EPA RCRA ID: VAD988190021
On this page:
- Cleanup Status
- Facility Description
- Contaminants at this Facility
- Institutional/Engineer Controls
- Enforcement and Compliance
- Related Information
- Contacts for this Facility
Cleanup Status
Note: The Virginia Department of Environmental Quality (VDEQ) is the lead agency for managing cleanups at this facility.
In July 2016, the facility's Hazardous Waste Management Permit was modified to incorporate a final remedy detailed in a Statement of Basis developed by the Virginia Department of Environmental Quality (DEQ) dated May 13, 2016, which includes continued operation of the existing groundwater extraction system to reduce concentrations of arsenic in groundwater and to provide containment of the dissolved arsenic groundwater plume, and compliance with institutional controls. The Statement of Basis and Permit modifications underwent a 60-day public comment period. The DEQ received no comments expressing the opinion that the DEQ should modify the final remedy decision. The modified Permit became effective on July 8, 2016 and represents Remedy Selection and Remedy Construction Complete determinations in accordance with the Corrective Action process.
Cleanup - Background
Building One, located on the northwest portion of the Hoover facility, was the location where residual wood preservative materials were treated, temporarily stored, and stabilized. Based on approved closure activities, clean closure of Building One, its contents, and the underlying unsaturated soils was successfully completed on December 1, 1999.
Area A, located on the northeast portion of the Hoover facility, was the location where the stabilized residual wood preservative materials were deposited. Based on approved closure activities, clean closure of unsaturated soils in Area A was successfully completed on December 1, 1999. However, clean closure of the groundwater could not be achieved. Therefore, the post-closure care period for Area A continued through the issuance of a Post-Closure Care Permit (Permit) for Area A on December 15, 2005 which included provisions for RCRA Site-wide Corrective Action.
On September 12, 2009, DEQ contamination from groundwater and human exposures risk were under control.
The Hoover Treated Wood Products, Inc. (Hoover) facility submitted a RCRA Facility Investigation (RFI) Phase II Work Plan to DEQ in August 2011 for further investigation and characterization of arsenic in groundwater on-site including potential impacts to surface water and sediments off-site and to complete a groundwater recovery system/treatment effectiveness evaluation.
An Interim Measure (IM) for the cleanup of groundwater, which includes a groundwater recovery system, was implemented on-site and has been operating since 2003. The treatment effectiveness and hydraulic containment capabilities of the system were evaluate during the RFI Phase II investigation and supported remedy evaluation.
Post Closure Care for Area A was transferred to site-wide corrective action through the Facility’s Hazardous Management Permit issued on July 8, 2016.
On September 21, 2022, the EPA conducted a Long Term Stewardship assessment to assess whether the remedy was implemented and protective of human health and the environment. EPA determined that the remedy institutional and engineering controls have been fully implemented and no control deficiencies were identified.
Cleanup Actions or environmental indicators characterizing the entire facility are shown below. It is not intended as an extensive list of milestones/activities. This listing, and all the data on this page, come from EPA’s RCRAInfo and are refreshed nightly to this page. For this table and the Cleanup Activities Pertaining to a Portion of the Facility table that follows, a blank in the Status column could mean the action either has not occurred or has not been reported in RCRAInfo.
Cleanup Activities Pertaining to the Entire Facility
| Action | Status | Date of Action |
|---|---|---|
| Human Exposure Under Control Human Exposure Under Control(CA725) | ||
| Groundwater Migration Under ControlGroundwater Migration Under Control (CA750) | ||
| Remedy DecisionRemedy Decision (CA400) | ||
| Remedy ConstructionRemedy Construction (CA550) | ||
| Ready for Anticipated Use Ready for Anticipated Use (CA800) | ||
| Performance Standards AttainedPerformance Standards Attained (CA900) | ||
| Corrective Action Process TerminatedCorrective Action Process Terminated (CA999) |
For definitions of the terms used, hover over or click on the term.
Cleanup Activities Pertaining to a Portion of the Facility
| Action | Area Name | Date of Action |
|---|
For definitions of the terms used, hover over or click on the term.
Facility Description
Link to a larger, interactive view of the map.
The Hoover facility occupies approximately 64 acres of property located in Milford, Virginia. The facility lies within the Mattaponi River Basin, approximately one mile east of the Mattaponi River and is bound on the north by a low-lying marshy intermittent drainage way and on the south by tidal wetlands.
Hoover produces pressure treated wood products using a chromate copper arsenate (CCA) solution and other wood treating solutions as well as interior and exterior fire retardants. Historically, residual preservative materials were applied to the facility’s land after being mixed with a stabilizing agent.
Contaminants at this Facility
Contaminants include arsenic in groundwater site-wide with lesser concentrations of other inorganics at Area A.
No impacts to air and surface water have been identified during the environmental investigations and contaminants observed in soil at Area A were removed during unit closure. No other impacts to soil were identified during the RFI process.
Arsenic was observed in sediment to the south of the facility. However the levels observed are not likely to pose an adverse risk to the environment. Since arsenic in groundwater is contained on-site, it’s anticipated that arsenic observed in sediment will attenuate over time.
Institutional and Engineering Controls at this Facility
Institutional controls are required to restrict the facility to non-residential uses, and groundwater use is restricted and also groundwater monitor is required until arsenic levels are at acceptable levels.
Institutional and Engineering Controls help ensure human exposure and groundwater migration are under control at a cleanup facility. Where control types have been reported by states and EPA in EPA’s RCRAInfo, they are shown below. Not all control types are needed at all facilities, and some facilities do not require any controls. Where there are blanks, the control types may not be needed, may not be in place, or may not be reported in RCRAInfo.
Are Controls in Place at this Facility?
|
Control(s) Type |
Control(s) in Place? |
Areas Subject to Control(s) |
Documents available on-line: |
|
|---|---|---|---|---|
|
Institutional ControlsNon-engineering controls used to restrict land use or land access in order to protect people and the environment from exposure to hazardous substances remaining in the site/or facility. (CA 772) |
Informational DevicesInformational Devices (ID) |
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Governmental Controls (GC) |
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Enforcement and Permit Tools (EP) |
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| Proprietary ControlsProprietary Controls (PR) | ||||
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Engineering ControlsEngineering measures designed to minimize the potential for human exposure to contamination by either limiting direct contact with contaminated areas or controlling migration of contaminants. (CA 770) |
Groundwater ControlGroundwater Control (GW) |
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Non-Groundwater |
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For definitions of the terms used, hover over or click on the term.
Enforcement and Compliance at this Facility
EPA’s Office of Enforcement and Compliance Assurance (OECA) provides detailed historical information about enforcement and compliance activities at each RCRA Corrective Action Site in their Enforcement and Compliance Historical Online (ECHO) system.
RCRA Enforcement and Compliance Reports from ECHO
Related Information
For more information about this facility, see these other EPA links:
- RCRA information in EPA’s Envirofacts database
- Information about this facility submitted to EPA under different environmental programs as reported in EPA’s Facility Registry Services
- Alternative Names for this facility as reported by EPA programs in EPA’s Facility Registry Services
- Cleanups in My Community provides an interactive map to see EPA cleanups in context with additional data, and lists for downloading data
- Search RCRA Corrective Action Sites provides a search feature for Corrective Action Sites
Documents, Photos and Graphics
Contacts for this Facility
EPA Region implements and enforces the RCRA Corrective Action program for and federally recognized tribes.
For further information on this corrective action site, use the Contact Information for Corrective Action Hazardous Waste Clean Ups listings that are accessible through Corrective Action Programs around the Nation.