Kellogg-Deering Well Field - Norwalk, CT - Super Fund Sites on Waymarking.com

This Superfund site is in Norwalk, CT on Main Avenue. It is on the northbound side. It looks like a big scraggly field on the side of this business road, and very odd because the rest of the area is very built up!

You can not enter this area because it is surrounded by a fence. There are no signs or other designations to indicate that this is a Superfund site. You would only know by looking up the information online.

You can safely photograph this site by parking at the shopping plaza across the street.

According to the EPA:

"The Kellogg-Deering Well Field site is in Norwalk, Connecticut. It consists of a 10-acre municipal well field and adjacent areas that contributed to the well field contamination. Groundwater sampling identified a significant source of contamination below the Elinco/Pitney Bowes/Matheis Court Complex at the eastern edge of the site. The well field supplies about 50 percent of Norwalk’s public drinking water supplies. Following construction of the site’s long-term remedy, groundwater treatment and environmental monitoring are ongoing.

What Has Been Done to Clean Up the Site?
The site is being addressed through federal, state and potentially responsible party (PRP) actions. Wellhead treatment and controlling the sources of soil and groundwater contamination have reduced the potential of exposure to hazardous substances in the drinking water and will continue to protect the neighboring residents while final cleanup activities at the site are completed.

EPA has conducted several five-year reviews of the site’s remedy. These reviews ensure that the remedies put in place protect public health and the environment, and function as intended by site decision documents. The most recent review concluded that response actions at the site are in accordance with the remedy selected by EPA and that the remedy continues to be protective of human health and the environment in the short term. Exposure pathways that could result in unacceptable risks are being controlled through the wellhead treatment system and institutional controls that prevent use of contaminated groundwater.

The remedy will be protective of human health and the environment in the long term when VOC mass removal achieves site cleanup standards. Groundwater extraction and treatment is ongoing. Based on a review of recent groundwater sampling, the possibility exists that the current groundwater extraction and treatment system may not achieve restoration of the groundwater. Additionally, should the Source Area property be redeveloped, further actions may be needed to prevent inhalation of contaminated soil vapors so that the remedy remains protective in the long term.

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What Is the Current Site Status?
The site is being addressed in three long-term remedial phases focused on wellhead treatment, source control, and downgradient aquifer management.

Wellhead Treatment:
The Water Department installed an aerator in 1981 at one of the wells to reduce the concentration of volatile organics in the groundwater. In 1988, an additional air stripper increased the removal of volatile organic compounds (VOCs) at the wellfield. While the VOC levels in the influent water from all wells have been meeting drinking water standards since 1989, the Water Department has continued to operate the air stripper as part of its overall water treatment system as an efficient method to maintain the pH of the water.

Source Control:
The remedy selected by EPA for controlling the source of contamination involves removal of contaminants from the soil with vacuum extraction, extraction and treatment of contaminated groundwater, and institutional controls to prevent exposure during the cleanup process. Construction of this treatment facility finished in September 1996. The soil vapor extraction system remained operational until 2005 when testing confirmed the soil cleanup standards had been met. The soil extraction system was dismantled in 2006. After this action, in preparation for development of the property, the owner excavated and disposed of offsite more soil to meet Connecticut regulations

The groundwater extraction and treatment system remain operational.

Downgradient Aquifer Management:
Through groundwater monitoring, EPA has been tracking the extent and migration of contaminants in the area downgradient from the source of contamination and above the well field. Sampling of indoor air in homes within the downgradient area confirmed that contaminant vapors were not posing an unacceptable risk. Through Five-Year Reviews, EPA continues to evaluate the impact of the cleanup at the wellhead and source control areas on reducing the levels of contaminants downgradient from the source and above the well field over time.

Groundwater treatment and environmental monitoring are ongoing."

source:https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fuseaction=second.Cleanup&id=0100252#bkground

ID: CTD980670814 Site Name: Kellogg-Deering Well Field Link to Site: [Web Link] Additional Parking: Not Listed

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