Complete Compiled Specification.pdf - Peck Ormsby Construction

PART 3 - EXECUTION
3.1 Examination: Examine areas and conditions under which potable water system's materials and
products are to be installed. Do not proceed with work until unsatisfactory conditions have been
corrected in manner acceptable to Installer.
3.2 EARTHWORK
A. Excavation trenching, and backfilling are specified in Division 2 Section "Earth Moving."
3.3 INSTALLATION
A. Identification: During back-filling/top-soiling of underground fire water piping systems, install
continuous underground-type plastic line marker, located directly over buried line at 6" to 8"
below finished grade. If pvc pipe is used, install a tracer wire along the top of the pipe, secured
with tape, and extending to fire hydrants and valves.
B. Pipe and pipe fittings:
1. Pipe: Install in accordance with AWWA C600 "Standard for Installation of Ductile-Iron
Water Mains and Their Appurtenances".
2. Depth of Cover: Provide minimum depth of cover over underground piping in accordance
with NFPA 24, Figure A-8-11 "Recommended Depth of Cover Above Top of Underground
Yard Mains" or 60" below finish grade, whichever is greater.
C. Piping Specialties:
1. Pipe Line Strainers: Install as indicated, with valved blowoff piped to drain.
D. Meters: Install as indicated with shutoff valve on either side of meter and valved bypass full line
size.
E. Valves: Provide post indicator for control valves.
1. Shutoff Valves: Install shutoff valve ahead of each hydrant.
F. Hydrants: Install fire hydrants in accordance with AWWA M17 "Installation, Operation, and
Maintenance of Fire Hydrants".
1. Location: Install fire hydrants minimum of 40'-0" from building outside wall, as indicated,
or if not shown.
2. Face hydrants towards drive.
3. Place hydrants so that base of hydrant is even to 6-inches above adjacent top back of
curb.
3.4 PIPING APPLICATIONS
A. Pipe:
SEGO LILY ELEMENTARY SCHOOL CLASSROOM ADDITION MARCH 2, 2009
WATER UTILITY PIPING 02008 - 5