Essay on The Sources Of The Groundwater Contaminant Plume

Essay on The Sources Of The Groundwater Contaminant Plume

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The suspected sources of the groundwater contaminant plume are historical releases from several
facilities (including Sunshine Laundry, Elite Cleaners, and American Linen Corporation) that operated
laundry and/or dry‐cleaning facilities near the corner of 3rd Street and Roma Avenue from 1924 to 1973. In 1973, the buildings were demolished and replaced by a paved parking area as part of an urban
development plan. The City of Albuquerque first discovered chlorinated solvent contamination in
groundwater near the site in April 1989, during a routine inspection of the Coca‐Cola bottling plant
water supply well, located at 205 Marquette Avenue NE, which was plugged and abandoned in 1989. In addition, two underground storage tanks (UST), a 300‐gallon UST and a 1,500‐gallon UST, were removed from the former Elite Cleaners/Sunshine Laundry property by the City of Albuquerque in November 1989.

Groundwater is an important source of drinking water for the City of Albuquerque. Currently, the Water
Authority and the UNM operate an array of water supply wells located east (downgradient) of the site.
These wells are screened in the same alluvial aquifer that is being remediated under the FAP Superfund
site ROD. Protection of water quality at the Water Authority and UNM well locations from impacts
associated with the FAP Superfund site is consistent with the requirements established in the ROD.

The 2001 Record of Decision

The remedy selected in the ROD consisted of the following elements:
1. Soil Vapor Extraction: Treatment of contaminated soil located on the source area property
2. Hot Spot Treatment: Remediation of contamination hot spots in the shallow and intermediate groundwater that underlies the source area property by injecting either a...

... middle of paper ...

... mode, the system status was changed to what essentially is a standby mode on July 2013, as recommended in the draft Monitored Natural Attenuation Evaluation Report. Effective April 2014, the EPA extended the standby operation mode until completion of an additional assessment of MNA in 201place, and the completion of the 2nd Five-Year Review.

Contaminants of Concern

The primary COC in the groundwater at the site is trichloroenthene (TCE), with lesser amounts of perchloroethene (PCE), cis 1,2-dichloroethene (cis-1,2-DCE), and trans 1,2-dichloroethene (trans-1,2-DCE). Vinyl chloride, another chemical compound, which may form as TCE naturally breaks down in the environment, has not been routinely detected.

Based on the baseline risk assessment, the primary medium of concern at the Site is the groundwater. 0 lists the remedial goals for the Site presented in the ROD.

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