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7th Street and Missouri Avenue | Site Overview

Registry placement date: June 24, 2016

Score: 42

County: Maricopa

Location: Phoenix, approximately bounded to the north by Bethany Home Road, to the south by East Georgia Avenue, to the west by North 6th Street, and to the east by North 12th Street.

If you own a private well, live in or near the site boundaries, and have not had your well tested, please contact ADEQ.

Contaminants of concern: Chlorinated solvents tetrachloroethene (PCE) and trichloroethene (TCE)  

Action taken: PCE and TCE were initially detected in the late 1990s in groundwater samples collected as part of an underground storage tank assessment. Following this discovery, eight groundwater monitoring wells were installed during the preliminary investigation to assess the site.

In 2016, Fashion Cleaners entered into ADEQ’s Voluntary Remediation Program (VRP) to address cleanup of their portion of the contamination. Sample results continue to show this site as separate from the 7th Street and Missouri Avenue WQARF site.

During the remedial investigation (RI) in 2016 – 2017 for the 7th Street and Missouri Avenue site, two boreholes and five additional groundwater wells were installed to fully characterize the groundwater plume. Also in 2017, the extent of contaminated soil-gas was determined. 

The Final RI report was released on November 22, 2018. The feasibility study  (FS) work plan was also released November 22, 2018. There is an ongoing early response action (ERA) soil vapor extraction system (SVE) at the site. ADEQ is also conducting an ozone sparging groundwater remediation pilot test for the FS.

Community Involvement Activities: Established and merged with the Central Phoenix Community Advisory Board (CAB). For more information on joining the CAB, or to be included on the site mailing list, please contact the community involvement coordinator. A list of CAB members and their contact information is available in the Community Involvement Plan (CIP) | View CIP >