View map PDF. In some locations, the groundwater contamination has extended beyond these boundaries and those locations are considered part of the Superfund site. Once the presence of industrial chemicals was discovered, Scottsdale stopped using these wells for drinking water purposes.
The EPA identified the parties potentially responsible for causing the contamination and determined that a long-term cleanup effort would be required. The parties potentially responsible for the contamination include — Motorola Solutions formerly Motorola, Inc.
To clean up the site and return the wells to drinking water use, the potentially responsible parties built the Central Groundwater Treatment Facility CGTF , located near Pima and Thomas roads.
This treatment plant is able to treat water pumped from up to four groundwater wells that contain TCE using air stripping. Scottsdale ensures that the water produced by the plant meets or surpasses all federal and state standards for safe and healthy drinking water, with oversight from the EPA in cooperation with ADEQ.
The facility removes TCE from the water to a level that is considered non-detect less than 0. In construction was completed for a new treatment facility for the long-term remedy for the NIBW site. This facility extracts water from well PCX-1 and uses a liquid Granular Activated Carbon treatment process to clean and treat the water.
When the Chaparral Plant cannot take the water, the treated water is discharged into the nearby Arizona Canal. Cleanup Timeline. However, large portions of the groundwater plume cleanup should be completed before that time. As of monitoring in , the upper aquifer plume has decreased in size by 90 percent, and the total mass of contaminants in the upper aquifer groundwater has decreased by over 98 percent. Since there are numerous Superfund sites that exist throughout the Valley, including the West Valley, it's important that sellers and buyers investigate if the property is affected.
The Arizona Department of Environmental Quality ADEQ has an interactive map that sellers and buyers can use to find Superfund sites, hazardous waste sites, and other valuable disclosure information. The ADEQ map can be a great resource for both sellers and buyers to determine the location of any sites.
Since a seller could be unaware of such sites as well as unaware of the map, buyers should perform their due diligence and investigate the locations of these sites on their own. In fact, on the AAR Buyer Advisory, buyers are advised to investigate the "numerous sites in Arizona where the soil and groundwater have been contaminated by improper disposal of contaminants. About Us Blog. Sign in to your account. Phone Number Need to reset your phone number?
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