Project Name
Project Number
UEPH Complex
Statement of Work
26 November 2001
installed to supply the fuel oil-fired heating equipment. Provide a complete fuel oil storage and
distribution system designed in accordance with local codes, installation requirements, NFPA
30, and NFPA 31, whichever are more stringent. Tank size shall be determined using the
ASHRAE Degree Day Method using the degree-days for the coldest 30-day period for the site.
4-17.1
Tank storage. Each facility shall be provided with a separate fuel oil storage tank.
Fuel oil storage tanks may be located underground or aboveground. Storage tanks shall be
placed in a location suitable for filling from a curbside delivery truck. Above ground tanks shall
be visually screened by a wall. Fuel oil tanks shall be located in accordance with local codes,
and shall be installed a minimum of 0.3 m [1 ft] from the edge of the tank shell to the nearest
outside wall of any building or basement or from the nearest adjoining property line. Where
tanks are located adjacent to exterior walls or other surfaces requiring periodic painting or other
maintenance/repair requirements, a minimum clearance of 1m [3ft] from the edge of the tank is
preferred. Underground tanks shall be located such that loads supported by building
foundations cannot be transferred to the tank. Proposed tank location shall be clearly indicated
in the design submittal.
4-17.1.1 Aboveground tanks. Fuel oil storage tanks shall be aboveground, double wall type
with leak detection monitoring. Tank containment shall comply with applicable NFPA, EPA, and
local code requirements. Provide concrete pads as required by code or as recommended by the
tank manufacturer.
4-17.1.2 Underground tanks. Fuel oil storage tanks installed below grade shall be double-
walled type constructed using fiberglass or steel, and installed in accordance with the
manufacturer's recommendations. The top of the tank shall be at least 0.6 m [2 ft] below
finished grade. Fiberglass tanks shall be constructed in accordance with UL 1316. Steel tanks
shall be Type II, constructed in accordance with UL 58, with an STI-P3 coating and guarantee
except that the cathodic protection system shall be based on protecting 5 percent of the tank's
metal surface. Tanks shall be provided with the necessary fill, vent, gauge, hatch, and suction
connections.
4-17.2
Fuel oil piping. Underground fuel oil piping shall be of double-wall construction,
installed without traps or sags. Outer, secondary containment pipe shall be non-metallic. Above
ground piping shall be single-wall metallic pipe. Gate valves shall not be used in fuel oil piping
systems. A replaceable filter shall be provided upstream of the fuel oil pump. Pipe connectors
shall be in accordance with UL 567.
4-17.3
Leak detection system. A continuous surveillance leak detection system suitable for
operation in an NFPA 70, Class 1, Division 1, Group D environment shall be provided to monitor
the leak containment space between the interior and exterior walls of double-wall pipe and
tanks. The system shall detect leakage into the containment space electronically or by
monitoring interstitial pressure or liquid level variations. Liquids used in the containment space
for steel tanks shall have a corrosion inhibitor. Liquids subject to freezing conditions shall
contain an antifreeze solution. The leak detection system shall be compatible with the piping
and tank furnished. Instructions and equipment required for calibration of the leak detection
system and manufacturer's recommended calibration maintenance schedule shall be provided.
4-17.4
Special requirements. [Research local requirements for fuel oil systems installation
and either add or delete items from this sub-paragraph.]
4-17.4.1 Spill containment fill. Underground tank fill connection shall be provided in a spill
container of 11.4 L [3 GAL] capacity minimum. Contained spills shall be drained into the
storage tank by means of a quick-acting drain valve.
4-17.4.2 Overfill prevention valve. The overfill prevention valve shall be placed within the tank
interior and be an integral part of the fill tube. The valve shall be a float actuated shut-off valve.
SOW-102
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