2017-06-14_AOC50_2017_injection_plan_summary.pdf

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Attached to: SOLICITATION ISSUED**Environmental Services and Remedial Action Operations for BRAC Legacy Sites Former Fort Devens, Devens, Massachusetts
Solicitation number: W912WJ19R0003
Issued by: Department of the Army Corps of Engineers Engineering District New England

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2017-06-14 AOC50 2017 injection plan summary

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160 East Main Street, Suite 2F, Westborough, MA 01581 – T 508.366.7442 – F 508.366.7445 – www.komangs.com

June 14, 2017

U.S. Army Corps of Engineers New England District 696 Virginia Road Concord, MA 01742 Attn: Ms. Penelope Reddy

Subject: Area of Contamination 50, 2017 Injection Program Summary Former Fort Devens Army Installation, Devens, MA Contract No. W912WJ-15-C-0002

Dear Ms. Reddy:

On behalf of the U.S. Army Corps of Engineers (USACE), New England District, and U.S. Army BRAC Environmental Office Fort Devens, this letter provides a summary of the planned 2017 enhanced reductive dechlorination (ERD) injection program for your information.

The injection program is scheduled to be conducted in July 2017.

The 2017 injection program consists of organic carbon substrate injected into selected existing injection wells and direct injections into the subsurface via direct push technology. The program includes injecting substrate into up to six existing injection wells and conducting up to 41 direct injections. Approximately 34,400 gallons of organic substrate will be injected.

The planned locations, specific substrate, approximate gallons, and planned depths are listed in Table 1. The injection wells and approximate area of the planned direct injections are shown on Figure 1. The actual injections may differ from the plan based on field conditions. A summary of the injection program will be provided in the AOC 50 2017 Annual Report.

Please feel free to contact me at (508) 366-7442 or jropp@komangs.com if you have any questions.

Sincerely, KOMAN Government Solutions, LLC

James Ropp, P.E.

Project Manager

Attachment: Table 1 AOC 50 2017 Injection Program

Figure 1 Injection Locations & Tetrachloroethene Concentration in Groundwater – November 2016

160 East Main Street, Suite 2F, Westborough, MA 01581 – T 508.366.7442 – F 508.366.7445 – www.komangs.com cc: Robert Simeone, BRAC Devens, MA Carol Keating, EPA Region 1, Boston, MA

Laurie O'Connor, USEPA Region 1 David Chaffin, MassDEP Boston Ron Ostrowski, MassDevelopment, Devens, MA

Ms. Laurie Nehring, PACE Ms. Julie Corenzwit, PACE Mr. Richard Doherty, Engineering and Consulting Resources, Inc.

Sgt. Brian Lee, Mass. State Police KGS File

Table 1

AOC 50 2017 ERD Injection Program

Former Fort Devens Army Installation, Devens, MA

LOCATION LOCATION AOC 50 INJECTION PRODUCT INJECTION INJECTION

TYPE AREA (AND WATER) VOLUME (gal) DEPTH (ft bgs)*

IW-27 Injection Well Area 3 ABC+Ole' 450 70 - 90

IW-26 Injection Well Area 3 ABC+Ole' 450 70 - 90

IW-25 Injection Well Area 3 ABC+Ole' 450 70 - 90

IW-35 Injection Well Area 4 ABC+Ole' 420 104 - 124

IW-36 Injection Well Area 4 ABC+Ole' 420 106 - 126

G6M-06-01X Injection Well Area 4 ABC+Ole' 420 109 - 129

GP-17 DPT Injection ABC+Ole'+Fe 875 25 - 50

GP-18 DPT Injection ABC+Ole'+Fe 875 25 - 50

GP-19 DPT Injection ABC+Ole'+Fe 875 25 - 50

GP-20 DPT Injection ABC+Ole'+Fe 875 25 - 50

GP-21 DPT Injection ABC+Ole'+Fe 875 25 - 50

GP-22 DPT Injection ABC+Ole'+Fe 875 40 - 65

GP-23 DPT Injection ABC+Ole'+Fe 875 40 - 65

GP-24 DPT Injection ABC+Ole'+Fe 875 40 - 65

GP-25 DPT Injection ABC+Ole'+Fe 875 40 - 65

GP-26 DPT Injection ABC+Ole'+Fe 875 40 - 65

GP-27 DPT Injection ABC+Ole'+Fe 875 40 - 65

GP-28 DPT Injection ABC+Ole'+Fe 875 40 - 65

GP-29 DPT Injection ABC+Ole'+Fe 875 40 - 65

GP-30 DPT Injection ABC+Ole'+Fe 875 40 - 65

GP-31 DPT Injection ABC+Ole'+Fe 875 40 - 65

GP-32 DPT Injection ABC+Ole'+Fe 875 40 - 65

GP-33 DPT Injection ABC+Ole'+Fe 875 40 - 65

GP-34 DPT Injection ABC+Ole'+Fe 875 40 - 65

GP-35 DPT Injection ABC+Ole'+Fe 875 40 - 65

GP-36 DPT Injection ABC+Ole'+Fe 875 40 - 65

GP-37 DPT Injection ABC+Ole'+Fe 875 40 - 65

GP-38 DPT Injection ABC+Ole'+Fe 800 70 - 95

GP-39 DPT Injection ABC+Ole'+Fe 800 70 - 95

GP-40 DPT Injection ABC+Ole'+Fe 800 70 - 95

GP-41 DPT Injection ABC+Ole'+Fe 650 105 - 125

GP-42 DPT Injection ABC+Ole'+Fe 650 105 - 125

GP-43 DPT Injection ABC+Ole'+Fe 650 105 - 125

GP-45 DPT Injection ABC+Ole'+Fe 650 105 - 125

GP-46 DPT Injection ABC+Ole'+Fe 650 110 - 130

GP-47 DPT Injection ABC+Ole'+Fe 650 110 - 130

GP-48 DPT Injection ABC+Ole'+Fe 650 110 - 130

GP-49 DPT Injection ABC+Ole'+Fe 650 110 - 130

GP-50 DPT Injection ABC+Ole'+Fe 650 110 - 130

GP-51 DPT Injection ABC+Ole'+Fe 650 120 - 135

GP-52 DPT Injection ABC+Ole'+Fe 650 120 - 135

GP-53 DPT Injection ABC+Ole'+Fe 650 120 - 135

GP-54 DPT Injection ABC+Ole'+Fe 650 120 - 135

GP-55 DPT Injection ABC+Ole'+Fe 650 120 - 135

GP-56 DPT Injection ABC+Ole'+Fe 650 120 - 135

GP-57 DPT Injection ABC+Ole'+Fe 650 120 - 135

Notes:

DPT = direct push technology ERD = enhanced reductive dechlorination ft bgs = feet below ground surface gal = gallon

* Injection depths for injection wells refer to the screened intervals.

Area 4 - G6M-13-02X

Area 5

G6M-13-01X/

G6M-97-05X

Existing Injection Well Network

Proposed 2017 DPT Injection Locations

Area 1 -

G6M-13-05X to IW-18/IW-17

FDSA

Area 1 - G6M-07-02X

Area 3 - G6M04-02X

Area 4/5

!@!P

")E

#0 #0

Nashua River

IWS Syste m Enc losure

Build ing

Build ing 3818

Build ing 3822

Build ing 3820

T 3807

T 3823

Fitc hburg Road /Route 2A

Form e r N orth Post

Me rrim ac k Ware house , Inc .

Rubb Air Door

G6M-13-03X

MW-3

G6M-02-01X

G6M-03-07X

X SA-12-98X X SA-12-97X

X SA-12-96X

X SA-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

Area 4 DPT Injection Area

Area 4/5 DPT Injection Area

Area 5 DPT Injection Area

Area 3 DPT Injection Area

5.6 10

2.5

1.5

5.4

4.9

Le ge nd !> ERD LTM We ll - Sam ple d Se m i-Annually !> ERD LTM We ll - Sam ple d Annually #0 ERD LTM We ll - Sam ple d Bie nnially !( Monitoring We ll Conve rte d to Inje c tion We ll ")E Mic roWe ll - Sam ple d Annually !( Inje c tion We ll !@ Inje c tion We ll Installe d 01/2014 !P Dry We ll !@ Floor Drain

G6M-92-11X We ll/Gauge /Pie zom e te r Id e ntific ation ERD Inje c tion We ll Transe ct DPT Inje c tion Are a Inte rpre tive Te trac hloroe the ne (PCE) Contour (μg/L)

160 Te trac hloroe the ne (PCE) Conc e ntration (μg/L) Form e r Fort De ve ns Bound ary

Figure 1 Injection Locations &

Tetrachloroethene Concentrations in Groundwater - November 2016

2017 ERD Inje c tion Plan

AOC 50

Form e r Fort De ve ns Arm y Installation and Sudbury Anne x De ve ns, Massac huse tts

160 East Main Stre e t, Suite 2F, We stborough, MA 01581

Figure

Date :

06/13/2017

0 300150

Fe e tµ

Form e r N orth Post

Fire Pond

T 3803

T 3840

IW-13D

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

G6M-94-18X /IW-38

IW-11

IW-8

IW-7

IW-17D

IW-17S

IW-18D

IW-19D

IW-19S

IW-18S

IW-12

IW-16D

IW-16SIW-15S

IW-15D

IW-13S IW-14S

IW-14S

G6M-03-01X

G6M-03-02X

G6M-04-10X

G6M-95-19X

G6M-96-22A

G6M-13-05X

G6M-13-06X G6M-93-13X

G6M-95-20X

G6M-04-12X

G6M-96-13B

500 5

1,000 3,000

3,200

2.1

4.3

2.5

1.6

0.82 J

0 12060

Fe e t

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

Area 1 Inset

See Area 1 Inset

N ote s:

1.Fe ature locations provid e d by HGL

2. μg/L = Mic rogram s pe r lite r

3. ERD = Enhanc e d Re d uc tive De c hlorination

4. GW = Groundwate r

5. J = Estim ate

6. LTM = Long-Te rm Monitoring

7. N D = N on-d e te c t KOMAN Government Solutions, LLC

File : ERDIN J2017_AOC50_PCE_ N ov2016.m xd

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