SANITARY DESIGN MANUAL
FOR HOSPITAL PROJECTS
DEPARTMENT OF VETERANS AFFAIRS
June 2006
1.
CRITERIA UNIQUE TO VA:
1.1
Sanitary design shall only be indicated on "CU-Series" drawings
(see VA Design and Construction Procedures, "Drawings").
1.2
Design of building foundation drains is the responsibility of the
Architect and details shall not be shown on Sanitary ("CU-Series")
drawings. However, pipe design from low point of foundation
drainage system to storm sewerage system is the responsibility of
the Sanitary Engineer.
2.
GENERAL:
2.1
Design the sanitary systems to comply with this criteria, and the
current edition of VA Design and Construction Procedures and VA
Master Specifications.
2.2
Show outside water, sewerage, and gas systems on one tracing.
2.3
Indicate estimated quantity, in cubic meters (yards), of rock
excavation for sewers, and water and gas lines on drawings. Only
rock that cannot be removed by shovel or trenching machine shall
be shown.
2.4
Indicate by note on drawings the amount of earthcover required
over water, sewer, and gas lines. Minimum cover under traffic
areas shall be one meter (three feet). Top of potable water and
gas lines shall be at least 300 mm (one foot) below frost
penetration. Where practical, top of sewers shall be at least 300
mm (one foot) below frost penetration. Where such depth below is
not practical, provide supporting foundations to such depth and
securely fasten sewer.
2.5
Provide drawings at the same scale as required for Landscape
Architectural design ("GS-Series") drawings.
2.6
Do not install more than one utility in the same trench.
2.7
Maintain a horizontal distance of at least 1.5 m (five feet)
between parallel sewer and water lines.
3.
CATHODIC PROTECTION:
Submit a cathodic protection analysis with recommendations at the First
Review when ferrous piping, tanks, and conduit are to be installed in
contact with the soil. Unless a new site is involved, contact with the
VA Medical Center's engineering personnel is adequate. For a new site,
contact the previous owner and owners of adjacent property.
1
Previous Page
