Superfund Information Systems: Site Profile

Superfund Site:

GARVEY ELEVATOR
HASTINGS, NE

Health & Environment

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What Are the Risks at the Site?

Based on current site conditions, there are no unacceptable exposures to people occurring.

Current and future residents in the area of the groundwater plume could potentially be exposed to contaminated groundwater through ingesting it, inhaling the vapors during showering, or other direct contact. To prevent this exposure, EPA has identified all residences with private wells in the area, extended municipal water lines to these residences, and connected them. Additionally, the EPA coordinated with the City of Hastings to put groundwater use restrictions in place to prevent future private well installations in this area.

Groundwater beneath the facility is not encountered until 110 feet below the surface. The 110 foot-thick soil zone beneath the existing facility is contaminated with carbon tetrachloride, which will continue to slowly leach into the groundwater. This contaminant leaching has the potential to continue to contaminate groundwater for years to come.

In the absence of cleanup activities, the current four-mile-long contaminated groundwater plume would continue to be spread slowly in the east-southeasterly direction of groundwater flow at a rate of approximately one to two feet per year. Private wells in those areas could become contaminated and expose others to the contaminants.

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Contaminant Information

The Contaminants of Concern (COCs) for the Site have been identified in the June 2010 Interim Record of Decision (ROD) for OU 1 and in the September 2013 Interim ROD for OU 1 and OU 2. For the OU 1 soils, the COCs include carbon tetrachloride, chloroform, and tetrachloroethene. For the OU 1 groundwater, the COCs are carbon tetrachloride and chloroform. For the OU 2 groundwater, the COCs are carbon tetrachloride and chloroform. The contaminants in the soil are primarily a concern due to their potential to leach to the groundwater and cause concentrations in the groundwater to exceed acceptable levels. The contaminants in the soil would also have the potential to pose an unacceptable increased risk of cancer if the Site OU 1 were converted to residential use. The contaminants in the groundwater exceed water quality standards under the Safe Drinking Water Act and pose and unacceptable increased risk of cancer when used for domestic purposes. For the OU 1 soils, the Contaminants of Concern (COCs) identified in the September 2013 Interim Record of Decision were carbon tetrachloride, chloroform, and tetrachloroethene. For the OU 2 groundwater, the contaminants of concern are carbon tetrachloride and chloroform. The contaminants in the soil are primarily a concern due to their potential to leach to the groundwater and cause concentrations in the groundwater to exceed acceptable levels. The contaminants in the soil would also have the potential to pose an unacceptable increased risk of cancer if the Site OU 1 were converted to residential use. The contaminants in the groundwater exceed water quality standards under the Safe Drinking Water Act and pose and unacceptable increased risk of cancer when used for domestic purposes.

View a full list of contaminants of concern for this site.

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Performance Measures

EPA uses performance measures to track environmental results at Superfund sites. If you have any questions or concerns about the measures at this site, please contact the site team members listed under Site Contacts.

Read more about Superfund Remedial Performance Measures.

Performance
Measure
Status at this
Superfund Site
What does this mean?
Human Exposure Under Control Yes Yes means assessments indicate that across the entire site:
  1. There are currently no unacceptable human exposure pathways; and
  2. EPA has determined the site is under control for human exposure.

No means an unsafe level of contamination has been detected at the site and a reasonable expectation exists that people could be exposed.

Insufficient data means that, due to uncertainty regarding exposures, one cannot draw conclusions as to whether human exposures are controlled, typically because:
  1. Response to the contamination has not begun; or
  2. The response has begun, but it has not yet generated information sufficiently reliable to evaluate whether there are currently any unacceptable human exposure pathways at the site.
Groundwater Migration Under Control No

Yes means EPA reviewed all information on known and reasonably expected groundwater contamination. EPA concluded the migration of contaminated groundwater is stabilized and there is no unacceptable discharge to surface water. EPA will conduct monitoring to confirm that affected groundwater remains in the original area of contamination.

No means EPA has reviewed all information on known and reasonably expected groundwater contamination, and the migration of contaminated groundwater is not stabilized.

Insufficient data means that due to uncertainty regarding contaminated groundwater migration, EPA cannot draw conclusions as to whether the migration of contaminated groundwater is stabilized.

Construction Complete No

Yes means the physical construction of the cleanup is complete for the entire site.

No means either physical construction is not complete or actions are still needed to address contamination.

Sitewide Ready for Anticipated Use No Yes means:
  1. All cleanup goals affecting current and reasonably anticipated future land uses of the entire site have been achieved, so there are no unacceptable risks;
  2. All required land-use restrictions or other controls have been put in place; and
  3. The site has achieved Construction Complete status.

No means that one or more of these three criteria have not been met. However, a site listed as no may still have redevelopment occurring on portions of the site and may be eligible for additional redevelopment.

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