Shieldalloy Corp.

By Environmental Protection Agency

Description
Excerpt: Site Description The 67.5 acre Shieldalloy Metallurigical Corp. site houses an active specialty plant where chromium alloy and other products have been produced. Past disposal practices included the release of process wastewater directly to an unlined lagoon, causing groundwater contamination. This resulted in extensive chromium contamination in an area that is dependent upon groundwater for drinking supplies. In 1970, Shieldalloy Metallurigical Corporation (SMC) replaced the unlined lagoon with a series of lined surface impoundments to treat the chromium-contaminated wastewater. In 1979, SMC constructed a decontamination plant for the treatment of chromium-contaminated groundwater. Since 1979, the decontamination plant has treated contaminated groundwater prior to discharge into the Hudson's Branch Tributary of the Maurice River. In 1998, SMC removed and disposed of the contaminated chromium sludge from the lined surface impoundments. There are slag piles and other wastes on site, including low-level radioactive wastes that are licensed by the Nuclear Regulatory Commission. There are approximately 56,000 people living within a 2-mile radius of the site. The closest residence is located less than 1/5 mile away. Private wells are located within a mile of the site. Private and municipal wells in the vicinity of the site have been shown to be contaminated with chromium and volatile organic compounds (VOCs). Because of this, a well restriction area was established in the area in 1986. The private wells affected by chromium are within the well restriction area, and the residents within the restricted area have all been connected to the public water supply. Therefore, no residents are believed to be exposed to contaminated groundwater. A municipal well affected by chromium was used only for non-contact cooling water and never as a potable source. This well is no longer in service. Another municipal well is affected by VOCs, but groundwater from this well is treated prior to distribution.

Book Id: WPLBN0000190104
Format Type: PDF eBook
File Size: 33.50 KB
Reproduction Date: 2007
Full Text

Title:

Shieldalloy Corp.

Author:

Environmental Protection Agency

Volume:

Language:

English

Subject:

Ecology, Natural resource issues, Environemtal protection

Collection:

Environmental Awareness Library Collection

Subcollection:

Historic
Publication Date:

Publisher:

U.S. Environmental Protection Agency

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