ADEQ has completed the final remedial investigation (RI) report and feasibility study (FS) work plan for the Harrison Road and Millmar Road Dross Water Quality Assurance Revolving Fund (WQARF) site located in Tucson, Ariz.
RI and FS Information
An RI is conducted to document the nature and extent of the contamination and the sources thereof; identify current and potential impacts to public health, welfare and the environment; identify current and reasonably foreseeable uses of land and waters of the state; and obtain and evaluate any other information necessary for identification and comparison of alternative remedial actions. The final RI report includes the final remedial objectives report and responsiveness summaries regarding comments, issues and concerns raised during the community involvement process. An FS is conducted to identify a reference remedy and alternative remedies that appear to be capable of achieving established remedial objectives and to evaluate them based on the comparison criteria.
The Harrison Road and Millmar Road Dross WQARF site consists of two piles of dross and related contaminated soils located in Tucson. The site area is bounded approximately by east Millmar Road to the north, the Pantano Vista Mobile Home Park (MHP) to the south, the private driveway of 9880 East Millmar Road to the east and the Harrison Hills Wash to the west.
Groundwater is not impacted at the site. Contaminants of concern at the site are: heavy metals including aluminum, antimony, arsenic, cadmium, copper, lead and nickel.
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