a) Provide spill containment in the H-70 storage
area with a capacity equal to the larger of 110 percent of the
largest drum present or 10 percent of the total volume
b) Spill containment for facilities which store only
one or two drums of H-70 can be individual containers for each
c) Provide a diked containment area for facilities
which store multiple drums of H-70.
Provide ramps for vehicle access.
(2) Provide a coating or liner for concrete
containment areas. Do not allow exposed iron or rebar in the
a) Provide a concrete floor in the regulated areas,
sloped to floor drains which lead to a collection tank.
b) Provide a floor trench drain 18 inches (450 mm)
wide by 6 inches (150 mm) deep by 9 feet (2.7 m) long, covered
with an open stainless steel grate in the H-70 fuel tank
servicing area. The trench is required to contain any
possible H-70 spillage and periodic draining of the H-70
servicing stand. Construct the trench parallel to the wall
separating the storage area from the servicing area. Locate
the servicing stand so the drain spigot from the scrubber is
in-line with the trench drain. A polypropylene or
polyethylene elbow connection directly from the drain spigot
to the trench drain is required.
c) Ensure deluge shower and eyewash units in the
servicing area drain into the containment tank.
d) Ensure industrial sink in the protective
equipment room drains into the containment tank.
e) Equip drains leading to the containment tank with
traps to prevent vapors from contaminating the area.