ADEQ has completed the proposed remedial action plan (PRAP) for the Stone Avenue and Grant Road Water Quality Assurance Revolving Fund (WQARF) site in Tucson, Arizona [Arizona Administrative Code R18-16-408(C)]. The PRAP documents the results of the remedial investigation/feasibility study (RI/FS) and identifies the proposed remedy and its estimated costs.

Information

The Stone Avenue and Grant Road WQARF site consists of two areas of soil contamination above Soil Remediation Levels (SRLs) surrounded by PCE and TCE in soil gas above US EPA Vapor Intrusion Screening Levels (VISLs) located in Tucson, Arizona. The extent of soil contamination is limited to two respective properties located near the intersection of North Stone Avenue and West Grant Road. The extent of soil-gas plume is bounded approximately to the north by West Jacinto Street, to the south by East Sahuaro Street, to the east by North Estrella Avenue and to the west by North Oracle Road. The contaminant of concern at the site is tetrachloroethene (PCE).

The proposed remedy for the site is as follows: Implementation of Soil Vapor Extraction systems at the two identified areas of soil contamination. The estimated cost to implement this remedy is approximately $2.5 million for a period of 10 years.

Review Documents & Site Information

Original Published Public Notice | View/Print > 
Proposed Remedial Action Plan | Download >
Stone Avenue and Grant Road WQARF Site Page | View >

90-Day Public Comment Period 

Dates: March 13, 2020 - June 11, 2020

Comments may be submitted as follows:

     By Email | Send Email > 
     By Mail (Must be postmarked or received by June 11, 2020):

       ADEQ
       Gianna Trujillo
       Waste Programs Division
       400 W. Congress St. #433
       Tucson, AZ 85710

You may also review the above documentation in person at the ADEQ Record Center | Learn How >