PLUMBING DESIGN MANUAL
FOR DOMICILIARY PROJECTS
DEPARTMENT OF VETERANS AFFAIRS
June 2006
1.
CRITERIA UNIQUE TO VA
1.1
Plumbing design and plumbing seismic design shall only be
indicated on "PL-Series" drawings (see VA Design and Construction
Procedure, "Drawings").
1.2
Piping shall be shown on the same plan as the fixtures being
served. This does not apply for interstitial areas.
1.3
Pipe size shall be indicated on both floor plan and riser diagram.
1.4
Most VA plumbing fixture units are less than that indicated in
standard plumbing codes (see Article, PLUMBING FIXTURE SCHEDULES).
1.5
The following shall be indicated on the plumbing drawings:
A.
Drainage area in square meters (footage) for each roof drain
and totals for building at outside building wall.
B.
Fixture unit count at base of each soil and waste stack and
for each sanitary sewer at outside building wall.
C.
Invert elevations for all sewers at outside building wall.
D.
Centerline elevation for all pressure systems at outside
building wall.
E.
Floor elevation at each level.
1.7
Floor drains shall not be installed in toilet areas unless there
are showers.
1.8
Sub-soil drainage is a plumbing item and shall be indicated on
architectural and plumbing drawings.
1.9
Investigate if credit can be obtained from the public utility
company for water consumed, but not discharged into the sanitary
sewerage system. If so, and adequate pressure is available,
provide meters for these users.
2.
GENERAL
2.1
Design the plumbing system to comply with this criteria, and the
current edition of VA Design and Construction Procedures, VA
Program Guides, and VA Master Specifications. Design shall also
meet the provisions of the current edition of the National
Standard Plumbing Code as published by the National Association of
Plumbing-Heating-Cooling Contractors, and the National Fire Codes
as published by the National Fire Protection Association (NFPA),
unless VA criteria indicates otherwise. If state or local codes
are more stringent than above requirements, discuss with VA
Contracting Officer.
3
Previous Page
