Agenda for December 12, 2019 Restoration Advisory Board ......Restoration Advisory Board. Ted Gabel Slow Progress Explanation from April 2019 RAB 5 MMRP sites in FS stage No Further

Ted Gabel

Agenda for December 12, 2019 Restoration Advisory Board Meeting

• Attendance, Introductions & Correspondence • Old Business/Action Items/Minutes• PFOA/PFAS Update (On and Off-Post): Lisa

Szegedi, Arcadis• Update on Area B and Area D: Hilary Williams,

EA• Overview of New Contract: Weston Solutions• Update in a minute (time permitting): Ted Gabel• Synopsis and Next Meeting

Ted Gabel

Update in a Minute

Installation Restoration Program (IRP) &

Military Munitions Response Program (MMRP)

December 12, 2019

Picatinny ArsenalRestoration Advisory Board

Ted Gabel

Slow Progress Explanationfrom April 2019 RAB

5 MMRP sites in FS stage

No Further Action IRP and MMRP Sites in Proposed Plan Stage

Ted Gabel


Major Historical Delays

Procurement Delays:1. ARCADIS contract ended December of 2014; Contracts awarded in

summer of 2015

2. MOD to EA contract took about 15 months after the 5 Year Review came out.

Disputes between Army and USEPA: Formal and Informal

1. No risk –No ARAR Dispute: Almost 4 year delay for FS of 100 plus sites

2. Midvalley Groundwater Dispute

3. 5-Site Dispute

Ted Gabel


Still Waiting on EPA reviews:

• 45 Site Group A, B, C and D Proposed Plan (PP),

• PICA-111 PP,

• Picatinny Lake PP,

• RI Report for EEGPB, Ecological Risk Assessment now needed by Army

• Proposed Plan for Lake Denmark - Off-Post,

• Multi-Site MMRP Feasibility Study (Discussed today)

• Mortar and Skeet PP (Discussed today)

• Multiple annual reports and multiple evaluation reports

• Explanation of Differences for cleanup of Bear Swamp Brook

Ted Gabel

Factors that drove • EPA has told us that EPA is ‘limited’ to signing 2-3 RODs/yr;

Only one ROD signed FY 19.

• ECC and Army had required 17 RODs by June of 2020 when ECC contract ends:

• Contract Officer determined there is not enough time to conduct the 3 of the 4 remediation tasks.

• Cannot have two contracts doing the same thing. A line must be drawn.

Ted Gabel

ECC Contract ModificationECC responsible only for:• Final Record of Decision for 600 Hill Record of Decision (COMPLETED although must be PN)

• Proposed Plans to be Public Noticed:

• Mortar and Skeet Proposed Plan

• PICA-111 Proposed Plan

• Lake Picatinny Proposed Plan

• Remedial Investigation Report of EEGPB: Recommend NFA

• Completion of On-site MRSs Feasibility Study

• Submittal to regulators of the following Draft PPs:

• PICA-207 Proposed Plan (3 IRP Sites NFA and 1 dig and haul)

• Non-Lakes NFA Proposed Plan (12 Sites as NFA or NFA with monitoring)

• Shell Burial Grounds PP

• Proposed Plans for NFA 45 IRP Site Group

• NFA action of 2 Offsite MRSs PP

• Removal Report & Explanation of Differences for 3 Site Group: ESD IS COMPLETE

• Running the RAB and the Administrative Record

Ted Gabel

RI FS PP ROD RD RA RAR LTM/O Comments

Installation Restoration Sites: Sites with Record of Decision Documents

PICA 08 (Group 3 Sites) Complete Complete Complete Complete Complete Complete Complete OngoingCVOCs < 10 µg/L; Transition to MNA monitoring program

New Contract Needed June 2020

PICA 13 (Site 78) Complete Complete Complete Complete Complete Complete Complete OngoingTransitioned to 8th Quarter Sampling

New Contract Needed June 2020

PICA 20 (Group of 13 Sites)

Complete Complete Complete Complete Complete Complete Complete OngoingNew Contract Needed June 2020

LUCs

PICA 65 (Post Farm Landfill)

Complete Complete Complete Complete Complete Complete Complete OngoingNew Contract Needed June 2020

Transitioned to 8th Quarter Sampling.

PICA 66 (Site 20/24) Complete Complete Complete Complete Complete Complete Complete OngoingNew Contract Needed June 2020

LUCs

PICA 67 (Sanitary Landfill) Complete Complete Complete Complete Complete Complete Complete OngoingNew Contract Needed June 2020

LUCs

PICA 72 (Former DRMO) Complete Complete Complete Complete Complete Complete Complete OngoingNew Contract Needed June 2020

LUCs

PICA 76 (Area D GW) Complete Complete Complete Complete Complete Complete Complete OngoingNew Contract Needed June 2020

PRB/MNA LTM ongoing. Groundwater sampling & well installation complete

PICA 77 (Area E GW) Complete Complete Complete Complete Complete Complete Complete OngoingNew Contract Needed June 2020

MNA; next biennial sampling event for 2019 completed

Ted Gabel


Installation Restoration Sites: Sites with Record of Decision Documents

PICA 79 (Group 1 Sites) Complete Complete Complete Complete Complete Complete Complete Ongoing New contract required in June of 2020

PICA 93 (Waste Piles) Complete Complete Complete Complete Complete Complete Complete OngoingNew contract required in June of 2020

LUCs

PICA 102 (Waste Dumps) Complete Complete Complete Complete Complete Complete Complete OngoingLNew contract required in June of 2020

UCs

PICA 193 (Green Pond Brook)

Complete Complete Complete Complete Complete Complete Complete Ongoing New contract required in June of 2020

PICA 204 (Mid Valley GW) Complete Complete Complete Complete Complete Complete Complete Ongoing New contract required in June of 2020

PICA 205 (Area B GW) Complete N/A Complete Complete Complete Complete Complete Ongoing New contract required in June of 2020

25-NFA Sites Complete Complete Complete Complete Not Required - NFA New contract required in June of 2020

21-NFA Sites Complete Complete Complete Complete Not Required - NFA New contract required in June of 2020

Area C, Southern Boundary Groundwater

Complete Complete Complete Complete Complete Complete Complete Ongoing New contract required in June of 2020

PICA 207Complete Complete

December2019

Weston Contract

New contract required NFA with Monitoring of Land Use, except Site 173

action required

Ted Gabel


Installation Restoration Program Sites: Sites without Decision Documents

45 Site Group A

Complete CompleteComplete

(Draft)Weston Contract

Not Required – NFANew Contract

RequiredNFA with Monitoring of Land Use

45 Site Group B





45 Site Group C





45 Site Group D





PICA 111 Sites

Complete Complete Dec-19Weston Contract



3 Site GroupComplete Complete Complete Complete Complete Complete October 2019

On-going & New Contract Required Soil Removal Action at 3 Sites, LUCs

PICA 57 (Picatinny Lake)Complete Complete Feb-20

Weston Contract

New Contract RequiredArmy proposing Sediment Capping at Picatinny Lake Hotspots, LUCs

EOD Pond & Lake Denmark

Complete Complete Complete Complete Not Required – NFAOn-going & New

Contract Required

NFA with Monitoring of Land Use

Non Lakes Group

Complete Complete Jul-19 (Draft)Weston Contract



Eastern Edge of Green Pond Brook

Dec-19 Weston Contract Not Required – NFANew Contract

Required NJDEP commented on RI: may require an Ecological Risk Assessment

Ted Gabel

RI FS PP RODRD RA RAR LTM/O Comments

Military Munitions Response Sites

PICA-003-R-01 (1926 Explosion Radius); PICA-003-R-02 (Fuze Area); PICA-008-R-01 (Lakes MRS)

Complete Mar-20 Weston Contracts New Contract Required

PICA-006-R-01, 1926 Explosion Radius –Off-Post

Complete May-20 Weston Contracts New Contract Required

PICA-006-R-02 (Former Operational Areas Mortar Range); Former Skeet Range (CC-057)

Complete Complete Aug-19 Weston ContractNew Contract Required

PP was briefed last year

PICA-010-R-01, Shell Burial GroundsComplete Complete

Mar-20 (Draft)

Weston Contract New Contract Required

PICA-012-R-01, Lake Denmark – Off-Post Complete

Not Required if NFA

Complete(Draft)

Weston Contract New Contract RequiredNFA possibility

PICA-013-R-01 (Inactive Munitions Waste Pit); PICA 058 (600 Hill Groundwater Plume)

Complete Complete Complete Nov-19

Weston Contract

New Contract Required

This FS will include the PICA 058 Groundwater Plume

PICA-014-R-01, Inactive Munitions Waste Pit – Off-Post

CompleteNot Required

if NFAComplete

(Draft)Weston Contract New Contract Required

NFA possibility

600 Hill and Complete

Not Required if NFA

Complete(Draft)

New Contract RequiredNFA possibility

Ted Gabel

MMRP Sites

Ted Gabel

Ongoing Military Munitions Response Program Feasibility Studies

Remedial Investigation completed in 2013; RI Report approved in 2014

• Shell Burial Grounds FS: Combines IRP with MMRP Sites; Discussed last year at RAB: submitted in December of 2019

• On-Post MMRP Sites FS: Submitted in April 2018;

• Former Operational Area: 1685 acres

• Lake Picatinny and Lake Denmark Areas: 741 acres

• 1926 Explosion Site: 1500 acres

• Fuze Area: 3 acres

• Off-Post MMRP Sites:

• 1926 Off-Post FS: Contains 5 separate landowners discussed at last RAB; now WESTON will finish FS

• Lake Denmark – Off-Post & Inactive Munitions Waste Pit – Off-Post: Proposed Plan submitted No risk, nothing found. Army considers this an NFA and have discussed with EPA. An FS is not required only a Proposed Plan and ROD

Ted Gabel

Construction Support since LUCWP • Chugach/REMTEC:Install 3 Gates B175, , 100 area demolition , B118 Install two utility poles, Various sign post Installations, Tilling of the

wildflower area Safe Haven, Emergency cleanup B314, B902 Demolition deob 1 day , B175 Playground equipment installation , B525 Removal of slaband footings , B174 Installation of 2 wood poles, Mt. Hope gate underground trenching, , B3228 Dig trenches for video surveillance , Wetlanddelineation, Truck gate trenching, B314 Fence installation, B3159 Removal of stumps and grading, B3801 Installation of a gas service, B175Replacement of a defective pole, B351 Trenching for generator (mod 1) , B3100 Install concrete pad, Install (32) UXO signs, Install Gate, B3410Installation of new storm water piping installation of poles, B3334 and old burning installation of poles near substation 2 B314 Install fencing, METCground loop installation, AAL Archaeological work, Substation 1 utility pole, Utility pole installation , B200 Fueling facility boring, Trailer installAmerican Water near B50, B73 boring for soil samples, B507 for Installation of a Utility Pole and Ground Rods, B3321 Concrete pad installation, B472Installation of a gas line, Various small projects, B173 Trenching for drain piping, B200 Fueling Facility improvements, B183 Install handicap walkway,Installation of utility pole/ demo steam pits,B454B, Removal of slab footings and pole installation, SREC Substation #1 poles,B462 Installation of agenerator, B3128 Loading dock footings, B3208 Expand driveway install trench drain MOD1,B3114 Roadway clearing Substation 1 utilitytrenching,B904 Ground loop, trenching,B3355 Hydronic piping replacement, ,Main road curbing,,B175 Parking lot renovation, B3321 Drainage repairs,B407 Footing installation, B3024 Exterior repairs, B175 Drainage repairs, B462 Gas line installation BAAL Survey for proposed water treatment plantReilly Rd West Loop Relocation, Geotechnical borings, Installation of a service water line, Tree clearing water treatment plant, B462 Pole relocation,B3050 Tree clearing for parking lot, B3050 Geotechnical borings Replace deteriated fencing related to the fence at Shell Burial Area MRS AEDBRID:PICA010R01 B3100 Replace fencing B3050 Parking lot , B3228 Rear steps B816 Temporary shoring B3111 Electrical conduit repair, Utility pole anchorand curbing,Reilly Road ,)B3225 Fence installation, B3109 Paving, 3100 Fire hydrants, Bollard Installation B602C, B506 Fire hydrant replacement, B620Steam line repair MOD1, B3128 Loading Dock Stairs, B256 Pole Replacement, Utility Trenching, ,Utility Trenching, Bear Swamp Road Utility PoleReplacement,B3109 Fence Post Replacement, Bear Swamp Road Utility Pole Replacement, Reilly Road Utility Pole Replacement, 1300 Area WetlandDelineation.20' Trench at B462, Pole Set & Anchors, Rehabilitate Well 302D, Bott Rd Cell Tower, B1 Water Main Relocation,Replace three utility poles inthe 1200 area, Install one utility pole near B913,Replace Directional Signs,Light Pole Excavation B217, Z8-58 Pole Replacement near B807,PoleReplacement at Belt and Main - Pole Replacement in the 3300/3400 - Replace Pole at Chapel, B3221, Farley RoadTree Planting, B333 RepairUnderground Steam Lines Two pole anchors for poles, B3150 Boring Test Holes, - B3028 Install Sonotubes, B1381 Install Pole Anchor- B120 ShovelTests,Additional Directional Signs, -B151 Install Pole Anchor, B221 Utility, B221 Utility Trench,- B717 Install Pole and Anchors, Paladin NavigationCourse Repair, Water Plant Gas Line, Lake Denmark Shovel Pole Anchor Installation Near Truck Gate, Rehabilitate Well 302D,Dry Sprinkler SystemB526, Pole Anchor B302D, Pole Anchor Installation at Reilly Road, 2017 Fire Hydrant Replacement AAL, Pole Replacement at 1000 Area, B3150 UtilityTrench, B3150 Utility Trench, B217 Stump Grinding B472 Stump Grinding, B506 Bore Test Holes, 3100 Overhang, B3028 Concrete Pad , AL StumpGrinding,Haz Tree 2018 B3050 Pole Replacement, B3345 Pole Replacement, B221 Utility Trench Paladin Test Pits, B456 Pole Replacement, AAL EODSite Investigation (Escort and Construction Support) Water Lines, Geotech Investigation, Parking Lot Pole Replacement, Area ArchaeologicalSurvey,Soil Samples, Co-Gen Pole Placement, Concrete Footers, Paladin Nav Course Phase II, B472 Generator Pad, B603 Pole Replacement, B3159Wetland Delineation - B119 Pole Replacement,- B1095 Sidewalks, B518 Stack Foundations B528 Gas Line Installation,B1461 Utility Trench, V151 BridgeSoil Boring, B810 Pole Installation, B9 & B12 Replace Poles B1 Boring Test Holes, B810 Sitework, B816 Sitework, B-920 Soil Borings,Replace poles at Bott

& Main, B456, B1461 & B3410, B3150 Water Line Replacement, Paladin Phase 3, Pole near Hessian Cemetery ,B325- Footing Excavations, B427,

B526, B717, B3159, B1094 Pole Installation, Connex Lot , B723 Pole Anchor, B1 Boring TestHoles, B810 Sitework, B816 Sitework, B920 SoilBorings, Replace poles B816 Rehab Work, B472 Fencing and Foundation, B325 Water Line*** , B3159 Building excavation

Baltimore Corps: American Water Construction & currently Construction ofEOD Facility

Ted Gabel

Programmatic Updates• DSMOA 2 Year Workplan Joint Execution Plan (JEP) approved by

NJDEP and Army. JEP is locked . This is how NJDEP gets paid.

• Picatinny Restoration Page is still continuously updated but only approved documents.

• Next Five Year Review of all sites with RODs due 2021.

• 600 Hill ROD and 3-Site Group Explanation of Differences were both signed on September 13th by the Army and October 31 by the EPA and public noticed in October

• 1 new contract expected in FY 20 for replacement of EA, conduct the 600 Hill Remedial Action, conduct the Bear Swamp Brook ESD and Area D work and well maintenance.

• Final round of wetland enhancement completed for Mitigation Area 1 (Site 34 – Lower Burning Ground PICA-002)

Ted Gabel

Update on PFAS Investigations

RAB MeetingDecember 12, 2019

Ted Gabel

Per-and Polyfluoroalkyl Substances

• Man-made compounds which include PFOS and PFOA

• Very persistent and found world-wide in the environment, people, and wildlife

• Used since the 1940s in many products including consumer products

• Used since the 1970s by DoD in fire-fighting foam

• EPA lifetime health advisory level (LHAL) in drinking water is 70 ppt for PFOA and PFOS (One ppt is equivalent to one grain of sand in an Olympic-size swimming pool)

• NJDEP groundwater remediation standards for PFOA and PFOS not yet promulgated

PFAS Facts

Ted Gabel

PFOS/PFOA in Picatinny Drinking Water

• February/March 2018 – Samples from Picatinny drinking water wells have PFOS/PFOA above EPA LHAL.

• Alternate water temporarily provided to Picatinny until granulated activated carbon (GAC) system (temporary then permanent) installed on water system.

• Since temporary GAC installed quarterly sampling of drinking water indicates the following:o Untreated drinking water continues to have

concentrations above EPA LHAL.o Treated drinking water, provided to consumers, has

levels below any level of concern.

Ted Gabel

Temporary GAC System installed by American Water

• System comprised of two 20‘ high x 10’ wide vessels in series filled with a coconut shell based carbon media.

• Water in contact a minimum of 20 minutes per NJDEP regulations. GAC absorbs PFAS.

• Performance testing and sampling conducted quarterly.

• These units will be operated until permanent system installed.

Temporary Treatment System

Ted Gabel

Permanent Treatment System• Construction permit

submitted to NJDEP on December 28, 2018 and approved April 18, 2019.

• Pad for permanent carbon treatment facility completed.

• Tank delivered in November 2019.

• Tentative date GAC system online - May 1, 2020.

Ted Gabel

Pre-Site Investigation Sampling

Sample Event

Location Well ID Aquifer Media PFOS Conc (ng/L)

PFOA Conc (ng/L)

Pre-SI Pyrotechnic Area and Sanitary LF

20/24-MW8 Unconfined GW 7.4 70

Pre-SI Southern Boundary SB1-2 Unconfined GW 300 14

Pre-SI Southern Boundary SB3-2 Lower Semi-Confined

GW 87 6.7

Pre-SI Green Pond Brook; Southern Boundary of Installation

NA NA SW 130 13

• Private wells located downgradient of Picatinny southern boundary.• Due to on-site drinking water well results, pre-SI sampling conducted at

Picatinny Southern Boundary

Ted Gabel

Pre-SI Sampling

Ted Gabel

Off-Post Private Well Sampling

• 20 properties - confirmed no well

• 3 properties – well unconfirmed and unable to contact owners

• 1 property – well confirmed and unable to contact owner

• 7 properties – well confirmed and samples collectedo 1 well – within approximately 0.01 mile of southern

boundaryo 1 well – within approximately 0.6 miles of southern boundaryo 5 wells – within approximately 1 mile of southern boundary

Goal – Determine if Impacts to Off-Post Private Wells Within 1-Mile Downgradient

31 Potential Private Wells Within 1-Mile Downgradient of Southern Boundary

Ted Gabel

Off-Post Private Well Sampling

• 7 Wells Confirmed and Sampledo 1 well (within 0.6 miles of southern boundary)

- results > NJDEP interim levels (10 ppt); NJDEP to hook up property to public water

o 6 wells – results < NJDEP interim levels

• 1 Well Confirmed and Not Sampledo Unable to contact owner

o Verified supplied by public water

o Reportedly used to water lawn

• 3 Wells Unconfirmedo Located approximately 0.98 miles

downgradient of southern boundary

o Adjacent to other 5 wells sampled; sampled wells with results < NJDEP interim levels

Ted Gabel

Potential and Confirmed Wells Within 1 Mile of

Picatinny Southern Boundary

Ted Gabel

Site Investigation

• Quality Assurance Project Plan Addendum Finalized November 2019

• On-post sampling began November 2019

oSampling at 7 Areas of Potential Interest (AOPI)

oSampling at 3 non-AOPI areas

SI Goal – Determine Presence/Absence of PFAS

Ted Gabel

Proposed On-Post SI Sampling

AOPI / Location Proposed Sampling

Pyrotechnic Area and Sanitary LF (AOPI) None1

Former Bldg. 24 (AOPI) None1

Bldg. 169 – Firehouse 1 (AOPI) None1

Area 1777 – Lower Burning Grounds (AOPI) Groundwater, surface water, and soil

Bldg. 3316 – Firehouse 2 (AOPI) Groundwater and soil

Lawn N of bldg. 3409/3410 (AOPI) Groundwater, surface water, and soil

Area 1222 – Gorge (AOPI) Groundwater, surface water, and soil

Former WWTP Facility (AOPI) Groundwater, surface water, and soil

Post Farm Landfill (AOPI) Groundwater and soil

Bldg. 3801 – NJARNG Helipad Area (AOPI) Groundwater, surface water, and soil

Eastern Boundary Groundwater and surface water

Upgradient Northern Boundary Groundwater and surface water

Mid-Valley Upgradient Groundwater

1 – Samples are not proposed from these AOPIs because the pre-SI sampling indicated PFAS at or above HAL

Ted Gabel

Proposed On-Post SI Sampling

AOPI / Location

Number of Samples

GW –existing MW

GW –temporary well

Surface Water

Soil

Area 1777 – Lower Burning Grounds 3 1 2 2

Bldg. 3316 – Firehouse 2 2 1 0 2

Lawn N of bldg. 3409/3410 0 2 1 2

Area 1222 – Gorge 3 1 2 2

Former WWTP Facility 4 0 2 2

Post Farm Landfill 2 1 0 0

Bldg. 3801 – NJARNG Helipad Area 2 0 1 2

Eastern Boundary 4 0 2 0

Upgradient Northern Boundary 0 2 1 0

Mid-Valley Upgradient 1 0 0 0

Totals 21 8 11 12

Ted Gabel

AOPI Locations

Unclassified

Ted Gabel

Other Sample Locations

Unclassified

Eastern Boundary

Upgradient Northern Boundary

Mid-Valley

Ted Gabel

Current and Next Steps

• On-post groundwater, surface water, and soil sampling commenced November 2019; expected completion in December 2019

• Validated data expected by mid-February 2019• SI Report in 2020• RI to follow (date TBD)

Installation Management Command integrates and deliversbase support to enable readiness for a globally-responsive Army

We are the Army’s Home Serving the Rugged Professional

UNCLASSIFIED1 of 21

Picatinny Restoration Advisory Board Meeting

Remedial Action-Operation / Long-term Management

Project Modification Update12 December 2019

UNCLASSIFIED2 of 21

Picatinny Restoration Advisory Board MeetingPicatinny Restoration Advisory Board Meeting

• Perform Remedial Action-Operation at 14 sites and Long-term Management at 70 sites. Sites are consolidated into 7 Remedial Action Operation Groups/Sites and 12 Long-term Management Groups/Sites.

• Remedial Action-Operation Groups/Sites:o Group 1, Group 3, RI Concept Site 78, Area B, Area D, Area E, and Mid-

Valley

• Long-term Management Groups/Sites: o Lower Burning Ground, Group of 13, Post Farm Landfill, Pyro Range &

Landfill, Landfill & Dredge Pile, Defense Reutilization and Marketing Office, Waste Burial Ara, Waste Dumps & Labs, Green Pond and Bear Swamp Brooks, Area C, 25 Site Group, and 21 Site Group

Remedial Action-Operation / Long-term Management Contract

UNCLASSIFIED3 of 21


Status Update: Area B

• Selected remedy: Expedited Bioremediation of chlorinated volatile organic compounds

• 2017 molasses injection to address persistent vinyl chloride

•2019 Sampling: o Only vinyl chloride above site cleanup

level in groundwater of two periphery wells (MW-18 and IW-03B) and one well downgradient of injection line 3 (MW-06B)

o No contaminants of concern above site cleanup levels in surface water

UNCLASSIFIED4 of 21


Status Update: Area B

• Basic trend analysis for well 20/24-MW-06B does not provide a good answer as to time remaining to meet the VC SCL since the concentrations at the site were previously below SCLs (2012-2015)

• However, using a pore flushing model based on parameters presented in the 2008 RD and the maximum VC concentration detected in 2019, the estimated time to reach the SCL is approximately 4 years

0

50

100

150

200

250

300

350

400

Co

nce

ntr

atio

n (

µg/

L)

Groundwater VOC Concentration Chart for B-20/24-MW-6B

Vinyl chloride (VC)

UNCLASSIFIED5 of 21


LOWER BURNING GROUND

WETLAND MITIGATION

5

UNCLASSIFIED6 of 21


Wetland Mitigation

Lower Burning Ground (PICA-002)• LTM: Groundwater and surface

water monitoring, LUC inspections, wetland enhancement monitoring (qualitative and quantitative assessments)

• 2 mitigation sites within the vicinity of PICA-002 to offset impacts to wetlands and floodplain area

• Existing wetland areas enhanced through:

o Control of invasive plant specieso Planting of natural vegetationo Creation of micro-depressions to

create habitat diversity

UNCLASSIFIED7 of 21


Wetland Mitigation

• Monitoring completed for a period of 5 years

• Qualitative o Early summero Identified areas invasive species

establishmento Subsequent herbicide application

conducted

• Quantitativeo Late summer/early fallo Established permanent sample plot

locations (Oct. 2015)o Collected data regarding species

composition, percent cover, stressed vegetations, herbivory, wildlife etc.

UNCLASSIFIED8 of 21


Wetland Mitigation

Treated phragmites

Deer herbivory

Purple loosestrife

Dead tree planting

UNCLASSIFIED9 of 21


Wetland Mitigation• Herbicide applications over the last 5-years have positively affected the

establishment of the planted stock and regeneration of native species • Hydrology indicative of established wetland conditions:

o Drainage patterns, oxidized rhyzospheres, inundation, and saturated soils

• Increase in the woody stem plant densities within the forested and shrub wetland areas for both Wetland Mitigation Sites #1 and #2

o As woody plants continue to grow, they will likely further shade out the shade-intolerant invasive species

• The persistence of invasive species is attributable to neighboring wetland areas that are dominated by invasives that serve to recolonize the mitigation areas

UNCLASSIFIED10 of 21


AREA D PERMEABLE REACTIVE BARRIER AND UPGRADIENT CVOC EVALUATION

10



11

• Purpose: To evaluate the implementation and performance of the remedy in order to determine if the remedy is or will be protective of human health and the environment.

• Recommendations for optimization from the 2016 Fifth Five-Year Review for RAO-LTM sites incorporated into new scope of work for EA o Evaluation of Area D (PICA-076) Permeable Reactive Barrier (PRB) performance

o Evaluation of chlorinated volatile organic compound (CVOC) concentrations upgradient of the Area D PRB

• Area D Study Goals

o Answer the question: Will the PRB work in the near future?

o Should the Army do something to reduce the timeframe of MNA cleanup?

2016 5-Year Review Recommendations



Area D PRB & Upgradient CVOC Evaluation• Contamination Source: Building 24 - plating

facility that operated from 1960 to 1981

• Selected remedy: Permeable Reactive Barrier to intercept groundwater flow and monitored natural attenuation

• Remedial Strategy Data Gaps:

o Concentrations in deep unconfined wells downgradient of the former source not delineated

o Additional investigation of potential residual source needed to address elevated CVOCs and reduce overall mass flux to the PRB

o Increase in TCE concentrations southwest of the PRB



Area D PRB & Upgradient CVOC Evaluation• PRB Evaluation

o Performed in situ screening using a hydraulic profiling tool (HPT)

o Collected in situ groundwater samples near the PRBo Installed one CMT well (4 ports)

adjacent/southwest to D-PRB-09o Collected soil cores from within the PRB to visually

inspect for biofouling/silting; collect VOC sampleso Conducted comprehensive sampling/gauging evento Collected surface water samples from Green Pond

Brook

• Upgradient CVOC Concentration Evaluationo Installed two transects of 5 boreholes eacho Used HPT to provide horizontal and vertical

delineation of TCE in areas upgradient/downgradient of D-92-3

o Installed 3 CMT wells (7 ports at different depths in each)

o Collected biological reductive dechlorinationparameters in 6 wells

o Collected microbial samples from 3 wells to assess the available microbial community structure



Potential Alternative Proposed in Focused FS• The results of the additional investigation were

evaluated in light of the RI/FS, associated risk assessments, and ROD.

• Based on the current site conditions (i.e., groundwater characteristics), current contaminant levels, and site remedial history, the FFS evaluated:

• Current remedy (continue with the current Limited Action remedy of MNA with the PRB - no current unacceptable exposure risks exist)

• An active remediation alternative (in situ bioremediation to stimulate the aquifer conditions), a specific technology that will best address the remaining contamination and encourage MNA.



Potential Alternative Proposed in Focused FS

• In Situ Bioremediation Injectiono Process in which indigenous micro-organisms such

as fungi, bacteria, and other microbes enhance degradation or metabolism of organic contaminants found in the saturated zone, converting them to innocuous end products.

• Area 1 = horizontal well injections o Estimated to be 75,000 sq.ft.

o Treatment interval of 40-‍60 ft bgs.

• Area 2 = vertical well injectionso Estimated at 150,000 sq.ft.

o Treatment intervals of 30-45 ft bgs and 55-70 ft bgs.

• Area 3 = vertical well injections o Estimated at 6,000 SF

o Treatment interval of 20-40 ft bgs.



Potential Alternative Proposed in Focused FS

• Figure w horizontal



• Figure with vertical

1

Overview of New Contract – Weston Solutions

• Contract: United States Army Corps of Engineers - Baltimore District, Multiple Award Military Munitions Services II

• Contract No.: W912DR-15-D-0022

• Delivery Order No.: W912DR19F0645

• Name: Remedial Investigations, Feasibility Studies, Proposed Plans and Record of Decisions and Long Term Monitoring at MMRP and IRP Sites, Picatinny Arsenal

• Award Date: 30 September 2019

• Period of Performance: 5 years, 30 September 2024

• Contractor: Weston Solutions, Inc.

UNCLASSIFIED

2


• 21 contract line item numbers (CLINs) awarded to date

• 13 optional CLINs available as required

• Includes several administrative tasks:✓CLIN 0001: Project Management Plan

✓CLIN 0020: Biennial Certification of the Classification Exception Area

✓CLIN 0021: Restoration Advisory Board Support

✓CLIN 0031: Administrative Record Support

• Scope of contract per site is provided on the next slide

UNCLASSIFIED

3


UNCLASSIFIED

Site RI FS PP ROD RD RA RAR LTM/O CommentsInstallation Restoration Program Sites

45 Site Group A Complete CompleteRegulatory

ReviewProposed No Further Action (NFA) with Monitoring of Land Use

45 Site Group B Complete CompleteRegulatory

ReviewProposed NFA with Monitoring of Land Use

45 Site Group C Complete CompleteRegulatory


45 Site Group D Complete CompleteRegulatory


Non-Lakes Group Complete CompleteInternal

DraftProposed NFA with Monitoring of Land Use

PICA-207 Complete CompleteInternal

DraftProposed NFA with Monitoring of Land Use except Site 173 where action is required

PICA-057Picatinny Lake (IRP)

Complete CompleteRegulatory

ReviewProposed sediment capping at hotspots, LUCs

PICA-111 Group Complete CompleteRegulatory


Eastern Edge of Green Pond Brook

RegulatoryReview

AsRequired

3 Site Group Complete Complete Complete Complete Complete Complete Complete Ongoing NFA with Monitoring of Land Use

EOD Pond and Lake Denmark

Complete Complete Complete Complete Complete CompleteNot

ApplicableOngoing

Task CompleteECC's 2020-Ending

ContractWeston's 2019

ContractFuture Contracting

4


UNCLASSIFIED

Site RI FS PP ROD RD RA RAR LTM/O CommentsMunitions Response Program Sites

1926 Explosion Radius Off-Post MRS

CompleteInternal

Draft

1926 Explosion Radius MRS

CompleteRegulatory

ReviewShell Burial Grounds

Complete CompleteInternal

DraftProposed Land Use Controls (LUCs)

Fuze Area CompleteRegulatory

ReviewFormer Operational Areas

CompleteRegulatory

Review

Lakes (MMRP) CompleteRegulatory

ReviewMortar and Skeet Area


ReviewProposed removal action with LUCs

Lake Denmark - Off Post andInactive Munitions Waste Pit - Off Post


ReviewProposed NFA

ORAP - 3 SitesPendingAward

Task CompleteECC's 2020-Ending

ContractWeston's 2019

ContractFuture Contracting