1 - the Envirostor

The goal of the ERA was to rapidly reduce and mitigate public and
environmental exposure to potentially harmful contaminants. The California
Department of Health Services (DHS) had determined, based on the Public
Health and Environmental Risk Assessment (PHERA), that the ERA was
necessary to protect the public health and to limit risks of continued
exposure due to potential time delays from the Remedial Investigation/
Feasibility Study (RI/FS) and Remedial Planning Process. The objectives of
the ERA were the following:
1. Reduce potential direct contact of people with contaminated soil
in residential and vacant lots on the south and east sides of the
site and within the drum yard;
2. Reduce potential future environmental degradation from
contaminated surface water runoff;
3. Remove contaminated materials, tanks, and drums that might have
presented the potential for future off-site contamination or
further degradation of the environment;
4. Reduce the hazard of potentially contaminated airborne dust;
5. Reduce the potential for further degradation of the groundwater
beneath the site from infiltration of precipitation or runoff.
1.3 Imolementation
The work required to implement the ERAS was performed by Canonie's contract
team or their subcontractors. A list of subcontractors is provided in
Table 1. The actual progression of activities and the schedule for any
remaining activities are provided as Figure 1.