U.S. ENVIRONMENTAL PROTECTION AGENCY
POLLUTION/SITUATION REPORT
Garvey Elevator - Removal Polrep
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
Region VII
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Subject:
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POLREP #8
Garvey Elevator
NEN000704351
Hastings, NE
Latitude: 45.5644000 Longitude: -98.4144000
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To:
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From:
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Randy Schademann, OSC
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Date:
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2/1/2013
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Reporting Period:
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April 2011 through July 2012
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1. Introduction
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1.1 Background
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Site Number: |
NEN000704351 |
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Contract Number: |
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D.O. Number: |
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Action Memo Date: |
5/1/2008 |
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Response Authority: |
CERCLA |
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Response Type: |
Time-Critical |
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Response Lead: |
EPA |
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Incident Category: |
Removal Action |
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NPL Status: |
NPL |
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Operable Unit: |
01 |
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Mobilization Date: |
5/1/2008 |
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Start Date: |
5/1/2008 |
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Demob Date: |
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Completion Date: |
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CERCLIS ID: |
NEN000704351 |
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RCRIS ID: |
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ERNS No.: |
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State Notification: |
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FPN#: |
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Reimbursable Account #: |
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1.1.1 Incident Category
This is a time-critical, fund-lead removal action to address the release of chlorinated compounds from a grain-storage facility.
1.1.2 Site Description
Garvey Elevator operated a grain-storage/processing facility at 2315 West Highway 6, Hastings, Nebraska. Past releases of carbon tetrachloride, which was utilized as a grain fumigant, have contaminated soils and ground water. Garvey Elevator participated in the Nebraska Department of Environmental Quality (NDEQ) Remedial Action Plan Monitoring Act Program (RAPMA) in 1995. Since then, Garvey Elevator installed several monitoring wells, a soil-vapor extraction (SVE) system and a groundwater extraction system, and supplied some 30 area residences and business will bottled water. In December 2003, NDEQ referred the site to the EPA. In the spring of 2008, the EPA was notified that Garvey Elevators intended to file for bankruptcy and would discontinue operation of the system and suppling bottled water.
1.1.2.1 Location
The Garvey Elevator site is located at 2315 West Highway 6, Hastings, Nebraska.
1.1.2.2 Description of Threat
The groundwater contamination extends some four miles downgradient (east, southeast of the site) and is approximately one mile wide.
1.1.3 Preliminary Removal Assessment/Removal Site Inspection Results
In 1994, carbon tetrachloride (CCL4) was identified in environmental samples as part of a Phase I Site Assessment. Since then, 36 monitoring wells have been installed with the highest concentration of CCL4 at 29,943 micrograms per liter (ug/L). At least 40 privately-owned domestic and commercial wells have been sampled with concentrations ranging up to 300 micrograms per liter (ug/L). The Safe Drinking Water Act Maximum Contaminant Level (MCL) for CCL4 is 5 ug/L. Numerous on-site investigations have been completed at the site since 1994. Key findings from the investigations included: the detection of CCL4 at 884 micrograms per kilogram (µg/kg) in soils; the detection of CCL4 at 29,943 ug/L in on-site groundwater; a CCL4 plume extends some four miles downgradient (east-southeast) of the Site.
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2. Current Activities
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2.1 Operations Section
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2.1.1 Narrative
The initial fund-lead Action Memorandum was signed in August of 2006.
2.1.2 Response Actions to Date
Actions completed since April 2011 include:
- Continued operation of the SVE and groundwater systems.
- Near quarterly sampling of the SVE and groundwater systems.
- Installation of new pumps and motors in recovery wells 1, 2, 3 and 4.
- The well vaults for recovery wells 5 and 6 were moved to the original well head. Previously, these wells were fitted with pitless adapters but these proved to be too restritive for well access.
- Recovery well 6 was removed, repaired under warranty and replaced.
- Because of operational issues, pumps/motors were pulled from recovery wells 1 and 3. Wiring issues were corrected for each location.
- Cleaned the contacts on the low and high level float switches for the knockout tanks for SVE-1 and SVE-2.
A report for all activities completed at the site under the removal program is provided in a Garvey Summary of Repairs report in the documents section of this site.
2.1.3 Enforcement Activities, Identity of Potentially Responsible Parties (PRPs)
Garvey Elevator is in bankruptcy.
2.1.4 Progress Metrics
Removal of carbon tetrachloride up to July 2012 by the SVE and ground water systems since the operations were restarted by the EPA in 2008:
| Waste Stream |
Medium |
Quantity |
Manifest # |
Treatment |
Disposal |
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| SVE and ground water |
Vapor |
266 pounds |
None |
None |
Vented |
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2.2 Planning Section
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2.2.1 Anticipated Activities
2.2.1.1 Planned Response Activitie
The remedial program assumed operation and maintenance of the systems on July 31, 2012. A final walk-through will be conducted by the removal program in the summer 2013.
2.2.1.2 Next Steps
A final Pol/SitRep will be published after the final walk through.
2.2.2 Issues
No special issues have been identified at this time.
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2.3 Logistics Section
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The on-site crew varies considerably. During normal operation, a START subcontractor provides a daily system check and ensuring report. During sampling of the SVE and groundwater network, two START personnel and the OSC are normally present.
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2.4 Finance Section
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No information available at this time.
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2.5 Other Command Staff
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2.5.1 Safety Officer
Health and safety meetings are held only during site activities. No health and safety issues have been identified at this time.
2.6 Liaison Officer
The limited scope of this response does not warrant a Liaison Officer.
2.7 Information Officer
2.7.1 Public Information Officer
The limited scope of this removal does not warrant a PIO.
2.7.2 Community Involvement Coordinator
A CIC has been identified and coordination has occurred when necessary. The OSC provided a TV spot in June of 2008.
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3. Participating Entities
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3.1 Unified Command
The limited scope of this removal does not warrant an IMT or UC.
3.2 Cooperating Agencies
NDEQ, Hastings Utilities, and the City of Hastings are kept abreast of current events.
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4. Personnel On Site
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See Logistics Section.
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5. Definition of Terms
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None.
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6. Additional sources of information
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6.1 Internet location of additional information/report
None.
6.2 Reporting Schedule
A final Pol/Sit Report will be completed at project close out.
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7. Situational Reference Materials
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None.
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