87th Air Base Wing Joint Base McGuire-Dix-Lakehurst Restoration - - PowerPoint PPT Presentation

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87th Air Base Wing Joint Base McGuire-Dix-Lakehurst Restoration - - PowerPoint PPT Presentation

Mar 06, 2023 106 likes •885 views

87th Air Base Wing Joint Base McGuire-Dix-Lakehurst Restoration Advisory Board 12 September 2019 87th Air Base Wing Review of Action Items Mr. Curtis Frye, P.E. Chief, JB MDL Installation Support Section AFCEC/CZOE Action Items Request

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87th Air Base Wing

Joint Base McGuire-Dix-Lakehurst Restoration Advisory Board 12 September 2019

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87th Air Base Wing

  • Mr. Curtis Frye, P.E.

Chief, JB MDL Installation Support Section AFCEC/CZOE Review of Action Items

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“WIN AS ONE”

Action Items

 Request to provide current pH level for each well at Dix

MAG-1 site, SS007

  • Included in tonight’s presentation

 Request updated schedule on when McGuire NPL RODs will

be submitted for review

  • Included in tonight’s presentation

 Request to provide figure of BOMARC surface water data

  • Included in tonight’s presentation

 Question on whether there has been any investigations of old

incinerator building at Dix

  • Final Preliminary Assessment/Site Investigation Report for

Fort Dix, Jan 1989 AR# W175093 - “Old Incinerator” site was inspected but no sampling recommended

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Action Items

 Request to provide list of previously closed sites, including those

closed prior to the performance based remediation (PBR) contract

  • Lists provided, organized by base:
  • McGuire (28)
  • Dix (48)
  • Lakehurst (35)
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Sites Closures Achieved to Date at McGuire (28)

OW522 - Oil Water Separator* 2017/09/20

OW526 - Oil Water Separator* 2017/09/20

OW511 - Oil Water Separator* 2018/06/26

OU518 - Oil Water Separator* 2018/06/26

TU022 - Underground Storage Tank (UST) E187* 2017/09/20

SS017- Contaminated Soil along Conduit* 2017/11/13

AT030 - BOMARC Above Ground Storage Tank* 2017/10/30

TU010 - UST E051* 2018/04/24

DP501 - Dry well at B1907* 2018/04/19

TU078 - UST E078 at Falcon Court East* 2017/09/27

TU080 - UST E080 at Falcon Court East* 2017/09/27

TU087 - UST E087 at Falcon Court East* 2017/09/27

TU088 - UST E088 at Falcon Court East* 2017/09/27

TU089 - UST E089 at Falcon Court East* 2017/09/27

TU090 - UST E090 at Falcon Court East* 2017/09/27

“WIN AS ONE”

TU026 - Spill Site 26/UST E123* 2019/02/12

TU028 - UST E237* 2019/02/12

WP017 - BOMARC Acid NRTL Pit 1991/09/27

PL024 - Spill at Building 1835 2012/10/12

OT012 - BOMARC Transformer Loc 1994/09/21

LP002 - Lead Contamination at B2837 2009/12/08

ST015 - BOMARC MOGAS UST* 2019/07/22

TU034 - 3500 Area 2014/11/24

TU001 - Spill Site/UST E168 2012/10/12

TU014 - UST Building 2415 2012/10/12

TU016 - UST Building 1811 2013/01/09

TU019 - Spill Site/UST E150 2013/01/09

RW001 - BOMARC Missile Accident Site 2009/08/21 * site achieved SC under PBR contract

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Sites Closures Achieved to Date at Dix (48)

OW576 - Oil Water Separator* 2018/07/24

TU968 - Building 5348 (UST)* 2015/09/04

SA018 - ANC-2 Disposal Area* 2018/11/13

AT024 - Fire Training Tanks 2009/09/01

DA022

  • Boiler Blowdown Area 2009/06/01

DP032 - PBAS Basin 2009/06/01

IN003 - Resource Recovery Facility 1992/03/01

NW046 - Pathological Landfill 2012/04/06

LF015 - ANC-9 Landfill 2000/06/01

LF033 - PDO Landfill 2019/04/18*

OW556 - Oil Water Separator 2014/01/22

OW561 - Oil Water Separator 2014/01/22

OW565 - Oil Water Separator 2014/01/22

OW566 - Oil Water Separator 2014/01/22

OW564 - Oil Water Separator 2014/01/22

“WIN AS ONE”

PS006 - Pesticide Control Shop 2011/06/02

SA023 - Paint Shop 2000/06/01

SA027 - Hazardous Waste Storage Area 1997/06/01

SA029 - PCB Transfer Storage Area 2000/06/01

SA030 - MAG-2 Area 1997/06/01

SR008 - Range Impact Area 1997/01/01

SS005 - Spill Sites 1997/01/01

SS028 - Motor Pools 1997/01/01

SS031 - Bivouac 5 Washracks 2000/06/01

SS034 – Transformers 1997/01/01

SS035 - Pesticide Mixing and Storage Area 2014/09/14

ST002 - Old Sewage Treatment Plant 2000/06/01

TT013 - POL Area 2002/08/01

NW043 - Building 4304 2014/11/10

NW045 - Building 5339 2019/04/18* * site achieved SC under PBR contract

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Sites Closures Achieved to Date at Dix (48) (cont’d)

TU012 - TMP UST 2002/08/01

TU019 – USTs 2014/01/29

TU021 - Area North of Dogwood Lake 2003/08/14

TU971 - Texas Ave Frmr Barracks Area H/O USTs 2014/11/10

TU924 - Remediation of Building 0199, UST Site 2019/04/18*

TU953 - Remediation of Building 4436, UST Site 2014/01/26

TU963 - Remediation of Building 5216, UST Site 2015/02/23

TU966

  • Remediation of Building 5317, UST Site 2015/02/23

TU958 - Remediation of Bldg 5374, UST Site (TMP) 2014/01/26

TU964 - Remediation of Building 9906, UST Site 2015/02/23

TU961 - POL Area 2014/01/26

TU952 - Area 6500 &6700 USTs 2014/01/26

TU937 - Area 5100 USTs 2014/10/29

TU957 - Area 9650 UST 2012/09/25

TU579 - Building 4201 (Firestone Building) 2019/04/18*

“WIN AS ONE”

TU580 - Area 0200 (Colonial Cottages) 2014/10/14

TU581 - Former Barracks Area 2014/11/10

FR004A - Practice Mortar Site 2007/11/02 * site achieved SC under PBR contract

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Sites Closures Achieved to Date at Lakehurst (35)

AT030 - Recovery Systms Sites Trk 4 Rcvry End 1991/09/30

CS003 - Drainage Dtch @ Rnwy Arrstd Lndng Site 2004/10/05

DA005 - Arrsting Engine RSTS Track 2 Bldg 371 1992/03/01

DA007 - Catapult Test Facility Storage Area 1993/09/27

DA008 – Building 529, Arresting End of Track 1 2005/10/04

DA009 - Hangar 2 Disposal Area (DA) 1993/09/27

DA015 - Disposal Area Near Bldg 562 Prkng Lot 1991/09/30

DA020 - Tetraethyl Lead Disposal Site 1993/09/27

DA021 - Jet Car Maintenance Shop 1992/03/01

DA023 - Inactive DA at Bldg 524 1991/09/30

DA025 - Test Department DA 1993/09/27

DA026 - Contractor DA North of Bldg 337 1991/09/30

DA027 - Recovery Systems Test Sites 1991/09/30

DA028 - Westfield Hangar Area 2004/10/05

DA034 - Parachute Jump Circle 2004/10/05

DA035 - Helicopter Defueling Area 1993/06/21

DA036 - Former Hangar 1 Liq Waste DA 1993/09/27

DA037 - Former Fuel Disposal & Drum Storage Area 1993/09/27

“WIN AS ONE”

DA038 - Oil Skimming & Sewage DA 1993/06/21

DA040 - Soil Stabilization Field Test Site 1991/09/30

DA044 - PCB Storage and Test Areas 1991/12/31

DA045 - Area adjacent to AF BOMARC Site 1991/09/30

DP018 - Naval Exchange Gas Station 1991/09/30

DP033 - Refueler Repair Shop Bldg 345 1993/09/27

SA010 - MOGAS Station 2004/10/05

SA011 - Hangar 5 Storage Area 1993/06/21

SA019 - Sats Catapult (7401 Test Site) 1992/01/03

SA022 - Jet Blast Deflector 1993/09/27

SA024 - Catapult Test Site 7419 1993/09/27

SA043 - Advncd Undgrd Warfare Strge B343 2004/010/05

SS001 - Blimp Crash Site 2004/09/01

SS002 - Experimental Site at RSTS Track 2 1993/06/21

SS039 - POL Disposal Site 1993/09/27

TT012 - Abandoned Fuel Storage Faclty 141 1993/09/27

XU041 - Ordnance Impact Area 2004/09/01

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PFOS/PFOA Investigation Update

 Basewide Site Inspection (SI) final report Jan 2019  Off-Base Expanded Site Inspection ongoing (Cape-Weston)

  • Use EPA Lifetime Health Advisory (70 ppt) for response decisions
  • Responses to date:
  • 2 properties bottled water (Area 18)
  • 2 properties granular activated carbon system (Area 18)
  • 1 property reverse osmosis system (Area 16)
  • Connection to municipal water in Manchester Township (Area 18) :
  • 1 property connected mid-September
  • 4 properties, connection under design, planned for connection in 2020
  • Routine monitoring ongoing at all properties with detections of

PFOS/PFOA (26)

  • Installation of several off-base groundwater wells planned to confirm

adequacy of off-base sampling areas for potential drinking water impacts

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PFOS/PFOA Investigation Update

PFC Areas Packages Distributed Total Responses Samples Response Percentage Routine Monitoring Locations 4 42 30 30 71% 1 14 40 27 27 68% 1 16 98 75 72 77% 13 17 77 53 51 69% 6 18 10 9 9 90% 5 TOTALS: 267 194 189 74% 26

Off-Base Drinking Water Sampling Status

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McGuire Area 4

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Dix Area 14

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Lakehurst Areas 16 & 17

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Lakehurst Area 18

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PFOS/PFOA Investigation Update

 On-Base Actions/Projects:

  • Completed installation of Ion exchange resin treatment system for 2
  • n-base backup wells at JBMDL-Lakehurst (Tanaq-HGL) (April 2019)
  • Install new deep well at JBMDL-Lakehurst (Cape-Weston)

 Draft Engineering Evaluation/Cost Analysis (EE/CA) submitted Aug 2019  Draft Action Memo planned for Sept 2019  50% design  Water Allocation Permit and Major Modification Permit planned for fall

2019

  • Update Base/Regional Conceptual Site Model (CSM) (Tehama-HGL

with USGS)

 Multi-year effort (2018-2020)  Includes modeling/mapping for groundwater/surface water to

support future investigations

  • Remedial Investigation programming decisions planned for FY20
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Lakehurst Proving Grounds Jump Circle Removal Action - ZZ003

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 Contract award planned via Army Corps Huntsville -

September 2019

 Updated work plan (redline) - December 2020  Start fieldwork prior to bird nesting season - April

2020

 Pre-operational survey - May 2020  Disposal pit excavations - June-August 2020

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McGuire Skeet Range Removal Action – TS875

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 Erosion & sediment control installed - end of July 2019  Grubbing/chipping completed - early August 2019  Public comment period for review of Administrative

Record ended 26 August 2019

 Pre-excavation sampling conducted end of August

through early September 2019

 Soil removal scheduled to be performed October

through December 2019

 Removal Action Report spring 2020

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87th Air Base Wing

  • Mr. Tom Crone, Deputy Project Manager

Arcadis

JB MDL PBR CONTRACT UPDATE

1

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SUMMARY OF PROGRESS

 Continued development and submittal of National Priorities List (NPL) documents for the McGuire

Area Operable Units (OUs)

  • Continued progress across all OUs
  • OU3 Record of Decision (ROD) approved by USEPA and NJDEP, in for Air Force signature
  • OU1 Feasibility Study (FS) is nearly complete and OU1 Proposed Plan (PP) under review by USEPA/NJDEP (2020 ROD)
  • OU4 and OU5 FS under review by USEPA/NJDEP and PPs have been prepared (2020 RODs)

 State led sites at McGuire and Dix

  • Remedies in place operating well (additional remediation at TU003 started last week)
  • Several (more) sites moving toward completion

 Active remedies (air sparge [AS]/soil vapor extraction [SVE] systems)

  • All in place and operating at Lakehurst (Area A/B/C)
  • McGuire (TU023 was optimized/TU013 rebound study showed need for more remediation)
  • Dix (NW044/TU019a were optimized,TU970 rebound study and data show cleanup goals achieved)

 Continued progress closing out sites (7 more since last RAB)

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PBR UPDATE

McGUIRE NPL SITES

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McGuire Update Operable Unit 1 (OU1) Summary

Operable Unit 1: Two former landfill sites and one former recycling yard Status: Revised Draft Final Feasibility Study (FS) under AF review EPA has Draft Proposed Plan (PP) AF has reviewed ROD - On track for a ROD FY19 Started Pre-Design investigation of LF003 landfill cover Path forward: FS finalization Fall 2019 (evaluates containment remedies (various types of landfill caps) PP and Public Meeting Fall 2019 ROD FY20 Remedial Action will be implemented 2020

“WIN AS ONE”

FS FY19 PP FY20 ROD FY20 REMEDY FY20 Work started on next document Work pending

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OU1 (LF003) Pre-Design Investigation

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OU1 (LF003) Pre-Design Investigation

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OU1 (LF004) Pre-Design Investigation

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OU1 (LF004) Pre-Design Investigation

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OU1 (LF004) Pre-Design Investigation

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OU1 (LF004) Pre-Design Investigation

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McGuire Update OU2 Status Summary

Operable Unit 2: 10 sites: Former aircraft maintenance; oil water separators; former power plant; etc. Status: Draft Final FS under preparation (responding to regulator comments). Draft Final FS planned to EPA/DEP this Fall Path forward: FS evaluates groundwater remedies (in-situ chemical oxidation [ISCO]; AS/SVE; hydraulic containment; monitored natural attenuation [MNA]) and excavation or land-use restrictions for soils PP and Public Meeting Spring 2020 ROD FY21 Remedial Action to be implemented 2022

“WIN AS ONE”

FS FY19 PP FY21 ROD FY21 REMEDY FY21/22 Work started on next document Work pending

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McGuire Update Operable Unit 3 (OU3) Summary

Operable Unit 3: Three former landfill sites and one sludge disposal site Status: PP final and public meeting held December 2017 (soil covers and long term management [LTM]) Discarded and expended 106 mm cartridges (primers may be intact) found in limited area at LF019 and a removal action will be required before the ROD can be finalized Path forward: Time Critical Removal Action to remove discarded cartridges ROD (now 2) FY19 with second ROD for LF019 in FY20 due to timing of munitions removal action Pre-design work for landfill covers conducted 2019 Remedial Action will be implemented 2020 unless delayed by removal action timing

“WIN AS ONE”

FS Complete PP Complete ROD FY19 REMEDY FY20 Work started on next document Work pending

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McGuire Update Operable Unit 4 (OU4) Summary

Operable Unit 4: Bulk Fuel Storage Facility (Jet Fuel) Status: Draft Final FS under preparation (responded to regulator comments). Final FS Fall/Winter 2019 Path forward: FS evaluates active fuel recovery, partial excavation, natural source zone depletion (similar to MNA), and thermally enhanced biodegradation Well Installation within secondary containment completed PP and Public Meeting 2020 ROD FY20 Remedial Action to be implemented 2021

“WIN AS ONE”

FS FY19 PP FY19 ROD FY20 REMEDY FY21 Work started on next document Work pending

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OU4 Well Installation

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OU4 Well Installation

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OU4 Well Installation

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McGuire Update OU5 Status Summary

Operable Unit 5: One former aircraft maintenance area; two former pesticide handling facilities Status: Revised Draft Final Feasibility Study (FS) under EPA review. Final FS expected Fall/Winter 2019 Path forward: FS evaluates AS/SVE; ISCO; MNA; soil excavation; land-use restrictions; no further action) PP and Public Meeting 2020 ROD FY20 Remedial Actions to be implemented 2021

“WIN AS ONE”

FS FY19 PP FY20 ROD FY20 REMEDY FY21 Work started on next document Work pending

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McGuire Update OU6 Status Summary

Operable Unit 6: Historical ruptures of the refueling system beneath the aircraft apron Status: Final Remedial Investigation Report Addendum under EPA review AF comments on FS addressed and under AF review Path forward: FS evaluates active groundwater remedies (AS/SVE; ISCO; pump-and-treat) and MNA PP and Public Meeting in Winter 2020 ROD FY21 Remedial Action to be implemented 2021/2022

“WIN AS ONE”

Work started on next document Work pending FS FY19 PP FY20 ROD FY21 REMEDY FY21/22

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McGuire Update Operable Unit 7 (OU7) Summary

Operable Unit 7: Four former industrial sites Status: Remedial Investigation Report approved Summer 2018 Draft FS has been reviewed by AF Path forward: Pilot Study moving forward now (in-situ remediation) FS scheduled for submittal to EPA 2020 (pending pilot test) PP and Public Meeting 2021 ROD planned for FY22 Remedial Action to be implemented Winter 2022

“WIN AS ONE”

FS FY19 PP FY20 ROD FY21 REMEDY FY22 Work started on next document Work pending

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McGuire Update Operable Unit 8 (OU8) Summary

Operable Unit 8: Five sites in the Triangle Area: Former Fire Training Areas/Aircraft Loading Areas Status: Remedial Investigation Report approved summer 2018 Internal Draft FS to AF Fall 2019 Path forward: Pilot Study moving forward now (in-situ remediation) FS scheduled for submittal to EPA/DEP 2020 (pending pilot test) PP and Public Meeting Spring 2021 ROD scheduled for FY22 Remedial Action to be implemented 2022

“WIN AS ONE”

FS FY19 PP FY20 ROD FY21 REMEDY FY22 Work started on next document Work pending

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McGuire NPL RODs by Fiscal Year (FY)

  • Accelerate OU2 to CY20 if possible
  • OU7 and OU8 pending EPA capacity could move to FY21

FY19 FY20 FY21 FY22 OU3 (Complete) OU1 (Dec 2019) OU2 (Aug 2020) OU7 (Dec 2020) OU4 (Apr 2020) OU6 (Sept 2020) OU8 (May 2021) OU5 (June 2020) Final ROD by FY (Draft submittal to EPA/DEP)

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PBR UPDATE

McGUIRE STATE LED SITES

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McGuire State Led Sites Status Snapshot

Oil Water Separators OW511; OW518; OW522; OW526 SC NFA SC Achieved TU010 SC NFA SC Achieved SS017 SC NFA SC Achieved AT030 SC NFA SC Achieved DP501 SC NFA SC Achieved TU022 SC NFA SC Achieved Falcon Court East TU078; TU080; TU087; TU088; TU089; TU090 SC NFA SC Achieved SS015 RC RC achieved. Groundwater addressed as OU6 TU033 SC NFA SC Achieved (pending DEP letter) TU029 RC RC achieved. Groundwater addressed as OU7 OW503a SC NFA SC Achieved (pending DEP letter) SS502 SC NFA SC Achieved (pending DEP letter) Category Site Number Status/Phase Comments Oil Water Separators OU549 RI Report Additional RI data collected at OW549, report underway. LF500 RAWP RAWP being reviewed by AF CF011 Remedial Action RAWP approved. MNA ongoing TU020 Remedial Action RAWP approved. MNA ongoing TU027 Remedial Action RAWP approved. MNA ongoing TU003 Remedial Action RAWP approved. Initial removal action complete but additional action needed. Started last week. TU023 Remedial Action RAWP approved. Biosparge system in place. Optimized summer 2019. TU025 Remedial Action RAWP approved. MNA ongoing. TU013 Remedial Action RAWP approved. AS/SVE system restarted after rebound study TU018 SC Remedy successful. Closure documentation with DEP, wells need decommissioned. SC: Remediated to residential standards and no use restrictions RC: Remediated to industrial use standards. Use is restricted. UST Sites/petroleum spill sites

Completed Sites (15…20) Active Sites (15…10)

UST Sites/petroleum spill sites UST Sites/petroleum spill sites

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TU003 Site Layout and Overview

 Compliance Drivers:

  • LNAPL
  • Soil RDCSRS
  • GW Class I-PLs

 First: (AS/SVE) – pilot test

completed but did not support this approach

 Second: (focused excavation and

monitoring) – source removal completed in 2017; residual LNAPL and GW impacts remaining and require additional action

2913-MW18

Well with LNAPL (currently or historically) Approximate Extent of Site Impacts (soil, GW, and LNAPL)

Former source area (gasoline USTs)

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Remedial Alternatives Analysis

 Remedial Alternatives Considered

  • Thermal In-situ Sustainable Remediation (TISR)

(includes bioventing/passive skimming where possible as an adaptive design enhancement)

  • Excavation

 Post-Remediation Closure Monitoring

  • Groundwater monitoring to demonstrate compliance over two consecutive

events

  • LNAPL meets NJDEP sheen guidance requirements
  • Soil compliance sampling (if required based on remedy)
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Overcoming Low Permeability

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TISRTM – Technology

Performance at DoD Base in NY

  • Average of ~11 °F

increase in GW temperature up to 8 feet of ROI

  • Excess heat forced

shut down system (collection side)

  • 99.9% reduction in

concentration in 2 years

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PBR UPDATE

LAKEHURST SITES

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Sites AT016, LF042, TT013, TT017

  • Three new AS/SVE and biosparge systems were installed in 2017/2018 and

are operating to address remaining contamination in groundwater and soil

  • These systems are now fully operational and monitoring/maintenance is ongoing
  • Reduce contaminant concentrations in groundwater and soil to meet Remedial

Goals in 2 to 3 years time (2021/2022)

  • Pump and treat system at Area H was shut down in March for a 2-year plume

stability study to determine the next remediation phase

  • Semi-Annual or Annual groundwater sampling is on-going at remaining

Lakehurst sites each April and November

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LF042 (Area A/B)

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TT013 (Area A/B)

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TT017 (Area C)

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PBR UPDATE

DIX SITES

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Dix State Led Sites Status Snapshot

O/W Separator OW576 SC NFA SC Achieved UST Sites/petroleum spill sites TU968 SC NFA SC Achieved Non NPL Site SA018 SC NFA SC Achieved CERCLA Non NPL LF033 SC NFA SC Achieved TU579 SC NFA SC Achieved NW045 SC NFA SC Achieved TU924 SC NFA SC Achieved CERCLA Non NPL LF016 RC ROD and RACR approved by DEP. Groundwater monitoring selected CERCLA Non NPL LF010 LTM Sanitary landfill in LTM CERCLA Non NPL LF017 LTM Landfill in LTM Category Site Number Status/Phase Comments NW044 Remedial Action RAWP approved. AS/SVE ongoing. Optimized Summer 2019 TU019a Remedial Action RAWP approved. AS/SVE ongoing. Optimized Summer 2020 TU970 Remedial Action RAWP approved. Remedy successful. Closure documentation being prepared. TU011 Remedial Action RAWP approved. MNA with additional removal action required TU578 Remedial Action RAWP approved. MNA on‐going, additional remediation required TU969 Remedial Action RAWP approved. MNA on‐going, additional remediation required NW042 Decision Document AF signing DD, Remedial Design under review. SS007 Remedial Action GW treatment and recirculation pilot test complete SS005B Remedial Action MNA on‐going SS025 Remedial Action SW standards are met. RACR being reviewed by AF, SC next SC: Remediated to residential standards and no use restrictions RC: Remediated to industrial use standards. Use is restricted.

Completed Sites (3…10) Active Sites (17…10)

CERCLA Non NPL UST Sites/petroleum spill sites UST Sites/petroleum spill sites

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Air Sparge (AS)/Soil Vapor Extraction (SVE)

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AS/SVE Optimization (NW044/TU019a/TU023)

Install additional wells to expand existing treatment zones or create new zones

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AS/SVE Optimization (NW044/TU019a/TU023)

Trenching to connect new wells to existing system

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AS/SVE Optimization (NW044/TU019a/TU023)

Make connections and install controls to allow for future optimization. Regrade/restore the site.

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PBR UPDATE

BOMARC

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BOMARC Site Location

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BOMARC Site Plan

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42 Single Air Compressor for OT016 and WP005 Conveyance lines for OT016 below grade Conveyance lines for WP005 above grade Minimal wetlands intrusion

BOMARC - Air Sparge System Layout

BOMARC UPDATE

 RD reviewed by

Air Force

 RD is being

prepared for NJDEP

 Remedial

construction planned for 2019/2020.

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BOMARC Conceptual Site Model

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Regional Watershed

BOMARC Plume

  • Surface waters from BOMARC discharge to Success Branch generally

moving north/northeast to Borders Mill Branch to Ridgeway Branch ultimately feeding into Union Branch and Toms River.

General Flow Direction TCE Plume Discharge Area

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Historical Surface Water Sample Locations and Results

  • Highest TCE detection at SW-11 (186 ppb) in 2009
  • Limited detections of TCE degradation products (1,2-

DCE and vinyl chloride)

  • Upstream sampling of Elisha Branch and the unnamed

tributary between 1999 – 2014 confirms no significant impacts

  • TCE concentrations continue to decline further

downstream in Success Branch and Borders Mill Branch; but TCE was still present

  • Samples collected in 2018 show TCE has decreased

from 2014 concentrations

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2018 Surface Water (TCE) Sample Results

OT16‐SW104 5/2013 3/2014 6/2014 9/2014 10/2018 17.7 12.4 7.5 11.1 0.3 OT16‐SW105 5/2013 3/2014 6/2014 9/2014 10/2018 17.3 20.2 12.1 20.2 15 OT16‐SW103 5/2013 3/2014 6/2014 9/2014 8/2018 ND ND ND 0.45 ND

Trichloroethene (TCE)

  • Results are µg/L or

‘part per billion’ (ppb)

  • Remedial Goal for

both groundwater and surface water is 1 µg/L

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PBR UPDATE

MAG-1 Area (SS007)

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Agenda

 Status in the CERCLA process  MAG-1 (SS007) Site History/Remedial Overview  Extent of Contamination  Revised Remedial Action Overview - Dynamic Groundwater Recirculation

(DGR)

 Planned Field Activities and Implementation Schedule

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“WIN AS ONE”

MAG-1 (SS007) Site Location

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MAG-1 Area

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Status of CERCLA* Process

Preliminary Assessment Site Inspection Remedial Investigation Feasibility Study Proposed Plan Record of Decision Remedial Design Remedial Action

Long Term Management

Remedial Investigation (RI) - characterization of site Feasibility Study (FS) - assessment of possible remedies Proposed Plan (PP) - solicit public input on preferred remedy Decision Document (DD) - remedy selection Remedial Design (RD) - remedy implementation plan Remedial Action (RA) - remedy implementation

*Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA)

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Site History/Remedial Overview

 Decision Document Finalized in August 2002 Remedy for Groundwater

  • In-situ bioremediation (~12-16 months)
  • Monitored Natural Attenuation (~ 20 years)

 Biostimulation/bioaugmentation remedy with groundwater circulation was

active from October 2011 to September 2015

  • Trichloroethene (TCE) was readily converted to cis-1,2-dichlorethene (DCE)
  • Generation of reducing conditions

 Monitored Natural Attenuation (MNA) evaluated for two years via quarterly

groundwater monitoring

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Remedial Overview (Cont.)

 pH of Groundwater:

  • Baseline conditions before initiation of bioremediation remedy - Ranged

between 3 – 5

  • During active bioremediation - Ranged between 5.5 – 7.0

 Sodium hydroxide was used as a pH buffer

  • October 2018 - Ranged between 3.09 – 7.60 across the annual sampling

monitoring well network with an average measurement of 4.73

pH Field Measurements in October 2018 (Annual Sampling Event) Well ID MAG-04 MAG-107A MAG-65 MAG-66 MAG-KW3 MAG-KW6 MAG-102B MAG-104B MAG-112P MAG-203 MAG-204 MAG-207 pH 5.40 6.72 3.33 7.60 3.09 6.02 3.78 3.12 6.56 3.71 4.05 3.36

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Extent of Contamination

Constituents of Concern (COCs) are limited to:

  • TCE
  • Cis-1,2-DCE
  • Vinyl Chloride
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Extent of Contamination (Cont.)

 Statistical analysis performed

using the last two years of MNA groundwater data suggest MAG-1 is not on target to achieve remedial goals within the project cleanup timeframe

 No immediate downgradient

receptors of the Site

 Natural attenuation

calculations predict the extent

  • f the plume will not extend

past site boundary at concentrations above applicable standards

Groundwater Velocity= 90 Feet/Year Distance to Reach TCE Remedial Goal= 1363 Feet

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Dynamic Groundwater Recirculation (DGR) Overview

DGR System Operation

  • Groundwater extracted

via new extraction wells

  • Treated using granular

activated carbon

  • Treated water is

reinjected upgradient into existing wells to enhance contaminant flushing

(TWO) (TWO) (TWELVE)

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Planned Field Activities

 Well Installation/Redevelopment of Existing Wells: Fall 2019  System Construction: Fall 2019 through Spring 2020  System Startup/Shakedown: Spring 2020  Performance Monitoring: Quarterly Sampling at 5 Monitoring Wells During

the First Two Years of System Operation

 Compliance Monitoring: Semi-annual Sampling at 7 Monitoring Wells

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PBR UPDATE

SITE CLOSEOUT UPDATE

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Site Closures under the PBR

  • Moving numerous sites to closeout status
  • Closeout means:
  • Remedial Goals have been achieved
  • Site restoration infrastructure removed
  • Site is released for unrestricted use

“WIN AS ONE”

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Sites Closures Achieved Since 2014 (20…27)

DIX

TU968 - Building 5348 (UST)

LF033 – PDO Landfill*

SA018 - ANC-2 Disposal Area*

TU579 – Firestone Building

NW045 – Building 5339*

TU924 – Building 0199 UST

OW576 - Oil Water Separator LAKEHURST

None McGUIRE

OW522 - Oil Water Separator

OW526 - Oil Water Separator

OW511 - Oil Water Separator

OU518 - Oil Water Separator

TU022 - Underground Storage Tank E187

  • Contractual endpoint of RIP/RC was exceeded

“WIN AS ONE”

McGUIRE (cont.)

SS017- Contaminated Soil along Conduit

AT030 - BOMARC Above Ground Storage Tank

TU010 - UST E051

DP501 - Dry well at B1907

TU078 - Underground Storage Tank E078 at Falcon Court East

TU080 - Underground Storage Tank E080 at Falcon Court East

TU087 - Underground Storage Tank E087 at Falcon Court East

TU088 - Underground Storage Tank E088 at Falcon Court East

TU089 - Underground Storage Tank E089 at Falcon Court East

TU090 - Underground Storage Tank E090 at Falcon Court East

TU026 - Spill Site 26/UST E123

TU028 - Underground Storage Tank E237

TU033 – Fill Stand 3423 (pending DEP letter)

OW503a – POL Area 1838/1840 OWS 8 (pending DEP letter)

SS502 – NJANG Fuel Oil Spill Site (pending DEP letter)