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WQARF | WCP North Canal Plume - Overview


West Central Phoenix - North Canal Plume | Overview

Revised On: Jan. 4, 2024 - 10:43 a.m.

Registry placement date: April 15, 1998

Score: 22

County: Maricopa


Phoenix, approximately bounded by Indian School Road on the north, West Flower Street on the south, Grand Avenue on the east and 41st Avenue on the west.

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

Tetrachloroethene (PCE), trichloroethene (TCE), 1,1-dichloroethene (1,1-DCE) and chromium

Action Taken

The remedial investigation (RI) was initiated in February 2001, and ADEQ conducted an early response action (ERA) evaluation in 2005. Due to lack of funding, site activities were suspended from 2008 to 2012. Additional soil and groundwater investigations have been completed since 2013, and the draft RI report was issued for public review and comment in May 2017. Revised Remedial Objectives were issued for public review and comment in December 2019.


The final RI report was finalized in December 2017. Currently groundwater monitoring and sampling is being conducted as part of the Feasibility Study (FS). A 30-day Soil Vapor Extraction (SVE) pilot test was also conducted in the East Plume as part of the ERA in early 2018. An SVE system has been installed in the East Plume and began operating in early 2019. The FS report was completed in January 2020. The Proposed Remedial Action Plan (PRAP) was published in December 2020.

Community Advisory Board (CAB)

Established and meets on a regular basis. A list of CAB members and their contact information is available in the Community Involvement Plan (CIP) | View/Download CIP >