EPA v. NAVY, DEPT OF NAVAL WEAPONS STATION YORKTOWN - CHEATHAM ANNEX

Case summary

THE EXPLANATION OF SIGNIFICANT DIFFERENCE (ESD) SEEKS TO MODIFY THE LONG-TERM MONITORING (LTM) REQUIREMENTS SPECIFIED IN THE 1996 RECORD OF DECISION (ROD) FOR SITE 12, LOCATED AT THE NWS-YORKTOWN NPL SITE. THE ESD WILL REMOVE THE DETAILS FOR LTM FOR SITE 12 FROM THE ROD, AND WILL, IN TURN, REQUIRE THOSE SPECIFICATIONS TO BE INCLUDED IN A LTM WORK PLAN, WHICH WILL BE PRIMARY DOCUMENT FOR REVIEW AND APPROVAL BY EPA. On August 13, EPA concurred on an Action Memo for the Navy?s Cheatham Annex site. The purpose of the Non-Time Critical Removal Action is to mitigate potential unacceptable human health and ecological risks from exposure to surface and subsurface soil contaminated with 2,4,6- TNT, 2-nitrotoluene and lead. Approximately 100 cubic yards of soil will be characterized, excavated and properly disposed of offsite. Excavated areas will be backfilled with clean fill and vegetated with low maintenance grasses and plants. This Action Memo represents a Federal Facility Mission Metric achieved for the month of August. NOTE: BASED ON ROD AMENDMENT ISSUED 06/09/11, WE ARE UPDATED NEW INFORMATION TO REFLECT THE FOLLOWING: THE RECORD OF DECISION (ROD) DOCUMENTS THAT NO ACTION IS REQUIRED FOR ALL MEDIA AT SITE 28, THE BUILDING 28 X-RAY FACILITY TANK DRAIN FIELD, LOCATED AT THE NWS-YORKTOWN NPL SITE. THE ROD ESTABLISHES THAT MINIMAL RISK TO HUMAN HEALTH AND THE ENVIRONMENT EXISTS AT SITE 28, AND THAT THERE IS NO NEED FOR LONG-TERM MONITORING, LAND USE CONTROLS, OR FIVE-YEAR REVIEWS FOR SITE 28. The Removal Action Memo for OU-12 documents approval for a surface soil and subsurface debris removal action for AOC-7 the drum disposal area and can pit, OU12. This is a Non-Time Critical Removal Action. The Removal Action for OU-10 documents approval for a surface soil and subsurface debris removal action for AOC-2 Dextrose Dump, OU10. This is a Non-Time Critical Removal Action. Removal (10/20/16) for OU-17 - Mitigate potential HH and ECO risks from exposure to surface and limited subsurface debris and surface soil, and preventing or minimizing transport of COCs to site media. NFA needed for sediment and groundwater. ROD (8/31/17) for OU-03 - No Further Action for soil, sediment and surface water. Removal (8/31/17) for OU-13 - TCRA to eliminate the potential for weather conditions that may cause COCs to migrate or be released from the site and to eliminate current and future leaching of COCs from debris to soil and/or groundwater. ROD (9/27/18) for AOC 6 - NFA for soil and groundwater in 2 subareas and groundwater for 3 subareas. Soil, sediment and surface water in the 3 subareas will be addressed in a separate ROD. In addition, Navy to remove 39 tons of non-haz soil and slag debris as part of a solid waste removal action

Defendants (1)

• NAVY, DEPT OF NAVAL WEAPONS STATION YORKTOWN - CHENamed in complaintNamed in settlement

Facilities (1)

• NAVAL WEAPONS STATION YORKTOWN - CHEATHAM ANNEX - SITE 28

  BLDG 284 CHASE RD, WILLIAMSBURG, VA, 23185

  Registry ID: 110006910174

Statutes cited

• CERCLA 120E — Federal Facility Interagency Agreement

Enforcement conclusions (8)

• NAVY, DEPT OF NAVAL WEAPONS STATION YORKTOWN - CHEATHAM ANNEX OU-12entered 2014-06-05

  Primary law: CERCLA

• NAVY, DEPT OF NAVAL WEAPONS STATION YORKTOWN - CHEATHAM ANNEX OUs 2 &15 (AOC 6)entered 2018-09-27

  Primary law: CERCLA

• NAVY, DEPT OF NAVAL WEAPONS STATION YORKTOWN - CHEATHAM ANNEX OU-10entered 2015-08-25

  Primary law: CERCLA

• NAVY, DEPT OF NAVAL WEAPONS STATION YORKTOWN - CHEATHAM ANNEX: OU-17 (AOC 1 North)entered 2016-10-20

  Primary law: CERCLA

• NAVY, DEPT OF NAVAL WEAPONS STATION YORKTOWN - CHEATHAM ANNEX (AOC 6 ASP & TNT SOIL (OU19) )entered 2020-08-13

  Primary law: CERCLA

• NAVY, DEPT OF NAVAL WEAPONS STATION YORKTOWN - CHEATHAM ANNEX (OU-1)entered 2009-09-29

  Primary law: CERCLA

• NAVY, DEPT OF NAVAL WEAPONS STATION YORKTOWN - CHEATHAM ANNEX: OU-13 (AOC 8)entered 2017-08-31

  Primary law: CERCLA

• NAVY, DEPT OF NAVAL WEAPONS STATION YORKTOWN - CHEATHAM ANNEX: OU-03 (Site 7)entered 2017-08-31

  Primary law: CERCLA

Timeline (3 milestones)

• 2005-03-01Complaint Filed/Proposed Order
• 2005-03-21Enforcement Action Data Entered
• 2020-08-13Final Order Issued