REMEDIAL ACTION WORK PLAN OPERABLE UNIT 2, LANDFILL ...

3.2.2
3.2.3
3.2.4
3.2.5
3.2.6
3.2.1.3 Where water pipe is required to be installed
structures, the pipe is to be sleeved as required
The maximum allowable deflection from a straight line is 5
recommended by the manufacturer.
withh 3 feet of existing
for roads.
degrees, unless otherwise
Carefi.dly lower pipe and accessories into the trench with appropriate equipment. Do
not drop water line materials into the trench. Avoid abrasion of the pipe coating.
Keep water out of the trench until joints are complete. Close open ends of pipe
when work is not in progress.
Install pipe in conformance with the manufacturer’s recommendations.
Form and place concrete thrust blocks at each elbow or change of direction of pipe
main.
Install trace wire continuous over top of non-ferrous pipe below finish grade.
3.3 INSTALLATION - VALVES, VALVE BOXES AND HYDRANTS
3.3.1
3.3.2
3.3.3
3.3.4
3.3.5
Set valves on solid bearing.
Center and plumb valve box over valve. Set box cover flush with finished grade.
Set hydrants plumb: Locate pumper nozzle perpendicular to and facing roadway.
Set hydrants to grade, with nozzles at least 18 inches above ground, and the
operating nut not more than 48 inches above ground. Hydrants designated as low
profile will have the top of the hydrant not more than 24 inches above ground.
Set the hydrant on a slab of concrete at least 4 inches thick and 15 inches square.
Place at least 7 cubic feet of gravel around and beneath the waste opening.
3.4 FIELD QUALITY CONTROL
3.4.1 Hydrostatic Pressure Test
“ After pipe has been installed, subject it to any valved section thereof to a
pressure of one and one-half times the operating pressure or 50 psig, whichever
is greater.
● The manufacturer’s recommended minimum curing time will be allowed before
commencing hydrostatic pressure test.
SJM-14-96\SACrERC\FrORDOU2\02660 02660-7 Water Lines