Long Bridge Park ENVIRONMENTAL REMEDIATION ... - Arlingtonva
Long Bridge Park ENVIRONMENTAL REMEDIATION UPDATE
MARCH 2010
Arlington County is committed to communicating openly about environmental conditions at Long Bridge Park. This update describes the remediation approach for the former industrial sites and how you can ask questions or provide comments.
CONSTRUCTION AND REMEDIATION WILL BEGIN SOON
and some remediation activities have been completed for Parcels 14 and 15.
Long Bridge Park will be located at the north end of Crystal City between Old Jefferson Davis Highway and Roaches Run Waterfowl Sanctuary. (See Figure 1 on the last page.)
Arlington County’s remediation plan is to:
The future park property, sometimes referred to as the North Tract, was once a light industrial site. It is now one of the few remaining large areas of open space in Arlington County.
• Reuse soil onsite
The property consists of two parcels of land: Parcel 14 is the former Davis Industries Site and Parcel 15 is the former Arlington Industrial Area.
• Establish site controls to properly manage the material left in place
Planning The 2004 Master Plan provides a blueprint for transforming this brownfield site into a premier urban park and recreational facility. The park will be constructed in several phases. Implementing a sound environmental process ensures that Parcels 14 and 15, moderately contaminated by former industrial use, are safe for the recreational use envisioned by the master plan. This fact sheet summarizes the investigations and upcoming actions at Parcels 14 and 15. More details are available in the Site Characterization Reports and Remedial Action Work Plans prepared for these parcels. Construction - Phase 1 In December 2009, the Arlington County Board approved a contract to build three athletic fields, an esplanade and other outdoor amenities at Long Bridge Park. Construction is expected to begin in early 2010 and finish in summer 2011. Remedial actions (environmental clean-up and land use controls) for Parcels 14 and 15 will be integrated with this first phase of park construction.
Remediation Approach Under Virginia’s Voluntary Remediation Program, voluntary investigations, human health risk assessments,
• Excavate, screen, and treat contaminated soil (where needed)
• Put a clean soil cover in place
VIRGINIA’S VOLUNTARY REMEDIATION PROGRAM is a Virginia Department of Environmental Quality (VDEQ) program. The program provides oversight for properties where clean-up of hazardous substances is not mandated, but being carried out voluntarily by the owner or developer. As an independent party, the state (1) decides if human health is adequately protected and when remediation is complete and (2) issues a Certificate of Satisfactory Completion of Remediation. More specifically, contaminated soil will be excavated during the construction of park features and treated as necessary. The soil will be reused onsite in pre-determined areas, referred to as Placement Zones. These zones will be constructed to enclose or cover soil that has been treated or has contaminants at levels below regulator-approved thresholds. A covering of one to two feet of clean fill dirt will separate park users from the underlying soil.
When contaminants are found in soil at levels less than thresholds approved by regulators for the planned land use, it is generally agreed that risk to human health or the environment is very low.
LONG BRIDGE PARK This integrated remediation and redevelopment approach will protect human health, both during and after construction and remediation. It is also an environmentally sustainable approach. By managing most of the material onsite, the County will avoid additional truck trips to
Although investigation and remediation of the Davis site was completed, Arlington County has decided to take additional actions to further protect construction workers and park users, because residual lead, PCBs, and total petroleum hydrocarbons could be present at the site.
dispose of contaminated soil offsite and will not consume landfill space. As a result, less non-renewable fuels (diesel) will be used and the associated emission of particulates and greenhouse gas into the air will be significantly decreased.
As soil is excavated during park construction, the County will screen it for contamination. Soil that exceeds regulatory limits for contaminants (for example, soil with PCBs greater than one part per million) will be disposed of offsite.
Arlington County will work with VDEQ to successfully carry out the remedial process and to receive Certificates of Satisfactory Completion for Parcels 14 and 15.
The remainder of the excavated soil will be reused onsite in a designated Placement Zone. One to two feet of clean fill dirt will be placed as a cover over the entire Parcel 14 site. Two synthetic grass playing fields will be installed on top of the clean fill.
PARCEL 14: FORMER DAVIS INDUSTRIES SITE Background
These measures will keep park users from coming into contact with the underlying soil.
Parcel 14 is a 4.5-acre parcel located just north of 6th Street South. Known as the Davis site, it was used as a scrap yard from 1952-1988.
For a health risk to occur, people must be exposed to contaminants. This scenario is called a complete exposure pathway. There will be no complete exposure pathways after the work at Parcels 14 and 15 is complete.
Scrap yard operations included recycling batteries containing lead and reclaiming electric equipment, some of which contained polychlorinated biphenyls (PCBs). These operations were later identified as the source of soil at the site that was contaminated with lead and PCBs.
Qualified construction and utility workers will follow appropriate health and safety plans. If any residual contamination is encountered during construction of the park and subsurface utilities, “clean working zones” will be created.
The Davis site was previously enrolled in the Voluntary Remedial Program (Site ID Number VRP00089). The state-approved remedy was:
Site Controls for Ongoing Protection
• Excavating soil with the highest concentrations of PCBs and lead and removing it from the site.
Arlington County will put in place the following long-term site controls:
• Placing a protective cap over the area with the most residual contamination.
• Maintain the new cover and the original cap.
• Establishing site controls, including a “no dig” zone under the center of the cap.
• Establish and document health and safety requirements for any future ground-disturbing work outside the established “clean working zones” on the site.
This work was completed in 2003.
• Uphold the existing prohibition on using groundwater at the site.
The existing cap prevents people or wildlife from being exposed to the soil and keeps contaminants from moving offsite. Non-capped areas were covered by clean topsoil and grass. VDEQ issued the Certificate of Satisfactory Completion in 2006.
• Uphold deed restrictions prohibiting disturbance of the “no dig” zone. These long-term measures will protect the environment and the health of park users, park workers, construction workers, and utility workers in the future.
Additional Remedial Action Planned
Site closure and the certificate were based on future industrial use and on maintaining the cap and the “no dig” zone. Surface parking is allowed on the capped area.
PARCEL 15: ARLINGTON INDUSTRIAL AREA Background
To convert the land from industrial to recreational use, Arlington County has acquired Parcel 14 and re-entered it into the Voluntary Remediation Program, with a new case number.
Parcel 15 was enrolled in the VRP in 2003 (Site ID Number VRP00334). Investigations have attributed lead contamination in soil to past industrial practices and to the slag and possibly ash within the urban fill that underlies the site. 2
ENVIRONMENTAL REMEDIATION UPDATE Lead is the primary chemical posing possible human health concerns at this site. Lead tends to cling to soil. The primary exposure pathway for lead is by accidentally swallowing soil or inhaling dust containing lead.
FOR MORE INFORMATION You can read more about Long Bridge Park or submit comments by visiting the Arlington County website at:
Remedial Action Planned
Lead-contaminated soil will be removed from areas where industrial activities occurred, to the extent necessary for park development. The excavated areas will be backfilled and graded.
http://www.arlingtonva.us/longbridgepark Requests for additional information and questions from the public are welcome at any time.
The excavated soil will be screened to determine whether lead levels in the soil may be hazardous and will be treated as appropriate. The soil will be reused onsite in designated Placement Zones, where it will be covered with clean soil.
TO SUBMIT COMMENTS In accordance with the Voluntary Remediation Program (9 VAC 20-160-120(A)(3)), a public notice has been published in local newspapers.
The plan is to beneficially reuse this excavated soil within the cores of secure, new land features on Parcel 15:
Written comments about the remedial action will be accepted for 30 days following the publication date of the notice. You may submit comments on the website or send them to:
• Raised synthetic grass playing field • The Esplanade – a broad, half-mile long, raised walkway • A 43-foot-high scenic overlook at the northeastern end of the park During remediation and site redevelopment, possible risks to the public will be low. To minimize the amount of leadcontaining dust or silt that is generated and keep it from being transported offsite, the County will:
Erik Beach, Planner Arlington County Department of Parks, Recreation, and Cultural Resources 2100 Clarendon Boulevard, Suite 414 Arlington, VA 22201
• Control construction traffic using signs and flagmen, as needed.
Phone: (703) 228-3318 Fax: (703) 228-3328
• Spray exposed soil with water to suppress dust.
E-mail: [email protected]
• Decontaminate vehicles before they leave the site. • Maintain sediment and erosion controls. Workers will be required to wear personal protective equipment to prevent accidentally inhaling or swallowing dust containing lead. Personnel involved in the remedial action will be properly trained and medically monitored, in accordance with U.S. Occupational Safety and Health Administration requirements. Site Controls for Ongoing Protection
After remedial action is complete, Arlington County will establish and maintain long-term site controls, as necessary for long-term protection of human health and the environment. Site controls will consist of deed restrictions, a prohibition on using groundwater at the site, and other engineering controls, similar to those at other redeveloped brownfield sites across the U.S.
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Potomac River
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Reagan National Airport
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Parcel 15
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Crystal City
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Former Davis Industries Parcel 14 6t h
Roaches Run Waterfowl Sanctuary
Legend Parcel Boundary Long Bridge Park Boundary
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400 Feet
Figure 1 − Location of Long Bridge Park and Parcels 14 and 15
MARCH 2010
Arlington County is committed to communicating openly about environmental conditions at Long Bridge Park. This update describes the remediation approach for the former industrial sites and how you can ask questions or provide comments.
CONSTRUCTION AND REMEDIATION WILL BEGIN SOON
and some remediation activities have been completed for Parcels 14 and 15.
Long Bridge Park will be located at the north end of Crystal City between Old Jefferson Davis Highway and Roaches Run Waterfowl Sanctuary. (See Figure 1 on the last page.)
Arlington County’s remediation plan is to:
The future park property, sometimes referred to as the North Tract, was once a light industrial site. It is now one of the few remaining large areas of open space in Arlington County.
• Reuse soil onsite
The property consists of two parcels of land: Parcel 14 is the former Davis Industries Site and Parcel 15 is the former Arlington Industrial Area.
• Establish site controls to properly manage the material left in place
Planning The 2004 Master Plan provides a blueprint for transforming this brownfield site into a premier urban park and recreational facility. The park will be constructed in several phases. Implementing a sound environmental process ensures that Parcels 14 and 15, moderately contaminated by former industrial use, are safe for the recreational use envisioned by the master plan. This fact sheet summarizes the investigations and upcoming actions at Parcels 14 and 15. More details are available in the Site Characterization Reports and Remedial Action Work Plans prepared for these parcels. Construction - Phase 1 In December 2009, the Arlington County Board approved a contract to build three athletic fields, an esplanade and other outdoor amenities at Long Bridge Park. Construction is expected to begin in early 2010 and finish in summer 2011. Remedial actions (environmental clean-up and land use controls) for Parcels 14 and 15 will be integrated with this first phase of park construction.
Remediation Approach Under Virginia’s Voluntary Remediation Program, voluntary investigations, human health risk assessments,
• Excavate, screen, and treat contaminated soil (where needed)
• Put a clean soil cover in place
VIRGINIA’S VOLUNTARY REMEDIATION PROGRAM is a Virginia Department of Environmental Quality (VDEQ) program. The program provides oversight for properties where clean-up of hazardous substances is not mandated, but being carried out voluntarily by the owner or developer. As an independent party, the state (1) decides if human health is adequately protected and when remediation is complete and (2) issues a Certificate of Satisfactory Completion of Remediation. More specifically, contaminated soil will be excavated during the construction of park features and treated as necessary. The soil will be reused onsite in pre-determined areas, referred to as Placement Zones. These zones will be constructed to enclose or cover soil that has been treated or has contaminants at levels below regulator-approved thresholds. A covering of one to two feet of clean fill dirt will separate park users from the underlying soil.
When contaminants are found in soil at levels less than thresholds approved by regulators for the planned land use, it is generally agreed that risk to human health or the environment is very low.
LONG BRIDGE PARK This integrated remediation and redevelopment approach will protect human health, both during and after construction and remediation. It is also an environmentally sustainable approach. By managing most of the material onsite, the County will avoid additional truck trips to
Although investigation and remediation of the Davis site was completed, Arlington County has decided to take additional actions to further protect construction workers and park users, because residual lead, PCBs, and total petroleum hydrocarbons could be present at the site.
dispose of contaminated soil offsite and will not consume landfill space. As a result, less non-renewable fuels (diesel) will be used and the associated emission of particulates and greenhouse gas into the air will be significantly decreased.
As soil is excavated during park construction, the County will screen it for contamination. Soil that exceeds regulatory limits for contaminants (for example, soil with PCBs greater than one part per million) will be disposed of offsite.
Arlington County will work with VDEQ to successfully carry out the remedial process and to receive Certificates of Satisfactory Completion for Parcels 14 and 15.
The remainder of the excavated soil will be reused onsite in a designated Placement Zone. One to two feet of clean fill dirt will be placed as a cover over the entire Parcel 14 site. Two synthetic grass playing fields will be installed on top of the clean fill.
PARCEL 14: FORMER DAVIS INDUSTRIES SITE Background
These measures will keep park users from coming into contact with the underlying soil.
Parcel 14 is a 4.5-acre parcel located just north of 6th Street South. Known as the Davis site, it was used as a scrap yard from 1952-1988.
For a health risk to occur, people must be exposed to contaminants. This scenario is called a complete exposure pathway. There will be no complete exposure pathways after the work at Parcels 14 and 15 is complete.
Scrap yard operations included recycling batteries containing lead and reclaiming electric equipment, some of which contained polychlorinated biphenyls (PCBs). These operations were later identified as the source of soil at the site that was contaminated with lead and PCBs.
Qualified construction and utility workers will follow appropriate health and safety plans. If any residual contamination is encountered during construction of the park and subsurface utilities, “clean working zones” will be created.
The Davis site was previously enrolled in the Voluntary Remedial Program (Site ID Number VRP00089). The state-approved remedy was:
Site Controls for Ongoing Protection
• Excavating soil with the highest concentrations of PCBs and lead and removing it from the site.
Arlington County will put in place the following long-term site controls:
• Placing a protective cap over the area with the most residual contamination.
• Maintain the new cover and the original cap.
• Establishing site controls, including a “no dig” zone under the center of the cap.
• Establish and document health and safety requirements for any future ground-disturbing work outside the established “clean working zones” on the site.
This work was completed in 2003.
• Uphold the existing prohibition on using groundwater at the site.
The existing cap prevents people or wildlife from being exposed to the soil and keeps contaminants from moving offsite. Non-capped areas were covered by clean topsoil and grass. VDEQ issued the Certificate of Satisfactory Completion in 2006.
• Uphold deed restrictions prohibiting disturbance of the “no dig” zone. These long-term measures will protect the environment and the health of park users, park workers, construction workers, and utility workers in the future.
Additional Remedial Action Planned
Site closure and the certificate were based on future industrial use and on maintaining the cap and the “no dig” zone. Surface parking is allowed on the capped area.
PARCEL 15: ARLINGTON INDUSTRIAL AREA Background
To convert the land from industrial to recreational use, Arlington County has acquired Parcel 14 and re-entered it into the Voluntary Remediation Program, with a new case number.
Parcel 15 was enrolled in the VRP in 2003 (Site ID Number VRP00334). Investigations have attributed lead contamination in soil to past industrial practices and to the slag and possibly ash within the urban fill that underlies the site. 2
ENVIRONMENTAL REMEDIATION UPDATE Lead is the primary chemical posing possible human health concerns at this site. Lead tends to cling to soil. The primary exposure pathway for lead is by accidentally swallowing soil or inhaling dust containing lead.
FOR MORE INFORMATION You can read more about Long Bridge Park or submit comments by visiting the Arlington County website at:
Remedial Action Planned
Lead-contaminated soil will be removed from areas where industrial activities occurred, to the extent necessary for park development. The excavated areas will be backfilled and graded.
http://www.arlingtonva.us/longbridgepark Requests for additional information and questions from the public are welcome at any time.
The excavated soil will be screened to determine whether lead levels in the soil may be hazardous and will be treated as appropriate. The soil will be reused onsite in designated Placement Zones, where it will be covered with clean soil.
TO SUBMIT COMMENTS In accordance with the Voluntary Remediation Program (9 VAC 20-160-120(A)(3)), a public notice has been published in local newspapers.
The plan is to beneficially reuse this excavated soil within the cores of secure, new land features on Parcel 15:
Written comments about the remedial action will be accepted for 30 days following the publication date of the notice. You may submit comments on the website or send them to:
• Raised synthetic grass playing field • The Esplanade – a broad, half-mile long, raised walkway • A 43-foot-high scenic overlook at the northeastern end of the park During remediation and site redevelopment, possible risks to the public will be low. To minimize the amount of leadcontaining dust or silt that is generated and keep it from being transported offsite, the County will:
Erik Beach, Planner Arlington County Department of Parks, Recreation, and Cultural Resources 2100 Clarendon Boulevard, Suite 414 Arlington, VA 22201
• Control construction traffic using signs and flagmen, as needed.
Phone: (703) 228-3318 Fax: (703) 228-3328
• Spray exposed soil with water to suppress dust.
E-mail: [email protected]
• Decontaminate vehicles before they leave the site. • Maintain sediment and erosion controls. Workers will be required to wear personal protective equipment to prevent accidentally inhaling or swallowing dust containing lead. Personnel involved in the remedial action will be properly trained and medically monitored, in accordance with U.S. Occupational Safety and Health Administration requirements. Site Controls for Ongoing Protection
After remedial action is complete, Arlington County will establish and maintain long-term site controls, as necessary for long-term protection of human health and the environment. Site controls will consist of deed restrictions, a prohibition on using groundwater at the site, and other engineering controls, similar to those at other redeveloped brownfield sites across the U.S.
3
Potomac River
ks
rac dT
a ilro
a XR
CS
Reagan National Airport
395
O
ld
Je
ffe
rs
on
vis Da
gh Hi
wa
y
oa
dT
rac
ls
Parcel 15
St k ar
XR CS
Crystal City
St
S. B
al lS
t
S.
Cl
ailr
Former Davis Industries Parcel 14 6t h
Roaches Run Waterfowl Sanctuary
Legend Parcel Boundary Long Bridge Park Boundary
0
100 200
400 Feet
Figure 1 − Location of Long Bridge Park and Parcels 14 and 15
