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Remedial Action Objective -- Prevent the public from inhalation of airborne
contaminants in excess of state or federal standards or that pose a threat to human health.
How Alternative will meet RAO -- Soil containing contamination in excess of state or federal
standards or that poses a threat to human health will be treated by a combination of SVE and
MPE. Increased airflow caused by SVE and MPE will remove contaminants from soils and
promote biodegradation.
Remedial Action Objective -- Prevent the migration of contamination from the source
area that would result in degradation of site-wide groundwater or surface water to levels
in excess of state or federal standards or that pose a threat to human health or the
environment.
How Alternative will meet RAO -- A combination of SVE, MPE, and air sparging will remove
free product and the contamination from soils that contain concentrations contributing to site-wide
groundwater contamination in excess of ARARs. Leachate and soil contaminants below
the water table will be treated by a combination of air sparging, and leachate containment, which
will be achieved by leachate collection via extraction wells. The leachate containment system
will extract remaining leachate contamination until ARARs are met at the GMZ boundary.
Remedial Action Objective -- Prevent the public from ingestion and direct contact with
surface water containing contamination in excess of state or federal standards or that
pose a threat to human health.
How Alternative will meet RAO -- The removal of free product, contaminated soils, and
contaminated groundwater will reduce the possibility that Area 7 groundwater contamination
might impact the creek north of the park. Additional sampling will determine if levels within the
creek pose a threat to human health.
Remedial Action Objective -- Prevent the migration of contamination from Source Area 7
that would result in degradation of surface water and sediment in the unnamed creek to
levels in excess of state or federal standards or that pose a threat to human health or the
environment.
How Alternative will meet RAO -- The removal of free product, contaminated soils, and
contaminated groundwater will reduce the possibility that Area 7 groundwater contamination
might impact the creek north of the park. Additional sampling will determine if levels within the
creek pose a threat to the environment.
Remedial Action Objective -- Prevent the migration of contamination from Source Area 7
that would result in the contamination of home-grown vegetables at concentrations which
would pose a threat to human health.
