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

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 Cleanup Public Washington Gas – East Station Site: OU1 Cleanup Public Washington Gas – East Station Site: OU1 Cleanup Public Meeting Meeting Meeting EXPERIENCE Washington Gas – East Station Site YOUR AMERICA Operable Unit 1 Cleanup Public Meeting December 11, 2014 1 Photo credit: DDOT, 1963

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 Cleanup Public Washington Gas – East Station Site: OU1 Cleanup Public Washington Gas – East Station Site: OU1 Cleanup Public Meeting Meeting Meeting EXPERIENCE CONTAMINATED SOIL REMOVAL REMEDIAL ACTION YOUR AMERICA Lead Oversight National Park Service Agency (Former land manager ) Partner DDOE (Current Oversight land owner) Agency Company Washington Performing the Gas Light Cleanup Company 2

National Park Service and National Park Service and District Department of the Environment District Department of the Environment Washington Gas – East Station Site: OU1 Cleanup Public Washington Gas – East Station Site: OU1 Cleanup Public Meeting Meeting EXPERIENCE Washington Gas YOUR AMERICA East Station – Government Property 3 National Park Service Site Location Map

National Park Service and District Department of the Environment Washington Gas – East Station Site: OU1 Cleanup Public Meeting EXPERIENCE YOUR AMERICA Former Washington Gas Manufactured Gas Plant Government Property 4

National Park Service and District Department of the Environment Washington Gas – East Station Site: OU1 Cleanup Public Meeting 1983-1999 Washington Gas Investigations, EXPERIENCE YOUR Decision Document AMERICA 2012 NPS, DDOE, 2006 Government Washington Gas Property ROD Consent Decree 2014-2015 2017-2018 OU1 Remedial Government Action Property Reopens 5

National Park Service and District Department of the Environment Washington Gas – East Station Site: OU1 Cleanup Public Meeting Now through December EXPERIENCE January through April YOUR Two 2 years with AMERICA fence, and into the future Backfill Prepare Excavate Keep the with clean the up to 3 fill and remedy property topsoil, and feet protective for work plant grass 6

National Park Service and District Department of the Environment Washington Gas – East Station Site: OU1 Cleanup Public Meeting EXPERIENCE YOUR AMERICA 7

National Park Service and District Department of the Environment Washington Gas – East Station Site: OU1 Cleanup Public Meeting Next steps at the Government Property: EXPERIENCE YOUR AMERICA 1. Open a safe, accessible park OU1 two years after cleanup 1. Investigate subsurface OU2 contamination 2. Evaluate contaminant movement to Anacostia River 3. Assess risk to humans and environment 8

National Park Service and District Department of the Environment Washington Gas – East Station Site: OU1 Cleanup Public Meeting EXPERIENCE OU2 CERCLA Process YOUR AMERICA 2017* 2016* Record of 2015 Decision RI/FS Report Initiate RI and Proposed RI/FS Plan Work *Timing depends on Plan investigation results 9

National Park Service and District Department of the Environment Washington Gas – East Station Site: OU1 Cleanup Public Meeting General scope of the OU2 investigation: EXPERIENCE YOUR AMERICA  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 10

National Park Service and District Department of the Environment Washington Gas – East Station Site: OU1 Cleanup Public Meeting EXPERIENCE For more information: YOUR AMERICA http://www.nps.gov/nace/parkmgmt/ washingtongas.htm or Google “NPS Washington Gas” Or contact National Capital Parks-East headquarters at 202-692-6066. 11