Remediation and Reuse of Lead- and Petroleum-Contaminated
Soil at a Boston Brownfields Site.
Waste
Treatment Home > Brownfields >
Boston
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| S/S treatment of soil. |
The "Big Dig" in Boston will redirect traffic back through previously
neglected areas of the city. Properties that had little value now
are worth redevelopment. An office, residential, and retail campus
is planned for the site of the oldest electric generating plant
in the city.
Cement-based solidification/stabilization (S/S) treatment was used
to address lead- and petroleum-contaminated soil at the site. Excavation
revealed petroleum-based free product apparently released from underground
storage tanks (USTs), as well as soil contaminated with heavy metals,
apparently from ash fill. Remediation of the contaminated soil
involved recovery of free product through tank structure removal
and pumping, along with cement-based S/S of contaminated soil and
fill. A portable S/S treatment plant was mobilized to the site.
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| Redevelopment plans. |
Approximately 2,100 m3 (2,800 cu yd) of material was excavated
at the site. Rather than being disposed of off-site, the contaminated
material was treated and reused at the site. Off-site transportation
and disposal would have cost the property owner an additional $500,000
over treatment costs. Additional savings of $30,000 were realized
through the reuse of the material as pavement base for a parking lot
on the property. As a result of the treatment, petroleum and lead
in the soil were successfully treated and contained at the site.
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