L. No. 6-2011]
A.
The rate schedule is established so that sufficient revenue is collected
to meet the debts presently incurred or to be incurred by the Somerset-Barker
Sewer District. The rate schedule, as amended from time to time by
resolution of the Town Board, is on file with the Town Clerk.
B.
Billing:
(1)
The indirect benefit charges, the direct benefit charges and unit
charges shall be billed via the county and Town tax bill and shall
be payable herewith.
(2)
The user charges shall be billed quarterly via the Town of Somerset
billing system and shall be payable within 30 days of the date of
billing. Past-due amounts shall receive a surcharge of 10% added to
the following quarterly bill and every past-due unpaid balance thereafter.
Any unpaid user charges on or before October 1 shall be assessed against
the user's property on the next current Town tax bill.
(3)
All rates shall be reviewed annually. User charges shall provide
sufficient funds for continued operation and maintenance of the publicly
owned treatment works. Unexpended revenue shall be transferred to
the budget established for the following year.
C.
An indirect benefit charge shall be levied on all parcels within
the Sewer District which do not have sanitary sewers directly available
for use.
D.
The direct benefit charge shall be levied on all parcels within the
Sewer District which have sanitary sewers directly available for use,
whether or not the owner has made connection to the sewer.
E.
The unit charge and user charge shall be levied against property
owners that have made connection to the sewer.
F.
The first repair of a vent pipe in the Town-owned portion of a sewer
service connection shall be free per homeowner per parcel. Subsequent
repairs shall be $50.
