ADEQ has completed the Proposed Remedial Action Plan (PRAP) for the Central and Camelback Water Quality Assurance Revolving Fund (WQARF) site in Phoenix, Ariz.¹ The PRAP documents the results of the remedial investigation/feasibility study and identifies the proposed remedy and its estimated costs.

Information

The Central and Camelback WQARF site consists of two plumes located in Phoenix. The plumes are bounded approximately by Georgia Avenue to the north, Mariposa Street to the south, Second Street to the east, and First Avenue to the west. Contaminants of concern at the site are tetrachloroethene and trichloroethene.

The proposed remedy for the site is as follows: continue operation of the groundwater remediation system, perform rebound testing of the soil vapor extraction (SVE) system and decommission when finished, abandon select groundwater monitor wells and SVE wells, and targeted enhanced in-situ bioremediation injections. The estimated cost to implement this remedy is approximately $5,144,000 for a period of 10 years with a contingency of an additional $3,996,000 for ten more years if groundwater contaminant concentrations do not achieve remedial objectives as calculated. Previous costs accrued by ADEQ total $5,288,742.64.

Review Documents

Original Published Public Notice | View/Print >
Proposed Remedial Action Plan | Download >

Public Comment Period 

Dates: July 27, 2017 – Oct. 24, 2017

Comments may be submitted as follows:

     By Email | Send Email > 
     By Mail (Must be postmarked or received by Oct. 24, 2017):

       ADEQ
       Kevin Snyder
       Waste Programs Division
       1110 W. Washington Street
       Phoenix, AZ  85007 

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