5.19 Alterations in
Fuel Oil Systems
Fuel Oil Piping. Fuel oil piping systems shall be double-
Existing Buildings and
wall containment pipe (pipe-in-pipe) when indoors,
Historic Structures
outdoors, or buried, and shall be Schedule 40 black steel
or black iron piping. Fittings shall be of the same metal
grade as the pipe material. Valves shall be bronze, steel, or
The goal of alteration projects is to meet the same
iron and shall be screwed, welded, flanged or grooved.
standards described in this document for new projects.
Duplex fuel-oil pumps with basket strainers and exterior
Equipment/systems that are beyond their useful service
enclosures shall be used for pumping fuel oil to fuel
lives must be demolished and new systems designed
burning equipment.
to meet the current usage of the facility. Renovation
Underground Fuel Oil Storage Tanks (UST).
and rehabilitation designs must satisfy the immediate
Underground fuel oil storage tanks (UST) shall be of
occupancy needs and anticipate additional future
double-wall non-metallic construction, or contained in
changes. Remodeling shall make building systems
lined vaults to prevent environmental contamination.
become more flexible, not less. Parameters of reuse
Tanks shall be sized for actual storage volume for
and disruption of service must be clearly specified in
sufficient capacity to provide a minimum of 48-hours of
construction documents.
system operation under emergency conditions (72-hours
Alteration projects can occur on three basic scales:
for remote locations such as border stations). A monitored
refurbishment of an area within a building, such as a floor
and alarmed liquid and vapor leak detection system shall
or a suite; major renovation of an entire structure; and
be provided in interstitial space of underground tanks,
up-grade/restoration of historic structures.
above ground day-tanks, and piping. The installation
must comply with local, State and Federal requirements,
In the first instance, refurbishment of an area within a
as well as EPA 40, CFR 280 and 281.
building, the aim shall be to satisfy the new requirements
within the parameters and constraints of the existing
systems. The smaller the area in comparison to the overall
building, the fewer changes to existing systems shall be
attempted.
In the second case, major renovation of an entire
structure, the engineer has the opportunity to design
major upgrades into the mechanical, electrical and
communications systems. The mechanical services can
166 F A C I L I T I E S S T A N D A R D S
FOR THE
PUBLIC
BUILDINGS
SERVICE
5.18 Plumbing Systems
Revised March 2005 PBS-P100
Previous Page
