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1111441d.
TYPICAL GATE VALVE 4 VALVE SOX
NOTE: ALL GATE VALVES TO BE RESILLIANCE
HEATED PER CARMEL UTILITIES
SPECIFICATIONS
Granular
boekhll req'd
around base-
barrel
Grain
cent. bli t
Cont. pod 7�
Hydrant yioll meet bed fit eada end
City of Carmel Specifirmilcm t.
•' Ca+c edtar M
not in paved aria
C-t valve box
Go oats ralw (may j
Ibd• braw
HYDRANT DETAIL
.
BEDDING AND BACKFiLL
PIPE AND FITTINGS
The pipe used for construction of the water mains shall be ductile iron. All
If the water main is constructed within 5 feet of a paved area, the pipe shall
or coarse sands and gravels
ductile iron pipe shall be centrifugally cast and shall be made in accordance
be
be bedded. Bedding shall be either crushed stone
extend from 4 inches below the pipe invert to halfway up the pipe barrel-
with ANSI A21.51 (AWWA standard C151), latest revision. Pipe shall
with
and
by hand tamping or by
The bedding shall be compact the
cemenbnortar lined per AWWA C104.
material in. The trench shall be backfilled with crushed stone or coarse sands
All pipe shall be push -on joint type with a minimum pressure class of 350.
rating of 250.
and gravel.
All other trenches can be badkfilled with suitable excavated materials. Non -
I Fittings shall be mechanical joint with a minimum pressure
suitable backfll materials include rocks over 3 inches in size, concrete, frozen
Lubricants used shall be non -toxic and shall not support the growth of bacteria
material, roots and rubbish.
and shall not have a deteriorating effect on the gasket or pipe. No taste or
THRUST BLOCKS AND RESTRAINING JOINTS
odor shall be transmitted in a pipe which has been flushed per AWVVA
Concrete thrust blocks shall be placed between solid ground and all fittings
standards.
(tees, crosses, bends and plugs) to prevent movement. Concrete used for thrust
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blocks shah have a 28 day compression strength of 3000 psi. Restraining
Gaskets shall comply with ANSI Standard A21.11. Push -on joints shall be
p�� � � � where acceptable to the City.
- single rubber- gasket joints. Mechanical joints shall be gasketed and bolted
1.3
joints. Gasket dimensions shall meet the manufacturers standard design
SITE RESTORATION
be
dimension and tolerances. The size and shape shall be such that an adequate
The construction area not located on the owner's property shall
compression force is provided against the spigot and socket after assembly so
restored to pre�onstruction condition following
that a positive seal is provided for all combinations of joints and gaskets.
construction. The trenches shall be restored to original
Gaskets shall be vulcanized natural or vulcanized synthetic rubber.
shape and grade by backfilling with excavated materials.
Grassed areas shall be seeded and mulched. The seed applied shall be
L HYDRANTS AND VALVES
Two 2 -1/2 irmch hose
high quality with a mix of approximately 65%
10% Red Top.
Fire hydrants shall be 6 -inch size witty 6-inch connection.
Kentucky Bluegrass, 25% Perennial Rye Grass, and
nozzles and a 4-1/2 inch pumper nozzle shall be provided each threaded to
thoroughly flushed then disinfected using a
meet the local Fire Department requirements. All nozzle caps shah be
HYDROSTATIC TESTING
chained to the hydrant. Hydrant shall be break type as manufactured by Mueller
After installation of the pipe, fittings and valves, the
Company or equal.
water main shall be subjected to a hydrostatic pressure
test. The pressure test shall be a minimum duration of two
Where indicated provide 6-inch gate valve with valve box. Gate valve shaft be
hours but not more than six hours. The system shall be
at the far end of 44-50 parts per million (ppm). The chlorine solution shall
rated for 200 psi pressure. The valve shall be double disc type, iron body.
tested at a pressure of 150 psi. The provisions as set forth in AWWA C-600,
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bronze mounted, conforming to AWWA C500. Valve box shall be cast iron with
$action 4 "1 be followed. The test shall be
be at least 10 ppm.
cover marked "WATER ". and should be painted traffic yellow.
conducted by first slowly filling the pipe system
thoroughly flushed. Flushing shall be adequate so that the water quality shall
with water. Air shall be expelled form the line using corporation cocks
be shown by testing to be comparable to the water It the existing water system.
EXCAVATION FOR WATER MAINS
Installed by the Contractor at all high points. After the sit is expelled, the
Minimum trench width shall be 1.25 times the pipe O.D. plus 12 irmches.
corporation cocks shall be
sent to 'the Indiana Department of Health for
All water mains shall have a minimum earth cover of 54 inches over the top
closed and the test assure applied. The test
shall be adjusted based upon the relative elevation of time test gauge to
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of the pipe. If during the excavation the trench is excavated below the elevp elevation
the trench excavated below the pipe laying
pressure
the lowest elevation of the line.
hour intervals shall be required prior to the line being put in service. When
laying elevation, the part of
shall be corrected with approved material which is thoroughly COMPIllctsd
Dig dw pressure testing, any pipe, fittings, or valves which are
If the soil at the bottom of the trench is riot uniformly good and stone, hard
visible shall be viewed carefully for any damage
or defect. Any damaged or defected material shall be replaced and the
acceptable, the chlorinat" procedure shall be repeated followed by new
pan, shale or cemented gravdi are exposited, the trench shall be excavated
testing repeated.
below the grade line and balled with tamped selected fill.
Alter completion of the pressure test, leakage shall be
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The Owner shall be responsible for temporary Increased chlorine dosage to
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calculated and compared to the acceptable limit. The amount of leakage is
The Owner shall be responsible for temporary Increased chlorine dosage to
determined by the quantity of water that is added to
the new line at start -up.
the piping system during the pressure testing to
maintain a pressure within 5 psi of the test pressure. The
CONNECTION TO EXISTING LINE d to an existing 164nch water line on 131 st
be connect
acceptable leakage is that calculated with the following formula:
'
The water main shall
at an existing gate valve.
Street east
L = SD P/133,200
WHERE:
SERVICE CONNECTION red waters brass meeting
dose
L = Allowable Leakage (gph)
Corporation Stops "if be grained
stops shall pig -type valve with
S = Length of Pipe Tested (ft)
AWWA Standard C'�• Corporation
The �side shad be threaded
D = Nominal Diameter of Pipe (inches)
rectangular operator.
The sue, shall be a Of the flttrW
P =Average Test Pressure during time Pressure Test (psig)
for direct tap to the main.
M sheu be Mueller Company or
The piping system is acceptable as long as the system leaks does not
p'p'ng y Y leakage
compression coupling -
- "y''' ""
Ford. - -
exceed the calculate allowable limit. The
T K seamless meeting ASTM 13-
be copper tubing. Type
exception to this rule is that all visible leaks shall be repaired regardless of the
The service lino shall le. The tubing shall
be made at a 45 degree ang
leakage amount.
'
88. The tap to the main shall
then be gently beat to the elevation required for the service connection. An
Owner side of the motor. A shut off valve
DISINFECTION
Following testing and prior to placing in service, the water malt shall be
angle valve shah be placed on the
shall be placed on the customer side of the meter • Meters smell be located
be Installed ern the
thoroughly flushed then disinfected using a
inside buildings. BackflOw prevention devices shop
chlorine solution. The chlorine solution can be either a gas-water mixture or a
building side of the water meter.
calcium hypochorite solution. Water used to dilute the chlorine solution shall
be obtained from the water line to which the new line is connected. The
water should be added to the water line at a rate to achieve a chlorine residual
at the far end of 44-50 parts per million (ppm). The chlorine solution shall
remain in the lihe for a minimum of 24 hours. After this period of time, the
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chlorine residual in the line shall be tested at representative locations and
be at least 10 ppm.
After chlorination of the line, the treated water in the new line shall be
thoroughly flushed. Flushing shall be adequate so that the water quality shall
be shown by testing to be comparable to the water It the existing water system.
.
'
Samples of water from the new line shall be collected under the direction of
Utility personnel. These samples will then be
sent to 'the Indiana Department of Health for
bacteriological testing.
At least two sets of successive satisfactory bacteriological samples taken in 24
hour intervals shall be required prior to the line being put in service. When
initial test results are- not acceptable, the line shall be lightly flushed and the
sampling/testing procedures repeated. If the test results are still not
acceptable, the chlorinat" procedure shall be repeated followed by new
samples and tests.
Approved by: I I FAIL: 311-544-3019
Otte -j -� Qsi Sc.k: WIA rob no.:
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