Washington Gas East Station Site YOUR AMERICA Operable Unit 1 - - PowerPoint PPT Presentation

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Washington Gas East Station Site YOUR AMERICA Operable Unit 1 - - PowerPoint PPT Presentation

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National Park Service and National Park Service and National Park Service and District Department of the Environment District Department of the Environment District Department of the Environment Washington Gas East Station Site: OU1

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SLIDE 1

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

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Washington Gas – East Station Site Operable Unit 1 Cleanup Public Meeting

December 11, 2014

Photo credit: DDOT, 1963

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SLIDE 2

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

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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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SLIDE 3

National Park Service and District Department of the Environment

Washington Gas – East Station Site: OU1 Cleanup Public Meeting

EXPERIENCE YOUR AMERICA

3

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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SLIDE 4

National Park Service and District Department of the Environment

Washington Gas – East Station Site: OU1 Cleanup Public Meeting

EXPERIENCE YOUR AMERICA

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Government Property Former Washington Gas Manufactured Gas Plant

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SLIDE 5

National Park Service and District Department of the Environment

Washington Gas – East Station Site: OU1 Cleanup Public Meeting

EXPERIENCE YOUR AMERICA

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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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SLIDE 6

National Park Service and District Department of the Environment

Washington Gas – East Station Site: OU1 Cleanup Public Meeting

EXPERIENCE YOUR AMERICA

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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 AMERICA

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National Park Service and District Department of the Environment

Washington Gas – East Station Site: OU1 Cleanup Public Meeting

EXPERIENCE YOUR AMERICA

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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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SLIDE 9

National Park Service and District Department of the Environment

Washington Gas – East Station Site: OU1 Cleanup Public Meeting

EXPERIENCE YOUR AMERICA

9

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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SLIDE 10

National Park Service and District Department of the Environment

Washington Gas – East Station Site: OU1 Cleanup Public Meeting

EXPERIENCE YOUR AMERICA

10

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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SLIDE 11

National Park Service and District Department of the Environment

Washington Gas – East Station Site: OU1 Cleanup Public Meeting

EXPERIENCE YOUR AMERICA

11

For more information: http://www.nps.gov/nace/parkmgmt/ washingtongas.htm

  • r Google “NPS Washington Gas”

Or contact National Capital Parks-East headquarters at 202-692-6066.