Final Environmental Impact Report - Whittier Bridge/I-95 ...

Whittier Bridge/I-95 Improvement Project FEIR
Chapter 3.0: Mitigation and Commitments
If FHWA or MassDOT determines that the undertaking will affect a previously unidentified
property that may be eligible for listing in the National Register of Historic Places, or will affect a
known historic property in an unanticipated manner, the FHWA and MassDOT will make
reasonable efforts to avoid, minimize, or mitigate adverse effects to such properties and
determine actions that they can take to resolve adverse effects following the procedures in 36
CFR 800.13(b). In the event that a post-review discovery involves a property or properties that
may have traditional cultural and religious significance to federally recognized Indian tribes,
FHWA, in coordination with MassDOT, will consult with the appropriate Indian tribe(s) in
accordance with the requirements of 36 CFR 800.13(b) and established procedures for Section
106 tribal consultation for Massachusetts. If pre-contact cultural resources are discovered or
unanticipated effects on pre-contact period resources are found, FHWA, in coordination with
MassDOT, will consult with the appropriate federally recognized Indian tribes in accordance with
established procedures for Section 106 tribal consultation for Massachusetts.
3.13 OIL AND HAZARDOUS MATERIALS
No adverse impacts resulting from the project were identified that would require special mitigation
measures under the Massachusetts Contingency Plan (MCP). In accordance with the MassDOT
specifications for Oil and Hazardous Materials, the design/build contractor will be required to monitor
excavated soils during construction to ensure that any soils encountered that could require special
handling will be identified and properly managed. (A copy of the specifications is included in
Appendix G of the EA/DEIR.)
All hazardous materials will be handled and disposed of in accordance with state and federal laws,
including the MCP. A soil and groundwater management plan will be developed and implemented by
the design/build contractor during construction. An additional pre-characterization program for areas
where construction and/or excavation activities may occur within the project limits of work will be
completed by MassDOT prior to issuing final bid documents for the design-build contract. This
additional data will provide information on current soil and groundwater conditions at the site and will
be used to develop soil and groundwater management and disposal options.
No asbestos or asbestos-containing material is known to exist along the project alignment. The
design/build contractor will be required to comply with MassDOT specifications for proper removal of
bridge components coated with lead-based paint. These specifications require specific protective
measures for land and water during paint removal operations. For activities over land (and wetland
resources), an approved impervious covering must be placed on the ground under the work and
decontamination areas and under waste containers. In the event that it is not practical to place
tarpaulins directly on the ground, shielding devices must be supported by suitable frame works to
prevent falling contaminants from escaping. Specific language for the protection of water below the
bridge requires the contractor to take all necessary precautions to prevent debris due to paint related
activities from entering the water. Any notification and clean-up procedures required to abate lead
contamination in sediments or water shall be the responsibility of the contractor. The contractor must
protect all drains to prevent debris from entering the storm sewer system. The contractor shall
provide water booms, a method for anchoring the water booms and a procedure for removing the
debris that inadvertently enters the water.
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