KGS_2018a_Addendum_to_the_Long-Term_Monitoring_and_Maintenance_Plan_SHL_Devens.pdf

KOMAN Government Solutions, LLC Phone (508) 366-7442 293 Boston Post Road West, Suite 100 Fax (508) 366-7445 Marlborough, Massachusetts 01752 www.komangs.com

January 25, 2018

Ms. Penelope Reddy U.S. Army Corps of Engineers, New England District 696 Virginia Road Concord, MA 01742-2751

RE: Addendum to the Long-Term Monitoring and Maintenance Plan Shepley’s Hill Landfill

Former Fort Devens Army Installation, Devens, MA Contract No. W912WJ-15-C-0002

Dear Ms. Reddy, KOMAN Government Solutions, LLC (KGS) is pleased to provide this Addendum to the September 2015 Revised Final Long-Term Monitoring and Maintenance Plan (LTMMP) Update for Shepley’s Hill Landfill (SHL) (Sovereign, 2015). This Addendum documents the expanded monitoring program that was implemented during the spring and fall of 2017 at SHL and which will continue to be used during the 2018 groundwater monitoring events. As enclosed, this Addendum presents the following updates to the LTMMP:

Section 3.2.2, Table 1 – Sampling Monitoring Program

Section 3.2.2, Table 2 – Hydraulic Monitoring Program

Section 3.2.2, Figure 5 – Long-Term Monitoring Well Network – General

Section 3.2.2, Figure 6 – Long-Term Monitoring Well Network – Field

If you have any questions or require additional information, please contact me at (508) 219-6771 or jropp@komangs.com.

Sincerely, KOMAN Government Solutions, LLC

James Ropp, P.E.

Project Manager 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.

KGS File

Subsidiary of the Natives of Kodiak

TABLES

TABLE 1

SAMPLING MONITORING PROGRAM

Shepley's Hill Landfill, Devens, Massachusetts

Monitoring Frequency

Well ID (1)

TOC

Elevation

(ft msl)

Screen Interval (ft bgs)

Screen Elevation (ft msl)

Formation Type at Screen Interval

DQO for Inclusion into the LTMMP Addendum

UPGRADIENT AREA

SHL-12 248.62 15.0 - 30.0 233.62 - 218.62 Overburden Wells upgradient of source are necessary for determining groundwater parameters of what is entering the source zone

SHL-15 259.92 14.5 - 24.5 245.42 - 235.42 Overburden Wells upgradient of source are necessary for determining groundwater parameters of what is entering the source zone

SHL-24 238.75 110.0 - 120.0* 128.75 - 118.75 Overburden/Till/Bedrock Wells upgradient of source are necessary for determining groundwater parameters of what is entering the source zone

SHL-7 236.33 11.0 - 21.0 225.33 - 215.33 Overburden Wells upgradient of source are necessary for determining groundwater parameters of what is entering the source zone

SHM-93-10D 248.01 46.0 - 56.0 202.01 - 192.01 Bedrock Wells upgradient of source are necessary for determining groundwater parameters of what is entering the source zone

SHM-93-18B 237.31 78.5 - 88.5 158.81 - 148.81 Overburden Wells upgradient of source are necessary for determining groundwater parameters of what is entering the source zone

SHM-93-24A 238.42 13.2 - 23.2 225.22 - 215.22 Overburden Wells upgradient of source are necessary for determining groundwater parameters of what is entering the source zone

LANDFILL AREA

Ann ua l

N5-P1 242.65 95.5 - 97.5* 147.15 - 145.15 Bedrock Well provides the bedrock monitoring within the landfill source area. Sampled historically, use to chart trends in source zone chemistry.

SHM-10-07 246.82 40.0 - 50.0 206.82 - 196.82 Mid-depth Overburden Provides and additional sampling point within the landfill, east of historically sampled wells.

SHM-10-11 263.76 50.0 - 60.0 213.76 - 203.76 Deep Overburden Wells upgradient of source are necessary for determining groundwater parameters of what is entering the source zone

SHM-10-12 255.17 45.0 - 55.0 210.17 - 200.17 Mid-depth Overburden Provides and additional sampling point within the landfill, south of historically sampled wells.

SHM-10-13 244.77 60.0 - 70.0 184.77 - 174.77 Deep Overburden Provides and additional sampling point within the landfill, east of historically sampled wells.

SHM-10-14 237.62 60.0 - 80.0 177.62 - 157.62 Deep Overburden Provides and additional sampling point within the landfill, north of historically sampled wells.

SHM-10-15 243.68 45.0 - 55.0 198.68 - 188.68 Mid-depth Overburden Provides and additional sampling point within the landfill, south and east of historically sampled wells.

SHP-99-29X 243.34 19.0 - 29.0 254.16 - 244.16 Shallow Overburden Similar screen interval/close proximity to N5-P2 but much higher As conc. Sampled historically, use to chart trends in source zone chem.

SHP-2016-07A 265.30 22.0 - 32.0 243.30 - 233.30 Bedrock New well provides the bedrock monitoring adjacent the landfill source area and Shepley's Hill

SHP-2016-07B 265.33 70.0 - 80.0 195.33 - 185.33 Bedrock New well provides the bedrock monitoring adjacent the landfill source area and Shepley's Hill

Annual SHL-3 246.95 24.0 - 34.0 222.95 - 212.95 Mid-Overburden Added to annual sampling to monitor As concentrations as groundwater upgradient of the barrier wall.

BARRIER WALL AREA

Ann ua l

Semi-Annual

PZ-12-01 237.55 24.0 - 34.0 213.55 - 203.55 Shallow Overburden Supplemental barrier wall performance monitoring of As concentrations on downgradient side of barrier wall.

PZ-12-02 237.79 24.0 - 34.0 213.79 - 203.79 Shallow Overburden Supplemental barrier wall performance monitoring of As concentrations on upgradient side of barrier wall.

PZ-12-03 236.40 22.0 - 32.0 214.4 - 204.40 Shallow Overburden Supplemental barrier wall performance monitoring of As concentrations on downgradient side of barrier wall.

PZ-12-04 238.20 22.0 - 32.0 216.2 - 206.20 Shallow Overburden Supplemental barrier wall performance monitoring of As concentrations on upgradient side of barrier wall.

PZ-12-05 238.73 26.0 - 36.0 212.73 - 202.73 Mid-Overburden Supplemental barrier wall performance monitoring of As concentrations on downgradient side of barrier wall.

PZ-12-06 242.18 26.0 - 36.0 216.18 - 206.18 Mid-Overburden Supplemental barrier wall performance monitoring of As concentrations on upgradient side of barrier wall.

PZ-12-07 244.59 18.0 - 28.0 226.59 - 216.59 Mid-Overburden Supplemental barrier wall performance monitoring of As concentrations on downgradient side of barrier wall.

PZ-12-08 244.83 18.0 - 28.0 226.83 - 216.83 Mid-Overburden Supplemental barrier wall performance monitoring of As concentrations on upgradient side of barrier wall.

PZ-12-09 241.93 22.0 - 32.0 219.93 - 209.93 Shallow Overburden Supplemental barrier wall performance monitoring of As concentrations on downgradient side of barrier wall.

PZ-12-10 242.28 22.0 - 32.0 220.28 - 210.28 Shallow Overburden Supplemental barrier wall performance monitoring of As concentrations on upgradient side of barrier wall.

SHL-10 248.02 24.0 - 39.0 224.02 - 216.02 Shallow Overburden Historically sampled bi-annually; remains part of LTM plan to monitor As concentrations on the downgradient/southern side of barrier wall.

SHL-11 235.47 12.0 - 27.0 223.47 - 208.47 Shallow Overburden Evaluates barrier wall contaminant removal performance. Sampled historically, used to chart trends in source zone chemistry.

SHL-19 240.50 20.0 - 30.0 220.5 - 210.50 Shallow Overburden Historically sampled annually, continued annual sampling to monitor As concentrations on downgradient side of barrier wall.

SHL-20 235.95 39.0 - 49.0 196.95 - 186.95 Deep Overburden Evaluates barrier wall contaminant removal performance. Sampled historically, used to chart trends in source zone chemistry.

SHL-4 227.48 3.0 - 13.0 224.48 - 214.48 Shallow Overburden Historically sampled annually, continued annual sampling to monitor As concentrations on downgradient side of barrier wall.

SHM-11-02 240.73 39.0 - 49.0 201.73 - 191.73 Bedrock Monitors potential As migration through bedrock beneath the barrier wall.

SHM-11-06 236.17 25.0 - 35.0 211.17 - 201.17 Shallow Overburden Added to annual sampling to monitor As concentrations in groundwater

SHP-01-36X 223.95 3.0 - 8.0 220.95 - 215.95 Shallow Overburden Historically sampled annually, continue annual sampling to monitor As concentrations along Plow Shop Pond boundary.

SHP-01-37X 222.79 1.0 - 6.0 221.79 - 216.79 Shallow Overburden Historically sampled annually, continue annual sampling to monitor As concentrations along Plow Shop Pond boundary.

SHP-01-38A 220.86 1.5 - 6.5 219.36 - 214.36 Shallow Overburden Historically sampled annually, continue annual sampling to monitor As concentrations along Plow Shop Pond and downgradient of wall.

NEARFIELD AREA

Sem i-A nn ua l

SHL-5 217.60 3.0 - 13.0 214.60 - 204.60 Shallow Overburden Historically sampled to evaluate ATP effectiveness and trends; relatively low detects therefore a reduction to annual sampling.

SHL-8D 220.78 68.0 - 70.0 152.78 - 150.78 Deep Overburden Historically sampled to evaluate ATP effectiveness and trends; relatively low detects therefore a reduction to annual sampling.

SHL-8S 220.97 52.0 - 54.0 168.97 - 166.97 Shallow Overburden Historically sampled to evaluate ATP effectiveness and trends; relatively low detects therefore a reduction to annual sampling.

SHL-9 221.95 15.0 - 25.0 206.95 - 196.95 Shallow Overburden Historically sampled to evaluate ATP effectiveness and trends; relatively low detects therefore a reduction to annual sampling.

SHL-22 219.58 105.0 - 115.0 114.58 - 104.58 Deep Overburden/Till Historically sampled to evaluate ATP effectiveness and trends; relatively low detects therefore a reduction to annual sampling.

SHL-23 241.29 23.0 - 33.0 218.29 - 208.29 Overburden Historically sampled biannually to monitor potential western migration route downgradient of source area.

SHM-05-41A 222.48 42.0 - 44.0 180.48 - 178.48 Shallow Overburden Sampled historically, to evaluate ATP effectiveness and trends.

SHM-05-42A 216.81 40.0 - 42.0 176.81 - 174.81 Shallow Overburden Historically sampled to evaluate ATP effectiveness and trends; relatively low detects therefore a reduction to annual sampling.

SHM-05-42B 216.80 70.0 - 72.0 146.8 - 144.80 Mid-depth Overburden Historically sampled to evaluate ATP effectiveness and trends; relatively low detects therefore a reduction to annual sampling.

SHM-10-06 232.91 69.5 - 79.5 163.41 - 153.41 Deep Overburden Added to annual sampling to provide an additional monitoring point along the eastern perimeter of landfill.

SHM-10-06A 248.54 77.0 - 87.0 171.54 - 161.54 Deep Overburden Added to annual sampling to replace SHL-21. SHM-10-06A has a deeper screen interval and higher As concentrations than SHL-21.

SHM-10-16 219.23 75.0 - 85.0 144.23 - 134.23 Deep Overburden Added to annual sampling to provide an additional monitoring point northwest of the

ATP.

SHM-93-22C 220.69 124.3 - 134.3 96.39 - 86.39 Deep Bedrock Historically sampled to evaluate ATP effectiveness and trends; relatively low detects therefore a reduction to annual sampling.

SHM-96-5C 218.39 50.0 - 60.0 168.39 - 158.39 Mid-Depth Overburden Historically sampled historically to evaluate ATP effectiveness and trends; relatively low detects therefore a reduction to annual sampling.

Ann ua l

EW-01 @ ATP Port 226.80 60.0 - 85.0 166.8 - 141.80 Overburden Provides monitoring of As concentrations at the extraction wells and provide ATP effectiveness and trends.

EW-04 @ ATP Port 227.03 70.0 - 95.0 157.03 - 132.03 Overburden Provides monitoring of As concentrations at the extraction wells and provide ATP effectiveness and trends.

EPA-PZ-2012-1A 223.79 20.0 - 25.0 203.79 - 198.79 Shallow Overburden Provides an additional shallow/deep overburden sampling point east of the ATP.

EPA-PZ-2012-1B 223.53 70.0 - 75.0 153.53 - 148.53 Deep Overburden Provides an additional shallow/deep overburden sampling point east of the ATP.

EPA-PZ-2012-2A 223.38 20.0 - 25.0 203.38 - 198.38 Shallow Overburden Provides an additional shallow/deep sampling point in the nearfield area, northeast of the ATP.

EPA-PZ-2012-2B 223.37 75.0 - 80.0 148.37 - 143.47 Deep Overburden Provides an additional shallow/deep sampling point in the nearfield area, northeast of the ATP.

EPA-PZ-2012-3A 222.65 20.0 - 25.0 202.65 - 197.65 Shallow Overburden Provides an additional shallow/deep sampling point in the nearfield area, north of the

ATP.

EPA-PZ-2012-3B 222.57 70.0 - 75.0 152.57 - 147.57 Deep Overburden Provides an additional shallow/deep sampling point in the nearfield area, north of the

ATP.

EPA-PZ-2012-4A 226.60 20.0 - 25.0 206.6 - 201.60 Shallow Overburden Provides an additional shallow/deep sampling point in the nearfield area, north of the

ATP.

EPA-PZ-2012-4B 226.39 70.0 - 75.0 156.39 - 151.39 Deep Overburden Provides an additional shallow/deep sampling point in the nearfield area, north of the

ATP.

Sem i-A nn ua l

LTMMP Addendum, January 2018 Page 1 of 2

TABLE 1

SAMPLING MONITORING PROGRAM

Shepley's Hill Landfill, Devens, Massachusetts

Monitoring Frequency

Well ID (1)

TOC

Elevation

(ft msl)

Screen Interval (ft bgs)

Screen Elevation (ft msl)

Formation Type at Screen Interval

DQO for Inclusion into the LTMMP Addendum

NEARFIELD AREA (continued)

EPA-PZ-2012-5A 220.01 20.0 - 25.0 200.01 - 195.01 Shallow Overburden Provides an additional shallow/deep sampling point in the nearfield area, west of the

ATP.

EPA-PZ-2012-5B 219.38 80.0 - 85.0 139.38 - 134.38 Deep Overburden Provides an additional shallow/deep sampling point in the nearfield area, west of the

ATP.

EPA-PZ-2012-6A 234.25 25.0 - 30.0 209.25 - 204.25 Shallow Overburden Provides an additional shallow/deep sampling point in the nearfield area, west of the

ATP.

EPA-PZ-2012-6B 234.08 75.0 - 80.0 159.08 - 154.08 Deep Overburden Provides an additional shallow/deep sampling point in the nearfield area, west of the

ATP.

EPA-PZ-2012-7A 234.16 25.0 - 30.0 209.16 - 204.16 Shallow Overburden Provides an additional shallow/deep sampling point in the nearfield area, west of the

ATP.

EPA-PZ-2012-7B 234.03 60.0 - 65.0 174.03 - 169.03 Deep Overburden Provides an additional shallow/deep sampling point in the nearfield area, west of the

ATP.

SHP-2016-1A 227.27 13.9 - 23.0 213.37 - 204.27 Shallow Overburden Provides an additional shallow/deep sampling point in the nearfield area, west of the

ATP.

SHP-2016-1B 227.24 75.0 - 85.0 152.24 -142.24 Deep Overburden Provides an additional shallow/deep sampling point in the nearfield area, west of the

ATP.

SHP-2016-2A 225.93 20.0 - 25.0 205.93 - 200.93 Shallow Overburden Provides an additional shallow/deep sampling point in the nearfield area, west of the

ATP.

SHP-2016-2B 225.95 80.0 - 85.0 145.95 - 140.95 Deep Overburden Provides an additional shallow/deep sampling point in the nearfield area, west of the

ATP.

SHP-2016-3A 223.18 20.0 - 25.0 203.18 - 198.18 Shallow Overburden Provides an additional shallow/deep sampling point in the nearfield area, west of the

ATP.

SHP-2016-3B 223.18 80.0 - 85.0 143.18 - 138.18 Deep Overburden Provides an additional shallow/deep sampling point in the nearfield area, west of the

ATP.

SHP-2016-4A 229.97 25.0 - 30.0 204.97 - 199.97 Shallow Overburden Provides an additional shallow/deep sampling point in the nearfield area, west of the

ATP.

SHP-2016-4B 229.75 85.0 - 90.0 144.75 - 139.75 Deep Overburden Provides an additional shallow/deep sampling point in the nearfield area, west of the

ATP.

SHP-2016-5A 227.01 25.0 - 30.0 202.01 - 197.01 Shallow Overburden Provides an additional shallow/deep sampling point in the nearfield area, west of the

ATP.

SHP-2016-5B 226.95 85.0 - 90.0 141.95 - 136.95 Deep Overburden Provides an additional shallow/deep sampling point in the nearfield area, west of the

ATP.

SHP-2016-06A 241.90 81.0 - 86.0 160.90 - 155.90 Bedrock New bedrock well cluster to monitor potential western migration route of Arsenic within the bedrock.

SHP-2016-06B 241.89 102.0 -112.0 139.89 - 129.89 Bedrock New bedrock well cluster to monitor potential western migration route of Arsenic within the bedrock.

SHP-2016-06C 241.92 123.0 - 133.0 118.92 - 108.92 Bedrock New bedrock well cluster to monitor potential western migration route of Arsenic within the bedrock.

SHM-05-41B 222.33 62.0 - 64.0 160.33 - 158.33 Mid-depth Overburden Sampled historically, to evaluate ATP effectiveness and trends.

SHM-05-41C 222.57 88.0 - 93.0 134.57 - 129.57 Deep Overburden/Till Sampled historically, to evaluate ATP effectiveness and trends.

SHM-93-22B 219.39 82.3 - 92.3 137.09 - 127.09 Mid-depth Overburden Sampled historically, to evaluate ATP effectiveness and trends.

SHM-96-5B 218.92 80.0 - 90.0 138.92 - 128.92 Sand/Till Sampled historically, to evaluate ATP effectiveness and trends.

NORTHERN IMPACT AREA

Sem i-A nn ua l

SHM-10-02 223.03 53.0 - 63.0 170.03 - 160.03 Mid-depth Overburden Added sample location to monitor/evaluate possible western migration route.

SHM-10-03 232.05 58.5 - 68.5 173.55 - 163.55 Mid-depth Overburden Added sample location to monitor/evaluate possible western migration route.

SHM-10-04 212.61 55.0 - 65.0 157.61 - 147.61 Mid-depth Overburden Added sample location to monitor/evaluate possible western migration route.

SHM-10-05A 235.09 50.0 - 60.0 185.09 - 175.09 Mid-depth Overburden Added sample location to monitor/evaluate possible western migration route.

SHM-10-08 214.36 46.0 - 56.0 168.36 - 158.36 Deep Overburden /Till Added sample location to monitor/evaluate possible western migration route.

SHM-10-10 217.11 56.0 - 66.0 161.11 - 151.11 Deep Overburden /Till Monitors the northern edge of the As impacted groundwater.

SHM-13-01 208.08 39.0 - 49.0 169.08 - 159.08 Mid-depth Overburden Added sample location to monitor/evaluate possible western migration route.

SHM-13-02 218.72 60.0 - 70.0 158.72 - 148.72 Deep Overburden Monitors the northern edge of the As impacted groundwater.

SHM-13-05 225.14 75.0 - 85.0 150.14 - 140.14 Deep Overburden Monitors As concentrations within the core of the As impacted groundwater

SHM-13-14D 210.68 45.0 - 55.0 165.68 - 155.68 Deep Overburden Monitors As concentrations within 10 to 20 feet of Nonacoicus Brook at depth.

SHM-13-14S 211.03 5.0 - 15.0 206.03 - 196.03 Shallow Overburden Monitors As concentrations within 10 to 20 feet of Nonacoicus Brook

SHM-13-15 210.58 50.0 - 60.0 160.58 - 150.58 Deep Overburden Monitors the northern edge of the As impacted groundwater.

SHM-99-32X 221.28 72.0 - 82.0 149.28 - 139.28 Deep Overburden Sampled historically annually. Monitors As concentrations within the core of As impacted groundwater.

SHM-99-31C 214.60 68.0 - 78.0 146.6 - 136.60 Deep Overburden Sampled historically annually. Monitors As concentrations within the core of As impacted groundwater at depth.

Ann ua l

SHM-05-40X 223.34 32.0 - 34.0 191.34 - 189.34 Mid-Overburden/Till Sampled historically annually, Monitors As concentrations within the core of the As impacted groundwater.

SHM-07-03 227.90 25.0 - 35.0 202.9 - 192.90 Shallow Overburden Added sample location to monitor/evaluate possible western migration route.

SHM-07-05X 223.40 56.0 - 66.0 167.4 - 157.40 Mid-Depth Overburden Monitors As concentrations within the core of the As impacted groundwater

SHM-13-03 212.05 42.0 - 52.0 170.05 - 160.05 Deep Overburden /Till Monitors the leading/northern edge of the As impacted groundwater

SHM-13-04 227.02 20.0 - 30.0 207.02 - 197.02 Shallow Overburden Monitors As concentrations within the core of the As impacted groundwater

SHM-13-06 223.89 36.0 - 46.0 187.89 - 177.89 Deep Overburden/Till Monitors As concentrations within the core of the As impacted groundwater

SHM-13-07 225.64 27.0 - 37.0 198.64 - 188.64 Unknown Monitors As concentrations within the core of the As impacted groundwater

SHM-13-08 227.90 55.0 - 65.0 172.9 - 162.90 Mid Overburden/Till Monitors As concentrations within the core of the As impacted groundwater

Notes:

(1) Analyses: dissolved As, Fe, Mn, DOC, alkalinity, chloride, and sulfate (per 2015 LTMMP Update, Table 3)

Destroyed wells removed from program: N4-P1, N4-P2, N4-P3, and SHP-99-34A. SHP-13-03 in Nonacoicus Brook not found.

* - estimated value derived from Supplemental Groundwater Investigation (Harding ESE, 2003). Adapted from

SHL Long-Term Monitoring and Maintenance Plan Update (Sovereign, Revised Septemer 2015).

ft bgs = feet below ground surface ft msl = feet mean sea level

Sem i-A nn ua l

Annual Sampling (Fall)

Semi-Annual Sampling (Spring/Fall)

LTMMP Addendum, January 2018 Page 2 of 2

TABLE 2

HYDRAULIC MONITORING PROGRAM

Shepley's Hill Landfill, Devens, Massachusetts

Monitoring Frequency

Well ID

TOC

Elevation (ft msl)

Screen Interval (ft bgs)

Screen Elevation (ft msl)

Formation Type at Screen Interval

DQO for Inclusion within the LTMMP Addendum

UPGRADIENT AREA

SHL-12 248.62 15.0 - 30.0 233.62 - 218.62 Overburden Hydraulic monitoring point upgradient of the landfill

SHL-15 259.92 14.5 - 24.5 245.42 - 235.42 Overburden Hydraulic monitoring point upgradient of the landfill

SHL-17 233.79 6.0 - 16.0 227.79 - 217.79 Overburden Hydraulic monitoring point upgradient of the landfill

SHL-24 238.75 110.0 - 120.0* 128.75 - 118.75 OB/Till/BR Hydraulic monitoring point upgradient of the landfill

SHM-93-24A 238.42 13.2 - 23.2 225.22 - 215.22 Overburden Hydraulic monitoring point upgradient of the landfill

SHL-7 236.33 11.0 - 21.0 225.33 - 215.33 Overburden Hydraulic monitoring point upgradient of the landfill

Ann ua l

LANDFILL AREA

N5-P1 242.65 95.5 - 97.5 147.15 - 145.15 Bedrock Provides hydraulic monitoring point within the landfill area

N5-P2 242.69 23.0 - 28.0* 219.69 - 214.69 Bedrock Provides hydraulic monitoring point within the landfill area

N6-P1 259.02 85.5 - 87.5* 173.52 - 171.52 Bedrock Provides hydraulic monitoring point within the landfill area

N7-P1 255.59 66.0 - 68.0* 189.59 - 187.59 Bedrock Provides hydraulic monitoring point within the landfill area

N7-P2 256.04 29.0 - 34.0* 227.04 - 222.04 Overburden Provides hydraulic monitoring point within the landfill area

SHL-18 237.56 16.0 - 26.0 221.56 - 211.56 Overburden Provides hydraulic monitoring point within the landfill area

SHM-93-18B 237.31 78.5 - 88.5 158.81 - 148.81 Overburden Provides hydraulic monitoring point within the landfill area

SHM-10-07 246.82 40.0 - 50.0 206.82 - 196.82 Mid Overburden Provides hydraulic monitoring point within the landfill area

SHM-10-11 263.76 50.0 - 60.0 213.76 - 203.76 Deep Overburden Provides hydraulic monitoring point within the landfill area

SHM-10-12 255.17 45.0 - 55.0 210.17 - 200.17 Mid Overburden Provides hydraulic monitoring point within the landfill area

SHM-10-13 244.77 60.0 - 70.0 184.77 - 174.77 Deep Overburden Provides hydraulic monitoring point within the landfill area

SHM-10-14 237.62 60.0 - 80.0 177.62 - 157.62 Deep Overburden Provides hydraulic monitoring point within the landfill area

SHM-10-15 243.68 45.0 - 55.0 198.68 - 188.68 Mid Overburden Provides hydraulic monitoring point within the landfill area

SHP-95-27X 237.45 30.5 - 40.5 206.95 - 196.95 Overburden Provides hydraulic monitoring point within the landfill area

SHP-99-01C 274.15 19.7 - 29.7 254.45 - 244.45 Bedrock Provides hydraulic monitoring point within the landfill area

SHP-99-29X 243.34 19.0 - 29.0 254.16 - 244.16 Shallow Overburden Provides hydraulic monitoring point within the landfill area

SHP-99-35X 258.49 30.2 - 40.2 228.29 - 218.29 Shallow Overburden Provides hydraulic monitoring point within the landfill area

SHP-2016-07A 265.30 22.0 - 32.0 243.30 - 233.30 Bedrock Hydraulic monitoring point on western edge of the landfill

SHP-2016-07B 265.33 70.0 - 80.0 195.33 - 185.33 Bedrock Hydraulic monitoring point on western edge of the landfill

Ann ua l

Semi-Annual

BARRIER WALL AREA

N1-P1 229.92 65.0 - 70.0 164.92 - 159.92 Deep Overburden Historically used for hydraulic monitoring purposes

N1-P2 229.93 40.0 - 45.0 189.93 - 184.93 Mid Overburden Historically used for hydraulic monitoring purposes

N1-P3 230.08 12.0 - 17.0 218.08 - 213.08 Shallow Overburden Historically used for hydraulic monitoring purposes

N2-P1 222.01 35.0 - 40.0 187.01 - 182.01 Bedrock Historically used for hydraulic monitoring purposes

N2-P2 222.16 4.0 - 9.0 218.16 - 213.16 Shallow Water Table Historically used for hydraulic monitoring purposes

N3-P1 220.83 33.0 - 35.0* 187.83 - 185.83 Bedrock Historically used for hydraulic monitoring purposes

N3-P2 220.84 4.0 - 9.0* 216.84 - 211.84 Shallow Water Table Historically used for hydraulic monitoring purposes

SHL-10 248.02 24.0 - 39.0 224.02 - 216.02 Shallow Overburden Hydraulic monitoring point further east of barrier wall

SHM-93-10D 248.01 46.0 - 56.0 202.01 - 192.01 Bedrock Hydraulic monitoring point upgradient of the landfill

SHL-11 235.47 12.0 - 27.0 223.47 - 208.47 Shallow Overburden Hydraulic monitoring point east of barrier wall

SHL-19 240.50 20.0 - 30.0 220.5 - 210.50 Shallow Overburden Hydraulic monitoring point east of barrier wall

SHL-20 235.95 39.0 - 49.0 196.95 - 186.95 Deep Overburden Hydraulic monitoring point west of barrier wall

SHL-3 246.95 24.0 - 34.0 222.95 - 212.95 Mid-Overburden Hydraulic monitoring point east/upgradient of barrier wall

SHL-4 227.48 3.0 - 13.0 224.48 - 214.48 Shallow Overburden Hydraulic monitoring point east of barrier wall

SHM-11-02 240.73 39.0 - 49.0 201.73 - 191.73 Bedrock Hydraulic monitoring point west of barrier wall

SHM-11-06 236.17 25.0 - 35.0 211.17 - 201.17 Shallow Overburden Hydraulic monitoring point north of barrier wall

SHM-11-07 240.83 41.0 - 46.0 199.83 - 194.83 Bedrock Hydraulic monitoring point west of barrier wall

SHP-01-36X 223.95 3.0 - 8.0 220.95 - 215.95 Shallow Overburden Hydraulic monitoring point north of barrier wall

SHP-01-37X 222.79 1.0 - 6.0 221.79 - 216.79 Shallow Overburden Hydraulic monitoring point west of barrier wall

SHP-01-38A 220.86 1.5 - 6.5 219.36 - 214.36 Shallow Overburden Hydraulic monitoring point west of barrier wall

SHP-01-38B 221.03 18.0 - 23.0 203.03 - 198.03 Deep Overburden Hydraulic monitoring point west of barrier wall

SHP-05-43 260.17 50.5 - 60.5 209.67 - 199.67 Shallow Overburden Hydraulic monitoring point north of barrier wall

SHP-05-44 258.55 51.0 - 61.0 207.55 - 197.55 Mid Overburden Hydraulic monitoring point north of barrier wall

Ann ua l

PZ-12-01 237.55 24.0 - 34.0 213.55 - 203.55 Shallow Overburden Hydraulic monitoring point east of barrier wall

PZ-12-02 237.79 24.0 - 34.0 213.79 - 203.79 Shallow Overburden Hydraulic monitoring point west of barrier wall

PZ-12-03 236.40 22.0 - 32.0 214.4 - 204.40 Shallow Overburden Hydraulic monitoring point east of barrier wall

PZ-12-04 238.20 22.0 - 32.0 216.2 - 206.20 Shallow Overburden Hydraulic monitoring point west of barrier wall

PZ-12-05 238.73 26.0 - 36.0 212.73 - 202.73 Mid-Overburden Hydraulic monitoring point east of barrier wall

PZ-12-06 242.18 26.0 - 36.0 216.18 - 206.18 Mid-Overburden Hydraulic monitoring point west of barrier wall

PZ-12-07 244.59 18.0 - 28.0 226.59 - 216.59 Mid-Overburden Hydraulic monitoring point east of barrier wall

PZ-12-08 244.83 18.0 - 28.0 226.83 - 216.83 Mid-Overburden Hydraulic monitoring point west of barrier wall

PZ-12-09 241.93 22.0 - 32.0 219.93 - 209.93 Shallow Overburden Hydraulic monitoring point east of barrier wall

PZ-12-10 242.28 22.0 - 32.0 220.28 - 210.28 Shallow Overburden Hydraulic monitoring point west of barrier wall

NEARFIELD AREA

S em i-A nn ua l

SHL-13 220.71 5.0 - 20.0 215.71 - 200.71 Shallow Overburden Historically used for hydraulic monitoring purposes

SHL-22 219.58 105.0 - 115.0 114.58 - 104.58 Deep Overburden/Till Additional hydraulic monitoring point in nearfield

SHL-23 241.29 23.0 - 33.0 218.29 - 208.29 Overburden Additional hydraulic monitoring point in nearfield

SHL-5 217.60 3.0 - 13.0 214.60 - 204.60 Shallow Overburden Additional hydraulic monitoring point in nearfield

SHL-8D 220.78 68.0 - 70.0 152.78 - 150.78 Deep Overburden Additional hydraulic monitoring point in nearfield

SHL-8S 220.97 52.0 - 54.0 168.97 - 166.97 Shallow Overburden Additional hydraulic monitoring point in nearfield

SHL-9 221.95 15.0 - 25.0 206.95 - 196.95 Shallow Overburden Additional hydraulic monitoring point in nearfield

SHM-05-41A 222.48 42.0 - 44.0 180.48 - 178.48 Shallow Overburden Additional hydraulic monitoring point in nearfield

SHM-05-41B 222.33 62.0 - 64.0 160.33 - 158.33 Mid Overburden Additional hydraulic monitoring point in nearfield

SHM-05-41C 222.57 88.0 - 93.0 134.57 - 129.57 Deep Overburden/Till Additional hydraulic monitoring point in nearfield

SHM-05-42A 216.81 40.0 - 42.0 176.81 - 174.81 Shallow Overburden Additional hydraulic monitoring point in nearfield

SHM-05-42B 216.80 70.0 - 72.0 146.8 - 144.80 Mid Overburden Additional hydraulic monitoring point in nearfield

SHM-10-06 232.91 69.5 - 79.5 163.41 - 153.41 Deep Overburden Additional hydraulic monitoring point in nearfield

Ann ua

LTMMP Addendum, January 2018 Page 1 of 3

Shepley's Hill Landfill, Devens, Massachusetts

Monitoring Frequency

Well ID

TOC

Elevation (ft msl)

Screen Interval (ft bgs)

Screen Elevation (ft msl)

Formation Type at Screen Interval

DQO for Inclusion within the LTMMP Addendum

NEARFIELD AREA (continued)

SHM-10-06A 248.54 77.0 - 87.0 171.54 - 161.54 Deep Overburden Additional hydraulic monitoring point in nearfield

SHM-10-16 219.23 75.0 - 85.0 144.23 - 134.23 Deep Overburden Additional hydraulic monitoring point in nearfield

SHM-93-22B 219.39 82.3 - 92.3 137.09 - 127.09 Mid-depth Overburden Additional hydraulic monitoring point in nearfield

SHM-93-22C 220.69 124.3 - 134.3 96.39 - 86.39 Deep Bedrock Historically used for hydraulic monitoring purposes

SHM-96-5B 218.92 80.0 - 90.0 138.92 - 128.92 Sand/Till Additional hydraulic monitoring point in nearfield

SHM-96-5C 218.39 50.0 - 60.0 168.39 - 158.39 Mid Overburden Additional hydraulic monitoring point in nearfield

SHP-05-45A 228.48 20.0 - 25.0 208.48 - 203.48 Shallow Overburden Historically used for hydraulic monitoring purposes

SHP-05-45B 229.11 65.0 - 75.0 164.11 - 154.11 Mid Overburden Historically used for hydraulic monitoring purposes

SHP-05-46A 228.18 20.0 - 25.0 208.18 - 203.18 Mid Overburden Historically used for hydraulic monitoring purposes

SHP-05-46B 227.60 65.0 - 75.0 162.60 - 152.60 Shallow Overburden Historically used for hydraulic monitoring purposes

SHP-05-47A 217.39 1.0 - 2.0 216.39 - 215.39 Shallow Water Table Historically used for hydraulic monitoring purposes

SHP-05-47B 215.40 3.0 - 4.0 212.4 - 211.40 Shallow Water Table Historically used for hydraulic monitoring purposes

Ann ua l

SHP-2017-01 -- 70.0 - 75.0 -- Overburden New hydraulic monitoring point near extraction wells

SHP-2017-02 -- 85.0 - 90.0 -- Overburden New hydraulic monitoring point near extraction wells

EPA-PZ-2012-1A 223.79 20.0 - 25.0 203.79 - 198.79 Shallow Overburden Additional hydraulic monitoring point in nearfield

EPA-PZ-2012-1B 223.53 70.0 - 75.0 153.53 - 148.53 Deep Overburden Additional hydraulic monitoring point in nearfield

EPA-PZ-2012-2A 223.38 20.0 - 25.0 203.38 - 198.38 Shallow Overburden Additional hydraulic monitoring point in nearfield

EPA-PZ-2012-2B 223.37 75.0 - 80.0 148.37 - 143.47 Deep Overburden Additional hydraulic monitoring point in nearfield

EPA-PZ-2012-3A 222.65 20.0 - 25.0 202.65 - 197.65 Shallow Overburden Additional hydraulic monitoring point in nearfield

EPA-PZ-2012-3B 222.57 70.0 - 75.0 152.57 - 147.57 Deep Overburden Additional hydraulic monitoring point in nearfield

EPA-PZ-2012-4A 226.60 20.0 - 25.0 206.6 - 201.60 Shallow Overburden Additional hydraulic monitoring point in nearfield

EPA-PZ-2012-4B 226.39 70.0 - 75.0 156.39 - 151.39 Deep Overburden Additional hydraulic monitoring point in nearfield

EPA-PZ-2012-5A 220.01 20.0 - 25.0 200.01 - 195.01 Shallow Overburden Additional hydraulic monitoring point in nearfield

EPA-PZ-2012-5B 219.38 80.0 - 85.0 139.38 - 134.38 Deep Overburden Additional hydraulic monitoring point in nearfield

EPA-PZ-2012-6A 234.25 25.0 - 30.0 209.25 - 204.25 Shallow Overburden Additional hydraulic monitoring point in nearfield

EPA-PZ-2012-6B 234.08 75.0 - 80.0 159.08 - 154.08 Deep Overburden Additional hydraulic monitoring point in nearfield

EPA-PZ-2012-7A 234.16 25.0 - 30.0 209.16 - 204.16 Shallow Overburden Additional hydraulic monitoring point in nearfield

EPA-PZ-2012-7B 234.03 60.0 - 65.0 174.03 - 169.03 Deep Overburden Additional hydraulic monitoring point in nearfield

SHP-2016-1A 227.27 13.9 - 23.0 213.37 - 204.27 Shallow Overburden Additional hydraulic monitoring point in nearfield

SHP-2016-1B 227.24 75.0 - 85.0 152.24 -142.24 Deep Overburden Additional hydraulic monitoring point in nearfield

SHP-2016-2A 225.93 20.0 - 25.0 205.93 - 200.93 Shallow Overburden Additional hydraulic monitoring point in nearfield

SHP-2016-2B 225.95 80.0 - 85.0 145.95 - 140.95 Deep Overburden Additional hydraulic monitoring point in nearfield

SHP-2016-3A 223.18 20.0 - 25.0 203.18 - 198.18 Shallow Overburden Additional hydraulic monitoring point in nearfield

SHP-2016-3B 223.18 80.0 - 85.0 143.18 - 138.18 Deep Overburden Additional hydraulic monitoring point in nearfield

SHP-2016-4A 229.97 25.0 - 30.0 204.97 - 199.97 Shallow Overburden Additional hydraulic monitoring point in nearfield

SHP-2016-4B 229.75 85.0 - 90.0 144.75 - 139.75 Deep Overburden Additional hydraulic monitoring point in nearfield

SHP-2016-5A 227.01 25.0 - 30.0 202.01 - 197.01 Shallow Overburden Additional hydraulic monitoring point in nearfield

SHP-2016-5B 226.95 85.0 - 90.0 141.95 - 136.95 Deep Overburden Additional hydraulic monitoring point in nearfield

SHP-2016-06A 241.90 81.0 - 86.0 160.90 - 155.90 Bedrock Additional hydraulic monitoring point in nearfield

SHP-2016-06B 241.89 102.0 -112.0 139.89 - 129.89 Bedrock Additional hydraulic monitoring point in nearfield

SHP-2016-06C 241.92 123.0 - 133.0 118.92 - 108.92 Bedrock Additional hydraulic monitoring point in nearfield

Sem i-A nn ua l

NORTHERN IMPACT AREA

SHM-10-01 209.65 60.5 - 70.5 149.15 - 139.15 Deep Overburden/Till Hydraulic monitoring point along western portion of NIA

SHM-10-02 223.03 53.0 - 63.0 170.03 - 160.03 Mid Overburden Hydraulic monitoring point along western portion of NIA

SHM-10-03 232.05 58.5 - 68.5 173.55 - 163.55 Mid Overburden Hydraulic monitoring point along western portion of NIA

SHM-10-04 212.61 55.0 - 65.0 157.61 - 147.61 Mid Overburden Hydraulic monitoring point along western portion of NIA

SHM-10-05A 235.09 50.0 - 60.0 185.09 - 175.09 Mid Overburden Additional hydraulic monitoring point in north impact area

SHM-10-08 214.36 46.0 - 56.0 168.36 - 158.36 Deep OB / Till Additional hydraulic monitoring point in north impact area

SHM-10-10 217.11 56.0 - 66.0 161.11 - 151.11 Deep OB / Till Additional hydraulic monitoring point in north impact area

SHM-05-39A 221.53 37.0 - 39.0 184.53 - 182.53 Mid Overburden Additional hydraulic monitoring point in north impact area

SHM-05-39B 221.51 66.0 - 68.0 155.51 - 153.51 Deep Overburden Additional hydraulic monitoring point in north impact area

SHM-13-01 208.08 39.0 - 49.0 169.08 - 159.08 Mid Overburden Additional hydraulic monitoring point in north impact area

SHM-13-02 218.72 60.0 - 70.0 158.72 - 148.72 Deep Overburden Additional hydraulic monitoring point in north impact area

SHM-13-05 225.14 75.0 - 85.0 150.14 - 140.14 Deep Overburden Additional hydraulic monitoring point in north impact area

SHM-13-14D 210.68 45.0 - 55.0 165.68 - 155.68 Deep Overburden Additional hydraulic monitoring point in north impact area

SHM-13-14S 211.03 5.0 - 15.0 206.03 - 196.03 Shallow Overburden Additional hydraulic monitoring point in north impact area

SHM-13-15 210.58 50.0 - 60.0 160.58 - 150.58 Deep Overburden Additional hydraulic monitoring point in north impact area

SHM-99-32X 221.28 72.0 - 82.0 149.28 - 139.28 Deep Overburden Additional hydraulic monitoring point in north impact area

SHM-99-31A 214.34 4.0 - 14.0 210.34 - 200.34 Shallow OB / WT Historically used for hydraulic monitoring purposes

SHM-99-31B 214.39 50.0 - 60.0 164.39 - 154.39 Mid Overburden Historically used for hydraulic monitoring purposes

SHM-99-31C 214.60 68.0 - 78.0 146.6 - 136.60 Deep Overburden Historically used for hydraulic monitoring purposes

SHM-99-34B 224.91 74.5-79.5 150.4 - 145.4 Deep Overburden Historically used for hydraulic monitoring purposes

SHP-05-48A 217.31 1.0 - 2.0 216.31 - 215.31 Shallow Water Table Historically used for hydraulic monitoring purposes

SHP-05-48B 215.96 2.0 - 3.0 213.96 - 212.96 Shallow Water Table Historically used for hydraulic monitoring purposes

SHP-05-49A 216.67 1.0 - 2.0 215.67 - 214.67 Shallow Water Table Historically used for hydraulic monitoring purposes

SHP-05-49B 215.14 2.5 - 3.5 212.64 - 211.64 Shallow Water Table Historically used for hydraulic monitoring purposes

Ann ua l

SHM-05-40X 223.34 32.0 - 34.0 191.34 - 189.34 Mid Overburden/Till Additional hydraulic monitoring point in north impact area

SHM-07-03 227.90 25.0 - 35.0 202.9 - 192.90 Shallow Overburden Additional hydraulic monitoring point in north impact area

SHM-07-05X 223.40 56.0 - 66.0 167.4 - 157.40 Mid Overburden Additional hydraulic monitoring point in north impact area

SHM-13-03 212.05 42.0 - 52.0 170.05 - 160.05 Deep OB / Till Additional hydraulic monitoring point in north impact area

SHM-13-04 227.02 20.0 - 30.0 207.02 - 197.02 Shallow Overburden Additional hydraulic monitoring point in north impact area

SHM-13-06 223.89 36.0 - 46.0 187.89 - 177.89 Deep Overburden/Till Additional hydraulic monitoring point in north impact area

SHM-13-07 225.64 27.0 - 37.0 198.64 - 188.64 Unknown Additional hydraulic monitoring point in north impact area

SHM-13-08 227.90 55.0 - 65.0 172.9 - 162.90 Mid Overburden/Till Additional hydraulic monitoring point in north impact area

Sem i-A nn ua

LTMMP Addendum, January 2018 Page 2 of 3

Shepley's Hill Landfill, Devens, Massachusetts

Monitoring Frequency

Well ID

TOC

Elevation (ft msl)

Screen Interval (ft bgs)

Screen Elevation (ft msl)

Formation Type at Screen Interval

DQO for Inclusion within the LTMMP Addendum

SURFACE WATER

PSP-01 218.14 -- -- Staff Gauge Used for monitoring surface water elevations within PSP

SHSG-13-01G 205.53 -- -- Staff Gauge Monitor water levels in Nonacoicus Brook

SHSG-13-02G 208.25 -- -- Staff Gauge Monitor water levels in Nonacoicus Brook

SHSG-13-03G 209.99 -- -- Staff Gauge Monitor water levels in Nonacoicus Brook

SHSG-14-01G 213.71 -- -- Staff Gauge Monitoring water level elevations northwest outlet of PSP

Notes:

All wells included in the SHL LTM sampling program (Table 1) are to be gauged at minimum annually in addition to those wells listed above.

Adapted from SHL Long Term Monitoring and Maintenance Plan Update (Sovereign, Revised September 2015).

(*) estimated value derived from Supplemental Groundwater Investigation (Harding ESE, 2003).

ft msl = feet mean sea level

Destroyed wells removed from program (2017): N4-P1, N4-P2, N4-P3, and SHP-99-34A.

Ann ua l

Annual Hydraulic Only (Fall)

Semi-Annual Hydraulic Only (Spring/Fall) ft bgs = feet below ground surface

LTMMP Addendum, January 2018 Page 3 of 3

Subsidiary of the Natives of Kodiak

FIGURES

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CAP-1B

CAP-2B

CAP-3

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EPA-PZ-2012-1A/B

EPA-PZ-2012-2A/B

EPA-PZ-2012-3A/BEPA-PZ-2012-4A/B

EPA-PZ-2012-5A/B

EPA-PZ-2012-6A/B

EPA-PZ-2012-7A/B

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-8S/D

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/B

SHM-05-40X

SHM-05-41A

SHM-05-41B

SHM-05-41C

SHM-05-42A/B

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-13-14S/D

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-05-46A/B

SHP-05-47A/B

SHP-05-48A/B

SHP-05-49A/B

SHP-07-03A/B

SHP-99-01B

SHP-99-01C

SHP-99-29X

SHP-99-33A/B

SHP-99-34A

SHP-99-35X

SHP-2016-01A/B

SHP-2016-02A/B

SHP-2016-03A/B

SHP-2016-04A/B

SHP-2016-05A/B

SHP-2016-06A/B/C

SHP-2016-07A/B

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-01-17X32M-01-18XBR

32M-92-01X

32M-92-03X

32Z-01-08X 32Z-01-11XBR

32Z-01-12XBR

32Z-01-06XBR

32Z-01-07XOB

SB-16-06

SB-16-07

SB-16-08

SB-16-09

SB-16-10

SB-16-11

SB-16-12

SB-16-13

SB-16-14

SB-16-15

SB-16-16

SB-16-17

SB-16-18

SB-16-19

SB-16-20

SB-16-21

MW-1

MW-4-1

MW-7

MW-9

MW-11A

MW-14

MW-16

MW-22

EW-1

EW-1S

EW-4

EW-4S

PSP-01

SHMSG-13-01G

SHMSG-13-02G

SHMSG-13-03G

SHMSG-14-01G

Shirley StreetWest Main Street

Scul ley

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Fitchburg and Stony Brook Railroad Lines

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Red Cove

Plow Shop Pond

Outlet of PSP

Nonacoicus Brook

Arsenic Treatment Plant

Northern Impact Area Wells

Nearfield Area Wells

Barrier Wall Area Wells

Landfill Area Wells

Upgradient Area Wells

Shepley's Hill

Legend @A Overburden Monitoring Well/Piezometer &< Groundwater Profiling Location/Monitoring Well &< Monitoring Well ED Bedrock Monitoring Well

< Bedrock Study Core %2 Extraction Well !A Soil Boring !U Stream Gauge

Barrier Wall Former Fort Devens Boundary

Long-Term Monitoring Network - General Shepley's Hill Landfill

Former Fort Devens Army Installation and Sudbury Annex Devens, Massachusetts

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

Figure

Date:

10/16/2017

0 300150

Feet µ

File: SHL_2017LTMMP_FIELD_General.mxd

KOMAN Government Solutions, LLC

Aerial Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community

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EPA-PZ-2012-6A/B

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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-8S/D

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/B

SHM-05-40X

SHM-05-41A

SHM-05-41B

SHM-05-41C

SHM-05-42A/B

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-13-14S/D

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-05-46A/B

SHP-05-47A/B

SHP-05-48A/B

SHP-05-49A/B

SHP-07-03A/B

SHP-99-01B

SHP-99-01C

SHP-99-29X

SHP-99-33A/B

SHP-99-34A

SHP-99-35X

SHP-2016-01A/B

SHP-2016-02A/B

SHP-2016-03A/B

SHP-2016-04A/B

SHP-2016-05A/B

SHP-2016-06A/B/C

SHP-2016-07A/B

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-01-17X32M-01-18XBR

32M-92-01X

32M-92-03X

32Z-01-08X 32Z-01-11XBR

32Z-01-12XBR

32Z-01-06XBR

32Z-01-07XOB

SB-16-06

SB-16-07

SB-16-08

SB-16-09

SB-16-10

SB-16-11

SB-16-12

SB-16-13

SB-16-14

SB-16-15

SB-16-16

SB-16-17

SB-16-18

SB-16-19

SB-16-20

SB-16-21

MW-1

MW-4-1

MW-7

MW-9

MW-11A

MW-14

MW-16

MW-22

EW-1

EW-1S

EW-4

EW-4S

PSP-01

SHMSG-13-01G

SHMSG-13-02G

SHMSG-13-03G

SHMSG-14-01G

Shirley StreetWest Main Street

Scul ley

Road

Molumco Road

Fitchburg and Stony Brook Railroad Lines

Co ok

St ree t

Red Cove

Plow Shop Pond

Outlet of PSP

Nonacoicus Brook

Arsenic Treatment Plant

Northern Impact Area Wells

Nearfield Area Wells

Barrier Wall Area Wells

Landfill Area Wells

Upgradient Area Wells

Shepley's Hill

Legend @A Overburden Monitoring Well/Piezometer &< Groundwater Profiling Location/Monitoring Well &< Monitoring Well ED Bedrock Monitoring Well

< Bedrock Study Core %2 Extraction Well !A Soil Boring !U Stream Gauge

Barrier Wall Former Fort Devens Boundary

Long-Term Monitoring Network Shepley's Hill Landfill

Former Fort Devens Army Installation and Sudbury Annex Devens, Massachusetts

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

Figure

Date:

10/16/2017

0 300150

Feet µ

File: SHL_2017LTMMP_FIELD.mxd

KOMAN Government Solutions, LLC

Aerial Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community

PZ-12-07

SHM-13-01

SHL-10

PSP-01

Well/Boring/Gauge Identification LTM Well/Piezometer Annual Sampling (Fall) LTM Well/PiezometerSemi-Annual Sampling (Spring/Fall) LTM Well/Piezometer Hydraulic Monitoring Only