Site_Figures.pdf

Worcester County

Middlesex County

South Post

Former Main Post

Former North Post

Downtown Ayer

Shirley

Lancaster

Harvard

UV117

UV110

UV70 UV2

UV2A

UV111

Legend

Highway Major Road County Line Former Fort Devens Boundary

Preliminary Assessment

Former Fort Devens Army Installation Devens, Massachusetts

KOMAN Government Solutions, LLC 160 East Main Street, Suite 2F, Westborough, MA 01581

Figure

Date:

09/16/2016

0 3,5001,750

Feet µ Figure 1

Site Location Former Fort Devens

Army Installation

Former Fort Devens

Army Installation

MA

CT

NHVT

NY

RI

ME

References: HGL. LTMMP 2012.

Aerial Sources: 2011, Esri, DigitalGlobe, GeoEye, i-cubed, USDA FSA, USGS, AEX, Getmapping, Aerogrid, IGN, IGP, swisstopo, and the GIS User Community

Location Map

!A

!A !A !A

!A

!A

!A

!A

!A

!A !A

!A

!A

AOC 41

AOC 43A

Grant Housing Area

AOC 57

AOC 43G

Devens Consolidation Landfill (DCL)

SA 11

SA 13

AOC 40

SA 12

AOC 9

AOC 32

AOC 69W

Legend !A Area of Contamination (AOC)

DEP Approved Wellhead Protection Areas (Zone II) Highway Major Road County Line Former Fort Devens Boundary

2017 Main Post Annual Report Former Fort Devens Army Installation Former Fort Devens Army Installation

Devens, Massachusetts

Figure 1-1

Date:

02/06/2018

0 3,5001,750

Feet µ Figure 1-1

Site Location Former Fort Devens

Army Installation

Former Fort Devens

Army Installation

MA

CT

NHVT

NY

RI

ME

Aerial Sources: Esri, DigitalGlobe, GeoEye, i-cubed, USDA FSA, USGS, AEX, Getmapping, Aerogrid, IGN, IGP, swisstopo, and the GIS User Community

Location Map

File: AR2017_MP_FFD.mxd

KOMAN Government Solutions, LLC 293 Boston Post Road West, Suite 100, Marlborough, MA 01752

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CAP-2B

CAP-3

CAP-4

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Q5-1 Q5-2

EPA-PZ-2012-1A

EPA-PZ-2012-1B

EPA-PZ-2012-2A

EPA-PZ-2012-2B

EPA-PZ-2012-3A

EPA-PZ-2012-3B

EPA-PZ-2012-4A

EPA-PZ-2012-4B

EPA-PZ-2012-5A

EPA-PZ-2012-5B

EPA-PZ-2012-6A

EPA-PZ-2012-6B

EPA-PZ-2012-7A

EPA-PZ-2012-7B

N1-P1 N1-P2 N1-P3

N2-P1 N2-P2

N3-P1 N3-P2

N5-P1 N5-P2

N6-P1

N7-P1 N7-P2

PZ-12-01

PZ-12-02

PZ-12-03

PZ-12-04

PZ-12-05

PZ-12-06

PZ-12-07

PZ-12-08

PZ-12-09

PZ-12-10

SHL-1

SHL-3

SHL-4

SHL-5/WT-5

SHL-7

SHL-8D

SHL-8S

SHL-9

SHL-10

SHL-11

SHL-12

SHL-13

SHL-15

SHL-17

SHL-18

SHL-19

SHL-20

SHL-21

SHL-22

SHL-23

SHL-24

SHL-25

SHM-05-39A

SHM-05-39B

SHM-05-40X

SHM-05-41A

SHM-05-41B

SHM-05-41C

SHM-05-42A

SHM-05-42B

SHM-07-03

SHM-07-05X

SHM-10-01

SHM-10-02

SHM-10-03

SHM-10-04

SHM-10-05A

SHM-10-06

SHM-10-06A

SHM-10-07

SHM-10-08

SHM-10-10

SHM-10-11

SHM-10-12

SHM-10-13

SHM-10-14

SHM-10-15

SHM-10-16

SHM-11-02

SHM-11-06

SHM-11-07

SHM-13-01

SHM-13-02

SHM-13-03

SHM-13-04

SHM-13-05

SHM-13-06

SHM-13-07

SHM-13-08

SHM-13-14D

SHM-13-14S

SHM-13-15

SHM-93-01A

SHM-93-10C

SHM-93-10D

SHM-93-10E

SHM-93-18B

SHM-93-22B

SHM-93-22C

SHM-93-24A

SHM-95-27X

SHM-96-5B

SHM-96-5C

SHM-99-31A

SHM-99-31B

SHM-99-31C

SHM-99-32X

SHP-01-36X

SHP-01-37X

SHP-01-38A

SHP-01-38B

SHP-01-38Z

SHP-05-43

SHP-05-44

SHP-05-45A

SHP-05-45B

SHP-05-46B

SHP-05-46A

SHP-05-47A SHP-05-47B

SHP-05-48A

SHP-05-48B

SHP-05-49A

SHP-05-49B

SHP-99-01B

SHP-99-01C

SHP-99-29X

SHP-99-33A

SHP-99-33B

SHP-99-34B

SHP-99-35X

SHP-2016-1A

SHP-2016-1B

SHP-2016-2A

SHP-2016-2B

SHP-2016-3A

SHP-2016-3B

SHP-2016-4A

SHP-2016-4B

SHP-2016-5A

SHP-2016-5B

SHP-2016-06A

SHP-2016-06B

SHP-2016-06C

SHP-2016-07A

SHP-2016-07B

RSK 1, 2, 3, 4, 5, 6, 7

RSK 8, 9, 10, 11, 12, 47

RSK 13, 14, 15

RSK 16, 17, 18, 19, 20, 21

RSK 23

RSK 24

RSK 25

RSK 27

RSK 28

RSK 32

RSK 34

RSK 35

RSK 36, 37, 38, 39, 40, 41, 42, 43

RSK 50

32M-01-13XBR

32M-01-14XBR

32M-01-14XOB

32M-01-15XBR

32M-01-16XBR

32M-01-17XBR

32M-01-18XBR

32M-92-01X

32M-92-03X

32Z-01-08XBR

32Z-01-10XBR

32Z-01-11XBR

32Z-01-12XBR

32Z-01-06XBR

32Z-01-07XOB

32Z-99-02X

43M-01-16XOB

43M-01-16XBR

43M-01-17XOB

43M-01-17XBR

43M-01-20XOB

43M-01-20XBR

MW-1

MW 4-1

MW 7

MW 9

MW 11A

MW 14

MW 16

MW 22

EW-01/01S

EW-04/04S

PSP-01

SHMSG-13-01G

SHMSG-13-02G

SHMSG-13-03G

SHMSG-14-01G

SHP-2017-02

SHP-2017-01

WEST MAIN STREET

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ANTIETAM STREET

SHIRLEY STREET

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NONACOICUS BROOK

PLOW

SHOPPOND

RED COVE

FORMER

RAILROAD

ROUNDHOUSE

SHEPLEY'S

HILL

RECYCLING

FACILITY

Re fe re nce s: LTMMP Upda te (Sove re ig n, 2015) Ae ria l Sou rce : Esri, Dig ita lGlob e , Ge oEye , Ea rth sta r Ge og ra ph ics, CNES/Airb u s DS, USDA, USGS, Ae roGRID, IGN, a nd th e GIS Use r Com m u nity

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Ba rrie r Wa ll La ndfill Acce ss Roa d Sh e ple y's Hill La ndfill Bou nda ry Form e r Fort De ve ns Bou nda ry

2017 Annu a l Re port Sh e ple y’s Hill La ndfill

Form e r Fort De ve ns Arm y Insta lla tion De ve ns, Ma ssa ch u se tts

Fig u re 1-2

Da te :

07/19/2018

0 400200

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Re fe re nce s: LTMMP Upda te (Sove re ig n, 2015) Ae ria l Sou rce s: Esri, Dig ita lGlob e , Ge oEye , i-cu b e d, USDA FSA, USGS, AEX, Ge tm apping , Ae rog rid, IGN, IGP , swisstopo, a nd th e GIS Use r Com m u nity

Northern Impact Area and Shepley's Hill Landfill

Site Plan

File : AR2017_ SHL_ SITEP LAN.m xd

293 Boston P ost Roa d We st, Su ite 100, Ma rlb orou g h , MA 01752

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IWS System Enclosure

Area 5

Area 4 Area 3

Area 2

Area 1 (Source Area)

Building

Building 3818

Building 3822

Building 3820

T 3807

T 3823

Fitchburg Road/Route 2A

Former North Post

Merrimack Warehouse, Inc.

Rubb Air Door

G6M-13-03X

MW-3

G6M-02-01X

G6M-03-07X

XSA-12-98X XSA-12-97X

XSA-12-96X

XSA-12-95X

G6M-04-14X

G6M-02-06X

G6M-04-07X

G6M-04-06X

G6M-02-07X

G6M-03-08X

G6M-04-05X G6M-03-09X

G6M-03-10X G6M-02-12X

G6M-02-11X

G6M-97-05B

MW-7

G6M-02-13X G6M-02-04X

G6M-04-04X

G6M-04-02X

G6M-04-03X

G6M-04-01X

IW-6

IW-1

IW-2

IW-3

IW-4

IW-5

IW-33

IW-32

IW-31

IW-30IW-29

IW-34

G6M-05-02X/IW-35

IW-36

G6M-06-01X

G6M-02-05X

G6M-13-01X

G6M-13-04X

IW-39

G6M-13-02X

G6M-02-03X G6M-97-28X

IW-24

IW-25

IW-26

IW-27 IW-28

G6M-07-01X

IW-23

IW-22IW-21

IW-20IW-37

See Figure 1-3 for Detail

G6M-18-01

G6M-18-02

Legend

#0

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Newly Installed Monitoring Well - 01/2019

ERD LTM Well - Sampled Semi-Annually ERD LTM Well - Sampled Annually ERD LTM Well - Sampled Biennially Monitoring Well Converted to Injection Well MicroWell - Sampled Annually Injection Well Injection Well Installed 01/2014 Groundwater Flow Direction Former Fort Devens Boundary

Figure 1-2 Site Layout

AOC 50

2018 Annual Report

AOC 50

Former Fort Devens Army Installation and Sudbury Annex Devens, Massachusetts

293 Boston Post Road West, Suite 100, Marlborough, MA 01752

Figure 1-2

Date:

02/04/2019

0 300150

Feetµ

Notes:

ERD = Enhanced reductive dechlorination IWS = In-well stripping LTM = Long-term monitoring

Aerial Sources: Esri, DigitalGlobe, GeoEye, i-cubed, USDA FSA, USGS, AEX, Getmapping, Aerogrid, IGN, IGP, swisstopo, and the GIS User Community

File: AR2018_AOC50_F1-2_Layout.mxd

Figure 1-3 Site Layout, Source Area

AOC 50

2018 Annual Report

AOC 50

Former Fort Devens Army Installation and Sudbury Annex Devens, Massachusetts

293 Boston Post Road West, Suite 100, Marlborough, MA 01752

Figure 1-3

Date:

02/21/2019

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FORMER PCE DRUM

STORAGE AREA

Gazebo

Former Parachute

Simulation Building

FLOOR DRAIN

FORMER DRY WELL

Route 2A

T3803 Former Parachute Shop

T3840Former ParachuteShakeout Tower

GP-13-23

GP-13-21

GP-13-22

GP-13-20

GP-13-19

GP-13-18

GP-13-17

GP-13-16

GP-13-08

GP-13-09

GP-13-07

GP-13-06

GP-13-04

GP-13-05

GP-13-03

G6M-94-18X/IW-38

G6M-13-06X

G6M-04-09X

G6M-04-10A

G6M-02-08X

G6M-96-22B

G6M-04-22X

G6M-04-31X

G6M-04-11X

G6M-04-15X

G6M-04-13X G6M-07-02X

IW-11

IW-8

IW-7

IW-17D

IW-17S

IW-18DIW-19D

IW-19S

IW-18S

IW-12

IW-16D

IW-16S

IW-15S

IW-15D

IW-13SIW-13D

IW-14S

IW-14S

G6M-03-01X

G6M-03-02X

G6M-04-10X

G6M-95-19X

G6M-96-22A

G6M-13-05X

G6M-93-13X

G6M-95-20XFormer Cesspool Excavation Extents

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XY Vertical Groundwater Profiling Location !P Former Dry Well !@ Floor Drain

Floor Drain Piping Janitor Sink Building Footprint Former Feature Former Fort Devens Boundary µ KOMAN Government Solutions, LLC

File: AR2018_AOC50_F1-3_SourceArea.mxd

Aerial:

USGS, MassGIS

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IW -30

IW -31

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G6M -06-01X

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G6M -04-04X

G6M -02-04X

G6M -02-13X

G6M -97-05B

G6M -02-11X G6M -02-12X

G6M -03-10X

G6M -03-09X G6M -04-05X

G6M -03-08X

G6M -02-07X

G6M -04-06X G6M -04-07X

G6M -02-06X

G6M -04-14X

XSA-00-90X

XSA-97-59X

XSA-00-89X

XSA-00-88X

XSA-97-58A

XSA-97-58X

XSA-12-97X

XSA-12-98X

G6M -04-08X

G6M -03-07X

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IW -4

IW -3

IW -1

IW -6

M W -7 M W -3

IW -25

G6M -96-26B G6M -07-01X

G6M -02-02X

G6M -97-08B

G6M -02-05X

G6M -97-29X

G6M -04-01X

XSA-00-91X

XSA-98-69X

XSA-12-95X

XSA-12-96X

G6M -02-01X

G6M -05-02X/IW -35

IW S-1

G6M -97-09B

Nashua River

IW S System En c losure

Area 5

Area 4 Area 3

Area 2

Area 1 (Source Area)

Buildin g

Buildin g 3818

Buildin g 3822

Buildin g 3820

T 3807

T 3823

Fitc hb urg Roa d/Route 2A

Form er North Post

M errim a c k W a rehouse, In c.

Rub b Air Door

26B

2UH

2UH

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170B

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250B

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Historic V ertic a l Groun dwa ter Profilin g Loc a tion

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Tetra c hloroethen e Con tour (μg/L)

1.7 Tetra c hloroethen e Con c en tra tion (μg/L)

ERD In jec tion W ell Tra n sec t Form er Fort Deven s Boun da ry

Figure 4-2 Tetrachloroethene Concentrations in

Groundwater, 2004 AOC 50

Form er Fort Deven s Arm y In sta lla tion a n d Sudb ury An n ex Deven s, M a ssa c husetts

293 Boston Post Roa d W est, Suite 100, M a rlb orough, M A 01752

Figure 4-2Date:

02/04/2019 0 300150

Feetµ

Notes:

1. Tetra c hloroethen e c on tours from Fin a l Rem edia l Ac tion W ork Pla n , AOC 50, Deven s, M assa c husetts (Arc a dis G&M , In c., 2005)

2. Fea ture loc ation s provided b y HGL

3. μg/L = M ic rogra m s per liter

4. ERD = En ha n c ed Reduc tive Dec hlorin a tion

5. GW = Groun dwater

6. J = Estim a te

7. LTM = Lon g-Term M on itorin g

8. U = Non -detec t

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IW -8

IW -12

IW -11

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IW -14S

IW -13D

IW -13SIW -15D

IW -15S

IW -18S

IW -19S

IW -19D

IW -18D

G6M -96-24B

G6M -96-25B

G6M -13-06X

G6M -13-05X

G6M -96-22A

G6M -95-19X

G6M -04-10X

G6M -03-02X

G6M -92-10X

XSA-96-17X

50B-92-09X

G6M -07-02X G6M -04-13X

G6M -04-15X

G6M -96-25A

G6M -03-05B

G6M -94-15A

G6M -04-11X

G6M -04-31X G6M -04-22X

G6M -96-22B

G6M -04-09X

G6M -02-31BR

IW -16S

IW -16D

IW -17S

IW -17D

G6M -97-27X

G6M -03-01X

G6M -03-04X

XSA-96-19X

G6M -96-13B

G6M -02-08X

G6M -04-12X

G6M -04-10A

G6M -94-18X/IW -38

G6M -95-20X

Floor Dra in

Dry W ell

G6M -93-13X

Form er North Post

Fire Pon d

Area 1 (Source Area)

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T 3803

T 3840

T 3840

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1,000

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10,000

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Aeria l Sourc es: Esri, Digita lGlob e, GeoEye, i-cub ed, USDA FSA, USGS, AEX, Getm appin g, Aerogrid, IGN, IGP, swisstopo, a n d the GIS User Com m un ity

Area 1 In set

See Area 1 In set

2018 An n ua l Report

AOC 50

File: AR2018_ AOC50_ F4-2_ PCE_ 2004.m xd

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MW -6

MW -1

MW -2MW -4

MW -5

IW -5

IW -2

IW -37

IW -20 IW -21

IW -22

IW -23

IW -28

IW -27

IW -26

IW -24

IW -39

IW -36

IW -34

IW -29

IW -30

IW -31

IW -32

IW -33

IW S-2

G6M-96-26A

G6M-92-11X

G6M-13-03X

G6M-02-09X

G6M-97-28X G6M-02-03X

G6M-13-02X

G6M-13-04X

G6M-13-01X

X SA-97-48X

G6M-06-01X

G6M-98-32X

G6M-02-10X

G6M-01-01X G6M-03-11X

G6M-04-03X

G6M-04-02X G6M-04-04X

G6M-02-04X

G6M-02-13X G6M-97-05B

G6M-02-11X G6M-02-12X

G6M-03-10X

G6M-03-09X G6M-04-05X

G6M-03-08X

G6M-02-07X

G6M-04-06X G6M-04-07X

G6M-02-06X

G6M-04-14X

X SA-00-90X

X SA-97-59X

X SA-00-89X

X SA-00-88X

X SA-97-58A

X SA-97-58X

X SA-12-97X

X SA-12-98X

G6M-04-08X

G6M-03-07X

Staff Gauge

IW -4

IW -3

IW -1

IW -6

MW -7

MW -3

IW -25

G6M-96-26B G6M-07-01X

G6M-02-02X G6M-97-08B

G6M-02-05X

G6M-97-29X

G6M-04-01X

X SA-00-91X

X SA-98-69X

X SA-12-95X

X SA-12-96X

G6M-02-01X

G6M-05-02X /IW -35

IW S-1

G6M-97-09B

Area 5

Area 4

Area 3

Area 2

Area 1 (Source Area)

GP-13-10

GP-13-02

GP-13-11

GP-13-13

GP-13-12

GP-13-25

GP-13-15

GP-13-14

GP-13-01 GP-13-24

B

B'

A

A'

C'

C

20 5

G6M-18-01

G6M-18-02

Le ge nd #B Ge oprob e Inje ction Location - August 2018 !́ N e wly Installe d Monitoring W e ll - 01/2019 !> ERD LTM W e ll - Sam ple d Se m i-Annually !> ERD LTM W e ll - Sam ple d Annually #0 ERD LTM W e ll - Sam ple d Bie nnially !< Ab and one d W e ll "/ Historic Soil Boring GF Historic V e rtical Ground wate r Profiling Location $+ In-W e ll Stripping Syste m W e ll !( Inje ction W e ll !A Ab and one d Inje ction W e ll !@ Inje ction W e ll Installe d 01/2014 &< LTM W e ll - Gauge Only ")E Mic roW e ll ")E Mic roW e ll - Gauge Only ")E Mic roW e ll - Sam ple d Annually &< Monitoring W e ll !( Monitoring W e ll Conve rte d to Inje ction W e ll #0 Staff Gauge !. MiHPT Inve stigation Location

XY V e rtical Ground wate r Profiling Location !P Dry W e ll !@ Floor Drain

Octob e r 2018 Inte rpre tive Te trac hloroe the ne (PCE) Contour (μg/L) Cross-Se ction A-A' Cross-Se ction B-B' Cross-Se ction C-C' Form e r Fort De ve ns Bound ary

Figure 4-6 Cross-Section Plan View

AOC 50

2018 Annual Re port

AOC 50

Form e r Fort De ve ns Arm y Installation and Sud b ury Anne x De ve ns, Massachuse tts

293 Boston Post Road W e st, Suite 100, Marlb orough, MA 01752

Figure 4-6

Date :

02/18/2019

0 300150

Fe e tµ Ae rial Sourc e s: Esri, DigitalGlob e , Ge oEye , i-cub e d , USDA FSA, USGS, AEX , Ge tm apping, Ae rogrid , IGN , IGP, swisstopo, and the GIS Use r Com m unity

Se e Figure 4-7

N ote s:

1.Fe ature locations provid e d b y HGL

2. μg/L = Mic rogram s pe r lite r

3. ERD = Enhanc e d Re d uctive De c hlorination

4. GW = Ground wate r

5. LTM = Long-Te rm Monitoring KOMAN Government Solutions, LLC

File : AR2018_AOC50_F4-6_X Se ctLoc.m xd

Barn um

Road

Cold Spring Brook

Building 3713 112 Barnum Road

AOC 57

Area 3

AOC 57

Area 2

AOC 57

Area 1 236

236226

236 226

Legend Former Fort Devens Boundary Area of Contamination (AOC) Stream Topographic Contour (Ft AMSL)

Non Potential Drinking Water Source Area High Yield Medium Yield

Figure 2-1 Site Layout

Area of Contamination 57 Area 1, 2 & 3

2017 Main Post Annual Report AOC 57 - Area 1, 2 & 3

Former Fort Devens Army Installation Devens, Massachusetts

Figure 2-1

Date:

02/06/2018

0 250125

Feetµ

Note:

AOC 57 lies within the MassDEP Zone II Wellhead Protection Area.

Aerial Sources: Esri, DigitalGlobe, GeoEye, i-cubed, USDA FSA, USGS, AEX, Getmapping, Aerogrid, IGN, IGP, swisstopo, and the GIS User Community

KOMAN Government Solutions, LLC

File: AR2017_AOC57.mxd

293 Boston Post Road West, Suite 100, Marlborough, MA 01752

#0

#0 #0 !<!<

"S

SG01

SG02

57M-95-06X

57M-03-01X

57M-03-06X

57M-03-05X 57M-03-02X

57M-03-04X

57M-03-03X 57WP-06-02

57WP-05-01

57M-95-07X

57M-95-05X

SG03

57-AREA2-SW2

57-AREA2-SW3

Cold S prin g Broo k

112 Barnum Road

AOC 57

Area 2

Former Fort Devens

Main Post

Legend &< LTM Well - Gauge Only #0 Staff Gauge !< Surface Water Sample Location

57M-03-06X Well/Piezometer/Sample Location Identification Final Excavation Limit (2003)

! ! ! Conti Excavation Limit (2002) Former Fort Devens Boundary Flagged Wetland Limits Approximate Historical Extent of Groundwater Contamination in Exceedance of Cleanup Goals (based on Fall 2003 to Spring 2008 analytical data) (2008 Annual Report, HGL, 2009) Containment Dam Area of Contamination (AOC) Stream

Figure 2-2 Site Layout

Area of Contamination 57 - Area 2

2017 Main Post Annual Report AOC 57 - Area 2

Figure 2-2

Date:

02/06/2018

0 6030

Feetµ

Note:

AOC 57 lies within the MassDEP Zone II Wellhead Protection Area.

Aerial Sources: 2013, USGS, MassGIS

KOMAN Government Solutions, LLC

File: AR2017_AOC57-2.mxd

293 Boston Post Road West, Suite 100, Marlborough, MA 01752

Former Fort Devens Army Installation Devens, Massachusetts

#0

#0 #0

"S

57M-95-03X

57M-96-10X

57M-96-12X

57M-96-13X

57WP-06-03 57M-96-11X

57P-98-04X 57P-98-03X

57-AREA3-SW1

Co ld

Sp rin g B roo k

112 Barnum Road

57M-96-09X

AOC 57 Area 3

Legend &< LTM Sample Well &< LTM Well - Gauge Only !. Well Point - Gauge Only #* LTM Piezometer !< Surface Water Sample Location !> Monitoring Well - Abandoned (2012) "S Monitoring Well - Destroyed

57M-95-03X Well/Piezometer/Sample Location Identification Approximate Historical Extent of Groundwater Contamination in Exceedance of Cleanup Goals (based on Fall 2003 to Spring 2008 analytical data) (2008 Annual Report, HGL, 2009) Area of Contamination (AOC) Alternate III-2a Estimated Soil Excavation Area Stream Topographic Contour (Ft AMSL)

Figure 2-3 Site Layout

Area of Contamination 57 - Area 3

2017 Main Post Annual Report AOC 57 - Area 3

Figure 2-3

Date:

02/06/2018

0 6030

Feetµ

Notes:

AOC 57 lies within the MassDEP Zone II Wellhead Protection Area.

Well 57M-96-09X buried by construction.

LTM = Long-term monitoring Aerial Sources: 2013, USGS, MassGIS

KOMAN Government Solutions, LLC

File: AR2017_AOC57-3.mxd

293 Boston Post Road West, Suite 100, Marlborough, MA 01752

69W-94-14

69W-94-13 69W-94-12

ZWP-95-01X

ZWP-95-02X

69WP-08-01

ZWM-95-18X

ZWM-01-26X

ZWM-99-23X

ZWM-01-25X

ZWM-95-15X

ZWM-99-24X

ZWM-99-22X

ZWM-95-16X

ZWM-95-17X

69WP-13-01

Antietam Street

Jackson Road

Willow Brook piezometer located 1/4 mile to the north along the west bank of Willow Brook

Building 215

Willow Broo k

6 246

Legend &< LTM Sample Well !. LTM Sample Well Point &< LTM Well - Gauge Only #* LTM Piezometer

ZWM-01-26X Well/Piezometer/Surface Water Elevation Location Parcel Boundary Surface Water Course Excavated Soils Management Area Topographic Contour (Ft AMSL)

Figure 3-1 Site Layout

Area of Contamination 69W

2017 Main Post Annual Report

AOC 69W

293 Boston Post Road West, Suite 100, Marlborough, MA 01752

Figure 3-1

Date:

02/06/2018

0 12060

Feetµ

Notes:

LTM = Long-term monitoring Aerial Sources: 2013, USGS, MassGIS

File: AR2017_AOC69W.mxd

KOMAN Government Solutions, LLC

Feinburg Road

Former Covered Gasoline Pump Islands

Pine Road

Former Waste Oil AST (Removed in 1996)

Former Waste Oil UST (Removed in 1992)

Area 2

Area 3

Former Gasoline USTs (Removed in 1990)

Former Gasoline USTs (Removed in 1996)

Former Sand and Gas Trap (Removed in 1996)

AAFES-5

AAFES-2

AAFES-7

AAFES-6R

61H-94-04

XGM-94-09X

XGM-97-12X

XGM-93-02X

XGM-94-07X

XGM-94-06XXGM-94-08X

XGM-94-10X

XGM-93-01X

XGM-94-04X

Queenstown Street

Legend &< LTM Sample Well &< LTM Well - Gauge Only &< Monitoring Well

XGP-94-04X Well/Piezometer Identification Approximate Historical Extent of Groundwater Contamination in Exceedance of Cleanup Goals (based on 1999 to 2008 analytical data) (2008 Annual Report, HGL, 2009) Area 1 Former Gasoline UST(s) Former Waste Oil UST Former Waste Oil AST Former UST Area Topographic Contour (Ft AMSL)

Figure 4-1 Site Layout

Area of Contamination 43G

2017 Main Post Annual Report

AOC 43G

Figure 4-1

Date:

02/06/2018

0 8040

Feet µ

Notes:

AST = Above ground storage tank UST = Underground storage Tank LTM = Long-term monitoring Aerial Sources: 2013, USGS, MassGIS

File: AR2017_AOC43G.mxd

KOMAN Government Solutions, LLC 293 Boston Post Road West, Suite 100, Marlborough, MA 01752

!A

!A

!A

!A

!A !A

!A

!A

!A

!A !A

"S

V-9

V-8

V-7

V-6V-4

V-5

V-2

V-3

V-1

V-11V-10

LFM-03-07

LFM-99-03B

LFM-99-05B

LFM-99-01B

LFM-99-05A

LFM-99-02B

LFM-99-06A-RP

LFM-99-06A

Queenstown Street

Legend &< LTM Sample Well &< LTM Well - Gauge Only !A Gas Vent "S Monitoring Well - Destroyed

LFM-03-07 Well/Vent Identification Topographic Contour (ft AMSL)

Figure 6-1 Site Layout

Devens Consolidation Landfill

2017 Main Post Annual Report Devens Consolidation Landfill

Figure 6-1

Date:

02/06/2018

0 15075

Feetµ

Notes:

LFM-99-06A was replaced by LFM-99-06A-RP in September 2015.

Gas vent locations were approximated based upon the locations displayed in Figure 2 of USACE New England District's Devens Consolidation Landfill 2004 Annual Report.

ft AMSL = feet above mean sea level LTM = long term monitoring Aerial Sources: Esri, DigitalGlobe, GeoEye, i-cubed, USDA FSA, USGS, AEX, Getmapping, Aerogrid, IGN, IGP, swisstopo, and the GIS User Community

File: AR2017_DCL_SITE.mxd

KOMAN Government Solutions, LLC 293 Boston Post Road West, Suite 100, Marlborough, MA 01752