in the tank excavation prior to using borrow material] [disposed of in the
area designated on the drawings] [disposed of off-site] [_____]. Excavated
material that is regulated by the state as a hazardous waste [which is
visibly stained] [for which real time vapor monitoring instrument readings
exceed [_____] for volatile and possibly semi-volatile hydrocarbons
depending on the performance criteria for the field screening method] [and]
[which has an obvious petroleum odor] [or as required by the State of
[_____] or implementing agency] shall be considered contaminated and shall
be [stockpiled if the site is a RCRA-designated CAMU] [placed in containers
such as drums, roll-offs or dumpsters] for sampling in accordance with
paragraph Stockpiled Material Sampling. Uncontaminated soil shall be
stockpiled separately from the contaminated soil, a safe distance away
from, but adjacent to, the excavation. [Allowable stockpiles of
contaminated soil shall be placed on an impermeable geomembrane a minimum
of 3 layers, each [0.152] [0.762] [_____] mm [6] [30] [_____] mils thick,
and covered with a [0.152] [0.254] [_____] mm [6] [10] [_____] mils sheet
of geomembrane [as detailed on the drawings] [as specified]. The
geomembrane shall be placed to prevent the stockpiled soil from coming into
contact with surface water run-off.] The [geomembrane] [container] cover
shall prevent rain or surface water from coming into contact with the
contaminated soil, as well as limit the escape of the volatile constituents
in the [container] [stockpile].
3.8
REMOVAL OF PIPING, ANCILLARY EQUIPMENT, AND TANK
**************************************************************************
NOTE: The state regulators must be consulted by the
designer to determine how the state views tank and
ancillary equipment transportation, disposal and
salvage rights, and what state requirements for
cleaning are applicable. Depending on tank material
and contents, permits and manifests and other
documentation may be required.
**************************************************************************
3.8.1
Piping and Ancillary Equipment
All piping and ancillary equipment shall be disconnected from the tank.
The piping shall be removed [completely (interior and exterior of the
tank)] [to the exterior surface of the tank, where it shall be capped and
abandoned in place] [as shown on the drawings] [or] [as directed by the
Contracting Officer]. All tank ancillary equipment and piping connections
shall be capped, except those connections necessary to inert the tank
within the excavation zone. The piping exterior and ancillary equipment
shall be cleaned to remove all soil and inspected for signs of corrosion
and leakage. The Contractor shall ensure no spillage of the piping
contents occurs, as specified in the Work Plan, and as required in
paragraph SPILLS. If the soil under and around the tank pad is
[contaminated, the tank pad shall be removed and disposed of off-site at an
approved [non-hazardous] [hazardous] waste facility.] [not contaminated,
the tank pad shall remain in place.]
3.8.2
Tank
The tank shall be removed from the excavation and the exterior cleaned to
remove all soil and inspected for signs of corrosion, structural damage, or
leakage. All materials coming into contact with the tank, or in the
vicinity of the excavation such as shovels, slings and tools shall be of
the non-sparking type. After removal from the excavation, the tank shall
SECTION 02115A
Page 19
Previous Page
