washington gas – east station site experience...washington gas – east station site: ou1 cleanup...
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![Page 1: Washington Gas – East Station Site EXPERIENCE...Washington Gas – East Station Site: OU1 Cleanup Public Meeting EXPERIENCE YOUR AMERICA 5 1983-1999 Washington Gas Investigations,](https://reader034.vdocuments.site/reader034/viewer/2022042202/5ea2d37ca5640b4b276ad7a3/html5/thumbnails/1.jpg)
National Park Service and District Department of the Environment Washington Gas – East Station Site: OU1 Cleanup Public Meeting
EXPERIENCE YOUR
AMERICA
National Park Service and District Department of the Environment Washington Gas – East Station Site: OU1 Cleanup Public Meeting
National Park Service and District Department of the Environment Washington Gas – East Station Site: OU1 Cleanup Public Meeting
1
Washington Gas – East Station Site Operable Unit 1 Cleanup
Public Meeting
December 11, 2014
Photo credit: DDOT, 1963
![Page 2: Washington Gas – East Station Site EXPERIENCE...Washington Gas – East Station Site: OU1 Cleanup Public Meeting EXPERIENCE YOUR AMERICA 5 1983-1999 Washington Gas Investigations,](https://reader034.vdocuments.site/reader034/viewer/2022042202/5ea2d37ca5640b4b276ad7a3/html5/thumbnails/2.jpg)
National Park Service and District Department of the Environment Washington Gas – East Station Site: OU1 Cleanup Public Meeting
EXPERIENCE YOUR
AMERICA
National Park Service and District Department of the Environment Washington Gas – East Station Site: OU1 Cleanup Public Meeting
2
National Park Service and District Department of the Environment Washington Gas – East Station Site: OU1 Cleanup Public Meeting
National Park Service
(Former land manager)
DDOE (Current land owner)
Washington Gas Light Company
Lead Oversight Agency
Partner Oversight Agency
Company Performing the Cleanup
CONTAMINATED SOIL REMOVAL REMEDIAL ACTION
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National Park Service and District Department of the Environment Washington Gas – East Station Site: OU1 Cleanup Public Meeting
EXPERIENCE YOUR
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National Park Service and District Department of the Environment Washington Gas – East Station Site: OU1 Cleanup Public Meeting
Site Location Map
Washington Gas East Station – Government
Property
National Park Service
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National Park Service and District Department of the Environment Washington Gas – East Station Site: OU1 Cleanup Public Meeting
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Government Property
Former Washington Gas Manufactured
Gas Plant
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National Park Service and District Department of the Environment Washington Gas – East Station Site: OU1 Cleanup Public Meeting
EXPERIENCE YOUR
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1983-1999 Washington Gas Investigations, Decision Document
2006 Government Property ROD
2012 NPS, DDOE, Washington Gas Consent Decree
2014-2015 OU1 Remedial
Action
2017-2018 Government
Property Reopens
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National Park Service and District Department of the Environment Washington Gas – East Station Site: OU1 Cleanup Public Meeting
EXPERIENCE YOUR
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Prepare the
property for work
Excavate up to 3
feet
Backfill with clean
fill and topsoil, and plant grass
Keep the remedy
protective
Now through December January through April Two 2 years with
fence, and into the future
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National Park Service and District Department of the Environment Washington Gas – East Station Site: OU1 Cleanup Public Meeting
EXPERIENCE YOUR
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7
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National Park Service and District Department of the Environment Washington Gas – East Station Site: OU1 Cleanup Public Meeting
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Next steps at the Government Property:
1. Open a safe, accessible park two years after cleanup
1. Investigate subsurface contamination
2. Evaluate contaminant movement to Anacostia River
3. Assess risk to humans and environment
OU1
OU2
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National Park Service and District Department of the Environment Washington Gas – East Station Site: OU1 Cleanup Public Meeting
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RI/FS Work Plan
Initiate RI
RI/FS Report and Proposed Plan
Record of Decision
2015
2016* 2017*
OU2 CERCLA Process
*Timing depends on investigation results
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National Park Service and District Department of the Environment Washington Gas – East Station Site: OU1 Cleanup Public Meeting
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General scope of the OU2 investigation: Drilling to observe deep soils at the
Government Property Groundwater and soil sampling Monitoring well installation and sampling to
determine contaminant movement in groundwater
Sediment sampling Sampling groundwater beneath the river Surface water sampling
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National Park Service and District Department of the Environment Washington Gas – East Station Site: OU1 Cleanup Public Meeting
EXPERIENCE YOUR
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For more information: http://www.nps.gov/nace/parkmgmt/ washingtongas.htm or Google “NPS Washington Gas” Or contact National Capital Parks-East headquarters at 202-692-6066.