Text

Enclosure 1 - Final Remedial Investigation Report for the Cfff Site, Appendix F - Boring Logs
	ML23114A365
Person / Time
Site:	Westinghouse
Issue date:	02/28/2019
From:	; Westinghouse
To:	; Office of Nuclear Material Safety and Safeguards
Shared Package
ML23114A358	List: ML23114A359; ML23114A360; ML23114A361; ML23114A365; ML23114A372; ML23114A373;
References
	LTR-RAC-23-31
	Download: ML23114A365 (1)
	v • d • e

Remedial Investigation Report Appendix F Boring Logs AECOM

WELL NUMBER L-1 TOTAL DEPTH 86 FT BGS A:COM PAGE 1 OF 3 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/13/2019 COMPLETED 06/13/2019 SURVEYING BY/DATE AECOM/ 10-03-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_a_tio_n_ _ _ _ _ _ __ EASTING 744366.85 NORTHING 2022545.46 DRILLING EQUIPMENT GP 3230 DT/GP 8140 LS GROUNDELEVATION 113.53ft CASING ELEVATION ~N~/A~--

DRILLING METHOD _G_e_o~p_ro_be/_S_on_ic_ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __

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w (I) a:: [ij 0.00 Silt (ML), strong brown 7.5YR 5/6, soft few clay, moist 113.5 Backfill 0.0 Type: Cement/

Bentonite Grout 0-86 ft bgs 0.0 3.00 Silt, (ML) strong brown 7.5YR 5/6, soft, trace clay, moist 110.5 5.00 Silt (ML), strong brown 7.5YR 4/6, soft, wet 108.5 0.0

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........... 8 50 Sand (SP), yellowish brown 10YR 5/8, fine grained, poorly graded, wet 105.0

}.\\\ 13.50 Sand (SP), light yellowish brown 10YR 6/4, medium grained, poorly graded, 100.0 saturated 0.0 i;!(

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Sand (SP), yellow 10YR 7/6, medium grained, poorly graded, saturated 95.0 0.0 i;!(

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O.O ({:{: saturated Sand (SW), very pale brown 10YR 7/3, fine to coarse grained, well graded, 88.0 saturated 1-,-,---,---------------------------+---I<

Sand (SW) light gray 10YR 7/1, medium to coarse grained, well graded, 85.0 saturated

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34.00 Silt (ML), gray 10YR 6/1, soft, wet 79.5 (Continued Next Page)

WELL NUMBER L-1 TOTAL DEPTH 86 FT BGS A:COM PAGE 2 OF 3 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 $1TE NAME Westinghouse WELL DIAGRAM

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w Cl) 0::: w 0.0 37.00 Silt (ML), gray 5Y 6/1, soft, wet 0.0 0.0 4.9 Sand (SW) gray 5Y 6/1, fine to medium grained, well graded, saturated 5.6

!l!l!foo Sand (SW), gray 10YR 6/1, fine to coarse grained, well graded, saturated 5.1 4.2 4.6 rm 59.00 Sand (SW) gray 10YR 6/1, fine to coarse grained, well graded, saturated 3.7 8.2 rm 61 .00 Sand (SW) light gray, fine to medium grained, well graded, saturated

63.00 Sand (SW), fine to medium grained, few silt, well graded, saturated Wood, black 5Y 2.5/1 Sand (SP), gray 10YR 5/1, fine grained, few silt, JX)Orly graded, saturated Sand,(SW), gray 10YR 5/1, fine to medium grained, well graded, saturated

WELL NUMBER L-1 TOTAL DEPTH 86 FT BGS A:COM PAGE 3 OF 3 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

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1-----------------------------t-------r-Sand (SW) gray 10YR 5/1, fine to medium grained, well graded, chemical 34.5

4. 6 / / 7900 odor, saturated 23.6 :::::::

1-----------------------------t-------r-Sand (SW), medium to coarse grained, well graded, Saturated 31 .5

2. 2 : : : : : : : 82.00 83.00 Clay (CL) dark gray 2.5Y 4/1, very stiff, moderate plasticity, dry 30.5

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WELL NUMBER L-2 TOTAL DEPTH 49 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/24/2019 COMPLETED 06/24/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~_lo_ra_ti_o_n_ _ _ _ _ _ _ __ EASTING 744470.67 NORTHING 2023425.91 DRILLING EQUIPMENT _G_e_o~p_ro_be_8_14_0_L_S_ _ _ _ _ _ _ _ __ GROUNDELEVATION 116.66ft CASING ELEVATION ~N~/A~--

DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __

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[ij Clayey Sand (SC), fill, yellowish red 5YR 4/6, fill, fine to medium grained, 116.7 some clay, well graded, moist Backfill Type: Cement/

Bentonite Grout 0-49 ft bgs Clayey Sand (SC), fill, strong brown 7.5YR 5/6, fine to medium grained, little 113.2 clay, well graded, moist Clayey Sand (SC), fill, strong brown 7.5 YR 5/6, fine to coarse grained, little 110.2 clay, well graded, moist 10.00 Clay (CH), very dark gray 2.5 Y 3/1, soft, high plasticity, wet 106.7 14.00 Clay (CH), very dark gray 5Y 3/1, soft, high plasticity, wet 102.7 17.00 Silty Clay (CL-ML) very dark gray 5Y 3/1, soft, high plasticity, wet 99.7 Sand (SP), grayish brown 2.5Y 5/2, medium to coarse grained, well graded, 98.7 saturated Sand (SW), light gray 10YR 7/2, fine to medium grained, well graded, 92.7 saturated 29.50 Clay (CH) very dark gray 7.5YR 3/1, stiff, high plasticity, moist 87.2 (Continued Next Page)

WELL NUMBER L-2 TOTAL DEPTH 49 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

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w Cl) 0::: w 39.50 Clay (CH) dark gray 7.5YR 4/1, very stiff, moderate plasticity, few silt, moist 77.2 Clay (CL), gray 7.5YR 5/1, very stiff, low plasticity, dry 72.7

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WELL NUMBER L-3 TOTAL DEPTH 49 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/24/2019 COMPLETED 06/24/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~_lo_ra_ti_o_n_ _ _ _ _ _ _ __ EASTING 744381 .22 NORTHING 2023323.26 DRILLING EQUIPMENT _G_e_o~p_ro_be_8_14_0_L_S_ _ _ _ _ _ _ _ __ GROUND ELEVATION 115.33 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __

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[ij Clayey Sand (SC), Fill, yellowish red 5YR 4/6, fine to medium grained, some clay, well graded, fill Backfill 0.0 Type: Cement/

Bentonite Grout 0-49 ft bgs 0.0 Clayey Sand (SC), Fill, yellowish red 5YR 4/6, fine to coarse grained, little clay, moist to wet, fill 0.0 Clayey Sand (SC), Fill, dark grayish brown 2.5Y 4/2, fine to medium grained, little clay, saturated 0.0 0.5 Sand (SW), grayish brown 2.5Y 5/2, fine to medium grained, well graded, saturated 1.0 Clay (CL), dark gray 5Y 4/1, soft, plastic, moist Sand (SW), gray 2.5Y 5/1, fine to coarse grained, well graded, saturated 0.4 0.7 oooo t - , - - - - , - - - - - - - - - - - - - - - - - - - - - - - - - - - t - - - t Sand (SW), gray 2.5Y 5/1, fine to coarse grained, few gravel, few cobbles, 0.3 } } 2750 well graded, saturated 30.00 Clay (CL), very dark gray 10YR 3/1, stiff, low plasticity, dry 0.0 (Continued Next Page)

WELL NUMBER L-3 TOTAL DEPTH 49 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

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w Cl) 0::: w 35.00 Clay (CL), very dark gray 10 YR 4/1 , stiff, low plasticity, dry 80.3 Clay (CH) dark gray 2.5 Y 4/1, very stiff, moderate plasticity, damp to moist 74.8 Clay (CH) very dark gray, as above 70.8

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WELL NUMBER L-4 TOTAL DEPTH 39 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/25/2019 COMPLETED 06/25/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_a_tio_n_ _ _ _ _ _ __ EASTING 744252.61 NORTHING 2023227.28 DRILLING EQUIPMENT _G_e_o~p_ro_be_8_14_0_L_S_ _ _ _ _ _ _ _ __ GROUND ELEVATION 114.49 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __

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[ij Clayey Sand (SC), Fill, yellowish red 5YR 4/6, fine to medium grained, some 114.5 clay, well graded, moist Backfill Type: Cement/

Bentonite Grout 0.0 0-39 ft bgs 6.50 Clayey Silt (ML), gray 2.5Y 5/1 to light olive brown 2.5Y 5/3, soft, little clay, 108.0 0.1 moist 0.2 12.50 Silt (ML), dark gray 10YR 4/1, soft, wet 102.0 Sand (SW), gray 10YR 5/1, fine to medium grained, well graded, saturated 98.5 24.00 Silt (ML), dark gray 10YR 4/1, soft, wet 90.5 Sand (SW), gray 10YR 6/1, fine to coarse grained, few gravel, few cobbles, 89.5 well graded, saturated 30.00 Clay (CL), dark gray 10YR 4/1, very stiff, low plasticity, dry 84.5 33.50 Clay (CL), very dark gray 2.5Y 3/1, very stiff, low plasticity, dry 81 .0 (Continued Next Page)

WELL NUMBER L-4 TOTAL DEPTH 39 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

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w Cl) 0::: w 37.00 Clay (CL), as above with slightly higher plasticity 77.5 Bottom of borehole at 39 feet.

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WELL NUMBER L-5 TOTAL DEPTH 38.5 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/14/2019 COMPLETED 06/14/2019 SURVEYING BY/DATE AECOM/ 10-03-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~_lo_ra_ti_o_n_ _ _ _ _ _ _ __ EASTING 743820.34 NORTHING 2022922.26 DRILLING EQUIPMENT _G_P_3_2_3_0_D_T_ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 112.26 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __

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Bentonite Grout 0-38.5 ft bgs 0.0 Sand (SP), dark yellowish brown 10YR 4/6, fine grained, poorly graded, 105.8 saturated 0.0 0.0 0.0 Sand (SP) light gray 10YR 7/1, medium grained, poorly graded, saturated 95.8 0.0 Sand (SW), light yellowish brown 2.5Y 6/4, fine to medium grained, well 93.8 0.0 graded, saturated 0.0 0.0 i , - , ; - ; c + , - t - - - - , - - - - - - - - - - - - - - - - - - - - - - - - - - - t - - - - - l <

Silty Sand (SM), dark gray 7.5YR 4/1, fine to medium grained, little silt, well 89.8 graded, saturated Sand (SP), light gray 10YR 7/1, medium grained, poorly graded, saturated 88.3

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~I ., .,1 - , - , - - - , - - - - - - - - - - - - - - - - - - - - - - - - - - - t - - - - t o.2 =~~Jn't~:,~~~1.m~"mro~~a~.,~,=,.~ 81 .8

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WELL NUMBER L-5 TOTAL DEPTH 38.5 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

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WELL NUMBER L-6 TOTAL DEPTH 38.5 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/14/2019 COMPLETED 06/14/2019 SURVEYING BY/DATE AECOM/ 10-03-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~_lo_ra_ti_o_n_ _ _ _ _ _ _ __ EASTING ---'7'-'4"'"36=--4=8_ _ _ __ NORTHING 2023441 .65 DRILLING EQUIPMENT _G_P_3_2_3_0_D_T_ _ _ _ _ _ _ _ _ __ GROUNDELEVATION 111 .5ft CASING ELEVATION ~N~/A~--

DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __

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[ij 0.00 Silt (ML), dark reddish brown 5YR 3/4, soft, low plasticity, moist Backfill 0.0 Type: Cement/

Bentonite Grout 2.00 Clayey Silt (ML), reddish brown 5YR 4/4, soft, moderate plasticity, little clay, 0-38.5 ft bgs moist 0.0 5.00 Silt (ML), strong brown 7.5YR 5/6, soft, low plasticity, moist 0.0 7.50 Silt (ML), strong brown 7.5YR 5/6, soft, low plasticity, wet 0.0 Silt (ML), dark gray 5Y 4/1 , soft, wet 10.50 Sandy Silt (ML), dark gray 5Y 4/1 , soft, some fine sand, wet Sand (SP), light gray 7.5Y 7/1, fine grained, poorly graded, saturated Silt (ML), very dark gray 10YR 3/1 , few fine sand, soft, wet 0.0 ::\\( 17.50 Sand (SP), light gray 10YR 7/1, fine grained, poorly graded, saturated

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Sand (SW), light gray 10YR 7/1 , medium to coarse grained, well graded, saturated 4.3 r-.~.~.-'t::c:-=:--:--:-W-:-ood--:----------------------t-:-:---::-1<

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§ 34.00 Clay (CH) dark gray 10YR 4/1 , very stiff, moderate plasticity, moist

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WELL NUMBER L-6 TOTAL DEPTH 38.5 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

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w Cl) 0::: w Bottom of borehole at 38.5 feet.

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WELL NUMBER L-7 TOTAL DEPTH 46.5 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/10/2019 COMPLETED 06/11/2019 SURVEYING BY/DATE AECOM/ 10-02-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~_lo_ra_ti_o_n_ _ _ _ _ _ _ __ EASTING 743790.7 NORTHING 2024199.57 DRILLING EQUIPMENT _G_P_3_2_3_0_D_T_ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 114.59 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD _G_e_o~p_ro_be

_ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __

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[ij o.oo Silt (ML), dark yellowish brown 10YR 3/4, soft, moist Backfill 0.0 1.00 Silt (ML), strong brown 7.5 YR 5/6, soft, moist Type: Cement/

Bentonite Grout 0-46.5 ft bgs 0.0 5.00 Silt (ML), yellowish brown 10 YR 5/6, medium stiff, trace clay, moist 0.0 7.50 Sandy Silt (ML), dark yellowish brown 10YR 4/6, little fine sand, solt, saturated 8.50 Silt (ML), dark yellowish brown 10YR 4/6, stiff, moist 0.0 10.50 Clay (CH), yellowish brown 10YR 5/4, few silt, medium stiff, high plasticity, 0.0 moist 13.50 Clay (CH), very dark grayish brown 10YR 3/2, as above 0.0 15.00 Clay (CH), greenish gray GLEY1 6/1, medium stiff, high plasticity, moist 0.0 16.50 Silt (ML), yellowish brown 10YR 5/4, soft, micaceous, saturated 18.50 Sandy Silt (ML), dark yellowish brown 10YR 4/4, some fine sand, saturated 0.0 20.00 Sandy Silt (ML), greenish gray GLEY1 5/1, little fine sand, soft, saturated 0.0 21 .50 Silt (ML), very dark greenish gray GLEY1 3/1, soft 0.0 0.0 1 . - ' . . - - t - , - - , - - - , - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Sand (SW), greenish gray GLEY1 6/1, fine to medium grained, well graded, saturated (Continued Next Page)

WELL NUMBER L-7 TOTAL DEPTH 46.5 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

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w Cl) 0::: w 0.0 Gravel and Cobbles (GW), light gray 10YR 7/1, gravel to cobbles, few sand,

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38.50 well graded, saturated 0.0 IIIIIII ~;-!t-~d~ra-\~-W-),-lig_h_t_g-ra_y_1_0_Y_R_7_/1-,-fi-ne-to-coa--rs_e_g-ra-in_ed_,w-el-1g-r-ad_ed_,- - ~

0.0 Clay (CL), black 10YR 2/1, very stiff, low plasticity, dry

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WELL NUMBER L-8 TOTAL DEPTH 47 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/11/2019 COMPLETED 06/12/2019 SURVEYING BY/DATE AECOM/ 10-02-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~_lo_ra_ti_o_n_ _ _ _ _ _ _ __ EASTING 743727.35 NORTHING 2024656.33 DRILLING EQUIPMENT _G_P_3_2_3_0_D_T_ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 113.4 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __

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[ij 0.00 Silt (ML), dark yellowish brown 10YR 4/4, trace clay, medium stiff, moist Backfill 0.0 Type: Cement/

Bentonite Grout 0-47 ft bgs 3.00 Silt (ML), dark yellowish brown 10YR 4/6, soft, micaceous, moist 0.0

.-::- .. 6 00 Sand (SP), dark yellowish brown 10YR 4/6, fine grained, poorly graded, wet 0.0 **...:.'.;:-: *

; ; ; ; ; ; 7.00 !!~d (SW), yellowish brown 10YR 5/6, fine to medium grained, well graded,

- - - - ' 1-,8-5...,.0__S_a_n_d_(_S_W_)_,r-ed .5-Y_R_5-/6-,-f-in-e-to_m_ed_i-um-g-ra-in_ed_,-w-el-1g-r-ad_ed_,-w-et_t_o---+----t--

0.0 saturated Sand (SW), greenish gray GLEY1 6/1, medium to coarse grained, few gravel,

/ / 1850 well graded, saturated Sandy Gravel (GW) greenish gray GLEY1 6/1, little coarse sand, well graded, saturated Clayey Silt (MH), greenish gray GLEY1 6/1, soft, low plasticity, wet Silty Clay (CL-ML), greenish gray GLEY1 6/1, high plasticity, moist

/}!( 25.00 Sand (SP), greenish gray GLEY1 5/1, fine grained, poorly graded, saturated 0.0 1r-r...-.t----,---------------------------t------t--

Sand (SW), greenish gray GLEY1 5/1, fine to medium grained, well graded, wet

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(Continued Next Page)

WELL NUMBER L-8 TOTAL DEPTH 47 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

w

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w Cl) 0::: w 0.0 Sand (SW), light gray 2.5Y 7/1, medium to coarse grained, trace gravel and cobbles, well graded, saturated Sand (SW), light gray 5Y 7/1, medium to coarse grained, well graded, 1.5 saturated Sand (SW), light gray 5 Y 7/1, medium to coarse grained, trace gravel, well 2.5 graded, saturated Q.

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WELL NUMBER L-9 TOTAL DEPTH 43.5 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/13/2019 COMPLETED 06/13/2019 SURVEYING BY/DATE AECOM/ 10-02-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~_lo_ra_ti_o_n_ _ _ _ _ _ _ __ EASTING 744230.32 NORTHING ~2~0=24~5~5~3.~8_ _ _ __

DRILLING EQUIPMENT _G_P_3_2_3_0_D_T_ _ _ _ _ _ _ _ _ __ GROUNDELEVATION 113.72ft CASING ELEVATION ~N~/A~--

DRILLING METHOD Geoprobe HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

~

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[ij o.oo Silt (ML), dark yellowish brown 10YR 4/4, soft, moist 113.7 Backfill Type: Cement/

1.50 Silty Clay (CL), reddish brown 5YR 4/4, soft, moderate plasticity, moist 112.2 Bentonite Grout 0-43.5 ft bgs Sand (SP), very pale brown 10YR 8/4, medium grained, poorly graded, moist 103.7 to wet Sand (SP), very pale brown 10YR 8/4, medium grained, poorly graded, 100.2 saturated Sand (SW), gray 10YR 6/1, medium to coarse grained, well graded, saturated 95.2 Sand (SW), gray 10YR 6/1, medium to coarse grained, few gravel, trace 93.7 cobbles, well graded, saturated Sand (SP), dark grayish brown 2.5Y 4/2, medium grained, poorly graded, 90.2 saturated 28.50 lnterbedded Sand (SP) and Silty Clay (CL-ML): Sand, light brownish gray 85.2 2.5Y 6/2, medium grained, wet; Silty Clay, very dark gray 2.5Y 3/1, soft, moist 0.0 0.0 Sand and Gravel (GW), light gray 10YR 7/1, medium grained to gravel, trace 81 .7

} } 3200 cobbles, well graded, saturated (Continued Next Page)

WELL NUMBER L-9 TOTAL DEPTH 43.5 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

w

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~

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w Cl) 0::: w 0.0 Clayey Sand (SC), greenish gray GLEY2 6/1 , medium grained, some clay, saturated 0.0 Clay (CL), dark gray 10YR 4/1, very stiff, low plasticity, dry 0.0 0.0 Q.

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WELL NUMBER L-10 TOTAL DEPTH 38.5 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/13/2019 COMPLETED 06/13/2019 SURVEYING BY/DATE AECOM/ 10-02-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~_lo_ra_ti_o_n_ _ _ _ _ _ _ __ EASTING 744108.54 NORTHING 2025009.77 DRILLING EQUIPMENT _G_e_o~p_ro_be_8_14_0_L_S_ _ _ _ _ _ _ _ __ GROUNDELEVATION 113.8ft CASING ELEVATION ~N~/A~--

DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

~

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[ij 0.00 Silt (ML), dark yellowish brown 10YR 4/6, medium stiff, trace clay, moist Backfill Type: Cement/

Bentonite Grout 0-38.5 ft bgs 0.0 8.50 Silt (ML), dark yellowish brown 10YR 4/6, medium stiff, trace clay, moist

9.00 Sand and Gravel (SW) yellowish red 5YR 5/6 to light gray 10YR 7/2, medium

: ::::::: 1--,---,--g-r-ai-n-ed_t_o_g_ra_v_e_l._w_e_ll-gr-a-ded_._w_e_t- - - - - - - - - - - - - - t - - - - - l <

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2.1 / } 1-1...,.7-

.o.,...o_s_a_n_d_(_s_w_)_.a_s_a_bo_ve_e_x_ce_p_t_fi_n_e_to_coa

__ rs_e_g_ra-in_ed_,- - - - - - - - - + - - - - 1 Sand (SW), light gray 10YR 7/2, medium to coarse grained, well graded, 0.5 saturated 0.3 l!l!lf~

22.50 Clay (CH), very dark grayish brown 2.5Y 3/2, soft, high plasticity, moist 23.50 Silty Clay (CL-ML), very dark grayish brown 2.5Y 3/2, soft, little silt, moderate

..-._-,-:*.-: 24 .50 ..____,_P_la_s_tic_it_,_y'-,m_oi_st_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ___,

1_5 ?*(/::: Sand (SP), gray 10YR 6/1, medium grained, poorly graded, saturated

26.00 Sand (SW), gray 10YR 6/1, medium to coarse grained, well graded, saturated 1*0 i-e._._..,_.,,......

*-_.

r2 .5.,...0_S_a_n_d_(_S_P_),-lig_h_t_g-ra_y_1_0_Y_R_7_/1-,-m-ed-iu_m_g_r_a-in-ed-,-poo-r-ly_g_r-ad_ed_,s-a-tu-r-at-ed--t----t

{!;\/

0.6 /f 30.00 Sand (SW), light gray 10YR 7/1, medium to coarse grained, well graded, saturated 0.1 ) { 32.00 Sand (SW), gray 10YR 7/1, as above 33.50 Clay (CL), black 2.5Y 2.5/1, very stiff, low plasticity, dry (Continued Next Page)

WELL NUMBER L-10 TOTAL DEPTH 38.5 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

w

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MATERIAL DESCRIPTION

~

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w Cl) 0::: w 0.0 36.00 Clay (CL), dark gray 10YR 4/1, very stiff, low plasticity, dry 77.8 0.0 Bottom of borehole at 38.5 feet.

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WELL NUMBER L-11 TOTAL DEPTH 39 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/19/2019 COMPLETED 06/19/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~_lo_ra_ti_o_n_ _ _ _ _ _ _ __ EASTING 745596.98 NORTHING 2023639.86 DRILLING EQUIPMENT _G_e_o~p_ro_be_8_14_0_L_S_ _ _ _ _ _ _ _ __ GROUND ELEVATION 138.22 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

~

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[ij 0.00 Silty Clay (CL), yellowish brown 10YR 5/8, medium stiff, moderate plasticity, little silt, moist Backfill Type: Cement/

Bentonite Grout 0-39 ft bgs 14.5 Silt (ML) strong brown 7.5YR 5/8, stiff, few clay, moist Clayey Sand (SC) pale brown 10YR 6/3, fine to medium grained, little clay, well graded, saturated Sand (SW), very pale brown 10YR 7/4, medium to coarse grained, trace gravel, well graded, saturated Sand (SW), as above with dark stained layer at 25 ft Silt (ML), light gray 10YR 7/1, soft, wet Clayey Sand (SC), yelowish brown, medium to coarse grained, little clay, few 6.7 gravel, wet

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<i......;:a.:.......&...----'----'----"'-"'"""-"""'------------------------------'----"'--"-'"..,.,.-"-'"'---------'

(Continued Next Page)

WELL NUMBER L-11 TOTAL DEPTH 39 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

w

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w Cl) 0::: w Bottom of borehole at 39 feet.

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WELL NUMBER L-12 TOTAL DEPTH 49 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/25/2019 COMPLETED 06/25/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~_lo_ra_ti_o_n_ _ _ _ _ _ _ __ EASTING --'7'-'4"'"6"'"'15=9_ _ _ __ NORTHING 2023442.12 DRILLING EQUIPMENT _G_e_o~p_ro_be_8_14_0_L_S_ _ _ _ _ _ _ _ __ GROUND ELEVATION 138.07 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

~

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[ij 0.00 Clay (CL), yellowish brown 10YR 5/8, medium stiff, few silt, high plasticity 138.1 Backfill Type: Cement/

Bentonite Grout 0-49 ft bgs Q.

(9 Clayey Sand (SC), reddish yellow 10YR 6/8, fine grained, some clay, dry 135.1 z

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, 11 .50 Sand (SP), light gray 2.5Y 7/2, fine grained, poorly graded, saturated 126.6 0

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u plasticity, moist w

0.0 (Continued Next Page)

WELL NUMBER L-12 TOTAL DEPTH 49 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

w

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a. w MATERIAL DESCRIPTION C:

~

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w Cl) 0::: w 36.00 Clay (CL), dark gray 5Y 4/1, stiff, high plasticity, moist 102.1 0.0

_:.:,*:.-: 38.00 Sand (SP), gray 5Y 5/1, fine grained, poorly graded, saturated 100.1

"--/.::*:: :.

Sand (SW), pale brown 2.5Y 7/3, fine to medium grained, well graded, 98.6 saturated

lililf~ Clay (CL), very dark gray 2.5Y 7/1, very stiff, high plasticity, moist 94.1

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WELL NUMBER L-13 TOTAL DEPTH 49 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/25/2019 COMPLETED 06/25/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~_lo_ra_ti_o_n_ _ _ _ _ _ _ __ EASTING 745515.57 NORTHING 2023429.34 DRILLING EQUIPMENT _G_e_o~p_ro_be_8_14_0_L_S_ _ _ _ _ _ _ _ __ GROUND ELEVATION 135.85 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

~

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w- 0 0 0

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[ij Clayey Sand (SC), light yellowish brown 2.5Y 6/4, fine grained, some clay Backfill Type: Cement/

Bentonite Grout 0-49 ft bgs Clayey Sand (SC), light yellowish brown 2.5Y 6/4, fine grained, little clay, damp Silty Sand (SM), light yellowish brown 10YR 6/4, fine grained, some silt, moist O.? /}t- 9

-.o-o-,---~-:_a~-~-~-~_:_b_isb_/_ow_n_i_sh-ye_ll_ow_1_0Y_R_6_/6_._fi_ne_t_o_m_ed_iu-m-gr-a-in_ed_._f_ew_c_la-y,_w_e_ll-+----t--

1.2 : ] :1-1-1_.s_o_:_:_t~-~-a\_~_W_)_.1-ig_h_tg-r-ay_10_Y_R-7/_2_,f-in_e_t_o_coa_r-se_g_r_a-in_ed_._w_e_ll_g_ra_d_ed_._ _ _ _ _--<

iiiiiroo ~:=>* ,~,,~,om 7/2, 11,e ~ m~"m ~a~.~*,_

1-----------------------------t-----r-Sand (SW), light gray 10YR 7/2, fine to coarse grained, well graded, saturated 1o !:!:!roo 22.50 Silt (ML), yellowish brown 10YR 5/8 to pale brown 2.5Y 7/3, soft, few clay, 0.1 moist 0.9

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~I Clay (CL), olive yellow 2.5Y 6/6, very stiff, few silt, low plasticity, dry g

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§ Clay (CL), light brownish gray 2.5Y 6/2, very stiff, low plasticity, dry

<i......;:a.:.......&...----'----'----"'-"""'-"""'------------------------------'----"'--"-'"..,.,.-"-'"'---------'

(Continued Next Page)

WELL NUMBER L-13 TOTAL DEPTH 49 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

w

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a. w MATERIAL DESCRIPTION C:

~

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w Cl) 0::: w 39.00 Clay (CL), gray 2.5Y 5/1, very stiff, low plasticity, dry 96.9 Clay (CL), black 2.5Y 5/1, very stiff, low plasticity, dry 91 .4

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WELL NUMBER L-14 TOTAL DEPTH 49 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/26/2019 COMPLETED 06/26/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_a_tio_n_ _ _ _ _ _ __ EASTING 745991 .72 NORTHING 2022741 .83 DRILLING EQUIPMENT _G_e_o~p_ro_be_8_14_0_L_S_ _ _ _ _ _ _ _ __ GROUND ELEVATION 139.52 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE N/A WELL DIAGRAM

~

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w- 0 0 0

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I

[ij 0.00 Silty Clay (CL-ML), strong brown 7.5YR 5/8, stiff, moist, (1' of recovery 9-14),

trace fine to medium grained sand Backfill Type: Cement/

Bentonite Grout 0-49 ft bgs 4.1 22.1 12.00 Sandy Clay (CL), light yellowish brown 2.5Y 6/4, brittle, dry (1' of recovery 9-14), fine grained sand 22.4 Sand (SP), white 7.5YR 8/1, fine grained, poorly graded, very loose, trace silt 123.5 Clay (CL), dark gray 7.5YR 4/1, few silt, highly plastic, (3' of recovery 19-29)

.00 Sand (SW), very pale brown 10YR 7/4, medium to coarse grained, some gravel, few silt, (3' of recovery 19-29)

Sand (SW), orange (7.5YR 5/8) pale brown (2.5Y 8/2), m-c sand, few silt Sand (SW), very pale brown 10YR 7/4, few silt, (3' of recovery 19-29),

medium to coarse grained Silty Sand (SM), 2.5Y 8/2, fine to medium sand, 3 dark gray 7.5YR 4/1, plastic clay (CL) few silt -31' (Continued Next Page)

WELL NUMBER L-14 TOTAL DEPTH 49 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

w

...J ~ $

a. w MATERIAL DESCRIPTION C:

~

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w Cl) 0::: w Sand (SP), 2.5Y 8/1, medium to coarse grained, few silt Silty Sand (SM), 7.5YR 6/8 reddish yellow, fine to medium grained 0.2 Sand (SP), pale brown 2.5Y 8/2, medium to coarse grained, trace silt

-:*: (* .:: 40.50 Silty Sand (SM), 2.5Y 4/1 dark gray, fine grained, coarsening downward,

-: *::: :-:* some gravel, trace cobbles Silty Clay (CL-ML), very dark gray 2.5Y 3/1 , stiff (Black Mingo Clay)

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WELL NUMBER L-15 TOTAL DEPTH 49 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/26/2019 COMPLETED 06/26/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_a_tio_n_ _ _ _ _ _ __ EASTING 746109.34 NORTHING 2022761 .74 DRILLING EQUIPMENT _G_e_o~p_ro_be_8_14_0_L_S_ _ _ _ _ _ _ _ __ GROUND ELEVATION 139.32 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE N/A WELL DIAGRAM

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[ij 0.00 Clayey Silt (MH), light gray (5YR 7/1) and reddish yellow (5YR 6/8), mottled, trace fine sand Backfill Type: Cement/

Bentonite Grout 0-49 ft bgs 7.7 8.00 Clayey Silt (MH) 7.5YR 5/8 strong brown and light gray 5YR 7/1 mottled 3.6

-:*: (* .:: 12.00 Silty Sand (SM), 2.5Y 8/1 White, fine grained, poorly graded 0.5 -:*::::- :*

15.00 Sandy Silt (ML), same color as above (5YR7/1 + 5YR 6/8)

Sand (SP), 2.5Y 8/3 pale brown, medium to coarse grained, trace qtz gravel, trace silt Sand (SP), 2.5Y 8/3, coarse, some gravel, poorly graded

=~

24.00 Sandy Silt (ML), strong brown (7.5YR 6/8) and (10YR 7/2) light gray, fine

..-..-,.:*.-: 25 _00 ~g~ra_in_e_d_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~

ii( ~II (SP). 25Y m. ~,"m ~ =ra* gral,~. raw~-. - ,

28.50 Sandy Silt (ML), brownish yellow (10YR 6/8), some gravel, coarse grained Sand (SW), pale brown (2.5Y 8/2), trace mica, fine to medium grained (Continued Next Page)

WELL NUMBER L-15 TOTAL DEPTH 49 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

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WELL NUMBER L-16 TOTAL DEPTH 49 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/26/2019 COMPLETED 06/26/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_a_tio_n_ _ _ _ _ _ __ EASTING 746180.41 NORTHING 2022798.57 DRILLING EQUIPMENT _G_e_o~p_ro_be_8_14_0_L_S_ _ _ _ _ _ _ _ __ GROUNDELEVATION 139.15ft CASING ELEVATION ~N~/A~--

DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE N/A WELL DIAGRAM

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[ij 0.00 Clayey Silt (MH), light gray and reddish brown (5YR 7/1 and 5YR 6/8),

mottled, trace fine sand Backfill Type: Cement/

Bentonite Grout 0-49 ft bgs 0.1 8.00 Clayey Silt (MH), strong brown (7.5YR 5/8) and light gray (5YR 7/1), mottled 0.0 12.00 Sandy Silt (ML), reddish brown (5YR 6/8) and light gray (5YR 7/1) 0.1

- ;- .:: 17.00 Silty Sand (SM), brownish yellow (10YR 6/6), fine grained Sand (SW), fine to medium grained, few silt, few mic, loose 0.2 Silty Sand (SM), light gray (5YR 7/1) and reddish brown (5YR 6/8), fined grained sand, trace clay Sand (SP), brownish yellow (10YR 6/8), fine to medium grained, trace gravel Sand (SW), pale brown (2.5Y 7/3), fine to coarse grained, few gravel, well graded 0.2

28.50 Sand (SW), brownish yellow (10YR 6/8), medium to coarse grained, little 0.0 29,-.5-,0-\__,,g'-ra_v_el'-,f_e_w_s_ilt'-,r_o_un_d_e_d_to_s_u_b_ro_u_nd_ed l->'rl'rl-,1-,- _ _ _ _ _ _ _ _ _ _ _ __,~-~,

Sandy Clay (CL), greenish gray (GLEY, 5G5/1) and strong brown (7.5YR 4/6), medium to coarse grained Sand (SW), pale brown (2.5Y 8/2), fine to coarse grained, trace silt, well graded, trace mica (Continued Next Page)

WELL NUMBER L-16 TOTAL DEPTH 49 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

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rounded cobbles Silty Clay (CL-ML), very dark gray 2.5Y 3/1, stiff

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WELL NUMBER L-17 TOTAL DEPTH 47 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 08/15/2019 COMPLETED 08/16/2019 SURVEYING BY/DATE AECOM/ 10-03-19 DRILLING CONTRACTOR SAEDACCO EASTING 744713.16 NORTHING 2022000.38 DRILLING EQUIPMENT _G_e_o~p_ro_be_8_15_0_L_S_ _ _ _ _ _ _ _ __ GROUND ELEVATION 115.3 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

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[ij o.oo Silt (ML), brown 10YR 4/3, soft, moist Backfill Type: Cement/

Bentonite Grout 0-47 ft bgs 0.0 0.0 O.O 1--, _.:t-1-,-o-

.,..... .s.,...o_s_a_n_d_(_S_P_).-g-ra-yi-

.s-h-b-row_n_1_0_Y_R_5_/2-,-f-in_e_g-ra-in_ed_,poo--rly-gr-a-de_d_,-s-at-u-ra-ted-,-t-----l<

0.0 mm 12.50 : i;~). b""° 10YR 4/3, ""' grai,ed, - , ~ - . ,a""'"* raw silt

m o.o :_:.:_:.:_:.:. 16.00 Sand (SW), yellowish brown 10YR 5/6, fine to medium grained, few silt, well graded, saturated

: : : : : ;1-1 .5-,---S-a_n_d_(_S_W_)_,pa-le_b_r_ow_n_2_ .5_Y_7_/3-,-fi-n-e-to-coa--rs_e_g-ra-in_ed_,-w-el-1g-r-ad_ed_,- - - t - - - - - - t - -

34.0 ,:.:,:, 18.00 .__s_at_u_ra_ted _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ___,

19.00 Sand and Cobbles (SW), gray 2.5Y 4/1, medium grained to cobbles, well graded, saturated 30.3 *:*: (* .:: 2o.oo Sandy Silt (ML), very dark grayish brown, soft, wet 12 _7 / :::: ) '--S-ilt-y~S-a-nd~(S-M~)-,-da-r~k-g-ra-yi~

.s-h~b-row_n_2-.5-Y-4/_2_,f-in_e_g-ra-i-ned-,-litt_l_e-si-lt-,s-a-tu-r-at~ed 10.6 .-:-:--.-:- :

Sand (SW), light gray 5Y7/1, fine to medium grained, few silt, well graded, saturated 29.00 Clay (CH), black 2.5Y 2.5/1, stiff, moderate plasticity, moist 34.00 Clay (CH) gray 7.5 YR 5/1, as above (Continued Next Page)

WELL NUMBER L-17 TOTAL DEPTH 47 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

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w Cl) 0::: w 37.00 Clay (CH) gray 10YR 6/1 , stiff, high plasticity, moist 78.3 Bottom of borehole at 47 feet.

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WELL NUMBER L-18 TOTAL DEPTH 37 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 08/19/2019 COMPLETED 08/19/2019 SURVEYING BY/DATE AECOM/ 10-03-19 DRILLING CONTRACTOR SAEDACCO EASTING 744180.95 NORTHING ~2~0=22=8~8~6.~5_ _ _ __

DRILLING EQUIPMENT _G_e_o~p_ro_be_8_15_0_L_S_ _ _ _ _ _ _ _ __ GROUNDELEVATION 113.18ft CASING ELEVATION ~N~/A~--

DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

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[ij o.oo Silt (ML), brown 7.5YR 4/4, moist, soft 113.2 Backfill Type: Cement/

Bentonite Grout 0-37 ft bgs 0.5 5.00 Silt (ML), dark yellowish brown 10YR 4/4, soft, moist 108.2 0.0 9.00 Clayey Silt (MH), grayish brown 10 YR 5/2, soft, little clay, saturated 104.2 Silty Sand (SM), dark yellowish brown 10YR 4/4, fine grained, little silt, JX)Orly 102.2 graded, saturated Sand (SW), yellowish brown 10YR 5/6, fine to course grained, well graded, 99.2 saturated Sand (SW), gray 2.5Y 6/1, fine to coarse grained, well graded, saturated 91 .2 Sand (SW), gray 2.5Y 6/1, medium to coarse grained, few gravel, well 89.2 graded, saturated Sand (SW) gray 2.5 Y 6/1, few gravel, well graded, saturated, fine to coarse 86.2 grained Clay (CL), dark gray 10YR 4/1, very stiff, low plasticity, damp 81 .2 (Continued Next Page)

WELL NUMBER L-18 TOTAL DEPTH 37 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

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WELL NUMBER L-19 TOTAL DEPTH 29 FT BGS A:COM PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 08/20/2019 COMPLETED 08/20/2019 SURVEYING BY/DATE AECOM/ 10-02-19 DRILLING CONTRACTOR SAEDACCO EASTING 744295.39 NORTHING 2024208.02 DRILLING EQUIPMENT _G_e_o~p_ro_be_8_15_0_L_S_ _ _ _ _ _ _ _ __ GROUND ELEVATION 114.64 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

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[ij 0.00 Silt (ML), light yellowish brown 10YR 6/4, soft, damp 114.6 Backfill 0.0 Type: Cement/

Bentonite Grout 2.00 Clayey Silt (ML), light yellowish brown 10YR 6/4, medium stiff, low plasticity, 112.6 0-29 ft bgs damp 0.0 0.0 45.3 -:*: (* .:: 8.00 Silty Sand (SM), dark gray 2.5Y 4/1, fine grained, little silt, poorly graded, 106.6

-:* ::: :-: saturated 21.3 \ \ -::

12.00 Clay (CH), very dark grayish brown 10 YR 3/2, soft, high plasticity, wet 102.6 0.0 Clayey Sand (SC), very dark gray 10YR 3/1, fine grained, little clay, poorly 93.6 graded, saturated 0.0 Sand (SP), gray 2.5Y5/1, fine grained, poorly graded, saturated 91 .6 26.00 Clay (CL), very dark gray 10YR 3/1, very stiff, low plasticity, damp 88.6

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WELL NUMBER L-20 TOTAL DEPTH 34 FT BGS A:COM PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 11/23/2020 COMPLETED 11/23/2020 SURVEYING BY/DATE AECOM/ 03-30-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 744448.67 NORTHING 2024757.66 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 123.64 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE N/A WELL DIAGRAM

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[ij 0.00 Sandy Silt (ML), reddish yellow 5YR 6/8 and light brown 7.5YR 6/3, fine to medium grained, moist Backfill Type: Cement/

Bentonite Grout 0-34 ft bgs

-:*: (* .:: 3.00 Silty Sand (SM), very pale brown 10YR 8/3 and strong brown 7.5YR 5/8, fine

-: *::: :-:* to coarse, trace angular to rounded gravel, saturated at 4' 0.0 8.00 Sandy Silt (ML), very pale brown, fine to coarse grained, few clay, few to little white angular quartz 0.0

-:*: (* .:: 12.00 Silty Sand (SM), very pale brown 10YR 8/3 and white 10YR 8/1, fine to

-: *::: :-:* coarse, few angular quartz gravel 0.0

( (- -:: 18.00 Silty Sand (SM), reddish yellow 7.5YR 6/8, fine to coarse, few angular quartz

/ :/ :;: 19 _00 ~g~ra_v_e_l- - - - - - - - - - - - - - - - - - - - - - ~

0.0 :* * * .. Silty Sand (SM) white 10YR 8/1, fine to coarse, few angular quartz gravel

.-*-:,*:*.-: 20.00 Sand (SP), white 10YR 8/1 and reddish yellow 7.5YR 6/8, fine grained, poorly l!!i ,~~. liffiesilt 0.0

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Bottom of borehole at 34 feet. __.

WELL NUMBER L-21 TOTAL DEPTH 33 FT BGS A:COM PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 11/18/2020 COMPLETED 11/18/2020 SURVEYING BY/DATE AECOM/ 03-31-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 746119.31 NORTHING 2024425.94 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 135.29 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD _G_e_o~p_ro_be_ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE N/A WELL DIAGRAM

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[ij 0.00 Sandy Silt (ML), yellowish red 5YR 4/6 and red 10R 4/8 and reddish gray mottled, fine to medium grained Backfill Type: Cement/

Bentonite Grout Sand (SW), yellow 10YR 7/6 and white 5YR 8/1, fine to medium grained, 0-33 ft bgs trace silt, moist 0.0 0.0

!:!:! :1-8-.0-0-,---S-a_n_d_(_S_W_)_.a_s_a_bo-ve_e_x_ce_p_t_s-at-u-ra-ted_a_t_8_'- - - - - - - - - - - t - - - - - - t - -

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0.0 : :.: :.: :.: 14.00 Sand (SW), as above with flowing sands Sand (SW), yellow 10YR 7/6 and light gray 10YR 7/1, fine to coarse grained,

~tr_a_ce_su_ba_n~gu_la_r~g~ra_v_e_l,_fe_w_s_i_lt_ _ _ _ _ _ _ _ _ _ _ _ _ _~

Sand (SW), yellow 10YR 7/6, fine to medium grained, flowing sand 0.0 Sand (SW), brown 10YR 5/3, fine to coarse grained, trace subangular to subrounded gravel, trace silt, coarsening downard, well graded 0.2 Silty Sand (SM), light gray 5YR 7/1, fine grained, poorly graded

WELL NUMBER L-22 TOTAL DEPTH 30.5 FT BGS A:COM PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 11/18/2020 COMPLETED 11/18/2020 SURVEYING BY/DATE AECOM/ 03-31-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 746006.08 NORTHING 2024197.36 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 135.33 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE N/A WELL DIAGRAM

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- (* .:: 0.00 Silty Sand (SM), yellowish red 5YR 6/8, fine to medium grained, dry 135.3

-: *::::-:* Backfill Type: Cement/

Bentonite Grout 0-30.5 ft bgs Silty Sand (SM), as above, moist at 4' 131 .3

/ :::::;: 7.00 Silty Sand (SM), as above, saturated at 7' 128.3

?\\ 8.00 Silty Sand (SM), gray 7.5YR 6/1, light yellowish brown 10YR 6/4, fine to coarse, very strong chemical odor at 9' 127.3 troo Sand (SW), yellow 10YR 8/6, fine to coarse, little silt 124.3 1.3 :t:,- 14

__.0_0_~_~_n_~_J_!_:_!_fl~_e_f_n~_~:_:_~_~_n_1_0Y_R_8_/2_._fin_e_t_o_m_ed_iu_m_._coa_r_se-n-in_g_ _ _ _,_1_2_1.--<3 Sand (SW), very pale brown 10YR 8/2, fine to coarse, trace rounded gravel, 118.3 few silt 0.2 0.3 Jroo Sand (SW), brown 10YR 5/3, medium to coarse, trace subangular to subrounded gravel Sand (SW), white 10YR 8/1, medium to coarse, little subangular to rounded 112.3 109.3 gravel, few silt

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WELL NUMBER L-23 TOTAL DEPTH 40 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 11/19/2020 COMPLETED 11/19/2020 SURVEYING BY/DATE AECOM/ 03-30-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 745968.46 NORTHING 2024027.07 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 139.24 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE N/A WELL DIAGRAM

~

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[ij 0.00 Sandy Silt (ML), red 2.5YR 4/8, fine to medium grained, moist Backfill Type: Cement/

Bentonite Grout 0-40 ft bgs

- ;- .:: 3.00 Silty Sand (SM), reddish yellow 7.5YR 6/8 and red 2.5YR 4/8, fine to

-: *::::-:* medium, moist 0.3 9.7 Sand (SW), reddish yellow 7.5 YR 6/8 and pale brown 2.5 Y 8/13, fine to coarse, well graded, saturated at 9' Sand (SW), very pale brown 10YR 8/4, fine to coarse, few to little silt, trace angular gravel Sand (SW), white 2.5Y 8/1, fine to coarse, few silt Sand (SW), white 2.5Y 8/1, fine to coarse, some silt, trace subrounded gravel 123.2 Sand (SW), reddish yellow 7.5YR 6/8, fine to medium, few silt Sand (SW), very pale brown 10YR 8/3, fine to medium, few silt, few mica Sand (SW), very pale brown 10YR 8/3 to white 10YR 8/1, fine to coarse, few to little silt, trace subrounded to rounded quartz gravel Sand (SW), white 10YR 8/1, medium to coarse, few rounded quartz gravel

WELL NUMBER L-23 TOTAL DEPTH 40 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

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w Cl) 0::: w 35.00 and cobbles 104.2 Clay (CH), gray 7.5YR 5/1, few silt, highly plastic Bottom of borehole at 40 feet.

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WELL NUMBER L-24 TOTAL DEPTH 32 FT BGS A:COM PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 11/20/2020 COMPLETED 11/20/2020 SURVEYING BY/DATE AECOM/ 03-30-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 745988.79 NORTHING 2023772.07 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 137.63 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE N/A WELL DIAGRAM

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-: *::::-:* medium, dry-moist Backfill Type: Cement/

Bentonite Grout 0-32 ft bgs 0.4 rroo Sand (SW) reddish yellow 7.5YR 6/8 and light gray 7.5YR 7/1, fine to medium, few silt, moist J-----------------------------t-----r-Sand (SW), very pale brown 10YR 8/4, fine to coarse, few silt, moist

} } '00 21.3 :*:*:*:t-,9-.5 - - , - - - - - - - - - - - - - - - - - - - - - - - - - - + - - - - i Sand (SW), white 10YR 8/1, fine to medium, very moist to saturated

,* .:: 10.00 Silty Sand (SM), very pale brown 10YR 8/2, fine to medium, coarsening

- ::: :-: downward

( (- .;: 13.00 Silty Sand (SM), very pale brown 10YR 8/2, fine to coarse 22.7 /:/:;:

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Sand (SW), gray 2.5Y 5/1, fine to coarse, few silt, trace angular quartz gravel, subangular to subrounded 6.8 46 *5 *:*:.*:*:.*:*:.*: 24.50 San d (SW) , 1*19ht brownis . h gray 2.5Y 6/2 , f.ine to med.Ium, trace sI*1t, coarsening downward

,.s : t : >-2 .0-0_;_i_~-~-~-Se_fi_~-~~-i~-~-!-~-~-ua-~-e-,-~a-a~-e-ls-il-t,-tr_a_ce-an_g_u_la-r-to_r_o_un_d_ed_q_u-artz_g_r-av_e_l,-+----<

9 0.1 0000000 29.0 Sand (SW), fine to coarse, trace silt, some well rounded quartz gravel Clay (CL), dark greenish gray 5GY 4/2, light gray 5Y 7/2, dark yellowish brown 10YR 4/6, few silt, dense, slight plasticity

WELL NUMBER L-25 TOTAL DEPTH 47 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 11/16/2020 COMPLETED 11/16/2020 SURVEYING BY/DATE AECOM/ 03-31-21 DRILLING CONTRACTOR SAEDACCO EASTING 746263.95 NORTHING 2023148.46 DRILLING EQUIPMENT Geoprobe 8150 LS Sonic GROUND ELEVATION 139.27 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

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[ij 0.7 0.00 Silt (ML), brCNlnish yellCNI 10YR 6/6, medium stiff, damp Backfill Type: Cement/

Silty Clay (CL-ML), reddish yellCNI 7.5YR 6/6, some silt, stiff, damp Bentonite Grout 0-47 ft bgs 0.1 0.1 Clayey Silt (MH), strong brCN1n 7.5YR 5/6, stiff 0.1 Clayey Silt (MH), very pale brCNln 10 YR 7/3, stiff Silty Sand (SM), pale brCN1n 2.5Y 7/3, fine grained, little silt, poorly graded, dry Sand (SP), strong brCN1n 7.5 YR 5/6, fine grained, poorly graded, dry 0.1 / } t--1 .0.,...0_;_:_t~-~-a\_~_W_)_.pa-le_b_r_CN/_n_2_

.5_Y_7_/3_._fi_n_e_to_m_ed-iu_m_g-ra-in_ed_,w_e_l_lg-r-ad_ed_,---+----1

\ \ 15.50 Sand (SW), light gray 2.5Y 7/2, fine to medium grained, well graded, 0.2 saturated

- 17.0 Sand (SW), yellCN/ 10YR 7/6, medium to coarse, trace cobbles, well graded,

// 1750 saturated Sand (SW), yellCN/ 10YR 7/6, fine to coarse grained, well graded, saturated 0.2 0.2 rm 20.00 Sand (SW), yellCN/ 10YR 7/6, fine to medium grained, well graded, saturated Sand (SW), brCN1nish yellCN/ 10YR 6/6, medium to coarse grained, well graded, saturated

roo 0.2 25.50 Silty Clay (CL-ML), brCNlnish yellCNI 10YR 6/6, little silt, medium stiff, moderate plasticity 0.2 27.00 Clayey Silt (MH), light gray 10YR 7/2, little clay, stiff, wet 28.50 Silt (ML), light gray 10YR 7/2, medium stiff, wet 0.2

-:*: (* .:: 31 .50 Silty Sand (SM), light gray 10YR 7/2, fine grained, saturated 0.2 -:* .....::

(Continued Next Page)

WELL NUMBER L-25 TOTAL DEPTH 47 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

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w Cl) 0::: w Sand (SP), light gray 2.5Y 7/1, fine grained, poorly graded, saturated 104.3 0.2 0.2 Sand (SW), light gray 2.5Y 7/2, fine to coarse grained, well graded, saturated 98.8

\ \ 40.50 0.2 Clay (CH), dark gray 10 YR 4/1 , very stiff, moderate plasticity, damp 96.8 Bottom of borehole at 47 feet.

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WELL NUMBER L-26 TOTAL DEPTH 47 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 11/17/2020 COMPLETED 11/17/2020 SURVEYING BY/DATE AECOM/ 03-31-21 DRILLING CONTRACTOR SAEDACCO EASTING 746119.68 NORTHING 2023022.52 DRILLING EQUIPMENT Geoprobe 8150 LS Sonic GROUND ELEVATION 137.61 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

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[ij 0.00 Silt (ML), brownish yellow 10YR 6/6, soft, damp Backfill Type: Cement/

1.50 Silt (ML), strong brown 7.5 YR 5/6, medium stiff, damp Bentonite Grout 0-47 ft bgs

-::.. .... ... 3.00 Silty Sand (SM), very pale brown 10YR 7/4, fine grained, some silt, damp Silty Sand (SM), dark yellowish brown 10YR 3/6, fine grained, some silt, 3.2 damp Silt (ML), very pale brown 10YR 7/4, medium stiff, damp

,-::- .. 7 50 Sand (SP), brownish yellow 10YR 6/8, medium grained, poorly graded, moist 0.8 rn- .

- (* .:: 10.50 Silty Sand (SM), brownish yellow 10YR 4/6, medium grained, little silt, moist

( (- .;: 12.00 Silty Sand (SM), brownish yellow 10YR 4/6, medium grained, little silt, wet 0.7 0.8 rm 15.00 Sand (SW), yellow 10YR 7/6, medium to coarse grained, well graded, saturated Sand (SW), yellow 10YR 7/6, fine to coarse grained, well graded, saturated 0.4 0.3 0.3 0.8 f/ 27.00 Sand (SW), dark yellowish brown 10YR 4/4, fine to coarse grained, well graded, saturated 29.00 Clay (CH), greenish gray GLEY1 5/1, stiff, high plasticity, moist 0.3 Sand (SP), light gray 2.5Y 7/2, fine grained, poorly graded, saturated (Continued Next Page)

WELL NUMBER L-26 TOTAL DEPTH 47 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

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MATERIAL DESCRIPTION

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w Cl) 0::: w Clay (CH), dark gray 1OYR 4/1, with interlayered silt, very stiff, moderate 94.6 plasticity Bottom of borehole at 47 feet.

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WELL NUMBER L-27 TOTAL DEPTH 47 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 11/17/2020 COMPLETED 11/17/2020 SURVEYING BY/DATE AECOM/ 03-31-21 DRILLING CONTRACTOR SAEDACCO EASTING 745936.45 NORTHING 2022935.33 DRILLING EQUIPMENT Geoprobe 8150 LS Sonic GROUND ELEVATION 134.8 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

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[ij 0.00 Silt (ML), yellowish brown 10YR 5/4, soft, damp Backfill Type: Cement/

Bentonite Grout 2.00 Silt (ML), yellowish brown 10YR 5/4, trace clay, soft, damp 0-47 ft bgs 4.00 Clayey Silt (MH), strong brown 7.5YR 5/6 to yellowish brown 10YR 5/4, little clay, damp Silty Clay (CL-ML), strong brown 7.5YR 5/6, some silt, stiff, moderate 0.5 plasticity, damp Silty Sand (SM), light gray 2.5Y 7/1, fine grained, damp Silt (ML), light gray 2.5Y 7/2, stiff, damp 0.6 10.00 Clayey Silt (MH), light gray 2.5Y 7/2, little clay, very stiff 4.9

...._.,.:*.-: 14.00 Sand (SP), strong brown 7.5Y 4/6, medium grained, poorly graded, saturated Silty Sand (SM), brown 10YR 5/3, fine grained, some silt, saturated

17.50 Sand (SW), brown 10YR 5/3, fine to coarse grained, well graded, saturated 0.9

- ;- .:: 19.00 Silty Sand (SM), light olive brown 2.5Y 5/3, fine to medium grained, some silt,

-: *::::-:* saturated Sand (SW), yellowish red 5YR 5/6 to yellowish brown 10YR 5/4, medium to coarse grained, well graded, saturated Clay (CH), light yellowish brown 10YR 6/4, soft, high plasticity, moist to wet Sand (SP), pale brown 2.5Y 8/2, fine grained, poorly graded, saturated Sand (SW), pale brown 2.5Y 8/2, fine to medium grained, well graded, saturated (Continued Next Page)

WELL NUMBER L-27 TOTAL DEPTH 47 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

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MATERIAL DESCRIPTION

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3.1 :_:.:_:.:_:.:. 41 .00 Sand (SW), pale brown 2.5 7/4, medium to coarse grained, few gravel, well graded, saturated 42.50 Gravel and Cobbles (GW), light brownish gray 2.5Y 6/2, few coarse sand, 43 _50 ..__fe_w_cl_a=--'y,_w_e_ll_,,g'-ra_d_ed--',_s_a_tu_ra_ted Clay (CH), gray 5Y 6/1, very stiff, high plasticity, damp Bottom of borehole at 47 feet.

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WELL NUMBER L-28 TOTAL DEPTH 47 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 11/18/2020 COMPLETED 11/18/2020 SURVEYING BY/DATE AECOM/ 03-31-21 DRILLING CONTRACTOR SAEDACCO EASTING 745759.21 NORTHING 2022850.59 DRILLING EQUIPMENT Geoprobe 8150 LS Sonic GROUND ELEVATION 136.55 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

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[ij 0.00 Silt (ML), yellowish brown 10YR 5/6, soft, damp Backfill Type: Cement/

Bentonite Grout 0-47 ft bgs 0.5 3.00 Sandy Silt (ML), light gray 10YR 7/2, little fine sand, soft, damp 0.7

- (* .:: 7.50 Silty Sand (SM), brownish yellow 10YR 6/8, fine grained, little silt, moist 0.1 -:* ::::-:*

0.1 -:* ::::-:*

0.1 ....:,*:.-: 13.00 Sand (SP), pale brown 2.5Y 7/3, fine grained, few silt, poorly graded, saturated 01 1(;

Sand (SW), light gray 2.5Y 7/2, medium to coarse grained, well graded, saturated Clay (CH), brownish yellow 10YR 6/8, medium stiff, high plasticity, wet Sand (SP), light gray 2.5Y 7/1, fine grained, poorly graded, saturated Silty Sand (SM), very pale brown 10YR 7/4, fine grained, some silt, saturated Sand (SP), light gray 2.5Y 7/1, medium grained, poorly graded, saturated (Continued Next Page)

WELL NUMBER L-28 TOTAL DEPTH 47 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

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w Cl) 0::: w 0.7 0.5 rroo Sand (SW), yellow 10YR 7/8, medium to coarse grained, well graded, saturated 99.6 Clay (CH), dark gray 2.5Y 4/1, very stiff, moderate plasticity, damp 96.6 Bottom of borehole at 47 feet.

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WELL NUMBER L-29 TOTAL DEPTH 37 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 11/23/2020 COMPLETED 11/23/2020 SURVEYING BY/DATE AECOM/ 04-01-21 DRILLING CONTRACTOR SAEDACCO EASTING 744678.92 NORTHING 2022143.04 DRILLING EQUIPMENT Geoprobe 8150 LS Sonic GROUND ELEVATION 115.22 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

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[ij o.oo Silt (ML), yellowish brown 10YR 5/4, soft, damp to moist 115.2 Backfill Type: Cement/

Bentonite Grout 0.1 0-37 ft bgs 3.00 Silt (ML), dark yellowish brown 10YR 4/4, soft, moist 112.2 0.3 0.9 7.00 Silt (ML), dark yellowish brown 10YR 4/4, soft, wet 108.2 0.0

...._.,.:*.-: 10.00 Sand (SP), gray 10YR 6/1, fine grained, few silt, saturated 105.2

lilt 0.2 1 . - + - . - . . . . 1 - - - - - , - - - - - - - - - - - - - - - - - - - - - - - - - - - + - - - i O.O IIIIII 1-1.. ,. 5.-50.,....--S-a_n_d_(S_W_).-b-row_n_1-0Y-R-4/_3_,f-in_e_t_o_m_ed_i-um-g-ra-in_ed_,w_e_ll_g-ra_d_ed_._s_at-u-ra-ted--+-9-9.--1<7 1

o., :] : 1950 =:.'."~(~~/,1.~YR 611. moj"m """'" ~ """'* ,.,. 95.7 22.50 Silt (ML), dark gray 10YR 4/1, stiff, few clay, moist 92.7 0.3

..*..-,-:*.-: 24.00 Sand (SP), gray 10YR 6/1, fine grained, poorly graded, saturated 91 .2 03 Ii*

. :-:"-:-.'.:.1--2 .0-0_S_a_n_d-(S_P_)_,g-r-ay_10_Y_R_6_/_1,-f-in-e-gr-a-in_ed_,-tr_a_ce_co_b_bl-es_a_t_3_0_ .5_,-poo-rly-gr-a-ded-,-+-8 .2-<

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"7:r.3::::0-= .5-=-o.,--C::-l-ay-(:-::C::-H::-),....,.b-:-la-c:-k-:-10:::Y-::R::-2::--/:--:-1,-v-e_ry_s-::tiff=,-:h-:-ig....,.h-p-:-la-s.,..,.tic....,.ity-,-,-m-o....,.is-:t--------t-:8-:-4-::-i

.7 33.00 Clay (CH), dark gray 10YR 4/1, very stiff, high plasticity, moist 82.2 (Continued Next Page)

WELL NUMBER L-29 TOTAL DEPTH 37 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

~

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WELL NUMBER L-30 TOTAL DEPTH 42 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 11/23/2020 COMPLETED 11/23/2020 SURVEYING BY/DATE AECOM/ 04-01-21 DRILLING CONTRACTOR SAEDACCO EASTING 744504.82 NORTHING 2022330.93 DRILLING EQUIPMENT Geoprobe 8150 LS Sonic GROUND ELEVATION 114.33 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM 0~ cii w (.) E

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[ij 0.00 Silt (ML), yellCNlish brCNln 10YR 5/6, medium stiff, damp Backfill Type: Cement/

Bentonite Grout 0-42 ft bgs 3.00 Silt (ML), brCN/n 7.5YR 5/4, soft, few clay, moist 0.1 0.1 7.00 Silt (ML) brCN/n 7.5YR 5/4, soft, few clay, wet

,* .:: 7.50 Silty Sand (SM), yellCN1ish brCN/n 10YR 5/4, fine grained, some silt, wet 0.1 -:* ::::-:*

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9.50 Silty Sand (SM), yellCN1ish brCN/n 10YR 5/4, fine grained, some silt, saturated

i!i!i! !1-1-2_

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2.0

r: 1700 ~:=), -.1sh ~~ 10YR &6, floe I D ~ ~aoed, well g-,

0.8 Sand (SW), yellCN1ish brCN/n 10YR 5/4, fine to coarse grained, few gravel, saturated

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Sand (SW), light gray 2.5Y 7/2, medium to coarse grained, few gravel, well 1

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(Continued Next Page)

WELL NUMBER L-30 TOTAL DEPTH 42 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

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w Cl) 0::: w 35.00 Clay (CH), dark gray 1OYR 4/1, stiff, high plasticity, damp 79.3 37.00 Clay (CH), black 1OYR 2/1, stiff, few silt, high plasticity 77.3 39.00 Clay (CH), dark gray 1OYR 4/1, stiff, few silt, high plasticity 75.3 Bottom of borehole at 42 feet.

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WELL NUMBER L-31 TOTAL DEPTH 42 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 11/25/2020 COMPLETED 11/25/2020 SURVEYING BY/DATE AECOM/ 04-01-21 DRILLING CONTRACTOR SAEDACCO EASTING 744413.33 NORTHING 2021933.16 DRILLING EQUIPMENT Geoprobe 8150 LS Sonic GROUND ELEVATION 113.2 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

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[ij 0.00 Silt (ML), yellowish brown 10YR 5/6, medium stiff, damp Backfill Type: Cement/

Bentonite Grout 0-42 ft bgs 0.1 5.00 Silt (ML), strong brown 7.5YR 5/6, soft, damp 0.1 7.00 Silt (ML), dark yellowish brown 10YR 4/4, soft, wet, few clay 0.1 Silty Sand (SM), dark yellowish brown 10 YR 4/6, fine grained, little silt, saturated 0.2 -:* .....::

0.2 \. .\. \ : . 15.00 Silty Sand (SM), gray 10YR 6/1, fine grained, little silt, saturated 0.2 \ \ *::

0.2 ..*..-,-:*.-: 17.00 Sand (SP), gray 10YR 6/1, fine grained, few silt, poorly graded, saturated 02 l!li 0.9 1 . - - + - . - . . . . t - , - , - - - - , - - - - - - - - - - - - - - - - - - - - - - - - - - - + - - - i <

22.50 Snad (SW), gray 10YR 5/1, fine to medium grained, well graded, saturated 0.4

: 24.00 Sand (SW), gray 10YR 5/1, fine to medium grained, few cobbles (24'-24.5'),

well graded, saturated Sand (SW), gray 10YR 5/1, medium to coarse grained, few gravel, few cobbles, saturated "s: ~: !!!!!roo 1-,-,---,----------------------------+---I<

Sand (SW), gray 10YR 6/1, medium to coarse grained, well graded, saturated 84.7

I, ;: !::::r~

~:: t m+-3-2.-00--s-a_n_d_(S_W_),-g-ra_y_1-0Y-R-6/_1_,f-in-e-to-coa-rs_e_g-ra-in_ed_,w_e_ll_g-ra_d_ed_,-s-at-u-ra-ted---+-----i

§<.......,=-_.__ _...,___....___..............__ 34.00

_ _Clay

__ (CH),

__ gray2.5

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_very__ stiff,

_high

__ plasticity,

___ moist (Continued Next Page)

WELL NUMBER L-31 TOTAL DEPTH 42 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

w

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w Cl) 0::: w 36.00 Clay (CH), black 10YR 2/1, very stiff, high plasticity, damp 77.2 37.00 Clay (CH), dark gray 10YR 4/1, very stiff, high plasticity, damp 76.2 Clay (CH), gray 10YR 5/1, very stiff, high plasticity, damp 72.7 Bottom of borehole at 42 feet.

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WELL NUMBER L-32 TOTAL DEPTH 57 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 11/19/2020 COMPLETED 11/19/2020 SURVEYING BY/DATE AECOM/ 04-01-21 DRILLING CONTRACTOR SAEDACCO EASTING 744208.05 NORTHING 2022151 .73 DRILLING EQUIPMENT Geoprobe 8150 LS Sonic GROUND ELEVATION 112.86 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

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[ij o.oo Silt (ML), dark yellowish brown 10YR 4/4, soft, moist, 112.9 Backfill Type: Cement/

Bentonite Grout 0-57 ft bgs 0.2

.-::- .. 6 00 Sand (SP), brown 10YR 5/3, fine grained, few silt, saturated 106.9 0.0 0.7 rn- ,,. Sand (SP), brownish yellow 10YR 6/6, medium grained, poorly graded, saturated 105.4 0.4 i;!(

.:-:"-:-_'.:.1-1 .0-0--S-an_d_(_S_P_).-pa-le_o_liv_e_5_Y_6/_4_,f-in_e_g-ra-i-ned-,-poo-r-ly-g-ra_d_ed_,_s_a-tu-ra_t_ed_ _ _ _+-1-0-0-<

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Sand (SW), olive yellow 5Y 6/6, fine to medium grained, well graded, 97.9 saturated Sand (SP), pale brown 2.5Y 8/2, medium grained, poorly graded, saturated 94.9 0.7 / } 20.00 Sand (SW), pale brown 2.5Y 7/3, medium to coarse grained, few fine sand, 92.9 few gravel, well graded, saturated Sand (SW), gray 2.5Y 6/1, medium to very coarse grained, few gravel and 91 .4 cobbles, well graded, saturated 0.7 Sand (SW), light gray 2.5Y 7/1, medium to coarse grained, well graded, 85.9

!l!l!f saturated 0.1 00 31 .00 Gravel and Cobbles (GW), light gray 2.5Y 7/1, few coarse sand, well graded, 81 .9 saturated (Continued Next Page)

WELL NUMBER L-32 TOTAL DEPTH 57 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

w

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MATERIAL DESCRIPTION

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w Cl) 0::: w 0.3 1 , r - , r - . ' . 1 - c - , , . . . , , . , - - - - - - - - - - - - - - - - - - - - - - - - - - - t - - - { , '

35.50 Clay (CH), dark gray 10YR 4/1, stiff, few silt, high plasticity 77.4 0.0 38.00 Silt and Clay (ML-CH), gray 10YR 5/1 to dark gray 10YR 4/1, soft, 1-2 mm 74.9 layers of silt and clay, clays are high plastcity, moist 40.50 Silt (ML), gray 2.5Y 6/1, soft, with occassional interlayering of 1-2 mm clays 72.4 0.0 0.0 Clay (CH), very dark gray 10YR 3/1, stiff, interlayered with silt (<1mm) within 67.9 clay matrix, damp, high plasticity 0.0 0.0 Silt and Clay (ML-CH) dark gray 7.5YR 4/1, stiff to very stiff, silt and clay 63.4 layers 1mm or less, moderate to high plasticity, damp 0.0 0.0 0.0

~i--;:a.:........&...----'----'----'-..............- - - - - - - - - - - - - - - - - - - - - - - - - - - - - ' - - - - - ' - " - " - " . . . , _ , . . . . . . . _ __ _ _ _ __

Bottom of borehole at 57 feet.

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WELL NUMBER L-33 TOTAL DEPTH 77 FT BGS A:COM PAGE 1 OF 3 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 11/19/2020 COMPLETED 11/20/2020 SURVEYING BY/DATE AECOM/ 04-01-21 DRILLING CONTRACTOR SAEDACCO EASTING 744071 .73 NORTHING 2022375.04 DRILLING EQUIPMENT Geoprobe 8150 LS Sonic GROUND ELEVATION 113.43 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

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[ij o.oo Silt (ML), brown 7.5YR 4/4, soft, moist Backfill Type: Cement/

Bentonite Grout 0-77 ft bgs 0.1 3.50 Silt (ML), brown 7.5YR 4/4, soft, wet 0.2 7.00 Silt (ML), brown 7.5YR 4/4, soft, moist 0.2

- ;- .:: 9.00 Silty Sand (SM), brown 7.5YR 5/4, fine grained, little silt, saturated Sand (SP) yellowish brown 10YR 5/4, fine grained, poorly graded, saturated Sand (SW), light yellowish brown 10YR 6/4, medium to coarse grained, few cobbles, well graded, saturated Sand (SW), light yellowish brown 10YR 6/4, medium to coarse grained, well graded, saturated Sand (SW), gray 10YR 5/1, medium to coarse grained, well graded, saturated Sand (SW), light gray 10YR 7/1, medium to coarse grained, well graded, saturated Sand (SW), light gray 10YR 7/1, medium to coarse grained, few cobbles, well graded, saturated Clay (CH), dark gray 10YR 4/1, stiff, high plasticity, moist Silt (ML), light gray 2.5Y 7/1, soft, occassional clay lenses, saturated (Continued Next Page)

WELL NUMBER L-33 TOTAL DEPTH 77 FT BGS A:COM PAGE 2 OF 3 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

w

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w Cl) 0::: w 0.1 37.00 Silt (ML), light gray 2.5Y 7/1, soft, saturated 0.2 Q.

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~I 50.00 Silt (ML), as above with dark organic material at 50'

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Cl) w Silt (ML), gray 10 YR 5/1, soft, saturated

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WELL NUMBER L-33 TOTAL DEPTH 77 FT BGS A:COM PAGE 3 OF 3 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

~

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WELL NUMBER L-34 TOTAL DEPTH 87 FT BGS A:COM PAGE 1 OF 3 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 11/20/2020 COMPLETED 11/23/2020 SURVEYING BY/DATE AECOM/ 04-01-21 DRILLING CONTRACTOR SAEDACCO EASTING 744116.13 NORTHING 2022555.13 DRILLING EQUIPMENT Geoprobe 8150 LS Sonic GROUNDELEVATION 113.15ft CASING ELEVATION ~N~/A~--

DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

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[ij o.oo Silt (ML), brown 7.5YR 4/4, soft, moist Backfill Type: Cement/

Bentonite Grout 0-87 ft bgs Q.

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0 5.00 Clayey Silt (MH), brown 7.5YR 5/4, soft, little clay, wet

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cobbles, well graded, saturated 0

z 1.1 ...

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Cl)

0.1 Silt (ML), as above with organic layer 33.0'-33.5',

0 33.50 Silt (ML), light gray 2.5Y 7/1, soft, wet to saturated u

w (Continued Next Page)

WELL NUMBER L-34 TOTAL DEPTH 87 FT BGS A:COM PAGE 2 OF 3 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E

w

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a. w MATERIAL DESCRIPTION C:

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w Cl) 0::: w 0.1 37.00 Silt (ML), light gray 2.5Y 7/2, soft, saturated 0.8 0.3 Silt (ML), as above with dark organic layer at 41' Silt (ML), gray 2.5Y 7/2, soft, saturated 0.2 0.0 47.00 Silt (ML), gray 2.5Y 6/1, soft, occaisional darker lenses, saturated 0.0 0.0 0.0 57.00 Silt (ML), gray 10YR 6/1, soft, wet 0.0 0.0 0.0 Clay (CH), very dark gray 2.5Y 7/1, medium stiff, moderate plasticity, damp Silt (ML), gray 10YR 6/1, soft, wet 0.1 Clay (CH), very dark gray 2.5Y 7/1, medium stiff, moderate plasticity, damp Sandy Silt (ML), gray 10YR 5/1, little fine sand, soft, saturated 0.0

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z -:: ,* .:: 69.00 Silty Sand (SM), gray 10YR 5/1, fine to medium grained, some silt, well

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WELL NUMBER L-34 TOTAL DEPTH 87 FT BGS A:COM PAGE 3 OF 3 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

~

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0 0

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0 0

0 Clay (CH), very dark gray 10 YR 3/1 , very stiff, moderate plasticity, damp Sand (SW), light brownish gray 10 YR 6/2, medium to coarse grained, well graded, saturated Clay (CH), very dark gray 10YR 3/1 , very stiff, moderate plasticity, damp Clay (CH), gray 10YR 6/1, very stiff, moderate plasticity, damp Bottom of borehole at 87 feet.

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WELL NUMBER L-35 TOTAL DEPTH 77 FT BGS A:COM PAGE 1 OF 3 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 11/24/2020 COMPLETED 11/24/2020 SURVEYING BY/DATE AECOM/ 04-01-21 DRILLING CONTRACTOR SAEDACCO EASTING 744134.55 NORTHING 2022739.57 DRILLING EQUIPMENT Geoprobe 8150 LS Sonic GROUND ELEVATION 112.87 ft CASING ELEVATION ~N~/A~--

DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __

LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM 0~ cii w (.) E

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a.¢:: :E > E:: a.o MATERIAL DESCRIPTION C:

w- 0 0 0

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[ij o.oo Silt (ML), strong brCN1n 7.5YR 4/6, soft, moist Backfill Type: Cement/

Bentonite Grout 0-77 ft bgs 0.2 3.00 Silt (ML), yellCNlish brCNln 10YR 5/6, soft, moist 5.00 Silt (ML), dark yellCN1ish brCN/n 10YR 4/6, soft, few clay, wet 0.2 0.5 1.2 ...._.,.:*.-: 11 .00 Sand (SP), yellCN1ish brCN/n 10YR 5/8, fine grained, poorly graded, saturated 0.1 {!(?

- (* .:: 13.50 Silty Sand (SM), yellCN1ish brCN/n 10YR 5/6, fine grained, little silt, saturated 0.1 -:* ::::-:*

Sand (SP), brCN1nish yellCNI 10YR 6/6, fine grained, poorly graded, saturated Sand (SW), yellCN1ish brCN/n 10YR 5/6, fine to medium grained, well graded, saturated

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2. 1 rm 1-----------------------------t-----r-22.00 Sand (SW), pale brCN/n 10 YR 6/3, medium to coarse grained, well graded, saturated 1-----------------------------+----<

1.3 :,::;*::;*::;*~2 ~ .o.,...o_s_a_n_d_(_s_w_>_.pa_1e_b_r_CN1_n_1_ov_R_6_/3_,_m_ed_i_u_m_t_o_coa_r_se_g_r_a_in_ed_._fe_w_gr_a_ve_i_.w_e_ll-+----i<

graded, saturated

0. 7 Sand (SW), light gray 10YR 7/2, fine to coarse grained, few gravel, few 1.2 cobbles, well graded, saturated

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WELL NUMBER L-35 TOTAL DEPTH 77 FT BGS A:COM PAGE 2 OF 3 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E w

      ...J   ~                                                                                                $

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w Cl) 0::: w Sand and Cobbles (SW), light brownish gray 10YR 6/2, fine grained to cobbles, well graded, saturated 0.1 Clayey Silt (MH), gray 10YR 6/1, soft, little clay, wet 0.0 39.00 Silt (ML), gray 10YR 6/1, soft, few clay, wet 0.0 0.0 0.1 45.00 Silt (ML), gray 10YR 6/1, soft, saturated 0.0 48.00 Silt and Clay (ML-CH), gray 10 YR 6/1 (silt), dark gray 10 YR 4/1 (clay), soft, high plasticity clay, moist Clay (CH), dark gray 10 YR 4/1, soft, high plasticity, moist 0.0 50.00 Silt (ML), gray 10YR 6/1, soft, saturated Clay (CH), dark gray 10YR 4/1, soft, high plasticity, moist 51 .50 Silt (ML), light gray 10YR 7/1 soft, saturated 53.80 Silt (ML), light gray 10YR 7/1 soft, saturated Clay (CH), dark gray 10YR 4/1, soft, high plasticity, moist 55.30 Silt (ML), light gray 10YR 7/1 soft, saturated 0.0 58.50 Clay and Silt (CH-ML), dark gray 10YR 4/1 (clay) to gray 10YR 5/1 (silt), soft, 0.0 high plasticity clay, moist Clay (CH), dark gray 10YR 4/1, medium stiff, high plasticity, moist Clay (CH), dark gray 10YR 4/1, stiff, high plasticity, damp Clay (CH), dark gray 10YR 4/1, very stiff, high plasticity, damp Clayey Sand (SC), dark gray 10YR 4/1, fine to medium grained, well graded, little clay, saturated Clay (CL), gray 10YR 6/1, very stiff (Continued Next Page)

WELL NUMBER L-35 TOTAL DEPTH 77 FT BGS A:COM PAGE 3 OF 3 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

0 cii

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WELL NUMBER L-36 TOTAL DEPTH 47 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 11/24/2020 COMPLETED 11/24/2020 SURVEYING BY/DATE AECOM/ 04-01-21 DRILLING CONTRACTOR SAEDACCO EASTING 744045.22 NORTHING 2023174.48 DRILLING EQUIPMENT Geoprobe 8150 LS Sonic GROUND ELEVATION 112.77 ft CASING ELEVATION ~N~/A~-- DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

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a.¢:: :E > E:: a.o MATERIAL DESCRIPTION C: w- 0 0 0

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w a:: i:[ C) I [ij o.oo Silt (ML), strong brown 7.5YR 4/6, soft, moist 112.8 Backfill Type: Cement/ Bentonite Grout 0-47 ft bgs 0.1 5.00 Clayey Silt (MH), brown 7.5YR 5/4, medium stiff, little clay, damp 107.8 0.3 0.0 9.00 Silt (ML), yellowish brown 10YR 5/4, soft, few clay, wet 103.8 0.1 2.6 Silty Sand (SM), brown 10YR 5/3, fine grained, some silt, saturated 98.3

                        ...._.,.:*.-: 16.00  Sand (SP), light gray 10YR 7/2, fine grained, poorly graded, saturated            96.8 0.3 *:.-:.:-* .

Sand (SW), light brownish gray 10YR 6/2, fine to coarse grained, trace 95.8 cobbles, well graded, saturated

Jiif 00 0.3 rm 1-----------------------------+----I' 22.00 Sand and Gravel (SW), gray 10YR 5/1, fine grained to gravel, well graded, saturated

                                     ! - - -Sand
                                              - -(SW),
                                                    - - -light
                                                             --   -------------------+---<

90.8 gray 2.5Y 7/2, fine to coarse grained, well graded, saturated 88.8 (Continued Next Page)

WELL NUMBER L-36 TOTAL DEPTH 47 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E w

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w Cl) 0::: w 0 0 0 0 0 0 0 0 0 0 0 0 Clay (CH), very dark gray 1OYR 3/1, very stiff, moderate plasticity, damp 71 .8 Clay (CH), dark gray 1OYR 4/1 , very stiff, high plasticity, damp 68.8 Bottom of borehole at 47 feet.

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WELL NUMBER L-37 TOTAL DEPTH 30 FT BGS A:COM PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 12/08/2020 COMPLETED 12/08/2020 SURVEYING BY/DATE AECOM/ 03-30-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_hn_ig~u_e_s_ _ _ _ _ _ _ __ EASTING 744236.16 NORTHING 2023212.83 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 114.21 ft CASING ELEVATION ~N~/A~-- DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE N/A WELL DIAGRAM

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w a:: i:[ C) I [ij Clayey Sand (SC), Fill, yellowish red 5YR 4/6, fine to medium grained, some 114.2 clay, well graded, moist Backfill Type: Cement/ Bentonite Grout 0-30 ft bgs 6.50 Clayey Silt (ML), gray 2.5Y 5/1 to light olive brown 2.5Y 5/3, soft, little clay, 107.7 moist 12.50 Silt (ML), dark gray 10YR 4/1, soft, wet 101 .7 Sand (SW), gray 10YR 5/1, fine to medium grained, well graded, saturated 98.2 24.00 Silt (ML), dark gray 10YR 4/1, soft, wet 90.2 Sand (SW), gray 10YR 6/1, fine to coarse grained, few gravel, few cobbles, 89.2 well graded, saturated

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WELL NUMBER L-38 TOTAL DEPTH 30.5 FT BGS A:COM PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 12/08/2020 COMPLETED 12/08/2020 SURVEYING BY/DATE AECOM/ 03-30-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 744431 .55 NORTHING 2023371 .32 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUNDELEVATION 115.68ft CASING ELEVATION ~N~/A~-- DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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w a:: i:[ C) I [ij Clayey Sand (SC), yelowish red 5YR 4/6, fine to medium grained, well graded, moist Backfill Type: Cement/ Bentonite Grout 0.2 0-20.5 ft bgs 0.1 Clayey Sand (SC), yelowish red 5YR 4/6, fine to coarse grained, well graded, moist to saturated Clayey Sand (SC), dark grayish brown 2.5Y 4/2, fine to medium grained, well graded, saturated Sand (SW), grayish brown 2.5Y 5/2, fine to medium grained, well graded, saturated Well Seal Clay (CH), dark gray 5Y 4/1 , soft, highly plastic, saturated Type: Bentonite Sand (SW), dark gray 5Y 4/1 , fine to coarse grained, well graded, saturated 20.5-22.5 ft bgs oooo t - , - - - , - - - - - - - - - - - - - - - - - - - - - - - - - - - t - - - - 1 Sand (SW), dark gray 5Y 4/1 , fine to coarse grained, few gravel and cobbles, 88.2

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WELL NUMBER L-39 TOTAL DEPTH 38 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 11/16/2020 COMPLETED 11/16/2020 SURVEYING BY/DATE AECOM/ 03-31-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 744662.98 NORTHING 2024277.39 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 136.35 ft CASING ELEVATION ~N~/A~-- DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE N/A WELL DIAGRAM cii w E

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6 0 0 (.) w a:: I [ij Gravel (GW) Backfill 0.50 Sandy Silt (ML), reddish yellow 7.5YR 6/8 and light gray 7.5YR 7/1, fine to Type: Cement/ medium grained, few clay, dry Bentonite Grout 0-38 ft bgs 0.4

                        *:*: ;- .:: 7.00    Silty Sand (SM), yellow 10YR 7/6 and light gray 10YR 7/1, fine to medium
                       ..-: *::::-:*        grained, dry to moist 0.1               9.00   Sandy Silt (ML), reddish yellow 7.5YR 6/8 and light gray 7.5YR 7/1, fine to medium grained sand, saturated rroo                Sand (SW), yellow 10YR 7/6 and light gray 10YR 7/1, fine to medium grained, little silt, saturated Sand (SW), very pale brown 10YR 8/3, fine to coarse grained, few silt, trace gravel, well graded 24.00  Silty Clay (CL-ML), brown 10YR 5/3 and reddish yellow 7.5YR 6/8, few fine sand Sand (SP), pale brown 2.5Y 8/4 and reddish yellow 7.5YR 6/8, fine grained (sugar sand), trace silt Sand (SW), pale brown 2.5Y 8/3, fine to medium, trace silt Sand (SW), white 7.5YR 8/1, fine to coarse, trace subroundeed to rounded gravel, few silt (Continued Next Page)

WELL NUMBER L-39 TOTAL DEPTH 38 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

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_))_ Silty Clay (CL-ML), dark reddish gray 2.5YR 4/1 and reddish yellow 7.5YR

                              ~    ~     6/8, dry, Black Mingo confining clay 38 Bottom of borehole at 38 feet.

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WELL NUMBER L-40 TOTAL DEPTH 39 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 11/17/2020 COMPLETED 11/17/2020 SURVEYING BY/DATE AECOM/ 03-31-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 744819.62 NORTHING 2024531 .98 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 136.32 ft CASING ELEVATION ~N~/A~-- DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE N/A WELL DIAGRAM

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w a:: i:[ C) I [ij 0.00 Sandy Silt (ML), yellowish red 5YR 4/6, fine to medium grained, dry Backfill Type: Cement/ Bentonite Grout 2.00 Sandy Silt (ML), yellowish red 5YR 4/6, red 10R 4/8, and reddish gray 2.5YR 0-39 ft bgs 6/1, mottled, fine to medium grained sand, dry 0.3

                         *:*: ;- .:: 7.00         Silty Sand (SM), reddish yellow 7.5YR 6/8 and light gray 5YR 7/1, fine to medium grained, moist 3.0 -:* ::::-:*

( (- .;: 10.00 Silty Sand (SM), light gray 7.5YR 7/1 and white 7.5YR 9.5/1, fine to coarse

                          -: *::: :-:*            sand, trace angular gravel, well graded Silty Sand (SM), light gray 7.5YR 7/1 and white 7.5YR 9.5/1, fine to coarse sand, trace angular gravel, well graded, saturated at 13' 0.2                            Sand (SW), very pale brown 10YR 8/3, fine to coarse, little silt, well graded
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Silt (ML), grayish green GLEY1 6/1, few clay, few fine grained sand 3.4 Sand (SP), reddish yellow 7.5YR 6/8 and light gray 5YR 7/1, fine grained, sugar sand, little silt Clay (CH), reddish yellow 7.5YR 6/8 and light gray 7.5YR 7/1, fat clay, trace fine to coarse sand and silt Sand (SW), light gray 7.5R 7/1, fine to coarse, few silt, trace subangular to subrounded gravel, well graded, transition to very pale brown 10YR 8/3 @ 29'

WELL NUMBER L-40 TOTAL DEPTH 39 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E w

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w Cl) 0::: w gravel, trace silt 37.50 Clay (CL) gray 2.5YR 6/1 and reddish yellow 7.5YR 6/8, few silt, hard, dense 98.8 Bottom of borehole at 39 feet. i( (9

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WELL NUMBER L-41 TOTAL DEPTH 39 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 12/07/2020 COMPLETED 12/07/2020 SURVEYING BY/DATE AECOM/ 03-31-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_hn_ig~u_e_s_ _ _ _ _ _ _ __ EASTING 744970.37 NORTHING 2024665.59 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 136.14 ft CASING ELEVATION ~N~/A~-- DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE N/A WELL DIAGRAM

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w a:: i:[ C) I [ij Gravel (GW) Backfill Sandy Clay (CL), gray 10YR 6/1, fine grained Type: Cement/ Bentonite Grout 0-39 ft bgs Clayey Sand (SC), gray 10YR 6/1, fine to coarse, well graded Silty Clay (CH), brownish yellow 10YR 6/8 and light gray 2.5YR 7/1, stiff, moderate to low plasticity Silty Sand (SM), white 2.5Y 8/1 and gray 2.5Y 6/1, fine grained o.o .:._-,-:*.-: 27.00 Sand (SP), white 2.5Y 8/1, fine grained, coarsening downard (?{;

                         *:.-:.:-*. 28.50 Sand (SP), white 2.5Y 8/1, fine to medium grained 0.0 1.--+-.-....t-,-,----,---------------------------+----t--

.:.:_:.:_:.:_ 29.50 Sand (SW), reddish yellow 7.5YR 7/8, fine to coarse, little subangular to subrounded gravel, few silt, well graded Silty Sand (SM) white 7.5 YR 8/1, fine to coarse, some angular to rounded gravel (Continued Next Page)

WELL NUMBER L-41 TOTAL DEPTH 39 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E w

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w Cl) 0::: w 36.00 Silty Clay (CL), reddish gray 2.5YR 5/1 and reddish yellow 7.5YR 6/8, stiff, 100.1 dry 0.0 Bottom of borehole at 39 feet. i( (9

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WELL NUMBER L-42 TOTAL DEPTH 40 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 11/24/2020 COMPLETED 11/24/2020 SURVEYING BY/DATE AECOM/ 03-31-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 744002.39 NORTHING ~2~0=24~0~4~4._7_ _ _ __ DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUNDELEVATION 114.7ft CASING ELEVATION ~N~/A~-- DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE N/A WELL DIAGRAM

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w a:: i:[ C) I [ij 0.00 Silt (ML), dark yellowish brown 10YR 4/6, few fine grained sand, dry Backfill Type: Cement/ Bentonite Grout 0-40 ft bgs Sand (SP), very pale brown 10YR 8/3 and dark yellowish brown 10YR 4/6, fine grained, few silt 5.50 Sandy Silt (ML), very pale brown 10YR 8/3 and dark yellowish brown 10YR 4/6, fine grained, dry 10.00 Clayey Silt (MH), very pale brown 10YR 8/3 and yellowish red 5YR 4/6, few fine grained sand, moist 13.00 Clay (CH), very dark gray 5YR 3/1, few silt, plastic, moist 14.00 Clay (CH), light gray 7.5YR 7/1 and reddish yellow 7.5YR 6/8, few silt, high plasticity, moist Silty Sand (SM), gray 5YR 5/1, fine grained, poorly graded, saturated 20.50 Clay (CH), gray 5YR 5/1, few silt, trace fine grained sand, highly plastic Sand (SP) light gray 5YR 5/1, fine to medium grained, trace silt, flowing sand, coarsening downward Sand (SW) light gray 5YR 5/1, fine to coarse grained (Continued Next Page)

WELL NUMBER L-42 TOTAL DEPTH 40 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

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w Cl) 0::: w 0 0 0 0 0 0 0 0 36.50 Sand (SW) light gray 5YR 5/1, fine to coarse grained, trace quartz gravel, 0 0 0 0 0 0 0 0 subangular to subrounded 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 39.00 Sand (SW) light gray 5YR 5/1, fine to coarse grained, few well rounded quartz gravel Clay (CH), gray 10YR 5/1, few silt, plastic, Black Creek confining clay Bottom of borehole at 40 feet. i( (9

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WELL NUMBER L-43 / W-102 TOTAL DEPTH 34.5 FT BGS A:COM PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 12/09/2020 COMPLETED 12/09/2020 SURVEYING BY/DATE AECOM/ 03-31-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 745090.12 NORTHING 2024124.44 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 137.08 ft CASING ELEVATION 136.86 ft DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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w a:: i:[ C) I [ij 0.00 Crushed Stone (GW) Well Casing 1.00 Sandy Silt (ML), Fill, red 2.5YR 4/8, fine to medium sand, few clay Diameter: 2 in 0-28.5 ft bgs Sand (SP), Fill, very pale brown 10YR 7/3, fine grained, compacted, dry Backfill 0.0 Type: Cement/ 4.00 Sandy Clay (CL), Brownish yellow 10YR 6/6, fine grained sand, dry Bentonite Grout 0-24.5 ft bgs 0.0 Sand (SP), brownish yellow 10YR 6/6, fine, dry Clayey Sand (SP) Light grey 10 YR 7/1 and reddish yellow 7.5 YR 6/6, find to 0.0 course well graded, slightly moist Sand (SW), Very pale brown 10YR 8/3, fine to coarse, well graded, dry 0.0 Clayey Sand (SC), white 2.5Y 8/1 and yellow 10YR 7/6, fine to medium sand, saturated 0.0 / \ / 2*00 ~S-il-ty_S_a_n_d-(S-M-),-v-ery_pa_l_e_b_row_n_1_0_Y_R_8_/_3,-f-in-e-to-coa-rs_e_,-w-el-1g-r-a-ded-,- ~

                             .. : .                            coarsening downward, trace gravel starting at 14 feet angular to subrounded 0.0 -:* ::::-:*

Clayey Sand (SC), very pale brown 10YR 8/3, fine grained, trace mica Sand (SP), very pale brown 10YR 8/3, fine grained, little silt Clayey Sand (SC), very pale brown 10YR 8/3, fine grained Well Seal Silty Sand (SM), very pale brown 10YR 8/3, fine to coarse, well graded, few Type: Bentonite angular gravel, coarsening downward 24.5-26.5 ft bgs

- ( .:: Filter Pack

                              -: *::::-:*                                                                                                                                                                Type: #2 Filter O.O ::*: { .;:.1-2,-     .5...,.0--S-ilt_y_S_an_d_(_S_M_)_,v_e_ry_pa-le-br_ow_n_1-0Y_R_8_/3-,-m-ed-iu_m_t_o_coa_r_se-.-w-e_ll_g-ra-d-ed-,-+-1-0-9-t.6 ::**."/:\(:             Sand

...J s: 0 little angular gravel . *. * ...... 26.5-34.5 ft bgs z 0.0 -:* *..- ,:: : * *. ~ *_-~* *:**. Well Screen

                              -:*::: :-:*                                                                                                                                              .           . 28.5 -33.5 ft bgs

~I ( { .;: 30.50 Silty Sand (SM), white 2.5Y 8/1, fine to coarse sand, trace subangular to 106.6 ::*: ::-.: *:.:.: ::-:::- g 0.0 -:* ::::-: rounded gravel . * .. * .. I 8

                             \\A               32.50 Silty Sand (SM), light grey 10YR 7/2, fine to coarse, few rounded gravel                                            104.6 ::*: \ *\ (:

O.O .,..,.,,.,..,.,t-c-3-,-3.-50,----S-ilt_y_C_la-y-(C-L)-,-R-ed-d-is_h_y-el-low-7-.5-Y_R_6_/8-an_d_p-in-k-is_h_g-re_y_7_.5_Y_R_6_/2-,-d-ry-,-+-10-3-t.6 _-: *-:::.-: :- \: wF--=---....__......,_ _.._............___ black mingo clay ~ -........--------------------1 <L-------------~============================!....-----------_J Bottom of borehole at 34.5 feet.

WELL NUMBER L-44 TOTAL DEPTH 33 FT BGS A:COM PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 12/07/2020 COMPLETED 12/07/2020 SURVEYING BY/DATE AECOM/ 04-01-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_hn_ig~u_e_s_ _ _ _ _ _ _ __ EASTING 745447.6 NORTHING 2024231 .64 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 136.94 ft CASING ELEVATION ~N~/A~-- DRILLING METHOD _G_e_o~p_ro_be_ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE N/A WELL DIAGRAM

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w a:: i:[ C) I [ij Asphalt Backfill Crusher Run (GW) Type: Cement/ Clayey Sand (SC), reddish yellow 7.5YR 6/8 and light gray 5YR 7/1, medium Bentonite Grout to coarse grained, few silt 0-33 ft bgs Clayey Sand (SC), reddish yellow 7.5YR 6/8 and light gray 5YR 7/1 and red 1OR 4/8, fine to medium Sandy Clay (CL), reddish brown 5YR 5/4, stiff, low plasticity, fine grained sand Silty Sand (SM), reddish yellow 7.5YR 7/8, fine to coarse, trace gravel 20.50 Clay (CL), reddish yellow 7.5YR 7/6, few fine grained sand

                        *:*: (* .:: 21 .50  Silty Sand (SM), very pale brown 10YR 8/3, fine to coarse, well graded 0.0 -:* ::::-:*

26.00 Sandy Silt (ML), pale brown 2.5Y 8/3, fine to coarse grained sand, trace gravel, well graded 0.0 O.O } { 29.50 Sand (SW), very pale brown 10YR 8/3, fine to coarse, coarsening downward, trace silt

WELL NUMBER L-45 TOTAL DEPTH 35 FT BGS A:COM PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 12/28/2020 COMPLETED 12/28/2020 SURVEYING BY/DATE AECOM/ 03-31-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 746219.29 NORTHING 2024195.51 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 137.34 ft CASING ELEVATION ~N~/A~-- DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

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w a:: i:[ C) I [ij Sand (SP), Fill, yellowish red 5YR 5/6, fine grained, few clay, damp Backfill Silt (ML), yellowish brown 10YR 5/4, soft, few fine sand, damp Type: Cement/ Silt (ML), yellowish brown 10YR 5/8, soft, damp Bentonite Grout Clay (CL), brownish yellowish 10YR 6/8, firm, moderate plasticity, damp 0-35 ft bgs Silt (ML), light gray 5Y 7/2, soft, damp Sand (SP), yellow 2.5Y 8/6, fine grained, poorly graded, damp Sand (SW), yellow 10YR 7/6, fine to medium grained, well graded, saturated Sand and Gravel (SW), yellow 10YR 7/6, fine grained to gravel, well graded, saturated Sand (SW), very pale brown 10YR 8/2, fine to coarse grained, well graded, saturated Sand (SW), pale brown 2.5Y 8/4, medium to coarse grained, well graded, saturated Sand and Gravel (SW), light yellowish brown 10YR 6/4, medium grained to gravel, well graded, saturated Sand (SW), very pale brown 10YR 7/3, medium to coarse grained, well graded, saturated Sand (SW), light gray 10YR 7/1, fine to coarse grained, well graded, saturated Gravel and Cobbles (GW) light gray 10YR 7/1, saturated Clay (CL), very dark gray 10YR 3/1, very stiff, moderate plasticity, damp Bottom of borehole at 35 feet.

WELL NUMBER L-46 TOTAL DEPTH 35 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 12/28/2020 COMPLETED 12/28/2020 SURVEYING BY/DATE AECOM/ 03-31-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 746256.36 NORTHING ~2~0=24~0~6~0.~3_ _ _ __ DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 138.54 ft CASING ELEVATION ~N~/A~-- DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

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w a:: i:[ C) I [ij Clayey Sand (SC), strong brown 7.5YR 5/6, fine grained, little clay, moist 138.5 Backfill 1.00 Silt (ML), yellow 10YR 8/6, soft, damp 137.5 Type: Cement/ Bentonite Grout 2.00 Clay (CL), brownish yellow 10YR 6/8, stiff, moderate plasticity, damp 136.5 0-35 ft bgs

                        *:*: (* .:: 5.50    Sily Sand (SM), yellow 10YR 7/6 to white 10YR 8/1, fine grained, little silt, dry 133.0

( (- .;: 10.00 Silty Sand (SM), brownish yellow 10YR 6/6, fine grained, little silt, moist 128.5

                        /f           14.00 Sand (SW), very pale brown 10YR 8/4, fine to medium grained, few coarse grained, well graded, saturated 124.5 Sand (SW), very pale brown 10YR 8/4, medium to coarse grained, well               122.5 graded, saturated 11111roo Sand (SW), very pale brown 10YR 7/3, medium to coarse grained, well               118.5 graded, saturated Sand (SW), pale brown 2.5Y 8/3, fine to coarse grained, trace clay, well          110.5 graded, saturated
                       !i!i!roo
                        / } 33.00           Sand (SW), very pale brown10YR 8/3, fine to coarse grained, few gravel, well      105.5 graded, saturated (Continued Next Page)

WELL NUMBER L-46 TOTAL DEPTH 35 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

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WELL NUMBER L-47 TOTAL DEPTH 35 FT BGS A:COM PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 12/29/2020 COMPLETED 12/29/2020 SURVEYING BY/DATE AECOM/ 03-30-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 746228.02 NORTHING 2023866.71 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 137.5 ft CASING ELEVATION ~N~/A~-- DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

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w a:: i:[ C) I[ij 0.00 Silt (ML), brownish yellow 10YR 6/6, soft, damp 137.5 Backfill Type: Cement/

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1.50 Clayey Sand (SC), reddish yellow 7.5YR 7/8, fine grained, little clay, damp 136.0 Bentonite Grout 0-35 ft bgs

                        *:*: (* .:: 6.50     Silty Sand (SM), yellow 10YR 7/8, fine grained, little silt, damp                                           131 .0 Sand (SW) yellow 10YR 7/6, fine to medium grained, trace clay, well graded,                                 128.0
                        \ \ 9.50             wet Sand (SP) very pale brown 10YR 7/4, medium grained, poorly graded,                                          126.0 saturated
                        ;:::;:: 15.00        Sand (SW), pale yellow 5Y 8/2, fine grained, poorly graded, saturated                                       122.5
                        *'*::*:*,: 16.50     Sand (SP) pale yellow 5Y 8/2, medium grained, poorly graded, saturated                                      121 .0
                            ;i)(,_1_9.-00--(-S_P_)-lig_h_t-gr_a_y_1_0_Y_R_7_/1-,-f-in-e-to-coa--rs_e_g-ra-in_ed_,-w-el-1g-r-a-ded-,-sa-t-ur-a-ted----<1-1-18-.5--r-Sand (SW), gray 10YR 6/1, fine to coarse grained, well graded, saturated                                    117.5
                       !l!l!foo Sand and Gravel (SW), gray 1OYR 6/1, medium grained to gravel, well                                         113.5 graded, saturated iiiiiii"oo rm             28.50 Sand (SW), gray 10YR 6/1, medium to coarse grained, well graded, saturated 109.0 30.50  Clay (CH), greenish gray GLEY1 6/1, firm, high plasticity, damp                                             107.0 Bottom of borehole at 35 feet.

WELL NUMBER L-48 TOTAL DEPTH 45 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 03/17/2021 COMPLETED 03/17/2021 SURVEYING BY/DATE AECOM/ 03-31-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 746490.85 NORTHING 2024129.87 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 138.91 ft CASING ELEVATION ~N~/A~-- DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

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w a:: i:[ C) I [ij Concrete Backfill Crushed Stone (GW) 0.0 Type: Cement/ Clay (CH), light brownish gray 10YR 6/2, stiff, high plasticity, damp Bentonite Grout Clay (CH), very pale brown 10YR 7/3, stiff, high plasticity, damp 0-45 ft bgs 0.0 0.0 Silty Clay (CL-ML), very pale brown 10YR 7/3, little silt, stiff, low plasticity

                                        -:*: (* .:: 8.50      Silty Sand (SM), brownish yellow 10YR 6/6, fine grained, little silt, damp 0.0 -:* ::::-:*

Silty Sand (SM), brownish yellow 10YR 6/6, fine grained, little silt, damp 0.0 0.0 rroo Sand (SW), pale brown 2.5Y 7/3, fine to medium grained, few silt, well graded, saturated Gravel (GW) pale brown 2.5 Y 7/3, saturated tr~

                                        ******* 16.0

16.25 Sand (SW), pale brown 2.5Y 7/3, fine to medium grained, few silt, well 0.0 graded, saturated Sand (SW), light gray 10YR 7/2, fine to coarse grained, well graded, saturated 0.0 \ \ 20.00 Sand (SW), light gray 10YR 7/2, fine to coarse grained, trace gravel, well graded, saturated Sand (SW), reddish gray 5YR 5/2, medium to coarse grained, few gravel, well 0 graded, saturated 0

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~ !!~~~d~~r=~~~r~~:-GW), light gray 10YR 7/1, medium grained to gravel, § o.o 34.00 Clay (CH), gray 5Y 6/1, medium stiff, high plasticity, moist <l:i......;:a.:.......&...----'----'----""...........- - - - - - - - - - - - - - - - - - - - - - - - - - - - - ' - - - - " ' -.........,.,..,.__._.___ _ _ _ ___. (Continued Next Page)

WELL NUMBER L-48 TOTAL DEPTH 45 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E w

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w Cl) 0::: w 0.0 Clay (CH), gray 2.5Y 6/1, soft, high plasticity, moist Clay (CH), very dark gray 10YR 3/1, soft, high plasticity, moist 0.0 i-;o;~=-:::--"'-_..:W:..:..ood=_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ____,, 00 ::::r~~:=), 0 0 : ; : ; : ; ;1-3...,.9_

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WELL NUMBER L-49 TOTAL DEPTH 43 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 02/22/2021 COMPLETED 02/22/2021 SURVEYING BY/DATE AECOM/ 03-30-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 746509.81 NORTHING 2023804.53 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 139.57 ft CASING ELEVATION ~N~/A~-- DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

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w a:: i:[ C) I [ij Clay (CH), pale brown 10YR 6/3, medium stiff, high plasticity, wet Backfill 0.1 Type: Cement/ Silt (ML), brown 10YR 4/3, soft, wet Bentonite Grout Clay (CH), yellowish brown 10YR 5/8, medium stiff, high plasticity, moist 0-43 ft bgs 0.1 Clay (CH), yellowish brown 10 YR 5/8, medium stiff, high plasticity, damp 0.2 Clay (CH), yellowish brown 10YR 5/8 to very pale brown 10YR 7/3, mottled, stiff, high plasticity, damp 0.2 0.2 Silty Clay (CL-ML) light yellowish brown 2.5 Y 6/3, little silt, stiff, moderate plasticity, damp 0.4 Sandy Silt (ML), light gray 5Y 7/2, little fine sand, soft, moist 0.3 ... ;- .:: 13.00 Silty Sand (SM), pale brown 2.5Y 7/3, fine to medium grained, little silt, well

                        ........           graded, saturated Sand (SW), pale brown 2.5Y 7/3, fine to coarse grained, well graded, saturated Sand (SW), pale brown 2.5 Y 7/3, fine to coarse grained, few silt, well graded, saturated Sand (SW), light gray 10YR 7/2, fine to coarse grained, few gravel, well graded, saturated Sand (SW), light gray 10YR 7/2, fine to coarse grained, few gravel, well graded, saturated

WELL NUMBER L-49 TOTAL DEPTH 43 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E w

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w Cl) 0::: w 0.0 Sand (SP), very pale brown 10YR 7/3, medium grained, trace coarse sand, poorly graded, saturated 0.0 0.0 Sand (SW), very pale brown 10YR 7/4, medium to coarse grained, few gravel, well graded, saturated Clay (CL), dark gray 10YR 4/1, very stiff, low to moderate plasticity, damp Bottom of borehole at 43 feet.

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WELL NUMBER L-50 TOTAL DEPTH 50 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 02/19/2021 COMPLETED 02/19/2021 SURVEYING BY/DATE AECOM/ 03-31-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 746603.32 NORTHING 2023327.94 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 141 .81 ft CASING ELEVATION ~N~/A~-- DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

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w a:: i:[ C) I [ij 0.9 Silt (ML), yellowish brown 10YR 7/4, soft, wet Backfill Silty Clay (CL-ML), yellowish brown 10 YR5/6 to red 2.5YR 4/6, mottled, little Type: Cement/ silt, medium stiff, damp Bentonite Grout 0.1 0-50 ft bgs Clay (CH), yellowish brown 10YR 5/6 to red 2.5YR 4/6, mottled, few silt, stiff, damp 0.1 0.5 Silt (ML), yellowish red 5YR 5/6, few clay, medium stiff, damp Silty Sand (SM), yellowish red 5YR 5/6, fine grained, little silt, few mica, damp 0.1 -:* ::::-:*

.-. ( :. 11 .00 Silty Sand (SM), strong brown 7.5YR 5/6, fine grained, little silt, damp 0.1 .-*-:,*:.-: 12.00 Sand (SP), yellow 10YR 7/6, fine grained, few silt, few medium grained sand, poorly graded, damp 01 {!(

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Sand (SW), light brownish gray 10YR 6/2, medium to coarse grained, few gravel, well graded, saturated 0.1 0.1

28.50 Sand (SW), light brownish gray 10YR 6/2, medium to coarse grained, few silt, 0.3 few clay, few cobbles, saturated 0000000 29.5 Sand (SW), yellow 10YR 7/6, fine to medium grained, well graded, saturated Silty Clay (Cl-ML), light yellowish brown 10YR 6/4, little silt, stiff, high plasticity, moist Clay (CH), yellowish brown 10YR 5/6, few silt, stiff, high plasticity, damp (Continued Next Page)

WELL NUMBER L-50 TOTAL DEPTH 50 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E w

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w Cl) 0::: w 0.1 35.50 Sandy Silt (ML), yellowish brown 10YR 5/6, little fine sand, soft, saturated 0.2 0.3 -:*: (* .:: 37.00 Silty Sand (SM), brownish yellow 10YR 6/8, fine grained, some silt, saturated 0.1 Sand (SP), light gray 5Y 7/1 , fine grained, few silt, poorly graded, saturated 0.2 Q. (9 z 0.1 0 Sand (SW), light yelloiwsh brown 10YR 6/4, medium to coarse grained, few ~ z gravel, well graded, saturated w w lililfoo ...J Q.

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WELL NUMBER L-51 TOTAL DEPTH 50 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 02/22/2021 COMPLETED 02/22/2021 SURVEYING BY/DATE AECOM/ 03-31-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 746436.16 NORTHING 2023229.58 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 140.71 ft CASING ELEVATION ~N~/A~-- DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

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w a:: i:[ C) I [ij 0.1 0.00 Clay (CH), yellowish brown 10YR 5/6 to gray 10YR 6/1, mottled, few silt, medium stiff, high plasticity, damp Backfill 0.1 Type: Cement/ Bentonite Grout 0.1 2.00 Silty Clay (CL-ML), yellowish brown 10YR 5/6, little silt, medium stiff, damp 0-50 ft bgs 0.1 5.00 Clayey Silt (MH), yellowish brown 10YR 5/6, some clay, medium stiff, damp 0.2 Silty (SM), very pale brown 10YR 7/3, fine grained, little silt, wet 0.1 Clay (CH), pale brown 10YR 6/3, soft, high plasticity, moist

                        ;:::;:: 18.50      Sand (SW), very pale brown 10YR 7/3, fine to medium grained, well graded, saturated Sand (SW), light yellowish brown 10YR 6/4, fine to medium grained, well graded, saturated 0.1  !!!!!roo 1-,-,---,---------------------------t------t--

Sand (SW), pale brown 10YR 6/3, medium to coarse grained, few gravel, trace subrounded cobbles, well graded, saturated Clay (CH), yellowish brown 10YR 5/4, stiff, high plasticity, moist (Continued Next Page)

WELL NUMBER L-51 TOTAL DEPTH 50 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E w

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w Cl) 0::: w Clayey Silt (MH), light brownish gray 2.5Y 6/2, little clay, medium stiff, wet 105.7 Sandy Silt (ML), light yellowish brown, some fine sand, soft, saturated Silty Sand (SM), light brownish gray 10YR 6/2, fine grained, some silt, 104.2 saturated 04 ...... .

                          . ......,.:*,: 38.50 Sand (SP), pale brown 2.5Y 7/3, fine grained, few silt, JX)Orly graded,         102.2 saturated 1.9 (/::):
                         ~:~ ::: : ::: 40.50 Sand (SW), light gray 10YR 7/2, fine to coarse grained, well graded, saturated 100.2 Sand (SW), light gray 10YR 7/2, medium to coarse grained, few gravel, trace     98.7 cobbles, well graded, saturated Clay (CH), gray 1OYR 5/1, very stiff, high plasticity, damp                     95.0 Bottom of borehole at 50 feet.
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WELL NUMBER L-52 TOTAL DEPTH 50 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 03/12/2021 COMPLETED 03/12/2021 SURVEYING BY/DATE AECOM/ 03-30-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 746592.68 NORTHING ~2~0=22=6~6~4.=2_ _ _ __ DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 139.81 ft CASING ELEVATION ~N~/A~-- DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

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a.¢:: :E > E:: a.o MATERIAL DESCRIPTION C: w- 0 0 0

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w a:: i:[ C) I [ij 0.00 Silt (ML), yellowish brown 10YR 5/4, few fine sand, soft, damp Backfill 0.0 Type: Cement/ 1.50 Clay (CH), pale brown 10YR 6/3 to yellowish brown 10YR 5/8, stiff, high Bentonite Grout plasticity, damp 0-50 ft bgs 0.0 4.00 Silt (ML), pale brown 2.5Y 7/3, soft, damp 0.0 0.0 t\1-, 65

                                                             -* . .,.0__~_:_a~-~-~-~_:_~_*~-ig-h-ty-e-llow-i-sh-br_ow_n_1_0Y_R_6_/4_._fi_ne-to_coa_r_s_e_g-ra-in_ed_,w_e_l_l- - t - - - - - - t - -

0.0 t \1-, 85

                                                               * ,---~-:_a~-~-~-~_:_~_*~-t-ro_n_g_b-row_n_7_.5_Y_R-5/_6_,f-in_e_t_o_m_ed-iu_m_g_r-ai-ned_._fe_w_cl_ay_._w_e_ll_t-----l<

iiiiiiit-1-0_.5_0_~_:_a~-~-~-~_:_~_*;_e_ry_pa-le_b_r_ow_n_1-0Y_R_7_/3_,-fin_e_t_o_coa_r_s_e_g-ra-in_ed_._f-ew_c_la-y,_w_e_ll_+----<

0.0 Sand (SW), very pale brown 10YR 7/3, fine to coarse grained, few clay, well

                                           } } 1500                        graded, moist O.O *:: ,* .:: 17.50                   Silty Sand (SM), light gray 10YR 7/2, fine grained, some silt, micaceous, wet 0.0 -:* .....::

0.1 * ... .. ....

                                           ...._.,.:*.-: 21 .00            Sand (SP), light gray 10YR 7/1, fine grained, poorly graded, saturated

"--/.::*:: :.

0.0 1r-r...-.t----,---------------------------t-----l< Sand (SW), light gray 10YR 7/1, fine to coarse grained, well graded, saturated 0.0 0.0 0.0 0.0 ...J s: 0 z ~I g !i: ~ 0.0 0.0 troo Sand (SW), pale brown 10YR 6/3, medium to coarse grained, well graded, saturated Gravel (GW), saturated 8 Clayey Sand (SC), reddish brown 5YR 5/3, fine to medium grained, some ~i......;:a.:.......&...----'----'--o_.o................,_;;.;..;.;;..;....,_C,a:l:::.a.....,.,s=at:,::U:.::ra::,:ted=----------------------'-.....__....,......,...,_,........._ _ _ _ _ __, (Continued Next Page)

WELL NUMBER L-52 TOTAL DEPTH 50 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E w

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w Cl) 0::: w Clay (CH), gray 10YR 5/1, soft, high plasticity, wet Clay (CH), greenish gray GLEY1 5/1, medium stiff, high plasticity, moist 0.0 0.0 i.....~1-----------------------------1------i-

0. 0 -:*: (* .:: 39.00 Silty Sand (SM), gray GLEY1 6/1, fine grained, little silt, saturated Sand (SW), light gray 10YR 7/1, fine to coarse grained, well graded, saturated Gravel and Cobbles, saturated Clay (CH), dark gray 10YR 4/1, stiff, moderate to high plasticity, damp Bottom of borehole at 50 feet.

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WELL NUMBER L-53 TOTAL DEPTH 49.5 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 03/12/2021 COMPLETED 03/12/2021 SURVEYING BY/DATE AECOM/ 03-30-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_hn_ig~u_e_s_ _ _ _ _ _ _ __ EASTING 746460.3 NORTHING 2022490.48 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 139.29 ft CASING ELEVATION ~N~/A~-- DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

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w a:: i:[ C) I [ij 0.00 Silty Clay (CL-ML), red 2.5YR 5/6 to gray 7.5YR 6/1, mottled, little silt, 139.3 medium stiff, damp Backfill 0.6 Type: Cement/ Bentonite Grout 0.0 0-49.5 ft bgs Clayey Sand (SC), reddish yellow 7.5YR 6/6, fine to medium grained, little 135.8 0.0 clay, damp 0.0 0.0 0.1 :,::;*::;*::;*1-9...,.

                                                  .0-0.,..---S-a_n_d graded,_(s_w_).

moist _red-di-sh-ye_ll_ow_7_

                                                                                                  .5_Y_R_7_/6_,-fi-ne_t_o_coa_r_se_g_r_ai-ned_,_fe_w_c_ia_y_,w_e_1_1--+-13_0--1<
                                                                                                                                                                               .3
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128.8 10YR 7/4, *~ro~~a~. ,~sit,,~ Sand (SP), yellow 10YR 7/6 to light gray 10YR 7/2, fine grained, trace silt, 123.8 poorly graded, wet to saturated 0.0 Sand (SW), light gray 10YR 7/2, fine to coarse grained, well graded, 119.3 saturated 0.0 0.0 0.0 0.0

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WELL NUMBER L-53 TOTAL DEPTH 49.5 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E w

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w Cl) 0::: w 38.00 Clay (CH), gray 2.5Y 6/1, soft, high plasticity, wet 101 .3 Sand (SP), light brownish gray 10YR 6/2, fine grained, poorly graded, 98.8 saturated Sand (SW), light brownish gray 10YR 6/6, fine to medium grained, well 95.3

                              } } 4400  graded, saturated 0.0 Silty Sand (SM), gray 10YR 5/1, fine grained, some silt, clay lens at 47 ft. 92.8 90.8
~

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WELL NUMBER L-54 TOTAL DEPTH 28 FT BGS A:COM PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 03/16/2021 COMPLETED 03/16/2021 SURVEYING BY/DATE AECOM/ 03-30-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_hn_ig~u_e_s_ _ _ _ _ _ _ __ EASTING 746162.66 NORTHING 2022554.53 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 140.22 ft CASING ELEVATION ~N~/A~-- DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

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w a:: i:[ C) I [ij 0.00 No lithologic samples collected. See boring log for monitoring well W-19B 140.2 Backfill Type: Cement/ Bentonite Grout 0-28 ft bgs

...J s:                                                                      Bottom of borehole at 28 feet.

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WELL NUMBER L-55 TOTAL DEPTH 48 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 03/15/2021 COMPLETED 03/15/2021 SURVEYING BY/DATE AECOM/ 03-30-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 746642.09 NORTHING 2022392.44 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 139.79 ft CASING ELEVATION ~N~/A~-- DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

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                <I:                ~...J 0       en    (.)

w a:: i:[ C) I [ij 0.00 Silt (ML), dark yellowish brown 10YR 4/4, soft, moist Backfill 0.0 Type: Cement/ 1.50 Clay (CH), gray 10YR 6/1 to brownish yellow 10YR 6/8, very stiff, high Bentonite Grout plasticity, moist 0-48 ft bgs Q. (9 0.1 z 0.0 0 4.50 Silt (ML), very pale brown 10YR 8/2, medium stiff, damp ~ ...

                                   ...       5.50   Sand (SW), brownish yellow 10YR 6/6, fine to coarse grained, few clay, well z

w 0.0 0 0 0 0 0 0 0 0 graded, dry w 0 0 0 0 0 0 0 0 ...J Q. 0 0 0 0

,ii I

0.0 0 0 0 0 0 0 0 0 ii: ILi 0 0 0 0 0 0 0 0 LL LL 0.0 0 0 0 0 0 0 0 0 ~I ~ 0.0 0 0 0 0 0 0 0 0 10.00 Sand (SW), light yellowish brown 10YR 6/4, fine to coarse grained, few clay, well graded, dry w Cl) 0 0 0 0 0 0 0 0 0

c (9

0.0 0 0 0 0 0 0 0 0 0 0 0 0 z Silty Sand (SM), light yellowish brown, fine grained, little silt, dry i== Cl) w ...

                                   ...       14.00  Sand (SW), very pale brown 10YR 7/4, fine to coarse grained, well graded,

~ 0.4 0 0 0 0 0 0 0 0 dry z 9 0.8 0 0 0 0 0 0 0 0 0 ,._ 0.0 0 0 0 0 0 0 0 0 16.00 Sand (SW), very pale brown 10 YR 7/4, fine to coarse grained, well graded, ~ 0.0 0 0 0 0 0 0 0 0 saturated "'~ 0 0 0 0 0 0 0 0 ~ 0 0 0 0 0 0 0 0 "? 0 0 0 0 0 0 0 0 Q. (9 M 0.0 0 0 0 0 0 0 0 0 20.00 Sand (SW), light brownish gray 10YR 6/2, medium to coarse grained, well z 0 0 0 0 0 0 0 0 graded, saturated 0 i== ~ 0 0 0 0 0 0 0 0 z w 0.0 0 0 0 0 0 0 0 0 w 0.0 0 0 0 0 0 0 0 0 ...J Q.

,ii 0

0 0 0 0 0 0 0 ii: I 0.0 0 0 0 0 0 0 0 0 25.00 Sand (SW), very pale brown 10YR 7/3, medium to coarse grained, well ILi LL 0 0 0 0 0 0 0 0 graded, saturated LL u

c I 0

0 0 0 0 0 0 0 3: 0.0 0 0 0 0 0 0 0 0 0 0 0 0 3: 28.50 Sand (SP), very pale brown 10YR 7/3, fine grained, poorly graded, saturated 0 z x 0.0

                                 ?{\)

<01 (9 0 0 0 0 30.50 Sand (SW), gray 10YR 7/1, medium to coarse grained, well graded, saturated 0 ...J I-0.0 0 0 0 0 0 0 0 0 0:: Cl) 0 0 0 0 0 0 0 0 32.00 Sand (SW) brownish yellow 10YR 6/8, medium to coarse grained, trace gravel, well graded, saturated

0.0 Sand (SW) brownish yellow 10YR 6/8, medium to coarse grained, few gravel, 0

u well graded, saturated w 0.0 :. **:.. (Continued Next Page)

WELL NUMBER L-55 TOTAL DEPTH 48 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E w

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cJi 6 (.)

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w Cl) 0::: w Sand (SP), yellowish brown 10YR 5/4, medium grained, poorly graded, saturated Sand (SP), dark gray 10YR 3/1 , medium grained, poorly graded, saturated Clay (CH), very dark gray 10YR 3/1 , soft, high plasticity, moist Wood Clay (CH), very dark gray 10YR 3/1 , soft, high plasticity, moist Wood

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WELL NUMBER L-56 TOTAL DEPTH 45.2 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 02/17/2021 COMPLETED 02/17/2021 SURVEYING BY/DATE AECOM/ 03-30-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 746538.31 NORTHING 2022245.57 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 140.04 ft CASING ELEVATION ~N~/A~-- DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE N/A WELL DIAGRAM

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w a:: i:[ C) I [ij Silty Sand (SM), reddish yellow 7.5YR 6/6, fine grained, moist Backfill Silty Clay (CL-ML), gray 7.5YR 6/1 and reddish yellow 7.5YR 6/8, few fine Type: Cement/ sand, dry Bentonite Grout 0.1 0-45.2 ft bgs 0.2

                        *:*: (* .:: 5.50         Silty Sand (SM), reddish yellow 7.5YR 7/8 and yellowish red 5YR 5/6, fine to coarse, dry 0.0 -:* .....::

0.0 -:* ::::-:*

                        *:*:*:* 10.5             Sand (SW), very pale brown 10YR 8/2, fine to medium grained, trace silt
                        ) / 11 .00               Sand (SW), very pale brown 10YR 8/2, fine to coarse grained, trace angular gravel 0.0 Sand (SW), very pale brown 10YR 8/2, fine to coarse grained, trace angular gravel, moist 0.0 0.0 0.0  rm                19.00 Sand (SW), very pale brown 10YR 8/2, fine to coarse grained, few silt, few angular gravel 0.0 Jroo                     Sand (SW), reddish yellow 7.5YR 6/6 and very pale brown 10YR 8/3, fine to coarse, coarsening upward, trace silt, trace angular gravel, saturated 0.0 *:*: (* .:: 24.00         Silty Sand (SM), very pale brown 10YR 8/2, fine to coarse (Continued Next Page)

WELL NUMBER L-56 TOTAL DEPTH 45.2 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E w

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MATERIAL DESCRIPTION

cJi 6 (.)

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w Cl) 0::: w 37.00 Silty Clay (CL-ML), very dark gray, few fine sand, few wood chunks Sand (SW), gray 7.5YR 6/1 to light gray 10YR 7/1, fine to coarse grained, trace silt, few angular to rounded gravel 00 iiiiiii ~

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WELL NUMBER L-57 TOTAL DEPTH 48 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 02/16/2021 COMPLETED 02/16/2021 SURVEYING BY/DATE AECOM/ 03-30-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 746366.08 NORTHING 2022089.65 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 139.86 ft CASING ELEVATION ~N~/A~-- DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE N/A WELL DIAGRAM

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w a:: i:[ C) I [ij 0.00 Silty Clay (CL-ML), gray 7.5YR 6/1 and reddish yellow 7.5YR 6/8, few fine 139.9 grained sand, moist 0-1 feet, dry 1-4 feet Backfill 0.3 Type: Cement/ Bentonite Grout 0-48 ft bgs Silty San (SM), brown 7.5YR 4/3, brownish yellow 10YR 6/8, very pale brown 135.9 10YR 7/3, fine to coarse grained, slightly moist 0.2 -:* ::::-:* 0.7

                        -::.\. -::

1.--1/4-it'-,,t-,---,---------------------------t-,---t 0 0.6 IIIIII 1-9...,..5-0-,---~-a-7_~_(_S_W_)_.1-ig_h_tg-r-ay_10_Y_R-7/_1_,f-in_e_t_o_m_ed-iu_m_g_r-ai_n_ed_._fe_w_si-lt,_s_li_gh_t_ly--t-1-3-0.--i<4 1 Sand (SW), light gray 10YR 7/1, fine to coarse grained, well graded, moist 126.4 0.3 0.5 0.2 0.9 0.2 rm 24.00 Sand (SW), light gray 10YR 7/1, fine to coarse grained, well graded, saturated 115.9 Sand (SW), light gray 10YR 7/1, fine to coarse grained, trace-few angular 113.9 gravel, well graded, saturated 0.2 0.3 11111roo

                        -:*: (* .:: 30.00       Silty Sand (SM), yellow 10YR 8/6 and very pale brown 10YR 8/3, fine to                                      109.9
                         -: *::: :-:*           medium grained 0.2 33.00     Silty Clay (CL-ML), gray 10YR 6/1, few fined grained sand, trace wood                                       106.9 chunks, high plasticity (Continued Next Page)

WELL NUMBER L-57 TOTAL DEPTH 48 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E w

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w Cl) 0::: w

                               -:*: (* .:: 36.00            Silty Sand (SM), light gray 7.5YR 7/1, fine grained                103.9 tr rr~

00 Sand (SW), light gray 7.5YR 7/1, fine to medium grained, few silt Sand (SW), light gray 7.5YR 7/1, fine to coarse, well graded 100.9 98.4 Sand (SW), light gray 7.5YR 7/1, medium to coarse grained, trace 95.9

                               / / 4400                     subrounded gravel 0 -2 1-r7-:,-,.,..,,1-4...,.6-
                                                     .5-,-0_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __

Clay (CL), very dark gray 7.5YR 3/1, stiff 93.4 Bottom of borehole at 48 feet.

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WELL NUMBER L-58 TOTAL DEPTH 45 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 02/15/2021 COMPLETED 02/16/2021 SURVEYING BY/DATE AECOM/ 03-30-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 746125.95 NORTHING 2022091 .69 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 139.56 ft CASING ELEVATION ~N~/A~-- DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE N/A WELL DIAGRAM

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w a:: i:[ C) I [ij 0.00 Silt (ML), yellowish brown 10YR 5/6 and brown 7.5YR 5/4, few fine grained sand, moist Backfill 0.1 1.00 Type: Cement/ Silty Clay (CL-ML), reddish yellow 7.5YR 6/8 and light gray 7.5YR 7/1, moist Bentonite Grout 0-45 ft bgs 0.2 0.2 Sand (SW), yellowish brown 10YR 5/6 and dark brown 7.5YR 3/3, fine to coarse grained, few silt, dry Silty Sand (SM), dark brown 7.5YR 3/3 and reddish yellow 10YR 5/6 and yellowish brown 7.5YR 6/8, fine to coarse grained, moist Sand (SW), white 7.5YR 8/1, fine to coarse grained, few silt, moist Sand (SW), white 7.5YR 8/1, medium to coarse grained, few silt, few angular to subangular gravel, saturated Sand (SW), white 7.5YR 8/1 and reddish yellow, fine to coarse grained, few silt, saturated (Continued Next Page)

WELL NUMBER L-58 TOTAL DEPTH 45 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

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w Cl) 0::: w 35.00 Silty Clay (CL-ML), brown 7.5YR 5/2, little wood fragments, high plasticity 104.6 0.1 Sand (SW), white 10YR 8/1, fine to coarse grained, trace silt, trace organic 101 .1 0.4 matter, well graded

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WELL NUMBER L-59 TOTAL DEPTH 50.5 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 05/10/2021 COMPLETED 05/10/2021 SURVEYING BY/DATE AECOM/ 08-20-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 746775.58 NORTHING 2023431 .04 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION - - ft- - - - CASING ELEVATION ~N~/A~-- 139 DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE N/A WELL DIAGRAM

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a.¢:: :E > E:: a.o MATERIAL DESCRIPTION C: w- 0 0 0

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w a:: i:[ C) I [ij

:. ** 0.00 Silty Sand (SM), light brown 7.5YR 6/4, fine grained, dry Backfill 0.50 Clayey Silt (MH), reddish yellow 7.5YR 6/8 and red 7.5YR 4/8, trace fine Type: Cement/

grained sand, stiff, dry Bentonite Grout 0.8 0-50.3 ft bgs 3.00 Clayey Silt (MH), light gray 5YR 7/1 and yellowish red 5YR 5/8, few fine grained sand, dry 3.6

                        *:: (* .:: 5.00     Silty Sand (SM), very pale brown 10YR 8/3, fine to medium grained, some
                        .***:::-:,

feldspar, dry 0.1 .. *:::- :*

                        \ \ \ 8.50          Silty Sand (SM), reddish yellow 7.5YR 5/8 and very pale brown 10YR 8/4, 0.0  . ,                 fine to coarse grained 0.5        .....::

-:,*:.-: 12.00 Sand (SP), very pale brown 10YR 8/3, fine grained, few silt, trace mica,

                         *:.*:.:-*.         poorly graded, coarsening downward Sand (SW), very pale brown 10YR 8/3, fine to medium grained, few silt, trace mica, well graded, coarsening downward Sand (SW), very pale brown 10YR 8/3, fine to coarse grained, few silt, trace mica, well graded, coarsening downward Sand (SW), light gray 7.5YR 7/1, fine to coarse grained, some small angular to subangular gravel, little silt, well graded Sand (SW), very pale brown 10YR 8/4, fine to coarse grained, few angular to subangular small gravel, few silt, coarsening downward

WELL NUMBER L-59 TOTAL DEPTH 50.5 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E w

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WELL NUMBER L-60 TOTAL DEPTH 42 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 05/11/2021 COMPLETED 05/11/2021 SURVEYING BY/DATE AECOM/ 08-20-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 746798.11 NORTHING 2023697.36 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 138.63 ft CASING ELEVATION ~N~/A~-- DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE N/A WELL DIAGRAM

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dry Bentonite Grout 3.4 0-42 ft bgs 77.6 4.00 Sandy Silt (ML), reddish yellow 7.5YR 6/8 and very pale brown 10YR 8/2, fine grained sand Silty Sand (SM), reddish yellow 7.5YR 6/8, fine to coarse Sand (SP), white 7.5R 8/1 and reddish yellow 7.5R 8/6, fine grained, few medium grained sand, few silt Sand (SW), white 7.5R 8/1 and reddish yellow 7.5R 8/6, fine to coarse, saturated 0*6 i-.,__._<.;::C7*:*,._,:l-1-, .5.,...0_S_a_n_d_(_S_P_),-v-ery_pa_l_e_b_row_n_1_0_Y_R_8_/_2,-f-in_e_g-ra-in_ed_,f_e_w_s-ilt-,-tr-ace_m_ed-iu-m--t------l<

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                         -:*: (* .:: 27 _50 .,__f_in_e""'g_ra_in_ed_s_an_d....c,_s_at_u_ra_ted  _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _...,
                          -:* ::: :-:                        Silty Sand (SM), very pale brown 10YR 8/4, fine to medium grained, saturated Sand (SW), white 7.5R 8/1, fine to coarse grained, few silt, well graded, saturated

WELL NUMBER L-60 TOTAL DEPTH 42 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

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: roo 0000000 39.5 Sand (SW), very pale brown 10YR 8/3, fine to coarse, few silt, trace subangular to rounded gravel, well graded, saturated, Clay (CL), gray 7.5YR 5/1 to very dark gray 7.5YR 3/1, very stiff, dry Bottom of borehole at 42 feet.

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WELL NUMBER L-61 TOTAL DEPTH 40 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 05/11/2021 COMPLETED 05/11/2021 SURVEYING BY/DATE AECOM/ 08-20-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 746814.15 NORTHING 2023999.05 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 135.65 ft CASING ELEVATION ~N~/A~-- DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE N/A WELL DIAGRAM

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                                         .:.:,*:.-: 13.00 ~s_a_tu_ra_ted  _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~

0.3 1(; ~~,(~~~~~= ~3 ,oo l~I g~ 10YR 7/1, fl"' gral,~. 0.2 Sand (SW), very pale brown 10YR 8/3 and light gray 10YR 7/1, fine to coarse grained, few silt, trace angular gravel, well graded Sand (SW), very pale brown 10YR 8/3 and light gray 10YR 7/1, fine to coarse 0.4 grained, few silt, well graded Sand (SP), pale brown 2.5Y 7/3, fine grained, few silt, few mica, poorly graded

                                         *:*:*:* 1.5 1 8 7 ' - - = - - - - - - - - - - - - - - - - - - - - - - - - - ' f 1 1 0.2 ::_::_::_::_::_::_::. 2 1.75  ;~;ii!;;i~~f1dish yellow 7.5YR 7/8, fine to coarse grained, few silt, few Sand (SW), light gray 10YR 7/2, fine to coarse grained, few silt, well graded 0.0 Sand (SW), pale brown 2.5Y 8/2, fine to coarse grained, trace silt, well graded
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(Continued Next Page)

WELL NUMBER L-61 TOTAL DEPTH 40 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E w

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w Cl) 0::: w angular gravel, well graded 0.2 r:-::-~1'=-=--"'------=S:::ilt:t.y_:C:.:.:la::t.y...l(C=L-.:.:M.:.:L:!.!)'...:.:li!i!:gh.:.:t..52g:.:ree::.=:..::ni=sh~gr-=ayL..=G=LE=.Y.:....1.:....1.:..:0:.:G:...:Y:_7:.:./..:.21,c..:_f=:ew:.:....:..::fin:.:.:e:...:s::a::.:n=.d_ __/ Sand (SP), light gray 10YR 7/1, coarse grained, some subangular to rounded gravel, poorly graded 0.2 Clay (CL), gray 10YR 6/1 to dark gray 10YR 4/1, very stiff, low plasticity Bottom of borehole at 40 feet. i( (9

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WELL NUMBER L-62 TOTAL DEPTH 35 FT BGS A:COM PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 05/14/2021 COMPLETED 05/14/2021 SURVEYING BY/DATE AECOM/ 08-16-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_h_n~ig~ue_s_ _ _ _ _ _ _ _ __ EASTING 746081 .7 NORTHING 2024579.77 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 134.33 ft CASING ELEVATION ~N~/A~-- DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _2_.5_ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE N/A WELL DIAGRAM

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w a:: i:[ C) I [ij Clayey Sand (SC), reddish yellow 7.5YR 6/8, fine to medium grained, little clay, well graded, damp Backfill 0.0 Type: Cement/ Bentonite Grout 0-35 ft bgs 0.0 Clayey Sand (SC), light gray 10YR 7/1, fine grained, little clay, poorly graded, 0.0 :. -::- .. 5 50 moist

                        }{::'.) .                   Sand (SP), strong brown 7.5YR 5/8, fine grained, few clay, poorly graded, moist 0.0 l r ; ' " + - t , t - - - - , - - - - - - - - - - - - - - - - - - - - - - - - - - - - - t - - - - - l <

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22.50 Sand (SW), light gray 10 YR 7/2, medium to coarse grained, subangular, trace gravel, well graded, saturated O.O ...._.,.

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24.50 Sand (SP), light gray 10YR 7/2, medium grained, poorly graded, saturated 0.1 ?(" Sand and Gravel (SW), white 10 YR 8/1, medium grained to gravel, trace cobbles, subangular, well graded, saturated o.o

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                        ******* 29.5                Sand (SW), pale brown 10 YR 6/3, medium to coarse grained, well graded, saturated Clay (CH), yellowish brown 10 YR 5/8, stiff, high plasticity, damp Clay (CH), very dark gray 10YR 3/1, very stiff, moderate plasticity, damp Bottom of borehole at 35 feet.

WELL NUMBER W-4R ASCOM TOTAL DEPTH 18 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 07/23/2021 COMPLETED 07/23/2021 SURVEYING BY/DATE AECOM/ 08-19-21 DRILLING CONTRACTOR SAEDACCO EASTING 744339.08 NORTHING 2023932.04 DRILLING EQUIPMENT Geo12robe 8140 LS Sonic GROUND ELEVATION 117.27 ft CASING ELEVATION 119.82 ft DRILLING METHOD Sonic HOLE DIAMETER (INCHES) 6 LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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2 in ___L_ 0-4.5 ft bgs ___L_ i( (!) . ___+/-_ 0.0 3.50 Clayey Silt {MH), strong brown 7.5YR 4/6, little clay, medium stiff, damp 113.8 0

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WELL NUMBER W-69 ASCOM TOTAL DEPTH 18 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/20/2019 COMPLETED 06/20/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 745726.92 NORTHING 2026064.29 DRILLING EQUIPMENT _G_P_8_1_4_0_LS _ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 137.67 ft CASING ELEVATION 140.64 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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0 0 ft bgs w ~ 0:: [ij o.oo Silt (ML), brown 7.5Y 5/9, stiff, few clay, few fine sand 137.7 Well Casing Diameter: 2 in 0-8 ft bgs Backfill Type: Cement / 43.5 *((( 4.00 Sand (SP), light yellowish brown 10YR 6/4, fine grained, little silt 133.7 Bentonite Grout

                             .. : *.*.                                                                                                      0-3. 75 ft bgs Silty Sand (SM), light yellowish brown 10YR 6/4, fine grained, little silt    132.2 Well Seal
                                                                                                                                   ..       Type: Bentonite Clayey Sand (SC), light yellowish brown 10 YR 6/4                             130.7 ...      3. 75-5. 75 ft bgs Filter Pack Clayey Sand (SC), yellowish brown 10YR 5/6, fine to medium grained, little    128.7
                                                                                                                                   ...      Type: #2 Filter clay, wet                                                                                    Sand 5.75-18 ft bgs Well Screen 8 -18 ft bgs Sand (SW), very pale brown 10YR 7/4, fine to medium grained, few clay, well graded, saturated n.

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WELL NUMBER W-70 ASCOM TOTAL DEPTH 55 FT BGS PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/20/2019 COMPLETED 06/20/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 745719.22 NORTHING 2026062.87 DRILLING EQUIPMENT _G_P_8_1_4_0_LS _ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 138.02 ft CASING ELEVATION _1~4~1~ft_ _ DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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                        .. : *.*.                                                                                                    0-39 ft bgs Silty Sand (SM), light yellowish brown 10YR 6/4, fine grained, little silt Clayey Sand (SC), light yellowish brown 10YR 6/4, 2.3                   Clayey Sand (SC), yellowish brown 10YR 5/6, fine to medium grained, little clay, wet Sand (SW), very pale brown 10YR 7/4, fine to medium grained, few clay, well graded, saturated 20.00  Sandy Clay (CH), gray 5YR 6/1, medium stiff, moderately plastic, wet Sand (SP), gray 5YR 6/1, fine grained, poorly graded, few clay, saturated Sand (SW), strong brown 7.5YR 5/8, fine to coarse grained, few clay, well graded, saturated Sand (SW), very pale brown 10YR 8/2, fine to coarse grained, few clay, well graded, saturated Clay (CL), yellowish brown 10YR 5/8, soft, highly plastic (Continued Next Page)

WELL NUMBER W-70 ASCOM TOTAL DEPTH 55 FT BGS PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

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(!) I 0 [ij Sand (SP), yellow 10YR 7/8, fine grained, poorly graded, saturated 100.0 Well Seal Type: Bentonite 39-42 ft bgs Filter Pack Type: #2 Filter 42.00 Silt (ML), light gray 10YR 7/1, soft, wet 96.0 Sand

                               -:*: ~- ;: 43.00      Silty Sand (SM), light gray 10YR 7/1, fine grained, some silt, wet   95.0          42-55 ft bgs
                               ....:**:*-.*                                                                                             Well Screen 2.1         : ..
                               -:_:_  ~--- -::                                                                                          44 -49 ft bgs Sand (SW), very pale brown 10YR 8/3, medium to coarse grained, few   92.5 gravel, trace cobbles, well graded, saturated n.

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WELL NUMBER W-71 ASCOM TOTAL DEPTH 103 FT BGS PAGE 1 OF 3 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/18/2019 COMPLETED 09/19/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 745716.65 NORTHING 2026052.33 DRILLING EQUIPMENT _G_P_8_1_4_0_LS _ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 137.96 ft CASING ELEVATION 140.72 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY C.Suddeth/M.Glowacz CHECKED BY Jeremy Grant CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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2 in 0-93 ft bgs Backfill Type: Cement / o.o *((( 4.00 Sand (SP), light yellowish brown 10YR 6/4, fine grained, poorly graded, moist Bentonite Grout

                       .. : *.*.                                                                                                           0-75 ft bgs Silty Sand (SM), light yellowish brown 10YR 6/4, fine grained, little silt, wet Well Casing

0.0 Diameter

2 in Clayey Sand (SC), light yellowish brown 10YR 6/4, fine to medium grained, 3-0 ft bgs little clay o.o Clayey Sand (SC), yellowish brown 10YR 5/6, fine to medium grained, little clay, wet 0.0 Sand (SW), very pale brown 10YR 7/4, fine-medium grained, few clay, well graded, saturated 0.0 20.00 Sandy Clay (CH), gray 5Y 6/1, medium stiff, moderately plastic, wet Sand (SP), gray 5YR 6/1, fine grained, few clay, poorly graded, saturated Sand (SW), strong brown 7.5YR 5/8, fine to coarse grained, few clay, well graded, saturated Sand (SW), very pale brown 10YR 8/2, fine to coarse grained, few clay, well graded, saturated Clay (CH), yellowish brown 10YR 5/8, soft, highly plastic, wet (Continued Next Page)

WELL NUMBER W-71 ASCOM TOTAL DEPTH 103 FT BGS PAGE 2 OF 3 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

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(!) I 0 [ij Sand (SP), yellow 10YR 7/8, fine grained, poorly graded, saturated 101.5 0.0 42.00 Silt (ML), light gray 10YR 7/1, soft, wet 96.0 0.0 -:*: ~- ;: 43.00 Silty Sand (SM), light gray 10YR 7/1, fine grained, some silt, wet 95.0

                       -:_:_  ~--- -::

Sand (SW), medium to coarse grained, few gravel, few cobbles, well graded, 92.5 saturated Sand (SW), very pale brown 10YR 8/3, medium to course grained, few 89.0 gravel, few cobbles, saturated 53.00 Clay (CH), dark gray 10YR 4/1, very stiff, moderate to highly plastic, moist 85.0 59.00 Clay (CH), blueish gray GLEY2 5/1, slightly silty, stiff 79.0 (Continued Next Page)

WELL NUMBER W-71 ASCOM TOTAL DEPTH 103 FT BGS PAGE 3 OF 3 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

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(!) I 0 [ij Sand (SW), light blueish gray GLEY2 7/1, medium grained to cobbles, alluvial 59.0 cobbles are well rounded quartz, loose, soft 86.00 Clay (CH), blueish gray GLEY2 7/1, slightly silty, stiff 52.0 Filter Pack Type: #2 Filter

                                                                                                                                ..  *::- Sand 88-1 03 ft bgs Sand (SW), light blueish gray GLEY2 7/1, fine to coarse grained, highly      46.0    *.

permeable, saturated Well Screen 93 -103 ft bgs

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WELL NUMBER W-72 ASCOM TOTAL DEPTH 15.5 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/30/2019 COMPLETED 06/30/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 745450.25 NORTHING 2024162.69 DRILLING EQUIPMENT _G_P_8_1_4_0_LS _ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 136.81 ft CASING ELEVATION 136.29 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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w 0:: (!) I [ij o.oo None: soft-cleared with vacuum truck to 7' 136.8 Well Casing Diameter: 2 in 0-5 ft bgs Backfill Type: Cement / Bentonite Grout 0-2 ft bgs Well Seal Type: Bentonite Sand (SW), reddish yellow 5YR 7/6, fine to medium grained, few silt, very 129.8 :. *. 2-3. 75 ft bgs soft Filter Pack Type: #2 Filter Sand Sandy Silt (ML), light gray 5YR 7/2 and reddish yellow 5YR 6/8 3.75-15.5 ft bgs Silty Clay (CL-ML), dark yellowis brown 10YR 4/6, few fine grained sand Sandy Silt (ML), light gray 5YR 7/2 and reddish yellow 5YR 6/8 Well Screen 5 -15 ft bgs n. (!) 0

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WELL NUMBER W-73 ASCOM TOTAL DEPTH 16 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/30/2019 COMPLETED 06/30/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 745339.31 NORTHING 2024166.25 DRILLING EQUIPMENT _G_P_8_1_4_0_LS _ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 136.85 ft CASING ELEVATION 136.45 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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w 0:: (!) I [ij Asphalt Well Casing None: soft-cleared with vacuum truck to 8' Diameter: 2 in 0-6 ft bgs Backfill Type: Cement / Bentonite Grout 0-2 ft bgs Well Seal Type: Bentonite 7.00 Clayey Silt {ML), light gray 5YR 7/1 and pale red 7.5YR 7/4, few fine sand, 2-3.5 ft bgs trace mica 8.00 Sandy Silt {ML), light gray 5YR 7/1 and reddish yellow 5YR 6/8, banded Filter Pack Type: #2 Filter Sand Silty Sand {SM), reddish yellow 5YR 6/8 and yellow 10YR 8/6, fine to coarse 3.5-16 ft bgs grained Well Screen 6 -16 ft bgs n. (!) 0

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WELL NUMBER W-74 ASCOM TOTAL DEPTH 34 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 09/17/2019 COMPLETED 09/17/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 745325.13 NORTHING 2024067.17 DRILLING EQUIPMENT _G_P_6_6_2_0_ _ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 136.64 ft CASING ELEVATION 139.93 ft DRILLING METHOD _G_e_o~p_ro_be/_H_S_A_ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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0 ft bgs w ~ 0:: [ij 0.00 None: soft-cleared to 5' 136.6 Well Casing Diameter: 2 in 0-25.5 ft bgs Backfill Type: Cement / Bentonite Grout 0-20 ft bgs 0.0 5.00 Sandy Silt {ML), yellow red 5YR 5/8 and white 2.5YR 8/1, moist, fine to 131.6 medium grained 0.0 -:*: ~- ;: 9.50 Silty Sand {SM), reddish yellow 7.5YR 7/8 and light gray 7.5YR 7/1, fine to 127.1

                                    ......                    coarse grained, well graded, saturated
                                    -:_:_   ~--- -::

Sand {SW), very pale brown 10YR 8/3 and white 5R 8/1, medium to coarse 124.6 grained, little silt, loose, coarsening downward, silt content decreasing with depth, saturated 0.0 0.0 Well Seal Type: Bentonite 20-23 ft bgs

                                    *:*:*:* 21.00             Sand {SW), white 5R 8/1 and light gray 1OR 7/1, fine to coarse grained, few                                 115.6 small gravel, gravel content increasing with depth, angular to subangular, loose, saturated                                                                                                                            Filter Pack Type: #2 Filter 0

0 0 0 0 0 0 0 Sand 23-34 ft bgs 0.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Well Screen 0 0 0 0 0 0 0 0 25.5 -30.5 ft bgs 0 0 0

                                      ... 0 0

0 0 0 0 0 0 0

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...J 3: 0 z 0.0 ]too Sand (SW), white 5R 8/1 and light gray 1OR 7/1, fine to coarse grained, some gravel, little silt, saturated ~ 1 30 Clayey Silt {MH), reddish yellow 5YR 6/8, moist, plastic 106 1 *. *_.. *. _-:.. g . *.-.*.... *.*::: I ..,.,..,.,..,.,_3_2__0_0_s_i-lty_C_la_y_(C_L_)_,1-ig_h_tg-r-ay-5Y_R_7-/1_a_n_d_ye-llow-is_h_r_ed-5Y_R_5_/8-,-ri-gi_d/_b-ritt-l-e,--+-1-0-4.---<6*:\\\:\: en dense, dry *.-... _.*_. ..*_..-_. gi-----;a..:.......&...----'----'----"'-"'"""-"""'------------B-ot-to_m_of_bo_re_h_o_le_at_34_feet !;l!...._____________________________________________________.

WELL NUMBER W-75 ASCOM TOTAL DEPTH 15.5 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 09/17/2019 COMPLETED 09/17/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 745317.23 NORTHING 2024064. 76 DRILLING EQUIPMENT _G_P_6_6_2_0_ _ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 136.6 ft CASING ELEVATION 139.85 ft DRILLING METHOD _G_e_o~p_ro_be/_H_S_A_ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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0 ft bgs (.) w 0:: ii: (!) I [ij o.oo None: soft-cleared to 5' 136.6 Well Casing Diameter: 2 in 0-5.5 ft bgs Backfill Type: Cement / Bentonite Grout 0-1.5 ft bgs 5.00 Sandy Silt {ML), yellowish red 5YR 5/8 and white 2.5YR 8/1, fine to medium grained, moist Well Seal Type: Bentonite 1.5-3 ft bgs Filter Pack Type: #2 Filter

                              -:*: ~- ;: 9.50      {SM) reddish yellow 7.5 YR 7/8 and light gray 7.5 YR 7/1, well graded,                     Sand
                              ......               saturated, fine to coarse grained                                                          3-15ft bgs
                              -:_:_ ~--- -::                                                                                                  Well Screen Sand {SW), very pale brown 10YR 8/3 and white 5R 8/1, medium to coarse                     5.5 -15.5 ft bgs grained, little silt, loose, saturated, n.

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WELL NUMBER W-76 ASCOM TOTAL DEPTH 15 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/29/2019 COMPLETED 06/29/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 745181.19 NORTHING 2024223.52 DRILLING EQUIPMENT _G_P_8_1_4_0_LS _ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 137.04 ft CASING ELEVATION 136.85 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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w 0:: (!) I [ij Asphalt Well Casing None: soft-cleared with vacuum truck to 6' Diameter: 2 in 0-5 ft bgs Backfill Type: Cement / Bentonite Grout 0-1.5 ft bgs

                             -:*: ~- ;: 6.00   Silty Sand (SM), white 2.5Y 8/1 and yellow 2.5Y 7/6, coarse grained, trace                   Well Seal
                             ......            gravel                                                                                       Type: Bentonite
                             .......                                                                                                        1.5-3 ft bgs 8.00   Sandy Silt (ML), white 2.5Y 8/1 and yellow 2.5Y 7/6, fine to coarse grained,                 Filter Pack trace gravel                                                                                 Type: #2 Filter 35.5 Sand 3-15ft bgs Well Screen 5 -15 ft bgs n.

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WELL NUMBER W-77 ASCOM TOTAL DEPTH 15.5 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 09/18/2019 COMPLETED 09/18/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 745158.93 NORTHING 2024346.11 DRILLING EQUIPMENT _G_P_6_6_2_0_D_T_ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 136.85 ft CASING ELEVATION 136.53 ft DRILLING METHOD _G_e_o~p_ro_be/_H_S_A_ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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 ~                                                                                                                                                            Bentonite Grout 0-1.5 ft bgs i==                                            Sand (SP), light brown 7.5YR 6/3, fine grained, poorly graded
 ~

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                                                                                                                                                                   -15.5ft bgs
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WELL NUMBER W-78 ASCOM TOTAL DEPTH 16 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 09/19/2019 COMPLETED 09/19/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 745117.75 NORTHING 2024371.03 DRILLING EQUIPMENT _G_P_6_6_2_0_D_T_ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 136.75 ft CASING ELEVATION 136.31 ft DRILLING METHOD DPT/HSA HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(!) I 0 [ij Sand (SP), Fill, pale brown 10YR 6/3, fine grained, few clay, poorly graded, 136.8 damp Well Casing Diameter: 2 in 0-5.5 ft bgs Backfill Type: Cement / Bentonite Grout 0-2 ft bgs Sand (SP) light yellowish brown 10 YR 6/4, fine to coarse grained, few clay, well graded, wet at 9 ft. Well Seal Type: Bentonite 00 2-3 ft bgs Filter Pack Type: #2 Filter 1111111' Sand

                             *: *: *: *1-1-0.-00--s-a_n_d_(S_W_)_,-ve_ry_pa-le-br_ow_n_1O-Y-R-7/-3-,f-in-e-to_coa

__ rs_e_g-ra-in_ed_,t-ra-ce-cl-ay-,-w-e-11-+------< 3-16 ft bgs graded, saturated Well Screen 5.5 -15.5 ft bgs n. (!) 0

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WELL NUMBER W-79 ASCOM TOTAL DEPTH 15.5 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/29/2019 COMPLETED 06/29/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 745200.4 NORTHING 2024450.27 DRILLING EQUIPMENT _G_P_8_1_4_0_LS _ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 136.49 ft CASING ELEVATION 136.12 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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_j_ 136.0 Well Casing 0.50 None: soft-cleared with vacuum truck to 5' Diameter: 2 in _____L_ 0-5.5 ft bgs ____L_ i( .. .. Backfill

<!! ____!_                                                                                                                                                                                                                                                                .. *::-. .       Type: Cement /

i ___§_ 46.9 :::* Bentonite Grout i==

 ~ __L 5.00       Sandy Silt {ML), white 2.5Y 8/1 and reddish yellow 5YR 6/8, fine grained,                                                                                                           131.5 ( ::             =:\        0-2 ft bgs 00~,~poo_r~ly~g~r_ad_e_d_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~r 13o.5 :*:= *:. Well Seal
                                                 * ......-6.-
                                  . ,._.....,l;"....
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Type: Bentonite i ___JL_ Sandy Silt {ML), white 2.5Y 8/1 and Yellow 2.5Y 7/6, fine grained, poorly graded

                                                                                                                                                                                                                                                                                =}:        2-3 ft bgs ii:

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g_o_o__S_i_lty_S_a_n_d_{_S_M_),-w-h-it_e_2_.5_Y_8_/_1_a_nd-Y-el-low-2-.5-Y-7/_6_,_m_ed_i-um-to_coa_rs_e_ _ _1_2_7.---<5 :.-. *.

grained, trace gravel

                                                                                                                                                                                                                                                                                =  *.-.:.-
                                                                                                                                                                                                                                                                                =*:.*

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 ~     -                          , - . , . + , , - + - , - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - * * *. -                                                                                                                                                    ::. *. Well Screen
§?         13                      <).): 12.00                       Sand {SP), reddish yellow 7.5YR 7/8, coarse grained, little silt                                                                                                                    124.5 *. *:= ... 5.5 -15.5 ft bgs
 ~-                                                                                                                                                                                                                                                                             =*.\
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28.1 ~ ~

                                       ~ ~                           dark red 2.5YR 3/6, trace fine sand, stiff, slightly plastic                                                                                                                                       : *."*.
                                                                                                                                                                                                                                                                                =
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WELL NUMBER W-80 ASCOM TOTAL DEPTH 16 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/29/2019 COMPLETED 06/29/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 745024.39 NORTHING 2024414.69 DRILLING EQUIPMENT _G_P_8_1_4_0_LS _ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 136.34 ft CASING ELEVATION 135.87 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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w 0:: (!) I [ij 0.00 Asphalt Well Casing 0.50 None: soft-cleared with vacuum truck to 5' Diameter: 2 in 0-5.5 ft bgs Backfill Type: Cement / 446.9 Bentonite Grout 0-1.5 ft bgs 5.00 Silty Clay (CL-ML), reddish yellow 7.5YR 7/8 and light gray 7.5YR 7/1 and red 2.5YR 5/8, trace fine sand, stiff, slightly plastic Well Seal Type: Bentonite

                             -:*: ~- ;: 7.00    Silty Sand (SM), light gray 5YR 7/1 and reddish yellow 5YR 6/8, fine to                      1.5-3.1 ft bgs
                             ......             coarse grained, trace gravel, well graded
                             .. : .,.                                                                                                        Filter Pack 69.4 ?\\

Type: #2 Filter Sand

                             -:: ; . -:=                                                                                                     3.1-16 ft bgs 11.50  Sandy Silt (ML), light gray 5YR 7/1 and reddish yellow 5YR 6/8, fine to coarse               Well Screen grained sand, trace gravel                                                                   5.5 -15.5 ft bgs n.

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WELL NUMBER W-81 ASCOM TOTAL DEPTH 16 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/29/2019 COMPLETED 06/29/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 744938.6 NORTHING 2024469.85 DRILLING EQUIPMENT _G_P_8_1_4_0_LS _ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 136.81 ft CASING ELEVATION 136.43 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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w 0:: (!) I [ij 0.00 Asphalt Well Casing 0.50 None: soft-cleared with vacuum truck to 5' Diameter: 2 in 0-5.5 ft bgs Backfill Type: Cement / 480.3 Bentonite Grout 0-1.5 ft bgs Well Seal Type: Bentonite 1.5-3.5 ft bgs Filter Pack Type: #2 Filter Sand 3.5-16 ft bgs Well Screen 5.5 -15.5 ft bgs n. (!) 0

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WELL NUMBER W-82 ASCOM TOTAL DEPTH 15.5 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/29/2019 COMPLETED 06/29/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 744895.93 NORTHING 2024594.17 DRILLING EQUIPMENT _G_P_8_1_4_0_LS _ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 136.57 ft CASING ELEVATION 136.23 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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w 0:: (!) I [ij o.oo None: soft-cleared with vacuum truck to 5' Well Casing Diameter: 2 in 0-5.5 ft bgs Backfill Type: Cement / Bentonite Grout 0-1.5 ft bgs

                               -:*: ~- ;: 5.00           Silty Sand (SM), GLEY 1 8/N and very pale brown 10YR 7/3, fine to medium
                               ......                    grained, hard, dry
                               .. : .,.                                                                                                              Well Seal
                               -:_: .. * * * . t - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + - - - - - - <                           Type: Bentonite Silty Sand (SM), dark brown 10YR 3/3, fine to medium grained, grass, dry,                   1.5-3.5 ft bgs hard Silty Sand (SM), GLEY 1 8/N and very pale brown 10YR 7/3, fine to medium                    Filter Pack grained, hard, dry                                                                          Type: #2 Filter
                               -:*: ~. ;: 9.5o           Sandy Clay (CL), light gray 10YR 7/1 and brownish yellow 10YR 6/6, fine to                  Sand 3.5-15 ft bgs
                               ...-:* :::: :-:*.,.       coarse grained, little angular gravel, dense, dry

_.. : * :: Silty Sand (SM), gray 10YR 6/1 and brownish yellow 10YR 6/8, fine to coarse Well Screen

                               ?*
                               .. :"=:: ::.,.: 12.00 ~   grained, coarsening downward
                                                            ~----~------------------~                                                                5.5 -15.5 ft bgs
                               -:: ; * ;:                Silty Sand (SM), gray 10YR 6/1 and brownish yellow 10YR 6/8, fine to coarse
                               ......                    grained, little angular gravel
                               -:_:_  ~--- -::

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WELL NUMBER W-83 ASCOM TOTAL DEPTH 26.5 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/29/2019 COMPLETED 06/29/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 744975.06 NORTHING 2024667.49 DRILLING EQUIPMENT _G_P_8_1_4_0_LS _ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 136.22 ft CASING ELEVATION 135.81 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S li::2 a. w 6 .eClii: a.o MATERIAL DESCRIPTION C: w- :!!: 0

                             ~...J Cl     c'5   (.)

w 0:: (!) I [ij Asphalt Well Casing None: soft-cleared with vacuum truck to 5' Diameter: 2 in 0-16.5 ft bgs Backfill Type: Cement / Bentonite Grout 0-8.2 ft bgs Clayey Sand (SC), gray 10YR 6/1, fine to coarse grained, few silt, well graded 7.00 Silty Clay (CL), brownish yellow 10YR 6/8 and light gray 2.5YR 7/1, plastic, stiff Well Seal Type: Bentonite 8.2-13.2 ft bgs Filter Pack Type: #2 Filter Sand 13.2-26.5 ft bgs Well Screen 16.5 -26.5 ft bgs

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WELL NUMBER W-84 ASCOM TOTAL DEPTH 22 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/30/2019 COMPLETED 06/30/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 745177.25 NORTHING ~2=0=24~7~2~1-~5_ _ _ __ DRILLING EQUIPMENT _G_P_8_1_4_0_LS _ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 136.66 ft CASING ELEVATION 135.99 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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                                   ~...J Cl     c'5   (.)

w 0:: (!) I [ij Asphalt Well Casing None: soft-cleared with vacuum truck to 5' Diameter: 2 in 0-11 ft bgs Backfill Type: Cement / 50.4 Bentonite Grout 0-5 ft bgs

                              -:*: ~- ;: 5.00             Silty Sand (SM), reddish gray 2.5YR 5/1 and reddish yellow 5YR 6/8, fine to
                              ......                      medium grained Well Seal Type: Bentonite 7.00    Clayey Silt (MH), light gray 5YR 7/1 and red 2.5YR 5/8, little fine grained                          5-8.5 ft bgs sand, medium stiff
                              -:*: ~- ;: 8.00 Silty Sand (SM), gray 5YR 6/1 and yellowish red 5YR 5/6, fine to coarse                              Filter Pack 71.2  r:~--:::
                              -:: ; . -:=

grained, well graded Type: #2 Filter Sand

                              ....:**:*-.*                                                                                                                     8.5-22 ft bgs
                              -:: ; . -:=                                                                                                                      Well Screen
                              .. : .,.                                                                                                                         11 -21 ft bgs
                              -:: ; . -:=

84 .1 :.:.*:. :~-:.. /*. 14.00 Silty Sand (SM), yellowish red 5YR 5/6, and light gray 5YR 7/1, coarse 15_00 ~g~ra_in_e_d_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~ Clayey Silt (MH), bluish gray GLEY 2 5/1, elastic, trace fine mica, very soft 18.00 Silty Clay (CL-ML), light gray 2.5YR 7/1 and brownish yellow 10YR 6/8 and red 7.5R 4/8, plastic, stiff

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WELL NUMBER W-85 ASCOM TOTAL DEPTH 50 FT BGS PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/11/2019 COMPLETED 06/11/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 745079.71 NORTHING 2025107.68 DRILLING EQUIPMENT _G_P_8_1_4_0_LS_ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 135.74 ft CASING ELEVATION 138.69 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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       !     6      Cl  ~ ...J                                                                                          0 0 ft bgs

(..) w 0:: ii: (!) I [ij 0.00 Silty Clay (CL-ML), reddish yellow 7.5YR 6/8 and brown 7.5YR 5/2, mottled, 135.7 few sand, dry Well Casing Diameter: 2 in 0-40 ft bgs Backfill Type: Cement / 0.3 Bentonite Grout 0-35 ft bgs 9.00 Clay (CH), reddish yellow 7.5YR 6/8 and brown 7.5YR 5/2, high plasticity, 126.7 5.1 few silt, hard 0.7 9.5 Silty Sand (SM), tan and gray, fine to medium grained, interbedded 109.7 Clayey Sand (SC), brown and gray, fine to medium grained 107.7 0.3 Silty Sand (SM), medium to coarse grained, subrounded to rounded cobbles 106.7 30.00 Clay (CH), gray 5Y 5/1, high plasticity 105.7 (Continued Next Page)

WELL NUMBER W-85 ASCOM TOTAL DEPTH 50 FT BGS PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

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                               -:: ; . -:=
                               -:: ; . -:=                                                                                                 Filter Pack
                               ......                                                                                                      Type: #2 Filter
                               .. : .,.                                                                                                    Sand
                               -:: ; . -:=
                               ....:**:*-.*                                                                                                37-50 ft bgs
                               -:: ; . -:=                                                                                                 Well Screen
                               ......                                                                                                      40 -45 ft bgs
                               -:_:_  ~--- -::

Sand (SW), medium to coarse grained, few silt, few angular to subangular 93.7 gravel 92.7 Clay (CH), dark gray 5Y 2.5/1, very compact, dry n. (!) 0

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WELL NUMBER W-86 ASCOM TOTAL DEPTH 35 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/11/2019 COMPLETED 06/11/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 745082.29 NORTHING ~2=0=25~1~0~0-~8_ _ _ __ DRILLING EQUIPMENT _G_P_8_1_4_0_LS _ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 135.68 ft CASING ELEVATION 138.77 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Elliot Harrington CHECKED BY Jeremy Grant CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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       !     6     Cl    ~ ...J                                                                                         0 0 ft bgs

(..) w 0:: ii: (!) I [ij 0.00 Silty Clay (CL-ML), reddish yellow 7.5YR 6/8 and brown 7.5YR 5/2, mottled, 135.7 few sand, dry Well Casing Diameter: 2 in 0-25 ft bgs Backfill Type: Cement / Bentonite Grout 0-20 ft bgs 9.00 Clay (CH), reddish yellow 7.5YR 6/8 and brown 7.5YR 5/2, high plasticity, 126.7 few silt, hard Well Seal Type: Bentonite 20-22 ft bgs Filter Pack Type: #2 Filter Sand 22-35 ft bgs Well Screen 25-35 ft bgs Silty Sand (SM), tan and gray, fine to medium grained, interbedded Clayey Sand (SC), brown and gray, fine to medium grained Silty Sand (SM), medium to coarse grained, subrounded to rounded cobbles 30.00 Clay (CH), gray 5Y 5/1, high plasticity Bottom of borehole at 35 feet.

WELL NUMBER W-87 ASCOM TOTAL DEPTH 34 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/30/2019 COMPLETED 06/30/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 745952.76 NORTHING 2024385.81 DRILLING EQUIPMENT _G_P_8_1_4_0_LS _ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 136.66 ft CASING ELEVATION 136.39 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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w 0:: (!) I [ij Asphalt Well Casing None: soft-cleared with vacuum truck to 5' Diameter: 2 in 0-28 ft bgs Backfill Type: Cement / Bentonite Grout 0-22 ft bgs

                       -:*: ~- ;: 7.00          Silty Sand (SM), white 10YR 8/1 and very pale brown 10YR 8/3, fine to
                       ......                   coarse sand, little silt
                       -:: ; . -:=
                       -:: ; . -:=
                       -:: ; . -:=
                       -:: ; . -:=

0.2

                       -:: ; . -:=
                       -:_:_  ~--- -::

Sand (SW), pale brown 2.5Y 8/3, medium to coarse grained, few silt, trace gravel 1700 1

o. 1111111 Well Seal

                       -:*: ~- ;: 22.00         Silty Sand (SM), pale brown 2.5Y 8/3 and white 10YR 8/1 and brownish                       Type: Bentonite
                       ......                   yellow (trace) 10YR 6/10, coarse grained, few gravel, trace cobbles,                       22-25 ft bgs
                       .......                  subrounded to rounded 0.1  rroo                     Sand (SW), pale brown 2.5Y 8/2, medium to coarse grained, few silt                         Filter Pack Type: #2 Filter Sand 25-34 ft bgs
                       -:*: ~ * ;: 27.00        Silty Sand (SM), light gray 5YR 7/1, and reddish yellow 5YR 6/6, medium to
                       ......                   coarse grained, little gravel, subrounded                                                  Well Screen
                       .......                                                                                                             28 -33 ft bgs Sand (SW), red 2.5YR 4/6, fine to coares grained, few gravel, trace silt, subangular to rounded Sand (SW), red 2.5YR 4/6, medium to coarse grained, few gravel, trace silt, few gravel, trace cobbles, subangular to rounded Silty Clay (CL-ML), reddish gray 5YR 5/2 and reddish yellow 7.5YR 6/6, stiff

WELL NUMBER W-88 ASCOM TOTAL DEPTH 45 FT BGS PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/17/2019 COMPLETED 06/17/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 746574.77 NORTHING 2022883.96 DRILLING EQUIPMENT _G_P_8_1_4_0_LS _ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 140.06 ft CASING ELEVATION 143.1 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S Well Casing li::2 a. w .e a.o Diameter: 2 in MATERIAL DESCRIPTION C: w- :!!: 6 Cl ~...J 0 0 ft bgs Cl c'5 (.) w 0:: ii: (!) I [ij o.oo Silt (ML), yellowish brown 10YR 5/8, medium stiff, low plasticity, moist Well Casing Diameter: 2 in 0-36.5 ft bgs Backfill Type: Cement / Bentonite Grout 0-31 ft bgs Sand (SW), yellow 2.5Y 7/8 and pale brown 2.5Y 7/4, fine to medium grained, well graded, moist Sand (SW), pale brown 2.5Y 7/4, fine to medium grained, well graded, moist Silt (ML), gray 2.5Y 6/1, soft, low plasticity, moist

                                      *:*:*:* 20.50            Sand (SW), light gray 2.5Y 7/2, fine to medium grained, wet 0

0 0 0

                                         ... 2-5.-00--~-!-~-~-~~--V:-al-~-~~-t~-t-gr_a_y-10_Y_R-6/_1_,f-in-e-to_coa rmt-0    0    0   0 0    0    0   0

__ rs_e_g-ra-in_ed_,-t-ra_ce_co_b_b_les-,-w-e_ll_ _ __,,_ Sand (SW), brownish yellow 10YR 6/6, fine to coarse grained, trace cobbles, ...J trace cobbles, saturated 3: 0 z !:!:!roo ~I 30.50 Silty Clay (CL), light yellowish brown 10YR 6/4, little silt, stiff, high plasticity Well Seal g Type: Bentonite 31-34 ft bgs I

-: *: ~ * ;: 33.00 Silty Sand (SM), gray 10YR 6/1, fine grained, little silt, wet Filter Pack 8 _-:* ::: :-: Type: #2 Filter

!;l!i......a=-_.__ _...,___...,___..._*.-..........

                                             .-.'"'"~-.....__ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ___,__ ___.....;..:.J___J'---"---S_a_nd_ _ _ __.

(Continued Next Page)

WELL NUMBER W-88 ASCOM TOTAL DEPTH 45 FT BGS PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

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                                                                                                                                       .;. . Well Screen Sand (SW), light gray 1OYR 7/1, fine to coarse grained, few cobbles, trace  103.6 :: :             -:

36.5 -41.5 ft bgs gravel, well graded Clay (CL), black 1OYR 2/1, very stiff, low plasticity, few silt, dry ..............

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WELL NUMBER W-89 ASCOM TOTAL DEPTH 29 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/13/2019 COMPLETED 06/13/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 746583.34 NORTHING 2022888.25 DRILLING EQUIPMENT _G_P_8_1_4_0_LS _ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 140.12 ft CASING ELEVATION 142.82 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Elliot Harrington CHECKED BY Jeremy Grant CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S Well Casing li::2 a. w .e a.o C: Diameter: 2 in MATERIAL DESCRIPTION w- :!!: 6 Cl ~...J 0 0 ft bgs Cl c'5 (.) w 0:: ii: (!) I [ij 0.00 Silt (ML), light brown, few sand, medium stiff 140.1 Well Casing 1.00 Silty Clay (CL-ML), light brown to dark brown, mottled, stiff, mostly clay, little 139.1 Diameter: 2 in silt, moist 0-15.5 ft bgs Silt (ML), light brown, medium stiff, mostly silt, trace sand, moist 137.6 Backfill Type: Cement / 0.0 Bentonite Grout 0-9.5 ft bgs Clayey Sand (SC), yellow 10YR 7/6, mostly sand, little clay, medium dense, 132.1 moist Well Seal Type: Bentonite Sand (SW), yellowish brown and orangish red, mostly fine to medium 130.1 9.5-13 ft bgs grained, trace coarse sand, medium dense, moist Filter Pack Type: #2 Filter Sand 13-29 ft bgs 0.0 Well Screen 15.5 -25.5 ft bgs

WELL NUMBER W-90 ASCOM TOTAL DEPTH 44 FT BGS PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/13/2019 COMPLETED 06/13/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 745981.12 NORTHING 2022011.55 DRILLING EQUIPMENT _G_P_8_1_4_0_LS _ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 140.23 ft CASING ELEVATION 143.33 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Elliot Harrington CHECKED BY Jeremy Grant CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S Well Casing li::2 a. w .e a.o C: Diameter: 2 in MATERIAL DESCRIPTION w- :!!: 6 Cl ~...J 0 0 ft bgs Cl c'5 (.) w 0:: ii: (!) I [ij o.oo Silt (ML), brownish red 2.5YR 4/6, mottled, stiff, trace clay, dry Well Casing Diameter: 2 in 0-35 ft bgs 3.00 Sandy Silt {ML), brownish red 2.5YR 4/6, mottled, little fine sand, trace Backfill coarse sand, medium stiff Type: Cement / Bentonite Grout 0-30 ft bgs

                        -:*: ~- ;: 7.00             Silty Sand {SM), brownish red 2.5YR 4/6, some silt, loose, dry
                        -:: ; . -:=
                        -:: ; . -:=

12.00 Silty Clay {CL), light brown 7.5YR 6/6, very stiff, some silt, dry Silty Sand {SM), light brownish orange 10YR 7/2, mottled, fine grained, some 14 _00 ~s_ilt_,_m_ed_i_u_m_d_e_ns_e_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~ Silt {ML), light brownish orange 10YR 7/2, medium stiff, few fine sand, dry

                        <):\               15.00 Sand {SP), light brown 10YR 7/2, fine grained, very loose, moist 16.00    Sandy Silt {ML), light brown 10YR 7/2, some fine sand, loose, moist Sand {SP), white 2.5Y 8/1, fine grained, very loose, moist Sand (SP), pale brown, fine grained, very loose, moist Well Seal Type: Bentonite 30-32 ft bgs Clay (CH), pale brown 2.5Y 8/3, high plasticity, trace sand, stiff, moist Sand (SP), dark gray to orange to light brown, banded, fine grained, loose,                  Filter Pack moist                                                                                        Type: #2 Filter Sand 32-44 ft bgs (Continued Next Page)

WELL NUMBER W-90 ASCOM TOTAL DEPTH 44 FT BGS PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

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                               --     -       35.00      Organic Silt (OL), black to dark brown, medium stiff, trace fine sand, trace   105.2
                                                                                                                                                .. -       :-: we11 ~creen
       ~                                  -                                                                                                   -::-. = :::-. 35-40 ft bgs
                               --     -   -              organic matter, moist                                                                 ... - ..
                               --     -                                                                                                       .... =       *:.*

_))_

                                          -                                                                                                   -::-. = :::-.
       ~                       -      -
                               -:: ; * ;: 38.00          Silty Sand (SM), pale gray 2.5Y 7/1, fine grained, some silt, trace clay,      102.2  . *: -
       ~                        :**:*-.*.                                                                                                     .... = - ..  *:.*

medium dense : *- :-:

       ~
                               -:_:_ ~--- -::
                                                                                                                                              *._:_.._.~:--:*
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Sand (SW), light gray, fine to medium grained, trace coarse sand trace fine 42.00 \ gravel, trace silt, loose, wet Silty Clay (CL-ML), gray, stiff, some silt, trace mica, dry 99.2 1982 SJ 0

~                                                                                   Bottom of borehole at 44 feet.

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WELL NUMBER W-91 ASCOM TOTAL DEPTH 25 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/13/2019 COMPLETED 06/13/2019 SURVEYING BY/DATE AECOM/ 10-21-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 745976.36 NORTHING 2022016.77 DRILLING EQUIPMENT _G_P_8_1_4_0_LS _ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 139.57 ft CASING ELEVATION 142.81 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Elliot Harrington CHECKED BY Jeremy Grant CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S Well Casing li::2 a. w .e a.o C: Diameter: 2 in MATERIAL DESCRIPTION w- :!!: 6 Cl ~...J 0 0 ft bgs Cl c'5 (.) w 0:: ii: (!) I [ij o.oo Silt (ML), brownish red 2.5YR 4/6, mottled, stiff, trace clay, dry 139.6 Well Casing Diameter: 2 in 0-15ft bgs 3.00 Sandy Silt {ML), brownish red 2.5YR 4/6, mottled, little fine sand, trace 136.6 Backfill coarse sand, medium stiff Type: Cement / Bentonite Grout 0-11 ft bgs

                                -:*: ~- ;: 7.00             Silty Sand {SM), brownish red 2.5YR 4/6, some silt, loose, dry                 132.6
                                -:: ; . -:=
                                -:: ; . -:=

- - -.*. Well Seal

                                .. : .,.                                                                                                                 Type: Bentonite
                                .......                                                                                                                  11-13 ft bgs 12.00    Silty Clay {CL), light brown 7.5YR 6/6, very stiff, some silt, dry             127.6 Silty Sand {SM), light brownish orange 10YR 7/2, mottled, fine grained, some                 Filter Pack Type: #2 Filter 14 _00 ~s_ilt_,_m_ed_i_u_m_d_e_ns_e_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~                               Sand Silt {ML), light brownish orange 10YR 7/2, medium stiff, few fine sand, dry                  13-25 ft bgs
                                <):\               15.00 Sand {SP), light brown 10YR 7/2, fine grained, very loose, moist 16.00    Sandy Silt {ML), light brown 10YR 7/2, some fine sand, loose, moist                          Well Screen 15 -25 ft bgs
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WELL NUMBER W-92 ASCOM TOTAL DEPTH 37 FT BGS PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 06/12/2019 COMPLETED 06/12/2019 SURVEYING BY/DATE AECOM/ 10-02-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 744382.47 NORTHING 2023714.92 DRILLING EQUIPMENT _G_P_8_1_4_0_LS _ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 120.11 ft CASING ELEVATION 123.33 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Elliot Harrington CHECKED BY Jeremy Grant CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S Well Casing li::2 a. w .e a.o Diameter: 2 in MATERIAL DESCRIPTION C: w- :!!: 6 Cl ~...J 0 0 ft bgs Cl c'5 (.) w 0:: ii: (!) I [ij o.oo Clayey Silt (MH), brown 7.5YR 4/4, stiff, little clay, trace fine sand, moist 120.1 Well Casing Diameter: 2 in 0-29 ft bgs Backfill Type: Cement / 0.3 Bentonite Grout 0-24 ft bgs 0*5 i,e,:,~t:9:--:_5=-=o--s:::ci:::-lty-C-:::::-la-y7(C:::cL--:-M::-L:-),-g-ra-y--=G::-:L--:E:::-Y:-:1--:5::-:l1:-:0::-,-m-ed--::-iu-m-s--=t::ciff=-,-so_m_e_s--:i::-lt,--=t-ra-ce----=-fin_e_ _--tc1--:1-=--o.-:i6 sand, trace mica 14.00 Silt (ML), brown 2.5Y 5/2, medium stiff, few clay, trace very fine sand, trace 106.1 0.2 mica, moist

                                                          -:*: ~- ;: 16.00        Silty Sand (SM), gray 2.5Y 7/1, fine grained, some silt, trace mica, medium                                                                                           104.1
                                                          ......                  dense, wet Clay (CH), dark gray 2.5Y 4/1, medium stiff, high plasticity, few silt, trace                                                                                         102.1 mica, moist 0.3 Well Seal Type: Bentonite 0.2                                                                                                                                                                                                                           24-27 ft bgs Filter Pack Type: #2 Filter Sand (SP), light gray 2.5Y 6/1, trace silt, trace mica, loose, moist                                                                                                   93.1 Sand

...J 27-37 ft bgs 3: 0 z 0.2 Well Screen 29 -34 ft bgs Silty Clay (CL-ML), gray 2.5Y 6/1, medium stiff, some silt, trace fine sand, 90.1 ~I trace mica, moist g Sand (SP), light gray 2.5Y 6/1, trace mica, very loose, moist 89.1 I en 8 Sand (SP), light gray 2.5Y 6/1, some subrounded to rounded gravel, trace ....... . !;l!i::.....:~.:i...--...J...-...J..._o_.3....J.:1=w...a..i.~~mill:ica:5!a....ve=1:..al!l:::oos=e:a....!..!.mil:::o!llis~t -----------------L..L..=.:....i.;._,_....;...*..:*:;....-*1...-_ _ _ _ ____. (Continued Next Page)

WELL NUMBER W-92 TOTAL DEPTH 37 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

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WELL NUMBER W-93 ASCOM TOTAL DEPTH 40 FT BGS PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 09/18/2019 COMPLETED 09/18/2019 SURVEYING BY/DATE AECOM/ 10-01-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 745162.26 NORTHING 2024346.84 DRILLING EQUIPMENT _G_P_6_6_2_0_D_T_ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 136.87 ft CASING ELEVATION 136.49 ft DRILLING METHOD _G_e_o~p_ro_be/_H_S_A_ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S li::2 a. w 6 .eClii: a.o MATERIAL DESCRIPTION C: w- :!!: 0

                                                   ~...J Cl           c'5       (.)

w 0:: (!) I [ij Asphalt Well Casing None: soft-cleared with vacuum truck to 5' Diameter: 2 in 0-30.5 ft bgs Backfill Type: Cement / Bentonite Grout 0-25 ft bgs Sand (SP), light brown 7.5YR 6/3, fine grained, poorly graded

                                              -:*: ~- ;: 6.00             Silty Sand (SM), strong brown 7.5YR 5/8 and light gray 10YR 7/1, fine
                                              ......                      grained, poorly graded
                                              -:: ; . -:=

1.3 -:_:_ ~--- -:: Sand (SW), white 10 YR 8/1, medium to coarse grained, little silt, well graded 126.9 1000 1111111 Silty Sand (SM), white 2.5Y 8/1, medium to coarse grained Clay (CH), white 10YR 8/1 and strong brown 7.5YR 5/6, highly plastic, few silt Clayey Silt (MH), light gray 10 YR 7/1 and strong brown 7.5YR 5/6 and red 7.5R 4/8, few fine sand -, 0.0 ~ Silty Sand (SM), gray 5YR 6/1 and yellow 1OYR 7/6, fine to coarse grained, ~ well graded ~ Clayey Sand (SC), strong brown 7.5YR 5/8 and white 10YR 8/1, fine grained 1!: z Clay (CL), white 10YR 8/1 and strong brown 7YR 5/8 and red 10YR 5/8, ~ -:*: ~- ;: 23 _00 '--d_e_ns_e-'-,_m_e_d_iu_m_,p_las_ti_ci"""ty-'-,f_ew_s_il_t_ _ _ _ _ _ _ _ _ _ _ _ ___, ~ :* *:* .. *. Sand (SM), reddish yellow 7.5YR 6/8, fine to medium grained, coarsening ~ 0.2 :: *.: *; downward, few coarse grained @ 31-32', fine to medium grained

1 -:: ;* ;: Well Seal

~I ."*'."**.*. Type: Bentonite 25-27 ft bgs It :i: / / 26.00 Sand (SM), reddish yellow 7.5YR 6/8, fine to medium grained, few coarse ~1 ( :~:) 27 _00 ~g~ra_in_e_d_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~ Filter Pack

                                              -:: ; * ;:                  Silty Sand (SM), white N/9.5 changing downward to pale orange yellow 10YR                       Type: #2 Filter

_-

* :=: :-: 9/2, fine to coarse grained, trace subangular gravel, well graded Sand 0 .. : .,. 27-35 ft bgs z 0.0 -:: ;* ;:

X _.:*::::-:* Well Screen ~ ~{~ 30.5 -35.5 ft bgs g :**:*-.*. I

i: / / 32.00 Silty Sand (SM), reddish yellow 5YR 6/8, medium to coarse grained, few

( :~:) 33 _00 '--s_u_br_o_un_d_e_d_to_ro_u_nd_e_d_,g~ra_ve_la_n_d_co_b_bl_es_ _ _ _ _ _ _ _ _ _ _~ 8 -:: ;* ;: Silty Sand (SM), reddish yellow 7.5YR 7/6, fine to coarse grained, loose 00 :**:*-.*. !;l!i::.....:~.:l....--...J...-....1..-*....J:..""...t."..J"'"". ".L----------------------------.L--.L-.:.J_...J...:...J...______ ..J (Continued Next Page)

WELL NUMBER W-93 ASCOM TOTAL DEPTH 40 FT BGS PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

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                                ~...J Cl     c'5   (.)        (!)
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WELL NUMBER W-94 ASCOM TOTAL DEPTH 29.5 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 09/17/2019 COMPLETED 09/17/2019 SURVEYING BY/DATE AECOM/ 10-03-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 744728.03 NORTHING 2021983.56 DRILLING EQUIPMENT _G_P_8_1_4_0_LS _ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 115.28 ft CASING ELEVATION 118.04 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S Well Casing li::2 a. w .e a.o Diameter: 2 in MATERIAL DESCRIPTION C: w- :!!: 6 Cl ~...J 0 0 ft bgs Cl c'5 (.) w 0:: ii: (!) I [ij 0.00 Silt (ML), brown 10YR 4/3, soft, moist Well Casing Diameter: 2 in 0-24.5 ft bgs Backfill Type: Cement / Bentonite Grout 0-19 ft bgs Sand (SP), grayish brown 10YR 5/2, fine grained, few silt, poorly graded, saturated Sand (SP), brown 10YR 4/3, fine grained, few silt, poorly graded, saturated Sand (SW), yellowish brown 10YR 5/6, fine to medium grained, few silt, well graded, saturated Sand (SW), pale brown 2.5Y 7/3, fine to coarse grained, well graded, saturated Well Seal Sand and Cobbles (SW), gray 2.5Y 4/1, medium grained to cobbles, well Type: Bentonite graded, saturated 19-22 ft bgs

                       -:*: ~- ;: 20.00

- - -.*. _ _ _ _ _ _ _ _~

                                               ~S_an_d~y_S_ilt_(~M_L~),_v,_ery~d_ar_k~g~ra~yi_*s_h_b_row_n_,s_oft_,w_et

*.: *; Silty Sand (SM), dark grayish brown 2.5Y 4/2, fine grained, little silt, saturated Filter Pack 16.9 ?\\

Type: #2 Filter Sand 22-29.5 ft bgs

                       -:: ; . -:=

Well Screen

                       -:: ; . -:=                                                                                                                    24.5 -29.5 ft bgs
                       ******* 26.50             Sand (SW), light gray 5Y7/1, fine to medium grained, few silt, well graded, 19 7 °                         saturated
                       /}

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WELL NUMBER W-95 ASCOM TOTAL DEPTH 33.5 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 09/17/2019 COMPLETED 09/17/2019 SURVEYING BY/DATE AECOM/ 10-03-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 744375.66 NORTHING 2022553.46 DRILLING EQUIPMENT _G_P_8_1_4_0_LS _ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 113.53 ft CASING ELEVATION 116.4 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S Well Casing li::2 a. w .e a.o C: Diameter: 2 in MATERIAL DESCRIPTION w- :!!: 6 Cl ~...J 0 0 ft bgs Cl c'5 (.) w 0:: ii: (!) I [ij o.oo Silt (ML), strong brown 7.5YR 5/6, stiff, soft, few clay, moist 113.5 Well Casing Diameter: 2 in 0-28.5 ft bgs Backfill Type: Cement / Bentonite Grout 0-22 ft bgs 5.00 Clayey Silt {MH), yellowish brown 10YR 5/8, soft, damp 108.5 7.00 Silt {ML), yellowish brown 10YR 5/8, soft, moist 106.5 9.00 Silt {ML), dark yellowish brown 10YR 4/6, soft, saturated 104.5 Sand {SP), 10YR 5/8, medium grained, poorly graded, saturated 101.0 n. I Sand (SW), yellowish brown 10YR 5/8, fine to medium grained, well graded, 93.5 saturated Well Seal i!i!iroo Type: Bentonite 22-25.6 ft bgs Sand (SW), light yellowish brown 10YR 6/4, fine to coarse grained, well 89.5 graded, saturated Filter Pack Type: #2 Filter Sand 25.6-33.5 ft bgs !: !i!i!roo Well Screen Sand (SW), light gray 2.5Y 7/1, fine to coarse grained, well graded, saturated 28.5 -33.5 ft bgs 00 i' iiiiiii ~

F--"'----'----'---~--'-'..__----------------------------'----L: .........J___,J.....,_.._______--1 8 Bottom of borehole at 33.5 feet.

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WELL NUMBER W-96 ASCOM TOTAL DEPTH 30.5 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 09/17/2019 COMPLETED 09/17/2019 SURVEYING BY/DATE AECOM/ 10-02-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 743746.78 NORTHING 2024643.81 DRILLING EQUIPMENT _G_P_8_1_4_0_LS _ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 113.65 ft CASING ELEVATION 116.46 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S Well Casing li::2 a. w .e a.o C: Diameter: 2 in MATERIAL DESCRIPTION w- :!!: 6 Cl ~...J 0 0 ft bgs Cl c'5 (.) w 0:: ii: (!) I [ij o.oo Silt (ML), dark yellowish brown 10YR 4/4, medium stiff, trace clay, moist Well Casing Diameter: 2 in 0-25 ft bgs 3.00 Silt (ML), dark yellowish brown 10YR 4/6, soft, micaceous, moist Backfill Type: Cement / Bentonite Grout 0-20 ft bgs Sand (SP), dark yellowish brown 10YR 4/6, fine grained, poorly graded, wet Sand (SW), red 2.5YR 5/6, fine to medium grained, well graded, saturated Sandy Gravel (GP), greenish gray GLEY1 6/1, little coarse grained sand, well graded, saturated Clayey Silt (MH), greenish gray GLEY1 6/1, soft, low plasticity, wet Silty Clay (CL-ML), greenish gray GLEY1 6/1, soft, high plasticity, moist Sand (SW), greenish gray GLEY 1 6/1, medium to coarse grained, few Well Seal

                                 .oo                                            _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~
                                      ~g_ra_v,_el~,w_el~Ig~r_ad_ed~,s_at_u_r_at_ed                                                   Type: Bentonite Sand (SP), grayish brown 5Y 5/2, fine grained, few silt, poorly graded,                     20-23 ft bgs saturated Silty Clay (CL-ML), greenish gray GLEY1 6/1, high plasticity, moist                         Filter Pack Type: #2 Filter Sand 23-30.5 ft bgs Sand (SP), greenish gray GLEY1 5/1, fine grained, poorly graded, wet                        Well Screen 25-30 ft bgs Sand (SW), greenish gray GLEY1 5/1, fine to medium grained, well graded, wet

WELL NUMBER W-97 ASCOM TOTAL DEPTH 19 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 09/17/2019 COMPLETED 09/17/2019 SURVEYING BY/DATE AECOM/ 10-02-19 DRILLING CONTRACTOR _G_e_o_log~ic_Exp~l_or_at_io_n_ _ _ _ _ _ __ EASTING 744244.05 NORTHING 2024547.76 DRILLING EQUIPMENT _G_P_8_1_4_0_LS _ _ _ _ _ _ _ _ _ __ GROUND ELEVATION 113.92 ft CASING ELEVATION 116.93 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S Well Casing li::2 a. w .e a.o C: Diameter: 2 in MATERIAL DESCRIPTION w- :!!: 6 Cl ~...J 0 0 ft bgs Cl c'5 (.) w 0:: ii: (!) I [ij 0.00 Silt (ML), dark yellowish brown 10YR 4/4, soft, moist Well Casing Diameter: 2 in 0-14 ft bgs 2.00 Silty Clay (CL-ML), reddish brown 5YR 4/4, soft, moderate plasticity, moist Backfill Type: Cement / Bentonite Grout 0-8 ft bgs Well Seal Type: Bentonite 8-10.8 ft bgs Sand (SP), very pale brown 10YR 8/4, medium grained, poorly graded, moist Filter Pack to wet Type: #2 Filter Sand 10.8-19 ft bgs Sand (SP), very pale brown 10YR 8/4, medium grained, poorly graded, Well Screen Saturated 14 -19 ft bgs n. (!) 0

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WELL NUMBER W-98 ASCOM TOTAL DEPTH 27 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 01/29/2021 COMPLETED 01/29/2021 SURVEYING BY/DATE AECOM/ 03-30-21 DRILLING CONTRACTOR SAEDACCO EASTING 745190.42 NORTHING 2022894.54 DRILLING EQUIPMENT Geoprobe 8140 LS Sonic GROUND ELEVATION 135.52 ft CASING ELEVATION 138.65 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S Well Casing li::2 a. w .e a.o C: Diameter: 2 in MATERIAL DESCRIPTION w- :!!: 6 Cl ~...J 0 0 ft bgs Cl c'5 (.) w 0:: ii: (!) I [ij

                                       ******* 0.00          Sand (SW), dark reddish brown 2.5YR 3/3, fine to medium grained, few clay,
                                       *:*:*:* 0.50          dry                                                                                                                                 Well Casing Diameter: 2 in Sand (SW), strong brown 7.5YR 5/6, fine to medium, few clay, moist 0-17 ft bgs 12.7 *:*:*:*

Backfill Type: Cement / 0.8 Bentonite Grout 0-13 ft bgs 2.2 Clayey Sand (SC), reddish yellow 7.5YR 6/8 and pinkish gray 7.5YR 7/2, fine to coarse grained, trace to few angular quartz gravel, moist 1.0 1.3 Well Seal Sand (SW), reddish yellow 7.5YR 6/8 and pinkish gray 7.5YR 7/2, fine to Type: Bentonite coarse grained, little clay, moist 13-15 ft bgs 1300 Filter Pack Type: #2 Filter Sand 15-27 ft bgs

1111111

                                       *: *: *: *,-1-8.-00--S-a_n_d_(S_W_)_,-red-di-sh_ye_ll_ow_7_.5_Y_R_6_/8_a_n_d_p_in-k-is-h-gr_a_y_7_.5_Y_R_7_/2-,-tr-ace----+----r                          Well Screen subrounded to rouned gravel, saturated                                                                                              17 -27 ft bgs n.

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 ~                                                 23.00     Sandy Clay (CL), reddish yellow 7.5YR 6/8 and pinkish gray 7.5YR 7/2, fine
 ~                                                           to medium grained, saturated
~ 1                               3 .o                       Clayey Sand (SC), reddish yellow 7.5YR 6/8 and pinkish gray 7.5YR 7/2, fine
~

1 to medium grained, saturated It 2.8 *: *: *:

26.00 Sand (SW), pinkish gray 7.5YR 7/2, fine to coarse grained, little silt, saturated

 ~1i:;..:::.:.....:;i__ _..1-_..1-_.J&..&........1...-_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ___,__                                                         __,_;___:J___Ji.....:.;_J...__ _ _ _ _      --I 3:                                                                                            Bottom of borehole at 27 feet .
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WELL NUMBER W-99 ASCOM TOTAL DEPTH 27 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 01/27/2021 COMPLETED 01/27/2021 SURVEYING BY/DATE AECOM/ 03-30-21 DRILLING CONTRACTOR SAEDACCO EASTING 745123.51 NORTHING 2023640.54 DRILLING EQUIPMENT Geoprobe 8140 LS Sonic GROUND ELEVATION 129.78 ft CASING ELEVATION 133.84 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S Well Casing li::2 a. w .e a.o C: Diameter: 2 in MATERIAL DESCRIPTION w- :!!: 6 Cl ~...J 0 0 ft bgs Cl c'5 (.) w 0:: ii: (!) I [ij o.oo Sandy Silt {ML), red 2.5YR 4/6 and brown 7.5YR 5/3, fine grained, moist 129.8 Well Casing Diameter: 2 in 0-16 ft bgs 0.0 Backfill Type: Cement / 0.1 Bentonite Grout 0-12 ft bgs 5.50 Sandy Clay {CL), reddish yellow 7.5 YR 6/8, red 2.5 YR 4/8 and very pale 124.3 0.1 brown 10 YR 8/4, fine to medium grained, low plasticity, moist

                                         -:*: ~- ;: 7.00        Silty Sand {SM), white 10YR 8/1, fine to coarse grained, some angular to               122.8
                                         ......                 subangular gravel, well graded, saturated
                                         -:: ; . -:=

0.3 .-:*::::-:* 0.1

                                         -:: ;:. ,::..                                                                                                                               Well Seal
                                         ....:**:*-.*                                                                                                                                Type: Bentonite 12-14 ft bgs
                                         ......                                                                                                                                      Filter Pack 0.1   .. : ..
                                         -:: ; . ,::                                                                                                                                 Type: #2 Filter
                                         ..:**:*-.*                                                                                                                                  Sand 14-27 ft bgs o.o ::::::: 16.00            Sand {SW), yellow 10YR 7/8, fine to coarse grained, few silt, trace
                                         *: *: *:

17_00 ~s_u_br_o_un_d_e_d~g~ra_v,_e_l,_coa_rs_e_n_in~g_d_ow_na_r_d_,s_at_u_r_at_ed_ _ _ _ _ _ _ _~ Well Screen Sand {SW), white 10YR 8/1, medium to coarse grained, few silt, trace 16 -21 ft bgs subrounded gravel, saturated

-,                                 0.0 n.

(!)

20.00 Sand {SW), reddish yellow 5YR 6/8, medium to coarse grained, few angular 0

 ~                                                              to subrounded quartz gravel, trace quartz cobbles, saturated                           108 _8 -: *.-:-:-:- :-. -:

i= Clay {CH), reddish yellow 5YR 6/8 and white 10YR 8/1, few silt, highly plastic z~ w w i - ~ - - - - , - - - - - - - - - - - - - - - - - - - - - - - - - - - t - - - - - - - 1 * : . *..-*.*. **:::

 ~1                                                             Clayey Sand (SC), reddish yellow 5YR 6/8, fine to coarse grained, trace
~ 1                                                             rounded to subrounded quartz gravel and cobbles, well graded It                                                               Clay (CL), reddish gray 10R 5/1 and reddish yellow 5YR 6/8, few silt, hard,                   *.-. *._.*_.. **_..-_.
~1r=--'-----'----'----"'-"'"""-"""'-----.....!!!br.!itt!:!!le::!.,~d!lry'.....__ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __,......__.._*.-'-.*,_:-_:""'-:"""-:-'*.,___ _ _ _ _7 3:                                                                                             Bottom of borehole at 27 feet.
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WELL NUMBER W-100 ASCOM TOTAL DEPTH 12 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 01/28/2021 COMPLETED 01/28/2021 SURVEYING BY/DATE AECOM/ 03-30-21 DRILLING CONTRACTOR SAEDACCO EASTING 745126.22 NORTHING 2023636.36 DRILLING EQUIPMENT Geoprobe 8140 LS Sonic GROUND ELEVATION 129.47 ft CASING ELEVATION 133.47 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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             !     6      Cl   ~ ...J                                                                                      0 0 ft bgs

(..) w 0:: ii: (!) I [ij o.oo Sandy Silt {ML), red 2.5YR 4/6 and brown 7.5YR 5/3, fine grained, moist 129.5 0.0 0.1 5.50 Sandy Clay {CL), reddish yellow 7.5YR 6/8, red 2.5YR 4/8 and very pale brown 10YR 8/4, firm, fine to medium grained sand, low plasticity, moist Well Seal Type: Bentonite Silty Sand {SM), white 10YR 8/1, fine to coarse grained, some angular to 3-5 ft bgs subangular gravel, well graded, saturated Filter Pack Type: #2 Filter Sand 5-12 ft bgs n. (!) 0

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WELL NUMBER W-101 TOTAL DEPTH 37 FT BGS A:COM PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 01/28/2021 COMPLETED 01/28/2021 SURVEYING BY/DATE N/A DRILLING CONTRACTOR SAEDACCO EASTING 744767.31 NORTHING 2023927.34 DRILLING EQUIPMENT Geoprobe 8140 LS Sonic GROUND ELEVATION - N/A

                                                                                                         - - - - CASING ELEVATION ~N~/A~--

DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE WELL DIAGRAM

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0.00 Silty Clay (CL-ML), red 2.5YR 4/8 and reddish yellow 7.5YR 6/8, few fine grained sand, low plasticity, moist 0.3 2.00 Sandy Clay (CL), red 2.5YR 4/8, fine grained sand, moist 0.2 Clayey Sand (SC), red 2.5YR 4/8, fine to medium grained, moist Clayey Sand (SC), reddish yellow 7.5YR 6/8, red 2.5YR 4/8 and white 10R 8/1, fine to coarse, angular qtz, hard, dry 6-8', moist 8'-16' 0.3 Sand (SW), very pale brown, fine to medium grained, little silt, saturated 1.3 0.5 0.5 Sand (SW), white 2.5YR 8/1, fine to coarse, few silt, few mica, well graded, saturated 1.3 0.8

31 .00 Sand (SW), reddish yellow 5YR 6/8 and very pale brown 10YR 8/3, fine to coarse, few silt, few mica, trace angular gravel, well graded, saturated Silty Clay (CL-ML), very pale brown 10YR 7/4 and reddish yellow, high plasticity (Continued Next Page)

WELL NUMBER W-101 TOTAL DEPTH 37 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

0 J: w

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              <(     0     Cl ~...J Cl)    (.)

w a: C) 0::: 35 I Clayey Sand (SC), gray7.5 YR 6/1 , fine to coarse, few angular to subrounded gravel,

      -2L                           ~     Clay (CL), very dark gray 7.5YR 3/1, hard, no plasticity 37                0.7 37.00 39.00 No well installed due to clay being encountered 3.5 feet below the bottom of the screen of adjacent well W-11 . Borehole abandoned with bentonite grout.

i( Bottom of borehole at 37 feet. (9 ~ 0 g w ~ 0.

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WELL NUMBER W-103 ASCOM TOTAL DEPTH 44 FT BGS PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 01/26/2021 COMPLETED 01/27/2021 SURVEYING BY/DATE AECOM/ 03-30-21 DRILLING CONTRACTOR SAEDACCO EASTING 744466.69 NORTHING 2024483.13 DRILLING EQUIPMENT Geoprobe 8140 LS Sonic GROUND ELEVATION 132.56 ft CASING ELEVATION 134.87 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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0. 2 ~~==-----=-si:::-lty-C::cl:-ay-(:-::C::--L--=-M-::-L-:-),-r-ed-:-d::--is-:-h-ye-:-ll:-rm----=1.-=57y=R:-:6:-::/8::-a-n--:d--::li--:gh-:-t-gr-a-y-=-7_-=57y=R-=1:-:-/1:-,-no--+-::-::--:-l plasticity, hard, dry 0.2 0.4 0.2 Clayey Sand (SC), black 7.5YR 2.5/1 and gray 7.5YR 5/1, fine to medium grained, saturated 0.1 Clayey Sand (SC), yellrmish brrmn, fine to coarse, trace subangular gravel, well graded, saturated 0.1 0.1 Clay (CL), light gray 10YR 7/2, trace fine to course sand, trace gravel, lrm plasticity, stiff, moist 0.1 Clayey Sand (SC), light gray 7.5YR 7/1, fine to coarse, coarsening drmnward, well graded, saturated 0.1 Clayey Sand (SC), light gray 7.5YR 7/1, fine to coarse, trace subrounded to rouned gravel, coarsening drmnward, well graded, saturated

...J 3: 0 z 0.3 Well Seal ~ 1 Clayey Sand (SC), reddish yellrm 7.5YR 6/8, fine to coarse, trace Type: Bentonite ~ subrounded to rouned gravel, trace quartz cobbles, well graded, saturated 30-32 ft bgs g I Sandy Clay (CL), light gray 10YR 7/2 and reddish yellrm 7.5YR 6/8, fine to 0 _2 *((( 32.00 ~m_e_di_u_m_s_a_nd_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~ Filter Pack ~ \S{. f!1~i~~~:~h~~~~10YR 7/2 and reddish yellrm 7.5YR 6/8, fine grained, Type: #2 Filter Sand 32-44 ft bgs !;l!i::.....:=..:;i__ _..1-_..1-0_.2___.J:............:**~**.1...-_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ___,__ __,_.;..:..:J___JL...:..;.;:L...-_ _ _ _ __J (Continued Next Page)

WELL NUMBER W-103 ASCOM TOTAL DEPTH 44 FT BGS PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

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[ij 0.3 / ) 36.00 Sand (SW), light gray 10YR 7/2 and reddish yellow 7.5YR 6/8, fine to 96.6 medium grained, few silt, poorly graded *.

: : : : : : 38.00 Sand (SW), yellowish red 5YR 6/8, fine to medium grained, few silt, poorly 94.6 39 _00 ~g~ra_d_e_d_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~ 93.6 Clay (CL), white 2.5Y 8/1, transitioning to reddish yellow 5YR 6/6 to gray 5YR 5/2 to very dark gray 5YR 3/1, stiff, low plasticity n.

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WELL NUMBER W-104 ASCOM TOTAL DEPTH 17 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 01/25/2021 COMPLETED 01/25/2021 SURVEYING BY/DATE AECOM/ 03-31-21 DRILLING CONTRACTOR SAEDACCO EASTING 744154.72 NORTHING 2024875.51 DRILLING EQUIPMENT Geoprobe 8140 LS Sonic GROUND ELEVATION 115.45 ft CASING ELEVATION 118.48 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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                             -:*: ~- ;: 0.00                 Silty Sand (SM), reddish yellow 7.5YR 6/8, fine grained                            115.5
                             ....:**:*-.*                                                                                                                     Well Casing Diameter: 2 in 0.0
                             -:: ;:. ,::..                                                                                                                    0-7.5 ft bgs
                             -:: ; . ,::                                                                                                                      Backfill
                             ..:**:*-.*                                                                                                                       Type: Cement /

Bentonite Grout O.O i-r,,,,-;-,,,t-,4...,,.5.,...0--S-a-nd_y_C_la_y_(_C_L_),-g-ra_y_1_0Y-R-5/_1_,f-in_e_g-ra-in_ed_s-an-d----------+-11_1_.o 0-3 ft bgs Well Seal Type: Bentonite 3-5 ft bgs Filter Pack Type: #2 Filter Sand 5-17 ft bgs Well Screen Sand (SW), reddish yellow 7.5YR 6/8, medium to coarse grained, little silt, 7.5 -17.5 ft bgs trace subangular quartz gravel n. (!) 0

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WELL NUMBER W-105 ASCOM TOTAL DEPTH 27 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 01/26/2021 COMPLETED 01/26/2021 SURVEYING BY/DATE AECOM/ 03-31-21 DRILLING CONTRACTOR SAEDACCO EASTING 743843.47 NORTHING ~2=0=24~1~3~8_ _ _ __ DRILLING EQUIPMENT Geoprobe 8140 LS Sonic GROUND ELEVATION 114.8 ft CASING ELEVATION 117.57 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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0 0 ft bgs w ~ 0:: [ij o.oo Silt (ML), strong brown 7.5YR 5/6, soft, moist 114.8 Well Casing

2.8 Diameter

2 in 0-14 ft bgs Backfill Type: Cement / 6.0 Bentonite Grout 0-10 ft bgs 0.1 6.50 Clayey Silt {MH), strong brown 7.5YR 4/6, hard, low plasticity, dry 108.3 8.00 Silt {ML), strong brown 7.5YR 5/6 and very pale brown 10YR 7/3 and dark 106.8 yellowish brown 10YR 3/6, soft, high plasticity, moist Well Seal Type: Bentonite 10-12 ft bgs Filter Pack Type: #2 Filter Sand 12-27 ft bgs 14.00 Silty Clay {CL-ML), strong brown 7.5YR 5/6 and very pale brown 10YR 7/3 and dark yellowish brown 10YR 3/6, soft, high plasticity, moist Well Screen 14 -24 ft bgs Sand {SP), greenish gray GLEY1 5/1, fine grained, few silt, micaceous, poorly graded, saturated Silty Sand, greenish gray GLEY1 5/1, fine grained, micaceous, saturated Sand {SP), greenish gray GLEY1 5/1, fine grained, few silt, micaceous, poorly graded, saturated Clay (CL), very dark gray 5Y 3/1, little silt, few fine grained sand, trace mica, 90.8 \\/:"/:: highly plastic, soft ..... * .

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WELL NUMBER W-106 ASCOM TOTAL DEPTH 30.5 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 02/15/2021 COMPLETED 02/15/2021 SURVEYING BY/DATE AECOM/ 03-30-21 DRILLING CONTRACTOR _E_l_ite_T_e_c_hn_ig~u_es _ _ _ _ _ _ _ _ __ EASTING 744431.55 NORTHING 2023371.32 DRILLING EQUIPMENT _G_e_o~p_ro_be_7_82_2_D_T_ _ _ _ _ _ _ _ __ GROUND ELEVATION 115.68 ft CASING ELEVATION 118.69 ft DRILLING METHOD _G_e_o~p_ro_be_ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S Well Casing li::2 a. w .e a.o C: Diameter: 2 in MATERIAL DESCRIPTION w- :!!: 6 Cl ~...J 0 0 ft bgs Cl c'5 (.) w 0:: ii: (!) I [ij Clayey Sand (SC), yelowish red 5YR 4/6, fine to medium grained, well graded, moist Well Casing Diameter: 2 in 0-24.5 ft bgs Backfill Type: Cement / Bentonite Grout 0-20.5 ft bgs Clayey Sand (SC), yelowish red 5YR 4/6, fine to coarse grained, well graded, moist to saturated Clayey Sand (SC), dark grayish brown 2.5Y 4/2, fine to medium grained, well graded, saturated

                                  .00     Sand (SW), grayish brown 2.5Y 5/2, fine to medium grained, well graded, saturated Well Seal Clay (CH), dark gray 5Y 4/1, soft, highly plastic, saturated                                 Type: Bentonite
                        *:*:*:* 21.00     Sand (SW), dark gray 5Y 4/1, fine to coarse grained, well graded, saturated                  20.5-22.5 ft bgs Filter Pack 0

0 0 0 Type: #2 Filter 0 0 0 0 0 0 0 0 Sand 22.5-30.5 ft bgs 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Well Screen 0 0 0 0 0 0 0 0 0 0 0 0 oooot-,-----,--------------------------+----1 24.5 -29.5 ft bgs

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Sand (SW), dark gray 5Y 4/1, fine to coarse grained, few gravel and cobbles, well graded, saturated

WELL NUMBER W-107 ASCOM TOTAL DEPTH 42 FT BGS PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 01/25/2021 COMPLETED 01/25/2021 SURVEYING BY/DATE AECOM/ 04-01-21 DRILLING CONTRACTOR SAEDACCO EASTING 744034.11 NORTHING 2023252.18 DRILLING EQUIPMENT Geoprobe 8150 LS Sonic GROUND ELEVATION 112.27 ft CASING ELEVATION 115.23 ft DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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0 ft bgs w ~ 0:: [ij 0.00 Silty Clay (CL-ML), brown 7.5YR 4/4, little silt, soft 112.3 Well Casing Diameter: 2 in 0-29 ft bgs 109.8 Backfill Type: Cement / Bentonite Grout 0-24 ft bgs 0.1 5.00 Silt (ML), dark yellowish brown 10YR 4/4, few clay, soft, wet 107.3 0.1 7.00 Silt (ML), yellowish brown 10YR 5/4, few clay, few fine sand, soft, saturated 105.3 0.1 0.1 -:*: ~- ;: 11.00 Silty Sand (SM), yellowish brown 10YR 5/4, fine grained, little silt, poorly 101.3

                        ......                          graded, saturated
                         .-...-.-... 12 50              Sand (SP), light gray 10YR 7/1, fine grained, poorly graded, saturated                                 99.8 0.

1 Ii)*,... 1-4-:0_0_S_a_n_d-(S_P_)_,1-ig_h_tg-r-ay_1_0_Y_R_7-/1-,-m-ed-iu_m_g-ra-i-ne_d_,-poo-rl-y-gr-a-ded-,-sat_u_r_at_ed_ __,_9_8---1.3 0.1 -:*: ~ * ;: 15.00 Silty Sand (SM), dark gray 10YR 4/1, fine grained, little silt, few dark organic 97.3 _-:* :=: :-: material, saturated Sand (SW), gray 10YR 5/1, fine to medium grained, well graded, saturated 95.3 tm 0.1 } / 1700 _ t-c1-,- 9-..,,50-,---~-!-~-~-~~-'[;-J-~-~at-r~-y-1-0Y-R-5/_1_,m-ed-iu-m-to_coa_rs_e-gr-a-in_ed_,-few--gr-ave-l,-w-e-ll---+--9-2.-8-IV 02 Sand (SW), light yellowish brown 10YR 6/4, medium to coarse grained, few 90.8 gravel, well graded, saturated o., l!l!l!I"~ Well Seal Type: Bentonite 24-26 ft bgs Filter Pack Type: #2 Filter

.-::-.. 2700 Sand (SP), gray 10YR 6/1, medium grained, poorly graded, saturated Sand 0.2 ":---/:::.

26-36 ft bgs

                        \SX.                                                                                                                                                    Well Screen 29 -34 ft bgs 0.3   \SX Sand (SW), gray 10YR 6/1, medium to coarse grained, few gravel, well graded, saturated

WELL NUMBER W-107 TOTAL DEPTH 42 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E w

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w Cl) 0::: w Well Seal Type: Bentonite 36-42 ft bgs 38.00 Clay (CL), very dark gray 10YR 3/1, very stiff, moderate plasticity, damp 74.3 Bottom of borehole at 42 feet. i( (9

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WELL NUMBER W-108 ASCOM TOTAL DEPTH 35 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 01/28/2021 COMPLETED 01/28/2021 SURVEYING BY/DATE AECOM/ 04-01-21 DRILLING CONTRACTOR SAEDACCO EASTING 743611.35 NORTHING 2023295.23 DRILLING EQUIPMENT Geoprobe 8150 LS Sonic GROUND ELEVATION 111.93 ft CASING ELEVATION 115.41 ft DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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,*:."*,, 1350 Sand (SP), very pale brown 10YR 7/3, fine grained, few silt, poorly graded,

                        *:---~~-~-:: .

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                                          .      saturated Sand (SW), very pale brown 10YR 7/3, fine to coarse grained, well graded, 0.0 ( ) 15.00                  saturated
                  *<f 0.0 1-----------------------------+----I 1700 Sand (SW), gray 10YR 5/1, medium to coarse grained, well graded, saturated Silty Clay (CL-ML), dark gray 10YR 4/1, very soft, little silt, high plasticity, well Sandy Silt (ML) dark gray 10YR 4/1, some fine sand, soft, saturated 0.0

Jr~ Silty Clay (CL-ML), very dark gray 10YR 3/1, some silt, soft, wet Sand (SW), gray 10YR 5/1, fine to medium grained, few silt, well graded, saturated

: 111111I+-2-,.-oo--s-a_n_d-(S_W_)_,-g-ra_y_1_0Y_R_6/_1_,m-ed-iu-m-to_coa_rs_e-gr-a-in_ed_,_w_e_ll_gr-a-ded-,-sa-t-ur_at_ed--+----r Well Seal Type: Bentonite 24-26 ft bgs Filter Pack Type: #2 Filter Sand 26-35 ft bgs Well Screen 27 -32 ft bgs

31.00 Sand (SW), gray 10YR 6/1, medium to coarse grained, few gravel, few 32 _00 ~ro_u_n_de_d_co_b_bl_es_,_w_e_ll~gr_ad_ed_,s_a_tu_r_at_ed_ _ _ _ _ _ _ _ _ _ _~

0.0 Clay (CH), gray 7.5YR 5/1, stiff, high plasticity, moist 79.9 \\/:'/:: Bottom of borehole at 35 feet.

WELL NUMBER W-109 ASCOM TOTAL DEPTH 37 FT BGS PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 01/28/2021 COMPLETED 01/28/2021 SURVEYING BY/DATE AECOM/ 04-01-21 DRILLING CONTRACTOR SAEDACCO EASTING 743731.82 NORTHING 2022981.06 DRILLING EQUIPMENT Geoprobe 8150 LS Sonic GROUND ELEVATION 112.81 ft CASING ELEVATION 115.68 ft DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S Well Casing li::2 a. w .e a.o Diameter: 2 in MATERIAL DESCRIPTION C: w- :!!: 6 Cl ~...J 0 0 ft bgs Cl c'5 (.) w 0:: ii: (!) I [ij 0.00 Silty Clay (CL-ML), dark brown 7.5YR 3/2, little silt, soft, damp Well Casing Diameter: 2 in 0-27 ft bgs Backfill 0.0 Type: Cement / Bentonite Grout 0-25 ft bgs 0.0 5.00 Clayey Silt (MH), yellowish brown 10YR 5/4, little clay, soft, moist 0.0 8.00 Sandy Silt (ML), dark yellowish brown 10YR 4/4, soft, moist 0.0 9.00 Silt (ML), yellowish brown 10YR 5/6, soft, saturated 0.0 -:*: ~- ;: 11.00 Silty Sand (SM), yellowish brown 10YR 5/4, fine grained, some silt, saturated 0.0

                       ?\i:*.  : ..

t-1-3-.0-0_S_i_lty_S_a_n_d-(S_M_)_,-lig_h_t_ye_ll_ow_i-sh-br_ow_n_10_Y_R_6_/_4,-f-in_e_g-ra-in_ed_,_l_itt-le-s-ilt-,- - - + - - - , . .

                          .-...-.-... 1400 ~s_at_u_rat_ed             _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~

0 -6 *._._:;.;:-:

Sand (SP), light yellowish brown 10YR 6/4 to gray 10YR 5/1, fine grained, 15.00 few silt, poorly graded, saturated Wood, grayish olive 10Y-5GY 5/2, soft, wet 0.1 Sand (SW), light yellowish brown 10YR 6/4, fine to medium grained, few silt, well graded, saturated 0.1 Sand (SW), gray 10YR 5/1, fine to coarse grained, well graded, saturated 19.5 Wood 0.0 ( ) 20.00 Sand (SW), gray 10YR 5/1, fine to medium grained, well graded, saturated 1-----------------------------+-----,,._

                        ! ! ! !1-c2-2._o -,- -s-a_n_d_(S_W_)_._g_ra_y_1_0_Y_R_5_1_._fi_ne_t_o_coa_rs_e_g_r_ai-ned_,_w_el-l Well Seal Type: Bentonite

g-r-ad_ed_,s-at-u-rat-ed---+---1 23-25 ft bgs Filter Pack Sand (SW), light gray 2.5Y 7/1, fine to medium grained, well graded, Type: #2 Filter saturated

l!l!lr~

Sand 26-34 ft bgs Well Screen 27 -32 ft bgs o., / }1-,2...,..9.-50.,....---:-:-t~-~at-(~-W-)-,-g-ra_y_2_.5_Y_6_/1-,-fi-ne_t_o_coa_rs_e_g_r-ai-ned-,-few-g-ra-ve-1,-w-el-1g-r-ad_ed_,- - + - ~ 32.00 Clay (CH), very dark gray 10YR 3/1, very stiff, high plasticity, damp Well Seal Type: Bentonite (Continued Next Page)

WELL NUMBER W-109 TOTAL DEPTH 37 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM cii E w

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MATERIAL DESCRIPTION

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WELL NUMBER W-110 ASCOM TOTAL DEPTH 37 FT BGS PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 01/27/2021 COMPLETED 01/27/2021 SURVEYING BY/DATE AECOM/ 04-01-21 DRILLING CONTRACTOR SAEDACCO EASTING 744051.95 NORTHING 2022508.26 DRILLING EQUIPMENT Geoprobe 8150 LS Sonic GROUND ELEVATION 113.21 ft CASING ELEVATION 116.42 ft DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S Well Casing li::2 a. w .e a.o C: Diameter: 2 in MATERIAL DESCRIPTION w- :!!: 6 Cl ~...J 0 0 ft bgs Cl c'5 (.) w 0:: ii: (!) I [ij 0.00 Silt (ML), yellowish brown 10YR 5/4, soft, saturated Well Casing Diameter: 2 in 0-29 ft bgs -, Backfill n. (!) Type: Cement / !;; Bentonite Grout z 0 0-24.5 ft bgs i== 0.0

~                                             5.50    Sandy Silt {ML), brown 10YR 5/4, little fine sand, saturated z

w w ...J

n. 0.1

I ii: ILi IL IL 0.2 (.)I I

w en 0.3 -:*: ~- ;: 11.00 Silty Sand {SM), dark yellowish brown 10YR 4/4, fine grained, some silt,

                                ......                saturated 0

I .. : .,. (!) -:: ; . -:= z :**:*-.*. i== en 0.3 ...... w ....... z

~                                                     Sand {SP), light yellowish brown 10YR 6/4, fine grained, poorly graded, 0.3                        saturated
~

(.)

..:.                       0.6 : : : : : : : 16.00 Sand {SW), very pale brown 10YR 7/3, fine to medium grained, well graded,

'!I: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~

                                  .-...-.-... 17 00 ~s_at_u_rat_ed 0.2 ":---/\

Sand {SP), yellowish brown 10YR 5/4, fine grained, poorly graded, saturated

"'~ 0.3

                                \SX.

(D

-, 0.2 .. *.*. n. (!) Sand (SW), light yellowish brown 2.5Y 6/3, fine to medium grained, trace z mica, well graded, saturated 0 0.2 i== z~ w w ...J n. 0.2

                                !!!!!foo                                                                                                                 Well Seal
~

ii: ILi IL I 0.4 rm 25.00 Sand (SW), light olive brown 2.5Y 5/3, fine to coarse grained, well graded, subangular, saturated Type: Bentonite 24.5-27 ft bgs rm IL (.)I Filter Pack I Sand (SW), pale brown 10YR 6/3, medium to coarse grained, few gravel, well Type: #2 Filter 3: 0.4 27.00 ...'., graded, saturated Sand 3: 27-37 ft bgs 0 z 0.8 ::::::: 29.00 Sand (SW), gray 10YR 6/1, fine to medium grained, trace cobbles, well Well Screen graded 29 -34 ft bgs ~I (!) Sand and Gravel and Cobbles (GW), gray 10YR 6/1, medium grained to 0 ...J 1.8 cobbles, well graded, saturated Ii:<( 0.0 Sand (SW), pale brown 10YR 6/3, medium to coarse grained, trace cobbles,

. well graded, saturated en

. 0.1 Sand (SW), gray 10YR 5/1, fine to medium grained, trace rounded cobbles, 0

(.) w well graded, saturated .. *.* ..*. <( (Continued Next Page)

WELL NUMBER W-110 TOTAL DEPTH 37 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

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                                                                                                                   .Q 0     Cl Cl
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w Cl) 0::: w 35 .. Clayey Silt (MH), gray 10YR 5/1 , few clay, occassional gray clay leases, soft ..

      -2L                                                                                                               ... ..* -:.*:.....

37 Bottom of borehole at 37 feet. i( (9 ~ 0 g w ~ 0.

,ii I

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WELL NUMBER W-111 ASCOM TOTAL DEPTH 82 FT BGS PAGE 1 OF 3 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 01/26/2021 COMPLETED 01/26/2021 SURVEYING BY/DATE AECOM/ 04-01-21 DRILLING CONTRACTOR SAEDACCO EASTING 744378.27 NORTHING 2022564.93 DRILLING EQUIPMENT Geoprobe 8150 LS Sonic GROUND ELEVATION 113.68 ft CASING ELEVATION 116.92 ft DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Scott Ross CHECKED BY Jeremy Grant CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S Well Casing li::2 a. w .e a.o C: Diameter: 2 in MATERIAL DESCRIPTION w- :!!: 6 Cl ~...J 0 0 ft bgs Cl c'5 (.) w 0:: ii: (!) I [ij o.oo Silt (ML), strong brown 7.5YR 5/6, mostly silt, few clay, trace fine mica 113.7 Well Casing Diameter: 2 in 0-76 ft bgs Backfill Type: Cement / 0.0 Bentonite Grout 0-71.5 ft bgs 0.0 7.00 Silt (ML), strong brown 7.5YR 5/6, mostly silt, few clay, trace fine mica, wet 106.7 0.0 0.6 9.00 Silt with Sand (MUSM), strong brown 7.5YR 5/6, some silt, little fine sand, 104.7 loose, wet 0.0

                        -:*: ~- ;: 12.00        Silty Sand (SP/SM), yellowish red 5YR 5/8, mostly fine sand, some silt, trace     101.7
                       ....:**:*-.*             mica, trace fine white feldspar, loose, wet 0.0
                        -:: ; . -:=

0.0 -:_:_ ~--- -:: Sand (SP), yellowish red 5YR 5/3, trace fine feldspar 97.7 Sand (SP), very pale brown 10YR 7/3, mostly quartz medium sand, few silt, 93.7 trace feldspathic sand, loose, wet Sand (SP), light gray 5Y 7/1, trace medium to fine gravel, loose, wet 90.7 Silty Sand (SM), light gray 5Y 7/1, mostly fine to very fine, some silt, trace 85.7 mica, intermittent cemented layers (1-2 cm thick), dense, moist (Continued Next Page)

WELL NUMBER W-111 ASCOM TOTAL DEPTH 82 FT BGS PAGE 2 OF 3 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

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            !          (..)

w 0::

                                                      ~ ...J

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3.7

                                                 -:: ; . -:=
                                                 -:_:_  ~--- -::

0.1 39.00 Silt with Sand (ML), light gray 5Y 7/1, mostly silt, some fine to very fine sand, stiff, moist 0.0 Sand (SP), light gray 5Y 7/1, mostly medium sand, few silt, loose, wet

                                                 *:*: ~ * ;: 47.00                                     Silty Sand (SM), light gray 5Y 7/1, mostly medium sand, little silt, trace fine
                                                 ......                                                mica, medium dense, moist
                                                 -:: ; . -:=

0.0 :**:*-.*.

?r

{,-5-1.-00--S-i-lty_S_a_n_d_(_S_M_),-li-gh_t_g-ra_y_5_Y_7_/_1,-m-os-tl_y_m_e_d-iu_m_s_a_n-d,-l-itt-le-s-il-tt-ra_ce_fi_n_e_-+-_ __,.._ 0.0

                                                 *:: ; * ;:                                            mica, with intermittent thin (2-3 cm) light gray silty clay (MUCL) layers,
                                                 ..::* :=:: :*:.,.                                     medium dense, moist 0.0
                                                 ?r

{,-54-.-00--S-i-lty_S_a_n_d_(_S_M_),-g-ra_y_5_Y_6_/_1,-m-os-tl_y_m_e_d-iu_m_s_a_n-d,-l-itt-le-s-ilt-,-tr-ace-f-in_e_m_i_ca_,----<,______,.._ with intermittent thin (2-3 cm) light gray silty clay (MUCL) layers, medium

:=: :*:

                                                 .. : .,.                                              dense, moist 0.2 -:: ; . -:=
                                                 -:_:_ ~--- -::

O.O 1z.n.777r.:5-=-s.-=:5=-----=s:-:-:ilty:--::C:-:-la-y--:(::-:M::--U:::C:-:-L:-),-g-ra-y--=5::-:y--::5::-/1:--,-w-et:--,-m-ed-::i-um-s-:-::tiff=-,-m-os----::-tly-s-::il::--t,7few-c-:-la-y------t--::-::--:--rs

                                                 *:: ; * ;: 59.00                                      Silty Sand (SM), gray 5Y 6/1, mostly medium to fine sand, some silt, trace
                                                 .... *:* *.,.*                                        mica, medium dense, wet 0.2
                                                 -:: ; . -:=
                                                 -:: ; . -:=

0.6

                                                 -:: ; . -:=

i: // 65.00 Silty Sand (SM), gray 5Y 6/1, mostly medium to fine sand, some silt, trace

                                                 ......                                                mica, thin 2-3 cm layer of dark gray to black organic material at 65', medium 0.0         .. : .,.
                                                 .......                                               dense, wet
                                                    ........... 6700                                   Sand (SP), gray 5Y 6/1, mostly medium sand, few silt, trace very fine mica,
                                                 *:---~~-~-:: .                            .           loose, wet t                                                 \SX.

i 8~

  '                                 : *. :**:****:.*:* *:*.*:.* .*:.**.*:. [: * *:.,.77.-31_. 00-00--~-~~-d-'l_~_P_)~_.g_:a_J_5_Y_6_/_1,_m_os_tl_y_fi_ne_t_o_ve_ry_f_in_e_s-an_d_,_few--si-lt,_t_ra_ce_ve_ry_fi-ne-+--

14 Sand (SP), light gray GLEY1 7/1, mostly fine sand, little silt, loose, wet !;l!~~.:i.,__ _...J..._...J..._....J..:.:.:....-::..;..*::.:.;:~:J..,__ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _J..,__.L.:,..:.J_...J..:,.;.:i_....i:li;ILILI._ _ _ _..J (Continued Next Page)

WELL NUMBER W-111 ASCOM TOTAL DEPTH 82 FT BGS PAGE 3 OF 3 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S li::2 a. w 6 .eClii: a.o MATERIAL DESCRIPTION C: w- :!!: 0

                                   ~...J Cl     c'5    (.)         (!)
                                                                                                                                 ~

w ~ 0:: [ij 75

                                                                                                                                                   ..... /4-tl~ n ogs

_lL 0.2 *: :.~~--~:: :. .. *. :::- _n_ .... = *:.* Well Screen _BL_ 0.2 \SX. 77.00 Sand (SP), light gray GLEY1 8/1, mostly medium sand, few coarse sand, loose, wet 36.7

                                                                                                                                      -::-. = :::-.

-: 76 -81 ft bgs

__TIL_ \SX. .... =

                                                                                                                                      -::-. = :::-.

__fill_ ___!!L 0.0 \SX.

                                                                                                                                      ... = *:.*

81.00 Silty Clay (MUCL) gray GLEY1 6/1, some silt, some clay, very stiff, dry 82 32.7 Bottom of borehole at 82 feet. i( (!) 0

i==

z w w ...J n.

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WELL NUMBER W-112 ASCOM TOTAL DEPTH 37 FT BGS PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 01/27/2021 COMPLETED 01/27/2021 SURVEYING BY/DATE AECOM/ 04-01-21 DRILLING CONTRACTOR SAEDACCO EASTING 744101.62 NORTHING 2022027.51 DRILLING EQUIPMENT Geoprobe 8150 LS Sonic GROUND ELEVATION 112.93 ft CASING ELEVATION 116.07 ft DRILLING METHOD _G_e_o~p_ro_be _ _ _ _ _ _ _ _ _ _ _ _ __ HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S Well Casing li::2 a. w .e a.o C: Diameter: 2 in MATERIAL DESCRIPTION w- :!!: 6 Cl ~...J 0 0 ft bgs Cl c'5 (.) w 0:: ii: (!) I [ij o.oo Silt (ML), dark yellowish brown 10YR 4/4, few clay, soft, moist 112.9 Well Casing Diameter: 2 in 1.50 Clayey Silt {MH), yellowish brown 10YR 5/4, little clay, soft, moist 111.4 0-29 ft bgs Backfill Type: Cement / Bentonite Grout 0-27 ft bgs 0.0 O.O t-'l--'t-'l--'1-c-8...,,.5.,...0--S-ilt_{_M_L_),-ye-l-low-is_h_b-row_n_1_0_Y_R_5_ 4-,-soft-,-few_c_la_y_,m-oi-st--------+-10-4-.4-!\ 0.0 -:*: ~- ;: 10.00 Silty Sand {SM) light olive brown 2.5Y 5/3, fine grained, little silt, wet 102.9 0.0 0.1 .-:* ::::-:*

li]!,_:_:_:__ _ _--+_:_*i---<:

_:_::_::_:_::_:_:_:_:_::_:_:_:_::_:_::_:_:_:_::_:_:_:_r_:_*:_~_d_~_~_:_:_:_:_~_s_at_u-rat_ed

                       .. :*-** 17.00          Sand {SP), gray 10YR 6/1, fine grained, poorly graded, saturated                                    95.9 0.1 )./(.

0.2 ::::_/} Sand {SW), gray 10YR 6/1, fine to medium grained, well graded, saturated 92.9 0.2 ( ) 20.00 22.00 Sand and Gravel {SW-GW), gray 10YR 7/1, medium grained to gravel, trace 90.9 cobbles, well graded, saturated 0.2 Well Seal Type: Bentonite 24-27 ft bgs Sand (SW), gray 10YR 7/1, fine to coarse grained, trace cobbles, well graded, 87.9 saturated Filter Pack Type: #2 Filter Sand 27-37 ft bgs Well Screen 29 -34 ft bgs

WELL NUMBER W-112 TOTAL DEPTH 37 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

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      -2L 37                    I     Bottom of borehole at 37 feet.

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WELL NUMBER W-113 ASCOM TOTAL DEPTH 39 FT BGS PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 07/28/2021 COMPLETED 07/28/2021 SURVEYING BY/DATE AECOM/ 08-20-21 DRILLING CONTRACTOR SAEDACCO EASTING 746811.2 NORTHING 2024004.27 DRILLING EQUIPMENT Geoprobe 8140 LS Sonic GROUND ELEVATION 135.65 ft CASING ELEVATION 138.55 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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       !     6      Cl     ~ ...J                                                                                                          0 0 ft bgs

(..) w 0:: ii: (!) I [ij 0.0 0.00 Sandy Silt {ML), light brownish gray 10YR 6/2 and brownish yellow 10YR 6/8, fine grained sand, moderate plasticity, moist Well Casing Diameter: 2 in Silty Clay {CL-ML), gray 10YR 6/1 and brownish yellow 10YR 6/8, few fine 0-31 ft bgs grained sand, stiff, moderate plasticity, dry Silty Sand {SM), gray 10YR 6/1 and brownish yellow 10YR 6/8, fine to Backfill medium grained, dry Type: Cement / Bentonite Grout Silty Sand {SM), gray 10YR 6/1 and brownish yellow 10YR 6/8, fine to coarse 0-27 ft bgs grained, dry Sandy Clay {CH), white 10YR 8/1 and gray 10YR 6/1, fine to medium grained, moderate plasticity, moderately stiff, moist Clayey Sand {SC), gray 10YR 6/1, fine to medium grained, moist Sand {SW), gray 10YR 6/1 and very pale brown 10YR 7/3, fine to coarse grained, coarsening downward, saturated at 10' 0.0 11.50 Sand {SW), gray 10YR 6/1 and very pale brown 10YR 7/3, fine to coarse 0.0 12 _50 grained, trace subangular to subrounded gravel, coarsening downward, saturated 13.50 Sand {SW), gray 10YR 6/1 and very pale brown 10YR 7/3, fine to coarse 0.0 grained, few subangular to subrounded gravel, coarsening downward, saturated 15.50 Sand {SW), gray 10YR 6/1 and very pale brown 10YR 7/3, fine to coarse o o i;;,.,_.,,,...,.,,...,,..,..,, grained, little subangular to subrounded gravel, coarsening downward,

16-50 saturated

                        -:_:_ ~-- i: 17.50            Sand {SW), gray 10YR 6/1 and very pale brown 10YR 7/3, fine to coarse grained, some subangular to subrounded gravel, coarsening downward, 18.50 saturated 0.0 1~------------------------~1 Clayey Silt {MH), dark gray 10YR 4/1 and black 10YR 2/1, trace wood pieces, soft, high plasticity Silty Sand {SM), gray 5Y 6/1, fine grained 0.0                                Sand {SW), light gray 10YR 7/2, fine to coarse grained, coarsening downward, trace to few subangular to subrounded gravel, little to few silt 23.00           Gravel, {GW), white 10 YR 8/1, little fine to coarse sand, little silt, subangular to subrounded Well Seal Type: Bentonite 27-29 ft bgs Filter Pack Type: #2 Filter Sand 29-39 ft bgs Well Screen 31 -36 ft bgs (Continued Next Page)

WELL NUMBER W-113 ASCOM TOTAL DEPTH 39 FT BGS PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

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_))_

39 1=:- Sand (SW), pale brown 2.5Y 7/3, fine to coarse, few silt, well graded Clay (CH), dark gray 10YR 4/1, stiff, low plasticity Bottom of borehole at 39 feet.

99.7 ))~?~ i( (!) 0

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z w w ...J n.

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w en 0 I (!) z i== en w z

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~

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WELL NUMBER W-114 ASCOM TOTAL DEPTH 20 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 07/29/2021 COMPLETED 07/29/2021 SURVEYING BY/DATE AECOM/ 08-20-21 DRILLING CONTRACTOR SAEDACCO EASTING 746806.04 NORTHING 2024001.48 DRILLING EQUIPMENT Geoprobe 8140 LS Sonic GROUND ELEVATION 135.54 ft CASING ELEVATION 138.75 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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               !       6       Cl       ~ ...J                                                                                                                    0 0 ft bgs

(..) w 0:: ii: (!) I [ij 0.00 Sandy Silt {ML), light brownish gray 10YR 6/2 and brownish yellow 10YR 6/8, moderate plasticity, fine grained sand, moist Well Casing Diameter: 2 in Silty Clay {CL-ML), gray 10YR 6/1 and brownish yellow 10YR 6/8, stiff, 0-10 ft bgs moderate plasticity, few fine grained sand, dry Silty Sand {SM), gray 10YR 6/1 and brownish yellow 10YR 6/8, fine to Backfill medium grained, dry Type: Cement / Bentonite Grout Silty Sand {SM), gray 10YR 6/1 and brownish yellow 10YR 6/8, fine to coarse 0-6 ft bgs grained, dry Sandy Clay {CH), white 10YR 8/1 and gray 10YR 6/1, fine to medium Well Seal grained, moderate plasticity and stiffness, moist Type: Bentonite 6-8 ft bgs Clayey Sand {SC), gray 10YR 6/1, fine to medium grained, moist Sand {SW), gray 10YR 6/1 and very pale brown 10YR 7/3, fine to coarse Filter Pack i i i i'~ grained, coarsening downward, saturated at 10' Type: #2 Filter Sand 8-20 ft bgs 1-,-,-...,,..,---------------------------t-----l Well Screen

11.50 Sand {SW), gray 10YR 6/1 and very pale brown 10YR 7/3, fine to coarse 10 -20 ft bgs

                                    *: *: *:

12 _50 grained, trace subangular to subrounded gravel, coarsening downward, saturated grained, few subangular to subrounded gravel, coarsening

_::::_::::_:: 13.50 ~-S-a-nd-{S_W_)_._g_ra_y_1_0_Y_R_6_/1_a_n_d_ve_ry_pa_le_b_r_ow_n_1O-Y-R-7/_3_,downward, f-in_e_t_o_coa_rs_e_~

saturated

_: :_: :_: :. 15.50 Sand {SW), gray 10YR 6/1 and very pale brown 10YR 7/3, fine to coarse grained, little subangular to subrounded gravel, coarsening downward, 16-50 saturated

                                     -: :_ ~-- i:     17.50 Sand {SW), gray 10YR 6/1 and very pale brown 10YR 7/3, fine to coarse grained, some subangular to subrounded gravel, coarsening downward,

_::.::.::. 18.50 1~s_at_u_rat_ed_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~ 1

~i------::=-_.__ _...,___...,___..i;...;....;...;;.....__1 Clayey Silt {MH), dark gray 10YR 4/1 and black 10YR 2/1, trace wood pieces,1,..1-_....L......:.1.._..J..:.;...i__ _ _ _ _---1 C!l                                                        1,__s_oft--'-,h_i=-gh--'-pl_as_t_ic....,ity'----------------------1*
~                                                              Silty Sand {SM), gray 5Y 6/1, fine grained
~                                                              Sand {SW), light gray 10YR 7/2, fine to coarse grained, coarsening
;!:                                                            downward, trace to few subangular to subrounded gravel, few silt
~                                                                                            Bottom of borehole at 20 feet.

w

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WELL NUMBER W-115 ASCOM TOTAL DEPTH 50 FT BGS PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 07/27/2021 COMPLETED 07/27/2021 SURVEYING BY/DATE AECOM/ 08-20-21 DRILLING CONTRACTOR SAEDACCO EASTING 746784.3 NORTHING ~2=0=23~4~3~5-~8_ _ _ __ DRILLING EQUIPMENT Geoprobe 8140 LS Sonic GROUND ELEVATION 139.06 ft CASING ELEVATION 141.71 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S Well Casing li::2 a. w .e a.o C: Diameter: 2 in MATERIAL DESCRIPTION w- :!!: 6 Cl ~...J 0 0 ft bgs Cl c'5 (.) w 0:: ii: (!) I [ij _:. :. ** 0.00 Silty Sand (SM), light brown 7.5YR 6/4, fine grained, dry Well Casing 0.50 Clayey Silt (MH), reddish yellow 7.5YR 6/8 and red 7.5YR 4/8, trace fine Diameter: 2 in grained sand, stiff, dry 0-40.5 ft bgs 3.00 Clayey Silt (MH), light gray 5YR 7/1 and yellowish red 5YR 5/8, few fine Backfill grained sand, dry Type: Cement / Bentonite Grout 0-36 ft bgs

                                      -:*: ~- ;: 5.00                                   Silty Sand (SM), very pale brown 10YR 8/3, fine to medium grained, some
                                      ......                                            feldspar, dry
                                      -:: ; . -:=
                                      /\\a.so Silty Sand (SM), reddish yellow 7.5YR 5/8 and very pale brown 10YR 8/4, fine to coarse grained
                                      -:: ; . -:=
                                      -:_:_ ~--- -::

.-:. * .. 12 00 Sand (SP), very pale brown 10YR 8/3, fine grained, few silt, trace mica, poorly graded, coarsening downward

/: 13.00 Sand (SW), very pale brown 10YR 8/3, fine to medium grained, few silt, trace mica, well graded, coarsening downward Sand (SW), very pale brown 10YR 8/3, fine to coarse grained, few silt, trace mica, well graded, coarsening downward Sand (SP), very pale brown 10YR 8/3, coarse grained, few silt, trace mica,

                                      ******* 16_5                                      trace angular gravel, poorly graded,
                                      ! !_! !_! !_! 17.00 ,~!-~-~-~-~_':'_II~~_r:_~ry_ed_pa_1e_b_row_n_1_o_v_R_8_/_3_,f_in_e_to_coa_rs_e_g_r_ai_n_ed_,_few   __ si-lt,_t_ra_ce~,

Sand (SW), very pale brown 10YR 8/3, fine grained, few subangular to

~~

C!l 0. 1

: :.: : :.: : :.: : :.: : :.: : :.: : :. 19.50 Silt (MH), light gray 2.5Y 7/2, little fine grained sand, few clay, highly plastic subrounded gravel, few silt, trace mica, well graded Sand (SW), light gray 10YR 7/1, fine to medium grained, few silt, trace mica,

                                                                                                                                                                               "+---IV
 ~                                                                                      coarsening downward
 ~                                                                                      Sand (SW), light gray 10YR 7/1, fine to coarse grained, few silt, trace
 ~                                                                                      subangular gravel, trace mica w

Sand (SW), light gray 7.5YR 7/1, fine to coarse grained, some small angular to subangular gravel, little silt, well graded !: :: i!i!iroo Sand (SW), very pale brown 10YR 8/4, fine to coarse grained, few angular to subangular small gravel, few silt, coarsening downward , :>i!i!roo §<i......;:=-....,__ __.__....,__....._. 1.4 : :............

: : : : 34.00 ___ Sand

__ (SW), __ white __ 7.5YR _ _8/1, _ fine __ to _ coarse __ grained, ___ little _angular ___ to _ _ __.__ __.,_.,._.___,..,._..___ _ _ _ ___, (Continued Next Page)

WELL NUMBER W-115 ASCOM TOTAL DEPTH 50 FT BGS PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

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a. w 6 .eClii: a. 0 MATERIAL DESCRIPTION C:

              !      (..)

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                                ~ ...J

(!) I 0 [ij subangular small gravel, few silt Well Seal 0.8 Type: Bentonite 36-38 ft bgs Filter Pack Type: #2 Filter 0.2 Sand 38-50 ft bgs Well Screen 40.5 -45.5 ft bgs 0.2 n. (!) !;; 0.1 *: *: *:

44.00 Sand (SW), reddish yellow 7.5YR 7/8, fine to coarse, little subangular to 95.1 z

0 i== 45 _00 ~s_u_br_o_un_d_e_d~g~ra_v,_e_l,_few_s_il_t- - - - - - - - - - - - - - - ~ 94.1

~                                                   Silty Clay (CL), dark gray 7.5YR 4/1, stiff, low plasticity z

w w ...J n.

I ii: ILi IL IL (.)I I Bottom of borehole at 50 feet.

w en 0 I (!) z i== en w z

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~

(.) '!I:

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n. (!) z 0 i== z~ w w ...J n.

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WELL NUMBER W-116 ASCOM TOTAL DEPTH 20 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 07/26/2021 COMPLETED 07/26/2021 SURVEYING BY/DATE AECOM/ 08-20-21 DRILLING CONTRACTOR SAEDACCO EASTING 746778.95 NORTHING 2023433.25 DRILLING EQUIPMENT Geoprobe 8140 LS Sonic GROUND ELEVATION 138.99 ft CASING ELEVATION 141.91 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S Well Casing li::2 a. w .e a.o C: Diameter: 2 in MATERIAL DESCRIPTION w- :!!: 6 Cl ~...J 0 0 ft bgs Cl c'5 (.) w 0:: ii: (!) I [ij _:. :. ** 0.00 Silty Sand (SM), light brown 7.5YR 6/4, fine grained, dry Well Casing 0.50 Clayey Silt (MH) reddish yellow 7.5YR 6/8 and red 7.5YR 4/8, trace fine Diameter: 2 in grained sand, stiff, dry 0-10 ft bgs 3.2 3.00 Clayey Silt (MH), light gray 5YR 7/1 and yellowish red 5YR 5/8, few fine sand, Backfill dry Type: Cement / 1.6 Bentonite Grout 0-6 ft bgs

                               -:*: ~- ;: 5.00        Silty Sand (SM), very pale brown 10YR 8/3 and reddish yellow 5YR 6/8, fine
                               ......                 to medium grained, some feldspar, dry
                               .. : .                                                                                                              Well Seal
                               -:: ; . -:=                                                                                                         Type: Bentonite 0.0 .-:*::::-:*                                                                                                          6-8 ft bgs
                               /\\a.so 1.1 .. : ..

Silty Sand (SM) reddish yellow 7.5YR 5/8 and very pale brown 10YR 8/4, fine to coarse grained Filter Pack Type: #2 Filter

                               -:: ; . ,::                                                                                                         Sand
                               ....:**:*-.*                                                                                                        8-20 ft bgs
                               -:_:_ ~--- -::                                                                                                      Well Screen

.-:. *.. 12 00 Sand (SP), very pale brown 10YR 8/3, fine grained, few silt, trace mica, 10 -20 ft bgs 0.0 *._._::.::-: .

poorly graded, coarsening downward

/: 13.00 Sand (SW), very pale brown 10YR 8/3, fine to medium grained, few silt, trace mica, well graded Sand (SW), very pale brown 10YR 8/3, fine to coarse grained, few silt, trace mica, well graded Sand (SP), very pale brown 10YR 8/3, very coarse grained, trace angular gravel, poorly graded

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WELL NUMBER W-117 ASCOM TOTAL DEPTH 47 FT BGS PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 07/27/2021 COMPLETED 07/28/2021 SURVEYING BY/DATE AECOM/ 08-20-21 DRILLING CONTRACTOR SAEDACCO EASTING 746432.66 NORTHING ~2=0=23=2=3~7-~7_ _ _ __ DRILLING EQUIPMENT Geoprobe 8140 LS Sonic GROUND ELEVATION 140.82 ft CASING ELEVATION 143.76 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S Well Casing li::2 a. w .e a.o C: Diameter: 2 in MATERIAL DESCRIPTION w- :!!: 6 Cl ~...J 0 0 ft bgs Cl c'5 (.) w 0:: ii: (!) I [ij 0.00 Clay (CH), yellowish brown 10YR 5/6 to gray 10YR 6/1 and red 1OR 4/8, mottled, few silt, medium stiff, moderate plasticity Well Casing Diameter: 2 in 0-39 ft bgs Backfill Type: Cement / 4.00 Silty Clay (CL-ML), light gray 10YR 7/2 and reddish yellow 7.5YR 6/8, Bentonite Grout medium stiff, few fine sand 0-35 ft bgs Sand (SP), white 10YR 8/1, fine grained, few silt, trace mica, poorly graded Sand (SW), white 7.5YR 8/1, fine to coarse grained, few subangular to subrounded gravel, coarsening downward Sand (SW), white 7.5YR 8/1, fine to coarse grained, some gravel Sand (SW), white 7.5YR 8/1, fine to coarse grained, few subangular to subrounded gravel, coarsening downward Silty Sand (SM), light gray 2.5Y 7/1, fine to medium grained, trace mica

                      *: *: *:

26.00 Sand (SW), pale brown 10YR 6/3, fine to coarse grained, few silt, few

                       .-...-.-... 27 00 ~a_n=gu_l_ar~g~ra_ve_l,_w_e_ll=g_ra_d_ed_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~
                      ":---/\

Sand (SP), very pale brown 10YR 7/4, fine grained, some silt, poorly graded

                      \SX.
                      \SX.
                      \SX.
                      \SX (Continued Next Page)

WELL NUMBER W-117 ASCOM TOTAL DEPTH 47 FT BGS PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

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a. w 6 .eClii: a. 0 MATERIAL DESCRIPTION C:

             !      (..)

w 0::

                              ~ ...J

(!) I 0 [ij Silty Clay (CL-ML), reddish yellow 7.5YR 6/8 and light gray 7.5YR 7/1, medium stiff, high plasticity Filter Pack Sand (SW), white 10YR 8/1, fine to coarse grained, few silt, few subangular Type: #2 Filter to subrounded gravel, well graded Sand 37-47 ft bgs Sand (SW), pale brown 2.5Y 8/2, fine to coarse grained, few silt, few Well Screen subangular to subrounded gravel, well graded 39 -44 ft bgs n. (!) 0

i= z~ w w

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WELL NUMBER W-118 ASCOM TOTAL DEPTH 29 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 07/28/2021 COMPLETED 07/28/2021 SURVEYING BY/DATE AECOM/ 08-20-21 DRILLING CONTRACTOR SAEDACCO EASTING 746437.24 NORTHING 2023241.08 DRILLING EQUIPMENT Geoprobe 8140 LS Sonic GROUND ELEVATION 140.78 ft CASING ELEVATION 143.74 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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a. w

                                  .e          a. 0                                                                                                C:          Diameter: 2 in MATERIAL DESCRIPTION
               !        6          Cl         ~ ...J                                                                                              0 0 ft bgs

(..) w 0:: ii: (!) I [ij 0.00 Clay (CH), yellowish brown 10YR 5/6 and gray 10YR 6/1 and red 1OR 4/8, 140.8 mottled, few silt, medium stiff, moderate plasticity Well Casing Diameter: 2 in 0-19.5 ft bgs Backfill Type: Cement / 4.00 Silty Clay (CL-ML), light gray 10YR 7/2 and reddish yellow 7.5YR 6/8, few 136.8 Bentonite Grout fine sand, medium stiff 0-15ft bgs Sand (SP), white 10YR 8/1, fine grained, few silt, trace mica, poorly graded 128.8 Well Seal Type: Bentonite 15-17 ft bgs Sand (SW), white 7.5YR 8/1, fine to coarse grained, few subangular to 124.8 subrounded gravel, coarsening downward Filter Pack 1600 Type: #2 Filter Sand 17-29 ft bgs iiiiiii Well Screen

: : : : : : 20.00 Sand (SW), white 7.5YR 8/1, fine to coarse grained, some subangular to 19.5 -29.5 ft bgs

                                           *:*:*:* 21 _00 ~s_u_br_o_un_d_e_d~g~ra_v,_e_l- - - - - - - - - - - - - - - - - - ~

Sand (SW), white 7.5YR 8/1, fine to coarse grained, few subangular to subrounded gravel 0 0 0 0 0 0 0 0 0 0 0 0 Silty Sand (SM), light gray 2.5Y 7/1, fine to medium grained, trace mica

                                           *: *: *:

26.00 Sand (SW), pale brown 10YR 6/3, fine to coarse grained, few silt, few

                                            .-...-.-... 27 00 ~a_n=gu_l_ar~g~ra_ve_l,_w_e_ll=g_ra_d_ed_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~
                                           ":---/\

Sand (SW), wry pale brown 10YR 7/4, fine grained, some silt, poorly graded

o~~.:i... :_:_-::.-:=:~: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _....1.._--1.;.-4---1...:.;..1...-_ _ _ _ _--I _ _...J..._....1.._....J..:......;...:.;i.. z Bottom of borehole at 29 feet.

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WELL NUMBER W-119 ASCOM TOTAL DEPTH 34 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 07/23/2021 COMPLETED 07/26/2021 SURVEYING BY/DATE AECOM/ 08-20-21 DRILLING CONTRACTOR SAEDACCO EASTING 746515.76 NORTHING 2023805.69 DRILLING EQUIPMENT Geoprobe 8140 LS Sonic GROUND ELEVATION 139.48 ft CASING ELEVATION 142.24 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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                           .e       a. 0                                                                                                                                       C:                     Diameter: 2 in MATERIAL DESCRIPTION
              !     6      Cl       ~ ...J                                                                                                                                     0 0 ft bgs

(..) w 0:: ii: (!) I [ij o.oo Clay (CH), pale brown 10YR 6/3, medium stiff, high plasticity, wet Well Casing

0.0 Diameter

2 in 1.50 Silt (ML), brown 10 YR 4/3, soft, wet 0-25 ft bgs Clay (CH), yellowish brown 10YR 5/8, medium stiff, high plasticity, moist Backfill Type: Cement / 0.0 Bentonite Grout 0-21 ft bgs 0.0 6.00 Silt (ML), light gray 10YR 7/2, medium stiff, damp 0.0 9.00 Silt (ML), very pale brown 10YR 8/2, medium stiff, damp

                               -:*: ~- ;: 10.50 Silty Sand (SM), light gray 10YR 7/2, fine grained, little silt, saturated 0.0 :":° :~: )t-c1-,-1.""'50,,---s-i-lty_S_a_n_d_(_S_M_),-li-gh_t_g-ra_y_1_0_Y_R_7_/2-,-f-in-e-to_m_ed_i-um-g-ra-in_ed_,-tra_ce_g-ra_v,_e-l,--+----1\
                               -:: ; * ;:                  saturated
                               -:: ; . -:=

0.0 :**:*-.*.

                               -:: ; . -:=

0.0 ....... Sand (SW), very pale brown 10YR 8/2, fine to coarse grained, trace silt, well

                               / ) 17.00 graded, saturated 0.0 : : : : : : : 19.00 Sand (SW), very pale brown 10YR 8/2, fine to coarse grained, few angular
                               *: *: *:

20 _00 ~g~ra_v,_e_l,_tr_ace_s_il_t,_we_ll~g_ra_d_ed_,_s_at_u_rat_ed _ _ _ _ _ _ _ _ _ _ _ _~

Sand (SW), very pale brown 10YR 8/2, fine to coarse grained, trace silt, well Well Seal graded, saturated Type: Bentonite 21-23 ft bgs 0.0 Filter Pack

,::;*::;*:::, 23.00 Sand (SW), white 10YR 8/1, fine to coarse grained, little silt, trace mica, well Type: #2 Filter graded, saturated 0.2 Sand IiIiIr~

.: :.: :.: :. 24.50 Sand (SW), gray 5YR 6/1, fine to coarse grained, few silt, well graded, 23-34 ft bgs saturated

                                                       '--~-!-~_d_?_ww_e_11*-~~-~h-d~-g-~a-:a_f_;_:-~-,-1,-f-in-e-to_coa_rs_e_g_r-ai-ned-,-few--si-lt,-t-ra_ce_a-ng_u_la_r_,                          Well Screen 0.3                                                                                                                                                                         25-30 ft bgs

...J 3: 0 z 0.2 Sand (SW), yellowish red 5YR 5/8, fine to coarse grained, little silt, trace angular gravel, well graded, saturated ~I g Silty Clay (CH-MH), light brownish gray 2.5Y 6/2, stiff, highly plastic I en gi-----;a..:.......&...----'----'----'----'------------B-ot-to_m_of_bo_re_h_o_le_at_34_feet-.--------....._-.....,_....._..;_;,........_ _ _ _ _ _.... !;l!...._____________________________________________________.

WELL NUMBER W-120 ASCOM TOTAL DEPTH 37 FT BGS PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 07/29/2021 COMPLETED 07/29/2021 SURVEYING BY/DATE AECOM/ 08-20-21 DRILLING CONTRACTOR SAEDACCO EASTING 745967 .14 NORTHING 2024014.35 DRILLING EQUIPMENT Geoprobe 8140 LS Sonic GROUND ELEVATION 139.26 ft CASING ELEVATION 142.34 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S Well Casing li::2 a. w .e a.o C: Diameter: 2 in MATERIAL DESCRIPTION w- :!!: 6 Cl ~...J 0 0 ft bgs Cl c'5 (.) w 0:: ii: (!) I [ij o.oo Sandy Silt {ML), red 2.5YR 4/8, fine to medium grained sand, moist Well Casing Diameter: 2 in 0-29 ft bgs 0.4

                                             -:*: ~- ;: 3.00          Silty Sand {SM), red 2.5YR 5/8, fine to medium grained, moist                                        Backfill
                                             ....:**:*-.*                                                                                                                 Type: Cement /

Bentonite Grout 0.5

                                             -:: ; . -:=                                                                                                                   0-25 ft bgs
                                             -:_:_  ~--- -::

Sand {SW), reddish yellow 7.5YR 6/8 and pale brown 2.5Y 8/3, fine to ( ) 7.00 medium grained, little silt, moist rm 1-----------------------------+-----<< 9.00 Sand (SW), reddish yellow 7.5YR 6/8 and pale brown 2.5Y 8/3, fine to coarse grained, few silt, well graded, saturated 1-----------------------------t-----t Jroo Sand {SW), very pale brown 10YR 8/4, fine to coarse grained, trace angular gravel

                                             *:*:*:* 14.00            Sand {SW), white 2.5Y 8/1, fine to coarse grained, few silt, trace subangular gravel 4.7 -:*: ~- ;: 16.00           Silty Sand {SM), reddish yellow 7.5YR 6/8 and very pale brown 10YR 8/2,
                                             ......                   fine to medium grained
                                             -:: ; . -:=

0.1 -:_:_ ~--- -:: Sand {SW), white 2.5Y 8/1, fine to coarse grained, few angular to subrounded gravel, well graded 0.2

.-::-.. 24 00 Sand (SP), light gray 10YR 7/1, fine grianed, few silt, poorly graded 0.5 *._._:;.;:-:

troo Well Seal Sand (SW), light gray 10YR 7/1 to very pale brown 10YR 7/3, fine to coarse Type: Bentonite grained, few silt, trace angular gravel, well graded 25-27 ft bgs 3.1 Filter Pack Sandy Silt (ML), very pale brown 10YR 7/3, fine to coarse grained sand, soft Type: #2 Filter

...J 3: 1.9 Sand Sand (SW), very pale brown 10YR 8/2, fine to coarse grained, few angular to 0 27-37 ft bgs z subrounded gravel 0.2 ~ Gravel (GW), yellow 10YR 8/6, little fine to coarse sand, few subrounded to Well Screen ~ 1 rounded cobbles 29 -34 ft bgs g I en Clayey Silt (MH), pale yellow 5Y 8/4, few fine grained sand Sand (SW), white 5Y 8/1, fine to coarse grained, few silt, trace subrounded to rounded cobbles ~ 2~ 8 Sand (SW), reddish yellow 5YR 6/8, fine to coarse grained, few silt, trace !;l!i::.....:~.:i...--...J...-....1.._....J.:1=w...a..i.~-s~ua!.!:b~ro~u~nil::!de~d~t~o~r~ou~n.ll:Od~ed~co~b~b:l.l:les~--------------L..L..=:.:;.i.;._,_....;......:.;..1...-_ _ _ _ ____. (Continued Next Page)

WELL NUMBER W-120 TOTAL DEPTH 37 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

0 cii

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w~ ~ > MATERIAL DESCRIPTION .Q 0 Cl Cl

<(

Cl) (.) a:

                              ~...J C) ro>

w Cl) 0::: w 35 .. Silty Clay (CL-ML), grayish brown 10YR 5/2, moderate stiffness, highly

      -2L                                                                                                           ...* -:.*:.. .
                              ~    ~ plastic                                                                                 ..

37 Bottom of borehole at 37 feet. i( (9 ~ 0 g w ~ 0.

,ii I

ii: I LL LL LL (.)

c I

~ Cl) 0

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ii: I LL LL LL (.)

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WELL NUMBER W-121 ASCOM TOTAL DEPTH 22 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 07/29/2021 COMPLETED 07/29/2021 SURVEYING BY/DATE AECOM/ 08-20-21 DRILLING CONTRACTOR SAEDACCO EASTING 745966.73 NORTHING 2024008.09 DRILLING EQUIPMENT Geoprobe 8140 LS Sonic GROUNDELEVATION 139.12ft CASING ELEVATION 142.24 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S Well Casing li::2 a. w .e a.o C: Diameter: 2 in MATERIAL DESCRIPTION w-Cl c'5 6 (.) Cl ii:

                                   ~...J

(!)

0 0 ft bgs w ~ 0:: [ij o.oo Silt (ML), red 2.5YR 4/8, fine to medium grained, moist 139.1 Well Casing Diameter: 2 in 0-12 ft bgs

                              -:*: ~- ;: 3.00          Silty Sand (SM), red 2.5YR 5/8, fine to medium grained, moist                 136.1         Backfill
                              ....:**:*-.*                                                                                                         Type: Cement /

Bentonite Grout

                              -:: ; . -:=                                                                                                          0-8 ft bgs
                              -:_:_  ~--- -::

Sand (SW), reddish yellow 7.5YR 6/8 and pale brown 2.5Y 8/3, fine to 132.1 ( ) 7.00 Well Seal medium grained, little silt, moist tm Type: Bentonite 1 - - Sand

                                                        ---     ------------------------t---

(SW), reddish yellow 7.5YR 6/8 and pale brown 2.5Y 8/3, fine to coarse 130.1 8-10 ft bgs 9.00 grained, few silt, well graded, saturated Filter Pack Type: #2 Filter 1-----------------------------t-------f Jroo Sand (SW), very pale brown 10YR 8/4, fine to coarse grained, trace angular Sand gravel 10-22 ft bgs Well Screen 12 -22 ft bgs

                              *:*:*:* 14.00            Sand (SW), white 2.5Y 8/1, fine to coarse grained, few silt, trace subrounded gravel
                              -:*: ~- ;: 16.00         Silty Sand (SM), reddish yellow 7.5YR 6/8 and very pale brown 10YR 8/2,
                              ......                   fine to medium grained
                              -:: ; . -:=
                              -:_:_  ~--- -::
                               } { 20.00               Sand (SW), white 2.5Y 8/1, fine to coarse grained, few angular to subrounded gravel
...J 3:

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WELL NUMBER W-122 ASCOM TOTAL DEPTH 30.5 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 07/20/2021 COMPLETED 07/20/2021 SURVEYING BY/DATE AECOM/ 08-16-21 DRILLING CONTRACTOR SAEDACCO EASTING 746087.76 NORTHING 2024559.81 DRILLING EQUIPMENT Geoprobe 8140 LS Sonic GROUND ELEVATION 134.29 ft CASING ELEVATION 136.84 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S Well Casing li::2 a. w .e a.o C: Diameter: 2 in MATERIAL DESCRIPTION w- :!!: 6 Cl ~...J 0 0 ft bgs Cl c'5 (.) w 0:: ii: (!) I [ij

                                   -:*: ~- ;: 0.00     Silty Sand (SM), pale brown 2.5Y 8/2 and reddish yellow 5YR 6/6, fine to
                                   ......              medium grained, slightly moist                                                                          Well Casing
                                   .. : .,.                                                                                                                    Diameter: 2 in
                                   -:: ; . -:=                                                                                                                 0-25 ft bgs
                                   -:: ; . -:=                                                                                                                 Backfill
                                   ....:**:*-.*                                                                                                                Type: Cement /

Bentonite Grout 0.2

                                   -:: ; . -:=                                                                                                                 0-21 ft bgs 0.4 ::::.{ \ 6.00        Silty Sand (SM), very pale brown 10 YR 7/3 and yellow 10 YR 7/8, fine grained, moist
                                   <).): 7.00          Sand (SP), strong brown 7.5YR 5/8, fine grained, few clay, poorly graded,

8.00 moist Sand (SW), light yellowish brown 10YR 6/4, fine to medium grained, few clay, 0.0 *:*:*:* 9.00 well graded, wet

                                   -:*: ~- ;: 10.00    Sand (SW), gray 10YR 6/1, fine to medium grained, well graded, saturated
                                   ......              Silty Sand (SM), very pale brown 10 YR 7/3 and yellow 10 YR 7/8, fine to 0.0  .. : .,.
                                   .......             medium grained, saturated Sand (SW), light grayish brown 10YR 6/2 and pinkish gray 7.5YR 7/2, fine to coarse grained, few silt, trace angular gravel 0.0 0.0 0.0 0

tr~ Sand (SW), white 2.5Y 8/1, fine to coarse grained, little subangular to subrounded gravel, trace subangular to subrounded cobbles, coarsening downward, saturated Sand (SW), white 2.5Y 8/1, fine to coarse grained, little subangular to subrounded gravel, some rounded cobbles, saturated Well Seal Type: Bentonite 21-23 ft bgs Filter Pack Type: #2 Filter 0 Sand 23-30 ft bgs Well Screen 25-30 ft bgs 6

...J 3:

0 z o. 5 ******* 29.5 Sand (SW), reddish yellow 7.5YR 6/8, fine to coarse grained, little subangularrn..'..'=.,,_~~~

~l~=a,___...l.._                                                                                                                _ _ _ _ _ _ __Jf~~t--------------t

_..l__ _j]~~ru~,_t_o_s_u_br_o_un_d_e_d_,,g'-ra_ve_l..c..,_so_m_e_ro_u_nd_ed_co_bb_les---',,_s_at_u_rat_ed g Silty Clay (CL-ML), reddish yellow 7.5YR 6/8, hard, low plasticity 1- Silty Clay (CL-ML), dark gray 7.5YR 4/1, hard, low plasticity j en Bottom of borehole at 30.5 feet. 8!;l!...._____________________________________________________.

WELL NUMBER W-123 ASCOM TOTAL DEPTH 35.5 FT BGS PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 07/19/2021 COMPLETED 07/20/2021 SURVEYING BY/DATE AECOM/ 08-16-21 DRILLING CONTRACTOR SAEDACCO EASTING 744647.8 NORTHING 2024283.69 DRILLING EQUIPMENT Geoprobe 8140 LS Sonic GROUND ELEVATION 136.3 ft CASING ELEVATION 136.05 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Jeremy Grant CHECKED BY Chuck Suddeth CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S li::2 a. w 6 .eClii: a.o MATERIAL DESCRIPTION C: w- :!!: 0

                            ~...J Cl     c'5   (.)

w 0:: (!) I [ij _j_ 0 ___L_

0.00 1.00 Gravel (GW)

Sandy Silt (ML), reddish yellow 7.5YR 6/8 and light gray 7.5YR 7/1, fine to medium grained sand, few clay, dry 136.3 135.3 Well Casing Diameter: 2 in 0-29 ft bgs ___L_ 0.2 1.0 7.00 Sandy Silt (ML), yellow 10YR 7/6 and light gray 7.5YR 7/1, fine to medium 129.3 grained sand, dry to moist 9.00 Sandy Silt (ML), reddish yellow 7.5YR 6/8 and light gray 7.5YR 7/1, fine to 127.3 medium grained, saturated r 126.3 Sand (SW), yellow 10YR 7/6 and light gray 10YR 7/1, fine to medium

rOO' grained, little silt, saturated 0.2 f 1300 Sand (SW), very pale brown 10YR 8/3, fine to coarse grained, few silt, well graded 123.3 0.4 :::: 16.00 Sand (SW), very pale brown 10YR 8/3, fine to coarse grained, little 120.3 subangular to subrounded gravel, few silt, well graded r 119.3

"'---1.!L_ Sand (SW), very pale brown 10YR 8/3, fine to coarse grained, few silt, well ~ graded C! ---1L

                             ~     ~ 22.50  Silty Clay (CL-ML), brown 10YR 5/3, few fine sand                               113.8 Sand (SP), pale brown 2.5Y 8/4 and reddish yellow 7.5YR 6/8, fine grained,      111.3 trace silt Sand (SW), pale brown 2.5Y 8/3, fine to medium grained, trace silt              108.3

roo -

                                                                                                                                     =
                                                                                                                                     =

Well Screen 29 -34 ft bgs Sand (SW), white 7.5YR 8/1, fine to coarse grained, little subrounded to 105.3 - rounded gravel, trace rounded to subrounded cobbles, few silt =

                               !!roo                                                                                                 =
                                                                                                                                     =
                               *

l~i:..n (Continued Next Page)

WELL NUMBER W-123 TOTAL DEPTH 35.5 FT BGS A:COM PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

0 cii

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                                                                                                                        .Q 0     Cl Cl
             <(

Cl) (.) a:

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w Cl) 0::: w 35

                             *rrrr 1~5.0lb.                                                                           lUl .ts Sand (SW), red 2.5YR 4/8, fine to coarse grained, little subrounded to rounded gravel, trace rounded to subrounded cobbles, few silt            iJ..!:!J2 Silty Clay (CL-ML), dark reddish gray 2.5YR 4/1 and reddish yellow 7.5YR 6/8, dry Bottom of borehole at 35.5 feet.

i( (9 ~ 0 g w ~ 0.

,ii I

ii: I LL LL LL (.)

c I

~ Cl) 0

c (9

z ~ w ~ z 9 0 i( (9 C') z 0 ~ z w w ...J 0.

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ii: I LL LL LL (.)

c I 3:

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WELL NUMBER W-124 ASCOM TOTAL DEPTH 34 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 07/22/2021 COMPLETED 07/22/2021 SURVEYING BY/DATE AECOM/ 08-19-21 DRILLING CONTRACTOR SAEDACCO EASTING 744153.42 NORTHING ~2=0=24~8~8=2-~9_ _ _ __ DRILLING EQUIPMENT Geoprobe 8140 LS Sonic GROUND ELEVATION 115.26 ft CASING ELEVATION 117.73 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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a. w

                           .e        a. 0                                                                                                                    C:                    Diameter: 2 in MATERIAL DESCRIPTION
              !     6      Cl        ~ ...J                                                                                                                  0 0 ft bgs

(..) w 0:: ii: (!) I [ij

                                -:: ;* .. 0.00            Silty Sand (SM), dark yellowish brown 10YR 4/6, fine grained, some silt, wet
                                ....:**:*-.*                                                                                                                                       Well Casing Diameter: 2 in 0.0
                                -:: ; * ..                                                                                                                                         0-26 ft bgs 3.00   Sandy Silt (ML), very dark gray 5Y 3/1, little fine sand, moist                                                          Backfill Type: Cement /

12.7 Bentonite Grout 0-22 ft bgs 6.00 Silt (ML), yellowish brown 10YR 5/4 to greenish gray GLEY1 5/1, few fine sand, soft, wet to saturated 0.4 10.00 Silt (ML), dark yellowish brown 10YR 4/4, few fine sand, soft, saturated 0.0

: : : : : : 13.00 Sand (SW), reddish brown 5YR 4/4, fine to coarse grained, trace gravel, well

                                *:*:*:* 14 _00 ~g~ra_d_e_d,_s_at_u_rat_ed_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~

0.0 Sand (SW), light gray 10YR 7/1, medium to coarse grained, few gravel, well graded, saturated 0.0 ](00 Sand (SW), light gray 10YR 7/2, fine to coarse grained, few gravel, well graded, saturated 20.00 Sand and Gravel (SW-GW), grayish brown 10YR 5/2, medium grained to gravel, subangular sand and subrounded gravel, well graded, saturated 0.2 Well Seal Type: Bentonite

                                -:*: ~- ;: 22.50          Silty Sand (SM), dark grayish brown 10YR 4/2, fine to medium grained, little                                             22-24 ft bgs
                                ......                    silt, saturated
                                .. : .,.                                                                                                                                           Filter Pack 0.0   -:: ; . -:=

- - -.*. Type: #2 Filter

                                .. : .,.                                                                                                                                           Sand 24-34 ft bgs
                                -:_:_  ~--- -::

Sand (SP), gray 10YR 5/1, medium grained, poorly graded, saturated Well Screen 0.0 26 -31 ft bgs ...J 3: 0 z Sand (SW), light gray 10YR 7/1, fine to coarse grained, well graded,

                                \ \ 29.00 saturated 0.0

~I g

O.O 31.75 Clay (CH), very dark gray 10YR 3/1, very stiff, moderate plasticity, damp 83.5 )./: ~(?

                               ._........,_,_3_1_.o_o_c_l_ay~(C_L~>~*ye~llow_is_h_br_ow_n_1_0Y_R_5_/6_,_ve_ry~st_iff_,_low_~pl_as_t_ic~ity~,_d_am~p_ _ _ _a_4_.3_ _.*. -:.*.-:.*.

oi:;....:~.:i...--...J...-....1.._...z.1::.&&1..---------------------------....1..-....J...-'-....;......:.;..1...-_ (.)

                                                                                                                                                                            . *:-*     _ _ _ _--1

!;l!....___________________________________________________ Bottom of borehole at 34 feet. __.

WELL NUMBER W-125 ASCOM TOTAL DEPTH 45 FT BGS PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 07/21/2021 COMPLETED 07/21/2021 SURVEYING BY/DATE AECOM/ 08-19-21 DRILLING CONTRACTOR SAEDACCO EASTING 743837.31 NORTHING 2024142.28 DRILLING EQUIPMENT Geoprobe 8140 LS Sonic GROUND ELEVATION 114.65 ft CASING ELEVATION 117.84 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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a. w

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       !     6      Cl       ~ ...J                                                                                                   0 0 ft bgs

(..) w 0:: ii: (!) I [ij o.oo Silt (ML), strong brown 7.5YR 5/6, soft, moist 114.7 Well Casing

0.4 Diameter

2 in 0-40 ft bgs 3.00 Silt (ML), strong brown 7.5YR 5/6, soft, trace clay, moist 111.7 Backfill Type: Cement / Bentonite Grout 0-36 ft bgs 0.4 7.00 Silt (ML), dark yellowish brown 10YR 4/4, few clay, medium stiff, damp 107.7 0.0 0.0 10.00 Clay (CH), dark yellowish brown 10YR 4/4, few silt, medium stiff, high 104.7 plasticity, moist o.o -:*: ~- ;: 12.50 Silty Sand (SM), brown 10YR 5/3, fine grained, little silt, poorly graded, moist 102.2

                        -:_:_  ~--- -::

Sand (SP), gray 5Y 6/1, fine grained, few silt, poorly graded, moist 99. 7 19.00 Silt (ML), dark gray 2.5Y 4/1, micaceous, soft, moist 95. 7 0.0 o.o lrl-,'rl-,t--,,2.,,-2.=50,----------------------------+---iV Silty Clay (CL), dark gray 10YR 4/1, little silt, soft, high plasticity, wet 92.2 Sand (SP), gray 5Y 5/1, fine grained, few silt, poorly graded, saturated 87.7 Clay (CH), dark gray 10YR 4/1, few silt, soft, high plasticity, wet 81.7 (Continued Next Page)

WELL NUMBER W-125 ASCOM TOTAL DEPTH 45 FT BGS PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

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a. w 6 .eClii: a.o MATERIAL DESCRIPTION C:

              !      (.)

w 0::

                                ~...J

(!) I 0 [ij Sand (SP), gray 2.5Y 5/1, fine grained, poorly graded, saturated Well Seal Sand (SW), light gray 10YR 7/1, fine to coarse grained, subangular to Type: Bentonite subrounded, well graded, saturated 36-38 ft bgs Filter Pack Type: #2 Filter Sand 38-45 ft bgs

                               *: *: *:

40.00 Sand (SW), light gray 10 YR 7/1, fine to coarse grained, sub angular to 41 _00 ~s_u_br_o_un_d_e_d_,t_ra_ce_ro_u_n_d_ed_co_b_b_les_,w_e_ll~g~ra_d_e_d_,s_at_u_r_at_ed_ _ _ _ _ _~ Well Screen Sand and Gravel (SW-GW), light gray 10YR 7/1, medium grained to gravel, 40 -45 ft bgs trace cobbles, well graded, saturated n.

(!) 0

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WELL NUMBER W-126 ASCOM TOTAL DEPTH 46 FT BGS PAGE 1 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 07/22/2021 COMPLETED 07/22/2021 SURVEYING BY/DATE AECOM/ 08-19-21 DRILLING CONTRACTOR SAEDACCO EASTING 743747.34 NORTHING 2024650.41 DRILLING EQUIPMENT Geoprobe 8140 LS Sonic GROUND ELEVATION 113.53 ft CASING ELEVATION 115.89 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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(.) J: ...J EC. i: (!) !S Well Casing li::2 a. w .e a.o C: Diameter: 2 in MATERIAL DESCRIPTION w- :!!: 6 Cl ~...J 0 0 ft bgs Cl c'5 (.) w 0:: ii: (!) I [ij o.oo Silt (ML), dark yellowish brown 10YR 4/4, trace clay, medium stiff, moist 113.5 Well Casing

0.0 Diameter

2 in 0-37.5 ft bgs Backfill 0.0 Type: Cement / Bentonite Grout 0-35 ft bgs 0.0

                                        *((( 6.00             Sand (SP), dark yellowish brown 10YR 4/6, fine grained, poorly graded, wet                         107.5

.:.-::.-:::~:

o.o Sand (SW), pink 7.5YR 7/3, fine to medium grained, well graded, saturated 105.5 0.0 o.o Sand (SW), reddish brown 5YR 5/3, fine to medium grained, well graded, 99.5 saturated 0.0 0.0 20.00 Clayey Silt (MH), greenish gray GLEY1 6/1, soft, low plasticity, wet 93.5 0.0

,*:."*,, 22 00 Sand (SP), greenish gray GLEY1 5/1, fine grained, poorly graded, saturated 91.5 0.0 '::-/:::. *

                                        \SX.

O.O i~'.j~,-2-6.-0o--:-:-~d-rat-(~-P-),-pa-le-b-row_n_1_0_Y_R_6_/3-,-fi-ne_g_r-ai-ned-,-tr-ace-s-ilt-,-poo-rl-y-gr-a-de_d_,_ _+-8-7.---.5

...J 3:

0 0.0 i~'.j~~~ Sand (SP), greenish gray GLEY1 5/1, fine grained, poorly graded, saturated 85.0 z tr

~I 0.0 ,*: *...

Sand (SW), greenish gray GLEY1 5/1, fine to medium grained, well graded, 82.5 i8 O.O j; j; j; j 33.50 00 saturated

~~J:'>* light gray 2.5Y 7/1, medium to coarse grained, well graded, 80.0

!;l!i.....,;:=-_.__ _...,___...,___......._...._.....__ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ___,,_ ___,,..,._.__,J..,._.........,W"'e:a:1.:...1S=e,..a:::.I_ __.

(Continued Next Page)

WELL NUMBER W-126 ASCOM TOTAL DEPTH 46 FT BGS PAGE 2 OF 2 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse WELL DIAGRAM

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              !      (..)

w 0::

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(!) I 0 [ij 0.0 Filter Pack 0.0 37.00 Clay (CH), dark gray 10YR 4/1, stiff, high plasticity, moist 76.5 Type: #2 Filter Sand 38.50 Sand and Gravel (SW-GW), gray 5Y 5/1, medium grained to gravel, well 75.0 37-46 ft bgs 0.0 graded, saturated Well Screen 37.5 -42.5 ft bgs 41.00 Sand and Gravel (SW), light gray 5Y 7/1, medium grained to gravel, well 72.5 graded, saturated 0.0 n. (!) ~t=-==-----:c:::1-ay-(;::C::-H::-),-v,-ery-d:-ar7k-g-ra-y--=1-=o:--:Y=R-=3-:-:/1:-,-ve-ry----,st:-:iff=-,:-low-p-=-1as-t::-ic-::ity-,-d:-a-m-p------t-=7:::-o-::-i.o **.-:-.:*. :-:: ::.'*. z 0.0 0 *:.*-:*.*.**::: i==

~                                                                                                                                                                                                      *.. *.*. :-:-.-*.

z Bottom of borehole at 46 feet. w w ...J n.

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WELL NUMBER PZ-1 ASCOM TOTAL DEPTH 17 FT BGS PAGE 1 OF 1 CLIENT Westinghouse PROJECT NAME CFFF RI PROJECT NUMBER 60595649 SITE NAME Westinghouse DATE STARTED 07/21/2021 COMPLETED 07/22/2021 SURVEYING BY/DATE AECOM/ 08-19-21 DRILLING CONTRACTOR SAEDACCO EASTING 743745.67 NORTHING 2024637.13 DRILLING EQUIPMENT Geoprobe 8150 LS Sonic GROUND ELEVATION 113.54 ft CASING ELEVATION 116.27 ft DRILLING METHOD Sonic HOLE DIAMETER(INCHES) _6_ _ _ _ _ _ _ _ _ _ _ _ __ LOGGED BY Chuck Suddeth CHECKED BY Jeremy Grant CASING/SCREEN TYPE Sch. 40 PVC WELL DIAGRAM

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li::2 .e a.o MATERIAL DESCRIPTION C: Diameter: 2 in w- :!!: 6 Cl ~...J 0 0 ft bgs Cl c'5 (.) w 0:: ii: (!) I [ij 0 _j_ o.oo Silt (ML) dark yellowish brown 10YR 4/4, trace clay, medium stiff, moist 113.5 Well Casing

0.0 Diameter

2 in _____L_ 0-7 ft bgs ___L_ i( (!! ____!_ i__L i== 0.0

 ~ ____Q_

z Sand (SP), dark yellowish brown 10YR 4/6, fine grained, poorly graded, wet 107.5

~__I_                                                                                                                                                Well Screen w                                                                                                                                            -
...J
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                                                                                                                                              =

7 -17 ft bgs ii:I 1-9

IL

~__1Q_                                                                                                                                        =

I

I ___..11._ 0.0 10.00 Sand (SW), pink 7.5YR 7/3, fine to medium grained, well graded, saturated 103.5

                                                                                                                                              =
~--1L                                                                                                                                         =

0 a----1.L z =

~--1.L w

0.0

z

 ~ ---1.L                                                                                                                                     =
 ~ ---1.L 15.00  Sand (SW), reddish brown 5YR 5/3, fine to medium grained, well graded, saturated 98.5
                                                                                                                                              =
                                                                                                                                              =

(.) 17 0.0

;;i=-!.!....:i..._ _...J..._...J..._....J&...........&.L.---------------------------....I..-....J...---L---1---------1 Bottom of borehole at 17 feet.

n. (!) 0

i== z~ w w

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Remedial Investigation Report Appendix G Beacon Soil Gas Survey Reports AECOM

Beacon Environmental 2203A Commerce Road, Suite 1 Forest Hill, MD 21050 USA 1.410.838.8780 CERTIFICATE OF ANALYSIS Beacon Proposal No.: 201103R03 Beacon Project No.: 0005503 Project

Description:

Project Site: Westinghouse CFFF Hopkins, SC Client PO No.: 130171 Prepared for: Jeremy Grant AECOM 101 Research Drive Columbia, SC 29203 Ryan W. Schneider Senior Project Manager December 17, 2020 All data meet requirements as specified in the Beacon Environmental Services, Inc. Quality Assurance Project Plan and the results relate only to the samples reported. The work performed was in accordance with ISO/IEC 17025:2017 requirements, except samples were analyzed within a 24-hour tune window. This report shall not be reproduced, except in full, without written approval of the laboratory. Release of the data contained in this data package has been authorized by the Laboratory Director or his signee, as verified by the following signatures: Steven C. Thornley Peter B. Kelly Laboratory Director Interim Quality Manager BEACON-USA.COM Beacon Project 5503 -- Page 1 of 9

2203A Commerce Road, Suite 1 BEACON Map Report Forest Hill, MD 21050 USA 1.410.838.8780 ENVIRONMENTAL AECOM Project Site: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Project Location: Hopkins, SC Beacon Project No.: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 17/2020 Summary of Compound Detections- Mass Lab Sample ID: 0005503-05 SG-3 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Tetrachloroethene 127-18-4 91 C20120909 .D Lab Sample ID: 0005503-06 SG-4 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Tetrachloroethene 127-18-4 39 10 C20120910.D Lab Sample ID: 0005503-09 SG-7 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Tetrachloroethene 127-18-4 25 10 C20120913 .D Lab Sample ID: 0005503-10 SG-8 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Trichloroethene 79-01-6 10 10 C20120914.D Tetrachloroethene 127-18-4 126 10 C20120914.D Lab Sample ID: 0005503-13 SG-11 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Trichloroethene 79-01-6 22 10 C20120917.D Tetrachloroethene 127-18-4 1,680 10 C20120917.D 0005503 Beacon Project 5503 -- Page 2 of 9

2203A Commerce Road, Suite 1 BEACON Map Report Forest Hill, MD 21050 USA 1.410.838.8780 ENVIRONMENTAL AECOM Project Site: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Project Location: Hopkins, SC Beacon Project No.: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 17/2020 Summary of Compound Detections- Mass Lab Sample ID: 0005503-14 SG-12 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Tetrachloroethene 127-18-4 49 C20120918.D Lab Sample ID: 0005503-15 SG-13 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Tetrachloroethene 127-18-4 46 C20120919.D Lab Sample ID: 0005503-17 SG-15 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Trichloroethene 79-01-6 50 10 C20120921.D Tetrachloroethene 127-18-4 506 10 C20120921 .D Lab Sample ID: 0005503-18 SG-15-Dup Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID cis-1,2-Dichloroethene 156-59-2 11 10 C20120922.D Trichloroethene 79-01-6 42 10 C20120922.D Tetrachloroethene 127-18-4 327 10 C20120922.D 0005503 Beacon Project 5503 -- Page 3 of 9

2203A Commerce Road, Suite 1 BEACON Map Report Forest Hill, MD 21050 USA 1.410.838.8780 ENVIRONMENTAL AECOM Project Site: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Project Location: Hopkins, SC Beacon Project No.: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 17/2020 Summary of Compound Detections- Mass Lab Sample ID: 0005503-19 SG-16 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID cis-1,2-Dichloroethene 156-59-2 17 10 C20120923 .D Trichloroethene 79-01 -6 53 10 C20120923 .D Tetrachloroethene 127-18-4 1,040 10 C20120923 .D Lab Sample ID: 0005503-22 SG-19 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Tetrachloroethene 127-18-4 80 C20120926.D Lab Sample ID: 0005503-23 SG-20 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID cis-1,2-Dichloroethene 156-59-2 17 10 C20120927.D Trichloroethene 79-01-6 207 10 C20120927.D Tetrachloroethene 127-18-4 1,300 10 C20120927.D Lab Sample ID: 0005503-24 SG-21 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Tetrachloroethene 127-18-4 12 C20120928.D Lab Sample ID: 0005503-27 SG-24 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Tetrachloroethene 127-18-4 26 10 C20120931.D 0005503 Beacon Project 5503 -- Page 4 of 9

2203A Commerce Road, Suite 1 BEACON Map Report Forest Hill, MD 21050 USA 1.410.838.8780 ENVIRONMENTAL AECOM Project Site: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Project Location: Hopkins, SC Beacon Project No.: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 17/2020 Map Data Summary Table Sample locations are shown on Figure 1. The following table lists frequency of detections from the current survey based on the number of field samples analyzed, the reporting limit, and the maximum value for each mapped compound. The table also includes the transformation and interpolation method for the compound distribution maps provided. Figure LOQ Max Value Transformation Interpolation No. Compound Frequency (ng) (ng) Method Method 2 cis-1,2-Dichloroethene 2 10 17 Log Kriging 3 Trichloroethene 5 10 207 Log Kriging 4 Tetrachloroethene 13 10 1,680 Log Kriging Beacon Project 5503 -- Page 5 of 9

745950 745900 SG-01 SG-02 SG-03 SG..04 745850 SG-05 SG-06 745800

                                                                                                                ...                                                                              SG-12 SG-09 745750 SG-13                     ...                                                        ...

SG-14 SG-16 745700 SG-18 SG-17 745650 SG.22 SG-21 SG-23 SG-25 745600 745550 I 2023800 2023850 2023900 2023950 2024000 2024050 2024 100 2024 150 2024200 2024250 20.24300 2024350 2024400 LEGEND ScaJe in Feet System: Sta e Plane Figure 1 BEACON 0 50 Zone: Datum: Coordinate Units: South Carolina Feet AD 1983 P a.s sh'e oil-Ga:s un*ey Sample Locati ons

!.~03A CDtlllllU'CC Ro.id, Sui te l , Fol'UI mu, ID ~lOSO SA .& PASSIVE SOIL-GAS SAMPLE LOCATION Westinghouse FFF www.Bt'aco11-t.:SA. com l-.U0-838-8 80 Br~coD Pt ojed No . 5503, Dec1"B1be1* !OlO 0

Hopkins, SC Beacon Project 5503 - Page 6 of 9

745950 745900 SG-01 SG-02 SG-03 SG-04 745B50 20 SG-05 SG-06 SG-08 745B00 15

                                                                                                                    ...                                                                                   SG-12 SG-09 745750                                                                                                                                                                                                                      10 SG-13                      ...                                                          17 SG-14                                                      SG-1 6 745700                                                                                                                                                                                                                      5
                                                                                  ...                             SG-18 SG-17 745650                                                                                                                                                                                                                      0 Color Scale (nanograms)

SG-21 SG-22 SG-23 SG-25 745600 745550 2023800 2023850 2023900 2023950 2024000 2024050, 2024100 2024 150 2024200 2024250 202430,Q 2024350 20.24400 LEGEND ScaJe in Feet System: tate Plane Figure 2 BEACON 1,000 NANOGRAMS/SAMPLER 0 50 JOO Zone: Datum: Coordinate -nits: South Carolina Feet AD 1983 P. ssi e oil-Ga:s un*ey cis-1,2-DichJoroethene l~03A Co11111u1*cc Ro, d, Sui te l , For,ut Hill, ID ~IOSO USA ...& PASSIVE SOIL-GAS SAMPLE LOCATION Westinghouse CFFF www.B t'aco11-CSA. eom l-410-838-8 80 B~.acou Prnji,d No . 5503, D~cl'lllbeJ* !OlO Hopkins S C Beacon Project 5503 - Page 7 of 9

745950 745900 SG-01 SG-02 SG-03 SG-04 745B50 220

                                                                                                       ...                       ...                                                                                                          200 SG-05                      SG-06 180 745B00 SG-09 SG-12 160
                                                                                                                                                                                                                                            - 140 120 745750
                                                                                                         ...                                                                                                                                  100 SG-13                      ...

SG-14 80 60 745700 40 SG-17 SG-18 20 745650 0 Color Scale SG-21 SG-22 SG-23 SG-25 (mmograms) 745600 745550 2023800 2023850 2023900 2023950 2024000 2024050, 2024 100 2024 150 2024200 2024250 202430,Q 2024350 20.24400 LEGEND Scale in Feet System: tate Plane Figu:n 3 BEACON 1,000 NANOGRAMSISAMPLER 0 50 JOO Zone: Datum: Co ordinate -nits: South Caro lina Feet AD 1983 P. ssive oil-Ga:s un*ey n *ichloroeth ne .:.~03A Co11111u1*cc Ro, d, Sui te l , For,ul IDll, ID ~1050 USA .& PASSIVE SOIL-GAS SAMPLE LOCATION Westinghouse CFFF www.B t'aco11-CSA. eom l-410-838-8 SO B~.acou Prnji,d . o. 5503, Decrmbr1* !OlO Hopkins, SC Beacon Project 5503 - Page 8 of 9

745950 745900 39 SG-01 SG-02 SG-04 745B50 1,800 SG-05 SG-06 11600 1,400 745B00 49 SG-09 SG-12 1,200 1,000 745750 46

                                                                                                                                                                                                                                     - BOO SG-13                      ...                                                       1,040 SG-14                                                       SG-16
                                                                                                                                                                                                                                     .. 600 745700 400 SG-17 SG-18                                                                                                                   - 200 745650                                                                                                                                                                                                                   0 olor Scale (nanograms) 12 SG-21                                SG-22                        SG-23                                                      SG-25 745600 745550 2023800               2023850            2023900           2023950        2024000        2024050,    2024 100          2024 150     2024200 2024250          202430,0         2024350   20.24400 LEGEND                                                    Scale in Feet                     System:

Zone: tate Plane South Caro liua Figure 4 Passi e Soil-Gas urvey 1,000 NANOGRAMSISAMPLER Datum: AD 1983 Tetrachlo1*oeekene 0 50 JOO Co ordinate -nits: Feet .:.~03A Com nnrcc Ro, d, Sui te l , For,u1 mu, m ~1050 USA ...& PASSIVE SOIL-GAS SAMPLE LOCATION Westinghouse FFF www.B t'aco11-L"SA. eom l-410-838-8 SO B~~cou Prnji,d o. 5503, D~crmbr1* !OlO Hopkins, SC Beacon Project 5503 - Page 9 of 9

Beacon Environmental 2203A Commerce Road, Suite 1 Forest Hill, MD 21050 USA 1.410.838.8780 CERTIFICATE OF ANALYSIS Beacon Proposal No.: 201103R03 Laboratory Work Order: 0005503 Project

Description:

Westinghouse CFFF Hopkins, SC Client PO No.: 130171 Prepared for: Jeremy Grant AECOM 101 Research Drive Columbia, SC 29203 Ryan W. Schneider Senior Project Manager December 15, 2020 All data meet requirements as specified in the Beacon Environmental Quality Assurance Project Plan and the results relate only to the samples reported. The work performed was in accordance with ISO/IEC 17025:2017, except samples were analyzed within a 24-hour tune window. This report shall not be reproduced, except in full, without written approval of the laboratory. Release of the data contained in this data package has been authorized by the Laboratory Director or his signee, as verified by the following signatures: Steven C. Thornley Peter B. Kelly Laboratory Director Interim Quality Manager BEACON-USA.COM Page 1 of 51

Table of Contents Cover Page 1 Sample Summary 4 Case Narrative 6 Analytical Results 7 Summary of Compound Detections 8 Data Summary Table 12 Detailed Analytical Results 13 0005503 Trip-1 14 0005503 SG-1 15 0005503 SG-2 16 0005503 SG-2-Dup 17 0005503 SG-3 18 0005503 SG-4 19 0005503 SG-5 20 0005503 SG-6 21 0005503 SG-7 22 0005503-1 0 - SG-8 23 0005503 SG-9 24 0005503 SG-1 0 25 0005503 SG-11 26 0005503 SG-12 27 0005503 SG-13 28 0005503 SG-14 29 0005503 SG-15 30 0005503 SG-15-Dup 31 Page 2 of 51

Table of Contents (continued) 0005503 SG-16 32 0005503 SG-17 33 0005503 SG-18 34 0005503 SG-19 35 0005503 SG-20 36 0005503 SG-21 37 0005503 SG-22 38 0005503 SG-23 39 0005503 SG-24 40 0005503 SG-25 41 QC Summaries 42 Additional QC Information 46 Certifications 47 Notes and Definitions 48 Sample Management Records 49 Chain of Custody 50 Page 3 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Sample Summary Lab Sample ID Client Sample ID Received Analysis Matrix 0005503-01 Trip-1 12/08/2020 EPA8260C Air Sampler Type: Beacon Passive Sampler 0005503-02 SG-1 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503-03 SG-2 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503-04 SG-2-Dup 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503-05 SG-3 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503-06 SG-4 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503-07 SG-5 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503-08 SG-6 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503-09 SG-7 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503-10 SG-8 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503-11 SG-9 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503-12 SG-10 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503-13 SG-11 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503-14 SG-12 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503-15 SG-13 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503-16 SG-14 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503-17 SG-15 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503-18 SG-15-Dup 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503-19 SG-16 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503-20 SG-17 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503 Page 4 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID Client Sample ID Received Analysis Matrix 0005503-21 SG-18 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503-22 SG-19 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503-23 SG-20 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503-24 SG-21 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503-25 SG-22 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503-26 SG-23 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503-27 SG-24 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005503-28 SG-25 12/08/2020 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler Project Completeness Samples Received: 28 Samples Analyzed: 28 0005503 Page 5 of 51

2203A Commerce Road, Suite 1 Forest Hill, MD 21050 USA CERTIFICATE OF ANALYSIS 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Case Narrative U.S. EPA Method 8260C All samples were analyzed using thermal desorption-gas chromatography/mass spectrometry (TD-GC/MS) instrumentation following U.S. EPA Method 8260C, with laboratory results provided in nanograms (ng). Laboratory QA/QC procedures included internal standards, surrogates, and blanks based on EPA Method 8260C. Analyses and reporting were in accordance with BEACON's Quality Assurance Project Plan. Passive Soil-Gas Survey Notes If sample locations are covered with or near the edge of an impervious surface (e.g., asphalt or concrete), the concentrations of compounds in soil gas are higher than if the surfacing was not present. Therefore, the sample location conditions should be considered when comparing results between locations. Survey findings are exclusive to this project and when the spatial relationships are compared with results of other BEACON Surveys it is necessary to incorporate information from both investigations (e.g., depth to sources, soil types, porosity, soil moisture, presence of impervious surfacing, sample collection times). Reporting Limits The RLs represent a baseline above which results meet laboratory-determined limits of precision and accuracy. Field sample measurements above the upper calibration standard are estimated; however, these values are reported without qualifiers because all reported measurements are relative to each other and are appropriate to meet the survey objectives of locating source areas and vapor intrusion pathways and defining the lateral extent of the contamination. Project Details The work performed was m accordance with ISO/lEC 17025:2017, except samples were analyzed within a 24-hour tune window. End of Case Narrative 0005503 Page 6 of 51

2203A Commerce Road, Suite 1 Forest Hill, MD 21050 USA CERTIFICATE OF ANALYSIS 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Analytical Results 0005503 Page 7 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Summary of Compound Detections - Mass Lab Sample ID: 0005503-05 SG-3 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Tetrachloroethene 127-18-4 91 6.065 10 12/09/2020 17:56 C20120909.D Lab Sample ID: 0005503-06 SG-4 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Tetrachloroethene 127-18-4 39 6.065 10 12/09/2020 18:21 C20120910.D Lab Sample ID: 0005503-09 SG-7 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Tetrachloroethene 127-18-4 25 6.065 10 12/09/2020 19:36 C20120913 .D Lab Sample ID: 0005503-10 SG-8 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Trichloroethene 79-01-6 10 4.452 10 12/09/2020 20:01 C20120914.D Tetrachloroethene 127-18-4 126 6.062 10 12/09/2020 20:01 C20120914.D 0005503 Page 8 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-13 SG-11 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Trichloroethene 79-01 -6 22 4.455 10 12/09/2020 21: 16 C20120917.D Tetrachloroethene 127-18-4 1,680 6.065 10 12/09/2020 21: 16 C20120917.D Lab Sample ID: 0005503-14 SG-12 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Tetrachloroethene 127-18-4 49 6.062 10 12/09/2020 21 :41 C20120918.D Lab Sample ID: 0005503-15 SG-13 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Tetrachloroethene 127-18-4 46 6.062 10 12/09/2020 22:06 C20120919.D Lab Sample ID: 0005503-17 SG-15 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Trichloroethene 79-01 -6 50 4.455 10 12/09/2020 22:56 C20120921.D Tetrachloroethene 127-18-4 506 6.065 10 12/09/2020 22:56 C20120921.D 0005503 Page 9 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-18 SG-15-Dup Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID cis-1,2-Dichloroethene 156-59-2 11 3.330 10 12/09/2020 23 :21 C20120922.D Trichloroethene 79-01-6 42 4.452 IO 12/09/2020 23 :21 C20120922.D Tetrachloroethene 127-18-4 327 6.065 10 12/09/2020 23 :21 C20120922.D Lab Sample ID: 0005503-19 SG-16 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID cis-1,2-Dichloroethene 156-59-2 17 3.324 10 12/09/2020 23 :46 C20120923 .D Trichloroethene 79-01 -6 53 4.452 10 12/09/2020 23:46 C20120923 .D Tetrachloroethene 127-18-4 1,040 6.065 10 12/09/2020 23 :46 C20120923.D Lab Sample ID: 0005503-22 SG-19 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Tetrachloroethene 127-18-4 80 6.065 10 12/ 10/2020 01 :02 C20120926.D Lab Sample ID: 0005503-23 SG-20 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID cis-1,2-Dichloroethene 156-59-2 17 3.327 10 12/ 10/2020 01 :27 C20120927.D Trichloroethene 79-01 -6 207 4.452 10 12/ 10/2020 01 :27 C20120927.D Tetrachloroethene 127-18-4 1,300 6.065 10 12/ 10/2020 01:27 C20120927.D 0005503 Page 10 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-24 SG-21 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Tetrachloroethene 127-18-4 12 6.065 10 12/ l0/2020 01 :52 C20120928.D Lab Sample ID: 0005503-27 SG-24 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Tetrachloroethene 127-18-4 26 6.062 10 12/ l0/2020 03 :07 C20120931.D 0005503 Page 11 of 51

2203A Commerce Road, Suite 1 Forest Hill, MD 21050 USA CERTIFICATE OF ANALYSIS 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Data Summary Table- Mass LOQ Max Value Compound Frequency (ng) (ng) cis-1 ,2-Dichloroethene 2 10 17 Trichloroethene 5 10 207 Tetrachloroethene 13 10 1,680 0005503 Page 12 of 51

2203A Commerce Road, Suite 1 Forest Hill, MD 21050 USA CERTIFICATE OF ANALYSIS 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Detailed Analytical Results 0005503 Page 13 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-01 Trip-1 Method: EPA8260C Air Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 12/09/2020 16:15 C20120905.D I , 1-Dichloroethene 75-35-4 < 10 10 12/09/2020 16:15 C20120905.D 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 12/09/2020 16:15 C20120905.D trans-1,2-Dichloroethene 156-60-5 < 10 10 12/09/2020 16:15 C20120905.D I, 1-Dichloroethane 75-34-3 < IO 10 12/09/2020 16:15 C20120905.D cis-1 ,2-Dichloroethene 156-59-2 < 10 10 12/09/2020 16:15 C20120905.D Chloroform 67-66-3 < 10 10 12/09/2020 16:15 C20120905.D 1,2-Dichloroethane 107-06-2 < 10 10 12/09/2020 16:15 C20120905.D I , I, I-Trichloroethane 71-55-6 < JO 10 12/09/2020 16:15 C20120905.D Carbon Tetrachloride 56-23-5 < IO 10 12/09/2020 16:15 C20120905.D Trichloroethene 79-01-6 < 10 10 12/09/2020 16:15 C20120905.D I, 1,2-Trichloroethane 79-00-5 < 10 10 12/09/2020 16:15 C20120905.D Tetrachloroethene 127-18-4 < 10 10 12/09/2020 16:15 C20120905.D I , I , 1,2-Tetrachloroethane 630-20-6 < 10 10 12/09/2020 16:15 C20120905.D Chlorobenzene 108-90-7 < 10 10 12/09/2020 16:15 C20120905.D 1, 1,2,2-Tetrachloroethane 79-34-5 < IO 10 12/09/2020 16:15 C20120905.D 1,2,3-Trichloropropane 96-18-4 < IO IO 12/09/2020 16:15 C20120905.D 1,3-Dichlorobenzene 541-73-1 < IO IO 12/09/2020 16:15 C20120905.D 1,4-Dichlorobenzene 106-46-7 < 10 10 12/09/2020 16:15 C20120905.D 1,2-Dichlorobenzene 95-50-1 < IO IO 12/09/2020 16:15 C20120905.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 12/09/2020 16:15 C20120905.D 1,2,3-Trichlorobenzene 87-61-6 < IO IO 12/09/2020 16:15 C20120905.D 0005503 Page 14 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-02 SG-1 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 12/09/2020 16:41 C20 I 20906.D I , 1-Dichloroethene 75-35-4 < 10 10 12/09/2020 16:41 C20120906.D 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 12/09/2020 16:41 C20 I 20906.D trans-1,2-Dichloroethene 156-60-5 < 10 10 12/09/2020 16:41 C20120906.D I, 1-Dichloroethane 75-34-3 < IO 10 12/09/2020 16:41 C20120906.D cis-1 ,2-Dichloroethene 156-59-2 < 10 10 12/09/2020 16:41 C20120906.D Chloroform 67-66-3 < 10 10 12/09/2020 16:41 C20120906.D 1,2-Dichloroethane 107-06-2 < 10 10 12/09/2020 16:41 C20 I 20906.D I, I, I-Trichloroethane 71-55-6 < JO 10 12/09/2020 16:41 C20120906.D Carbon Tetrachloride 56-23-5 < IO 10 12/09/2020 16:41 C20 I 20906.D Trichloroethene 79-01-6 < 10 10 12/09/2020 16:41 C20120906.D I, 1,2-Trichloroethane 79-00-5 < 10 10 12/09/2020 16:41 C20120906.D Tetrachloroethene 127-18-4 < IO IO 12/09/2020 16:41 C20 I 20906.D I , I , 1,2-Tetrachloroethane 630-20-6 < 10 10 12/09/2020 16:41 C20120906.D Chlorobenzene 108-90-7 < IO IO 12/09/2020 16:41 C20 I 20906.D 1, 1,2,2-Tetrachloroethane 79-34-5 < IO 10 12/09/2020 16:41 C20120906.D 1,2,3-Trichloropropane 96-18-4 < IO IO 12/09/2020 16:41 C20120906.D 1,3-Dichlorobenzene 541-73-1 < IO IO 12/09/2020 16:41 C20120906.D 1,4-Dichlorobenzene 106-46-7 < 10 10 12/09/2020 16:41 C20120906.D 1,2-Dichlorobenzene 95-50-1 < IO IO 12/09/2020 16:41 C20 I 20906.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 12/09/2020 16:41 C20120906.D 1,2,3-Trichlorobenzene 87-61-6 < IO IO 12/09/2020 16:41 C20120906.D 0005503 Page 15 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-03 SG-2 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 12/09/2020 17:06 C20 I 20907 .D I , 1-Dichloroethene 75-35-4 < 10 10 12/09/2020 17:06 C20120907.D 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 12/09/2020 17:06 C20 I 20907 .D trans-1,2-Dichloroethene 156-60-5 < 10 10 12/09/2020 17:06 C20120907.D I, 1-Dichloroethane 75-34-3 < IO 10 12/09/2020 17:06 C20120907.D cis-1 ,2-Dichloroethene 156-59-2 < 10 10 12/09/2020 17:06 C20120907.D Chloroform 67-66-3 < 10 10 12/09/2020 17:06 C20120907.D 1,2-Dichloroethane 107-06-2 < 10 10 12/09/2020 17:06 C20 I 20907 .D I, I, I-Trichloroethane 71-55-6 < JO 10 12/09/2020 17:06 C20120907.D Carbon Tetrachloride 56-23-5 < IO 10 12/09/2020 17:06 C20 I 20907 .D Trichloroethene 79-01-6 < 10 10 12/09/2020 17:06 C20120907.D I, 1,2-Trichloroethane 79-00-5 < 10 10 12/09/2020 17:06 C20120907.D Tetrachloroethene 127-18-4 < 10 10 12/09/2020 17:06 C20 I 20907 .D I, I , 1,2-Tetrachloroethane 630-20-6 < 10 10 12/09/2020 17:06 C20120907.D Chlorobenzene 108-90-7 < 10 10 12/09/2020 17:06 C20 I 20907 .D 1, 1,2,2-Tetrachloroethane 79-34-5 < IO 10 12/09/2020 17:06 C20120907.D 1,2,3-Trichloropropane 96-18-4 < IO IO 12/09/2020 17:06 C20120907.D 1,3-Dichlorobenzene 541-73-1 < IO IO 12/09/2020 17:06 C20120907.D 1,4-Dichlorobenzene 106-46-7 < 10 IO 12/09/2020 17:06 C20120907.D 1,2-Dichlorobenzene 95-50-1 < IO IO 12/09/2020 17:06 C20 I 20907 .D 1,2,4-Trichlorobenzene 120-82-1 < IO IO 12/09/2020 17:06 C20120907.D 1,2,3-Trichlorobenzene 87-61-6 < IO IO 12/09/2020 17:06 C20120907 .D 0005503 Page 16 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-04 SG-2-Dup Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 12/09/2020 17:31 C20 I 20908.D I , 1-Dichloroethene 75-35-4 < 10 10 12/09/2020 17:31 C20120908.D 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 12/09/2020 17:31 C20 I 20908.D trans-1,2-Dichloroethene 156-60-5 < 10 10 12/09/2020 17:31 C20120908.D I, 1-Dichloroethane 75-34-3 < IO 10 12/09/2020 17:31 C20120908.D cis-1 ,2-Dichloroethene 156-59-2 < 10 10 12/09/2020 17:31 C20120908.D Chloroform 67-66-3 < 10 10 12/09/2020 17:31 C20120908.D 1,2-Dichloroethane 107-06-2 < 10 10 12/09/2020 17:31 C20 I 20908.D I, I, I-Trichloroethane 71-55-6 < JO 10 12/09/2020 17:31 C20120908.D Carbon Tetrachloride 56-23-5 < IO 10 12/09/2020 17:31 C20 I 20908.D Trichloroethene 79-01-6 < 10 10 12/09/2020 17:31 C20120908.D I, 1,2-Trichloroethane 79-00-5 < 10 10 12/09/2020 17:31 C20120908.D Tetrachloroethene 127-18-4 < IO IO 12/09/2020 17:31 C20 I 20908.D I , I , 1,2-Tetrachloroethane 630-20-6 < 10 10 12/09/2020 17:31 C20120908.D Chlorobenzene 108-90-7 < IO IO 12/09/2020 17:31 C20 I 20908.D 1, 1,2,2-Tetrachloroethane 79-34-5 < IO 10 12/09/2020 17:31 C20120908.D 1,2,3-Trichloropropane 96-18-4 < IO IO 12/09/2020 17:31 C20120908.D 1,3-Dichlorobenzene 541-73-1 < IO IO 12/09/2020 17:31 C20120908.D 1,4-Dichlorobenzene 106-46-7 < 10 10 12/09/2020 17:31 C20120908.D 1,2-Dichlorobenzene 95-50-1 < IO IO 12/09/2020 17:31 C20 I 20908.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 12/09/2020 17:31 C20120908.D 1,2,3-Trichlorobenzene 87-61-6 < IO IO 12/09/2020 17:31 C20120908.D 0005503 Page 17 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-05 SG-3 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 12/09/2020 17:56 C20 I 20909 .D I , 1-Dichloroethene 75-35-4 < 10 10 12/09/2020 17:56 C20120909.D 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 12/09/2020 17:56 C20120909.D trans-1,2-Dichloroethene 156-60-5 < 10 10 12/09/2020 17:56 C20120909.D I, 1-Dichloroethane 75-34-3 < IO 10 12/09/2020 17:56 C20120909.D cis-1 ,2-Dichloroethene 156-59-2 < 10 10 12/09/2020 17:56 C20120909.D Chloroform 67-66-3 < 10 10 12/09/2020 17:56 C20120909.D 1,2-Dichloroethane 107-06-2 < 10 10 12/09/2020 17:56 C20120909.D I, I, I-Trichloroethane 71-55-6 < JO 10 12/09/2020 17:56 C20120909.D Carbon Tetrachloride 56-23-5 < IO 10 12/09/2020 17:56 C20120909.D Trichloroethene 79-01-6 < 10 10 12/09/2020 17:56 C20120909.D I, 1,2-Trichloroethane 79-00-5 < 10 10 12/09/2020 17:56 C20120909.D Tetrachloroethene 127-18-4 91 10 12/09/2020 17:56 C20 I 20909 .D I, 1, 1,2-Tetrachloroethane 630-20-6 < 10 10 12/09/2020 17:56 C20120909.D Chlorobenzene 108-90-7 < JO 10 12/09/2020 17:56 C20120909.D I, 1,2,2-Tetrachloroethane 79-34-5 < IO IO 12/09/2020 17:56 C20120909.D 1,2,3-Trichloropropane 96-18-4 < 10 10 12/09/2020 17:56 C20120909.D 1,3-Dichlorobenzene 541-73-1 < IO 10 12/09/2020 17:56 C20120909.D 1,4-Dichlorobenzene 106-46-7 < IO IO 12/09/2020 17:56 C20 I 20909 .D 1,2-Dichlorobenzene 95-50-1 < 10 10 12/09/2020 17:56 C20120909.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 12/09/2020 17:56 C20120909.D 1,2,3-Trichlorobenzene 87-61-6 < 10 IO 12/09/2020 17:56 C20120909.D 0005503 Page 18 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-06 SG-4 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 12/09/2020 18:21 C20120910.D I , 1-Dichloroethene 75-35-4 < 10 10 12/09/2020 18:21 C20120910.D 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 12/09/2020 18:21 C20120910.D trans-1,2-Dichloroethene 156-60-5 < 10 10 12/09/2020 18:21 C20120910.D I, 1-Dichloroethane 75-34-3 < IO 10 12/09/2020 18:21 C20120910.D cis-1 ,2-Dichloroethene 156-59-2 < 10 10 12/09/2020 18:21 C20120910.D Chloroform 67-66-3 < 10 10 12/09/2020 18:21 C20120910.D 1,2-Dichloroethane 107-06-2 < 10 10 12/09/2020 18:21 C20I20910.D I, I, I-Trichloroethane 71-55-6 < JO 10 12/09/2020 18:21 C20120910.D Carbon Tetrachloride 56-23-5 < IO 10 12/09/2020 18:21 C20 I 209 I 0.D Trichloroethene 79-01-6 <10 10 12/09/2020 18:21 C20120910.D I, 1,2-Trichloroethane 79-00-5 < 10 10 12/09/2020 18:21 C20120910.D Tetrachloroethene 127-18-4 39 IO 12/09/2020 18:21 C20120910.D I, 1, 1,2-Tetrachloroethane 630-20-6 < IO IO 12/09/2020 18:21 C20120910.D Chlorobenzene 108-90-7 < JO 10 12/09/2020 18:21 C20120910.D I, 1,2,2-Tetrachloroethane 79-34-5 < IO IO 12/09/2020 18:21 C20120910.D 1,2,3-Trichloropropane 96-18-4 < IO IO 12/09/2020 18:21 C20120910.D 1,3-Dichlorobenzene 541-73-1 < IO 10 12/09/2020 18:21 C20120910.D 1,4-Dichlorobenzene 106-46-7 < IO IO 12/09/2020 18:21 C20120910.D 1,2-Dichlorobenzene 95-50-1 < 10 10 12/09/2020 18:21 C20120910.D 1,2,4-Trichlorobenzene 120-82-1 < IO 10 12/09/2020 18:21 C20 I 209 I 0.D 1,2,3-Trichlorobenzene 87-61-6 < IO IO 12/09/2020 18:21 C20120910.D 0005503 Page 19 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-07 SG-5 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 12/09/2020 18:46 C20120911.D I , 1-Dichloroethene 75-35-4 < 10 10 12/09/2020 18:46 C20120911.D 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 12/09/2020 18:46 C20I20911 .D trans-1,2-Dichloroethene 156-60-5 < 10 10 12/09/2020 18:46 C20120911.D I, 1-Dichloroethane 75-34-3 < IO 10 12/09/2020 18:46 C20120911.D cis-1 ,2-Dichloroethene 156-59-2 < 10 10 12/09/2020 18:46 C20120911.D Chloroform 67-66-3 < 10 10 12/09/2020 18:46 C20120911.D 1,2-Dichloroethane 107-06-2 < 10 10 12/09/2020 18:46 C20120911 .D I , I, I-Trichloroethane 71-55-6 < JO 10 12/09/2020 18:46 C20120911.D Carbon Tetrachloride 56-23-5 < IO 10 12/09/2020 18:46 C20120911.D Trichloroethene 79-01-6 < 10 10 12/09/2020 18:46 C20120911.D I, 1,2-Trichloroethane 79-00-5 < 10 10 12/09/2020 18:46 C20120911.D Tetrachloroethene 127-18-4 < 10 10 12/09/2020 18:46 C20120911.D I , I , 1,2-Tetrachloroethane 630-20-6 < 10 10 12/09/2020 18:46 C20120911.D Chlorobenzene 108-90-7 < 10 10 12/09/2020 18:46 C20I20911 .D 1, 1,2,2-Tetrachloroethane 79-34-5 < IO 10 12/09/2020 18:46 C20120911.D 1,2,3-Trichloropropane 96-18-4 < IO 10 12/09/2020 18:46 C20120911.D 1,3-Dichlorobenzene 541-73-1 < IO 10 12/09/2020 18:46 C20120911.D 1,4-Dichlorobenzene 106-46-7 < 10 10 12/09/2020 18:46 C20120911.D 1,2-Dichlorobenzene 95-50-1 < IO IO 12/09/2020 18:46 C20I20911 .D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 12/09/2020 18:46 C20120911.D 1,2,3-Trichlorobenzene 87-61-6 < IO 10 12/09/2020 18:46 C20120911.D 0005503 Page 20 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-08 SG-6 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 12/09/2020 19:11 C20120912.D I , 1-Dichloroethene 75-35-4 < 10 10 12/09/2020 19:11 C20120912.D 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 12/09/2020 19:11 C20120912.D trans-1,2-Dichloroethene 156-60-5 < 10 10 12/09/2020 19:11 C20120912.D I, 1-Dichloroethane 75-34-3 < 10 10 12/09/2020 19:11 C20120912.D cis-1 ,2-Dichloroethene 156-59-2 < 10 10 12/09/2020 19:11 C20120912.D Chloroform 67-66-3 < JO 10 12/09/2020 19:11 C20120912.D 1,2-Dichloroethane 107-06-2 < 10 10 12/09/2020 19:11 C20120912.D I, I, I-Trichloroethane 71-55-6 < JO 10 12/09/2020 19:11 C20120912.D Carbon Tetrachloride 56-23-5 < 10 10 12/09/2020 19:11 C20 I 209 I 2.D Trichloroethene 79-01-6 < 10 10 12/09/2020 19:11 C20120912.D I, 1,2-Trichloroethane 79-00-5 < 10 10 12/09/2020 19:11 C20120912.D Tetrachloroethene 127-18-4 < 10 10 12/09/2020 19:11 C20120912.D I, I , 1,2-Tetrachloroethane 630-20-6 < 10 10 12/09/2020 19:11 C20120912.D Chlorobenzene 108-90-7 < JO 10 12/09/2020 19:11 C20120912.D 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 12/09/2020 19:11 C20120912.D 1,2,3-Trichloropropane 96-18-4 < 10 10 12/09/2020 19:11 C20120912.D 1,3-Dichlorobenzene 541-73-1 < 10 10 12/09/2020 19:11 C20120912.D 1,4-Dichlorobenzene 106-46-7 < 10 10 12/09/2020 19:11 C20120912.D 1,2-Dichlorobenzene 95-50-1 < 10 10 12/09/2020 19:11 C20120912.D 1,2,4-Trichlorobenzene 120-82-1 < JO 10 12/09/2020 19:11 C20120912.D 1,2,3-Trichlorobenzene 87-61-6 < JO 10 12/09/2020 19:11 C201209 I 2.D 0005503 Page 21 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-09 SG-7 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 12/09/2020 19:36 C20120913.D I , 1-Dichloroethene 75-35-4 < 10 10 12/09/2020 19:36 C20120913.D 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 12/09/2020 19:36 C20120913.D trans-1,2-Dichloroethene 156-60-5 < 10 10 12/09/2020 19:36 C20120913.D I, 1-Dichloroethane 75-34-3 < IO 10 12/09/2020 19:36 C20120913.D cis-1 ,2-Dichloroethene 156-59-2 < 10 10 12/09/2020 19:36 C20120913.D Chloroform 67-66-3 < 10 10 12/09/2020 19:36 C20120913.D 1,2-Dichloroethane 107-06-2 < 10 10 12/09/2020 19:36 C20120913.D I, I, I-Trichloroethane 71-55-6 < JO 10 12/09/2020 19:36 C20120913.D Carbon Tetrachloride 56-23-5 < IO 10 12/09/2020 19:36 C20120913.D Trichloroethene 79-01-6 <10 10 12/09/2020 19:36 C20120913.D I, 1,2-Trichloroethane 79-00-5 < 10 10 I 2/09/2020 19:36 C20120913.D Tetrachloroethene 127-18-4 25 10 12/09/2020 19:36 C20120913.D I, 1, 1,2-Tetrachloroethane 630-20-6 < 10 10 12/09/2020 19:36 C20120913.D Chlorobenzene 108-90-7 < JO 10 12/09/2020 19:36 C20120913.D I, 1,2,2-Tetrachloroethane 79-34-5 < IO IO I 2/09/2020 I 9:36 C20120913.D 1,2,3-Trichloropropane 96-18-4 < 10 10 12/09/2020 19:36 C20120913.D 1,3-Dichlorobenzene 541-73-1 < IO 10 I 2/09/2020 19:36 C20120913.D 1,4-Dichlorobenzene 106-46-7 < IO IO I 2/09/2020 19:36 C20120913.D 1,2-Dichlorobenzene 95-50-1 < 10 10 12/09/2020 19:36 C20120913.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 12/09/2020 19:36 C20120913.D 1,2,3-Trichlorobenzene 87-61-6 < 10 IO 12/09/2020 19:36 C20120913.D 0005503 Page 22 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-10 SG-8 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 12/09/2020 20:01 C20120914.D I , 1-Dichloroethene 75-35-4 < 10 10 12/09/2020 20:01 C20120914.D 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 12/09/2020 20:01 C20120914.D trans-1,2-Dichloroethene 156-60-5 < 10 10 12/09/2020 20:01 C20120914.D I, 1-Dichloroethane 75-34-3 < IO 10 12/09/2020 20:01 C20120914.D cis-1 ,2-Dichloroethene 156-59-2 < 10 10 12/09/2020 20:01 C20120914.D Chloroform 67-66-3 < IO 10 12/09/2020 20:01 C20120914.D 1,2-Dichloroethane 107-06-2 < 10 10 12/09/2020 20:01 C20120914.D I, I, I-Trichloroethane 71-55-6 < JO 10 12/09/2020 20:01 C20120914.D Carbon Tetrachloride 56-23-5 < IO 10 12/09/2020 20:01 C20120914.D Trichloroethene 79-01-6 10 IO 12/09/2020 20:01 C20120914.D 1, 1,2-Trichloroethane 79-00-5 < 10 10 12/09/2020 20:01 C20120914.D Tetrachloroethene 127-18-4 126 10 12/09/2020 20:01 C20120914.D I , I, 1,2-Tetrachloroethane 630-20-6 < 10 10 12/09/2020 20:01 C20120914.D Chlorobenzene 108-90-7 < IO IO I 2/09/2020 20:01 C20120914.D 1, 1,2,2-Tetrachloroethane 79-34-5 <IO IO 12/09/2020 20:01 C20120914.D 1,2,3-Trichloropropane 96-18-4 < IO 10 12/09/2020 20:01 C20120914.D 1,3-Dichlorobenzene 541-73-1 < 10 10 12/09/2020 20:01 C20120914.D 1,4-Dichlorobenzene 106-46-7 < 10 10 12/09/2020 20:01 C20120914.D 1,2-Dichlorobenzene 95-50-1 < IO 10 12/09/2020 20:01 C20120914.D 1,2,4-Trichlorobenzene 120-82-1 < IO IO 12/09/2020 20:01 C20120914.D 1,2,3-Trichlorobenzene 87-61-6 < IO IO I 2/09/2020 20:0 I C20120914.D 0005503 Page 23 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-11 SG-9 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 12/09/2020 20:26 C20120915.D I , 1-Dichloroethene 75-35-4 < 10 10 12/09/2020 20:26 C20120915.D 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 12/09/2020 20:26 C20120915.D trans-1,2-Dichloroethene 156-60-5 < 10 10 12/09/2020 20:26 C20120915.D I, 1-Dichloroethane 75-34-3 < IO 10 12/09/2020 20:26 C20120915.D cis-1 ,2-Dichloroethene 156-59-2 < 10 10 12/09/2020 20:26 C20120915.D Chloroform 67-66-3 < 10 10 12/09/2020 20:26 C20120915.D 1,2-Dichloroethane 107-06-2 < 10 10 12/09/2020 20:26 C20120915.D I, I, I-Trichloroethane 71-55-6 < JO 10 12/09/2020 20:26 C20120915.D Carbon Tetrachloride 56-23-5 < IO 10 12/09/2020 20:26 C20120915.D Trichloroethene 79-01-6 <10 10 12/09/2020 20:26 C20120915.D I, 1,2-Trichloroethane 79-00-5 < 10 10 I 2/09/2020 20:26 C20120915.D Tetrachloroethene 127-18-4 < 10 10 12/09/2020 20:26 C20120915.D I , I , 1,2-Tetrachloroethane 630-20-6 < 10 10 12/09/2020 20:26 C20120915.D Chlorobenzene 108-90-7 < 10 10 12/09/2020 20:26 C20120915.D 1, 1,2,2-Tetrachloroethane 79-34-5 < IO 10 12/09/2020 20:26 C20120915.D 1,2,3-Trichloropropane 96-18-4 < IO IO I 2/09/2020 20:26 C20120915.D 1,3-Dichlorobenzene 541-73-1 < IO IO 12/09/2020 20:26 C20120915.D 1,4-Dichlorobenzene 106-46-7 < 10 10 12/09/2020 20:26 C20120915.D 1,2-Dichlorobenzene 95-50-1 < IO IO I 2/09/2020 20:26 C20120915.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 12/09/2020 20:26 C20120915.D 1,2,3-Trichlorobenzene 87-61-6 < IO IO I 2/09/2020 20:26 C20120915.D 0005503 Page 24 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-12 SG-10 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 I 2/09/2020 20:51 C20120916.D I , 1-Dichloroethene 75-35-4 < 10 10 12/09/2020 20:51 C20120916.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 I 2/09/2020 20:51 C20120916.D trans-1,2-Dichloroethene 156-60-5 < IO 10 12/09/2020 20:51 C20120916.D I, 1-Dichloroethane 75-34-3 < IO 10 12/09/2020 20:51 C20120916.D cis-1 ,2-Dichloroethene 156-59-2 < 10 10 12/09/2020 20:51 C20120916.D Chloroform 67-66-3 < 10 10 12/09/2020 20:51 C20120916.D 1,2-Dichloroethane 107-06-2 < 10 IO I 2/09/2020 20:51 C20120916.D I, I, I-Trichloroethane 71-55-6 < JO 10 12/09/2020 20:51 C20120916.D Carbon Tetrachloride 56-23-5 < 10 10 12/09/2020 20:51 C20 I 209 I 6.D Trichloroethene 79-01-6 <10 10 12/09/2020 20:51 C20120916.D I, 1,2-Trichloroethane 79-00-5 < 10 10 12/09/2020 20:51 C20120916.D Tetrachloroethene 127-18-4 < 10 10 12/09/2020 20:51 C20120916.D I , I , 1,2-Tetrachloroethane 630-20-6 < 10 10 12/09/2020 20:51 C20120916.D Chlorobenzene 108-90-7 < 10 10 12/09/2020 20:51 C20120916.D 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 12/09/2020 20:51 C20120916.D 1,2,3-Trichloropropane 96-18-4 < 10 10 12/09/2020 20:51 C20120916.D 1,3-Dichlorobenzene 541-73-1 < 10 10 12/09/2020 20:51 C20120916.D 1,4-Dichlorobenzene 106-46-7 < 10 10 12/09/2020 20:51 C20120916.D 1,2-Dichlorobenzene 95-50-1 < 10 10 12/09/2020 20:51 C20120916.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 12/09/2020 20:51 C20120916.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 12/09/2020 20:51 C201209 I 6.D 0005503 Page 25 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-13 SG-11 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 12/09/2020 21:16 C20120917.D I , 1-Dichloroethene 75-35-4 < 10 10 12/09/2020 21:16 C20120917.D 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 12/09/2020 21:16 C20120917.D trans-1,2-Dichloroethene 156-60-5 < 10 10 12/09/2020 21:16 C20120917.D I, 1-Dichloroethane 75-34-3 < IO 10 12/09/2020 21:16 C20120917.D cis-1 ,2-Dichloroethene 156-59-2 < 10 10 12/09/2020 21:16 C20120917.D Chloroform 67-66-3 < 10 10 12/09/2020 21:16 C20120917.D 1,2-Dichloroethane 107-06-2 < 10 10 12/09/2020 21:16 C20120917.D I, I, I-Trichloroethane 71-55-6 < JO 10 12/09/2020 21 :16 C20120917.D Carbon Tetrachloride 56-23-5 < IO 10 12/09/2020 21:16 C20120917.D Trichloroethene 79-01-6 22 IO 12/09/2020 21:16 C20120917.D 1, 1,2-Trichloroethane 79-00-5 < 10 10 12/09/2020 21:16 C20120917.D Tetrachloroethene 127-18-4 1,680 10 12/09/2020 21:16 C20120917.D I , I, 1,2-Tetrachloroethane 630-20-6 < 10 10 12/09/2020 21:16 C20120917.D Chlorobenzene 108-90-7 < IO IO 12/09/2020 21:16 C20120917.D 1, 1,2,2-Tetrachloroethane 79-34-5 <IO IO 12/09/2020 21:16 C20120917.D 1,2,3-Trichloropropane 96-18-4 < IO 10 I 2/09/2020 21 : 16 C20120917.D 1,3-Dichlorobenzene 541-73-1 < IO IO 12/09/2020 21:16 C20120917.D 1,4-Dichlorobenzene 106-46-7 < 10 10 12/09/2020 21: 16 C20120917.D 1,2-Dichlorobenzene 95-50-1 < IO IO 12/09/2020 21:16 C20120917.D 1,2,4-Trichlorobenzene 120-82-1 < IO IO 12/09/2020 21:16 C20120917.D 1,2,3-Trichlorobenzene 87-61-6 < IO IO 12/09/2020 21:16 C20120917.D 0005503 Page 26 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-14 SG-12 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 12/09/2020 21:41 C20120918.D I , 1-Dichloroethene 75-35-4 < 10 10 12/09/2020 21:41 C20120918.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 12/09/2020 21:41 C20120918.D trans-1,2-Dichloroethene 156-60-5 < IO 10 12/09/2020 21:41 C20120918.D I, 1-Dichloroethane 75-34-3 < IO 10 12/09/2020 21:41 C20120918.D cis-1,2-Dichloroethene 156-59-2 < 10 10 12/09/2020 21:41 C20120918.D Chloroform 67-66-3 < 10 10 12/09/2020 21 :41 C20120918.D 1,2-Dichloroethane 107-06-2 < 10 IO 12/09/2020 21:41 C20120918.D I, I, I-Trichloroethane 71-55-6 < JO 10 12/09/2020 21 :41 C20120918.D Carbon Tetrachloride 56-23-5 < 10 10 12/09/2020 21:41 C20 I 209 I 8.D Trichloroethene 79-01-6 <10 10 12/09/2020 21:41 C20120918.D I, 1,2-Trichloroethane 79-00-5 < 10 10 12/09/2020 21:41 C20120918.D Tetrachloroethene 127-18-4 49 10 12/09/2020 21:41 C20120918.D I, 1, 1,2-Tetrachloroethane 630-20-6 < 10 10 12/09/2020 21:41 C20120918.D Chlorobenzene 108-90-7 < JO 10 12/09/2020 21:41 C20120918.D I, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 12/09/2020 21:41 C20120918.D 1,2,3-Trichloropropane 96-18-4 < 10 10 12/09/2020 21:41 C20120918.D 1,3-Dichlorobenzene 541-73-1 < 10 10 12/09/2020 21:41 C20120918.D 1,4-Dichlorobenzene 106-46-7 < 10 10 12/09/2020 21:41 C20120918.D 1,2-Dichlorobenzene 95-50-1 < 10 10 12/09/2020 21:41 C20120918.D 1,2,4-Trichlorobenzene 120-82-1 < 10 IO 12/09/2020 21:41 C20 I 209 I 8.D 1,2,3-Trichlorobenzene 87-61-6 < IO IO 12/09/2020 21:41 C20120918.D 0005503 Page 27 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-15 SG-13 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 I 2/09/2020 22:06 C20120919.D I , 1-Dichloroethene 75-35-4 < 10 10 12/09/2020 22:06 C20120919.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 I 2/09/2020 22:06 C20120919.D trans-1,2-Dichloroethene 156-60-5 < IO 10 12/09/2020 22:06 C20120919.D I, 1-Dichloroethane 75-34-3 < IO 10 12/09/2020 22:06 C20120919.D cis-1 ,2-Dichloroethene 156-59-2 < 10 10 12/09/2020 22:06 C20120919.D Chloroform 67-66-3 < 10 10 12/09/2020 22:06 C20120919.D 1,2-Dichloroethane 107-06-2 < 10 IO I 2/09/2020 22:06 C20120919.D I, I, I-Trichloroethane 71-55-6 < JO 10 12/09/2020 22:06 C20120919.D Carbon Tetrachloride 56-23-5 < IO 10 12/09/2020 22:06 C20120919.D Trichloroethene 79-01-6 <IO 10 12/09/2020 22:06 C20120919.D I, 1,2-Trichloroethane 79-00-5 < 10 10 I 2/09/2020 22:06 C20120919.D Tetrachloroethene 127-18-4 46 IO I 2/09/2020 22:06 C20120919.D I, 1, 1,2-Tetrachloroethane 630-20-6 < IO IO I 2/09/2020 22:06 C20120919.D Chlorobenzene 108-90-7 < IO IO 12/09/2020 22:06 C20120919.D I, 1,2,2-Tetrachloroethane 79-34-5 < IO IO I 2/09/2020 22:06 C20120919.D 1,2,3-Trichloropropane 96-18-4 < IO IO 12/09/2020 22:06 C20120919.D 1,3-Dichlorobenzene 541-73-1 < IO 10 I 2/09/2020 22:06 C20120919.D 1,4-Dichlorobenzene 106-46-7 < IO IO I 2/09/2020 22:06 C20120919.D 1,2-Dichlorobenzene 95-50-1 < IO IO 12/09/2020 22:06 C20120919.D 1,2,4-Trichlorobenzene 120-82-1 < IO IO I 2/09/2020 22:06 C20120919.D 1,2,3-Trichlorobenzene 87-61-6 < IO IO 12/09/2020 22:06 C20120919.D 0005503 Page 28 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-16 SG-14 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 12/09/2020 22:31 C20120920.D I , 1-Dichloroethene 75-35-4 < 10 10 12/09/2020 22:31 C20120920.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 12/09/2020 22:31 C20 I 20920.D trans-1,2-Dichloroethene 156-60-5 < IO 10 12/09/2020 22:31 C20120920.D I, 1-Dichloroethane 75-34-3 < IO 10 12/09/2020 22:31 C20120920.D cis-1 ,2-Dichloroethene 156-59-2 < 10 10 12/09/2020 22:31 C20120920.D Chloroform 67-66-3 < 10 10 12/09/2020 22:31 C20120920.D 1,2-Dichloroethane 107-06-2 < 10 IO 12/09/2020 22:31 C20 I 20920.D I, I, I-Trichloroethane 71-55-6 < JO 10 12/09/2020 22:31 C20120920.D Carbon Tetrachloride 56-23-5 < 10 10 12/09/2020 22:31 C20 I 20920.D Trichloroethene 79-01-6 <10 10 12/09/2020 22:31 C20120920.D I, 1,2-Trichloroethane 79-00-5 < 10 10 12/09/2020 22:31 C20120920.D Tetrachloroethene 127-18-4 < 10 10 12/09/2020 22:31 C20120920.D I , I , 1,2-Tetrachloroethane 630-20-6 < 10 10 12/09/2020 22:31 C20120920.D Chlorobenzene 108-90-7 < 10 10 12/09/2020 22:31 C20 I 20920.D 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 12/09/2020 22:31 C20120920.D 1,2,3-Trichloropropane 96-18-4 < 10 10 12/09/2020 22:31 C20120920.D 1,3-Dichlorobenzene 541-73-1 < 10 10 12/09/2020 22:31 C20120920.D 1,4-Dichlorobenzene 106-46-7 < 10 10 12/09/2020 22:31 C20120920.D 1,2-Dichlorobenzene 95-50-1 < 10 10 12/09/2020 22:31 C20 I 20920.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 12/09/2020 22:31 C20120920.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 12/09/2020 22:31 C20120920.D 0005503 Page 29 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-17 SG-15 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 I 2/09/2020 22:56 C20120921.D I , 1-Dichloroethene 75-35-4 < 10 10 12/09/2020 22:56 C20120921.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 I 2/09/2020 22:56 C20120921.D trans-1,2-Dichloroethene 156-60-5 < IO 10 12/09/2020 22:56 C20120921.D I, 1-Dichloroethane 75-34-3 < IO 10 12/09/2020 22:56 C20120921.D cis-1 ,2-Dichloroethene 156-59-2 < 10 10 12/09/2020 22:56 C20120921.D Chloroform 67-66-3 < 10 10 12/09/2020 22:56 C20120921.D 1,2-Dichloroethane 107-06-2 < 10 IO I 2/09/2020 22:56 C20120921.D I, I, I-Trichloroethane 71-55-6 < JO 10 12/09/2020 22:56 C20120921.D Carbon Tetrachloride 56-23-5 < IO 10 12/09/2020 22:56 C20120921.D Trichloroethene 79-01-6 50 IO 12/09/2020 22:56 C20120921.D 1, 1,2-Trichloroethane 79-00-5 < IO IO 12/09/2020 22:56 C20120921.D Tetrachloroethene 127-18-4 506 IO 12/09/2020 22:56 C20120921.D I , I, 1,2-Tetrachloroethane 630-20-6 < IO IO 12/09/2020 22:56 C20120921.D Chlorobenzene 108-90-7 < IO IO I 2/09/2020 22:56 C20120921.D 1, 1,2,2-Tetrachloroethane 79-34-5 < IO IO 12/09/2020 22:56 C20120921.D 1,2,3-Trichloropropane 96-18-4 < IO 10 I 2/09/2020 22:56 C20120921.D 1,3-Dichlorobenzene 541-73-1 < IO IO I 2/09/2020 22:56 C20120921.D 1,4-Dichlorobenzene 106-46-7 < IO IO 12/09/2020 22:56 C20120921.D 1,2-Dichlorobenzene 95-50-1 < IO IO I 2/09/2020 22:56 C20120921.D 1,2,4-Trichlorobenzene 120-82-1 < IO IO 12/09/2020 22:56 C20120921.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 12/09/2020 22:56 C20120921.D 0005503 Page 30 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-18 SG-15-Dup Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 12/09/2020 23:21 C20 I 20922.D I , 1-Dichloroethene 75-35-4 < 10 10 12/09/2020 23 :21 C20120922.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 12/09/2020 23 :21 C20 I 20922.D trans-1,2-Dichloroethene 156-60-5 < IO 10 12/09/2020 23:21 C20120922.D I, 1-Dichloroethane 75-34-3 < IO 10 12/09/2020 23:21 C20120922.D cis-1,2-Dichloroethene 156-59-2 11 10 12/09/2020 23 :21 C20120922.D Chloroform 67-66-3 < 10 10 12/09/2020 23 :21 C20 I 20922.D 1,2-Dichloroethane 107-06-2 < 10 10 12/09/2020 23 :21 C20120922.D I, 1, 1-Trichloroethane 71-55-6 < 10 10 12/09/2020 23 :21 C20 I 20922.D Carbon Tetrachloride 56-23-5 < IO 10 12/09/2020 23:21 C20120922.D Trichloroethene 79-01-6 42 10 12/09/2020 23:21 C20120922.D I , 1,2-Trichloroethane 79-00-5 < 10 10 12/09/2020 23:21 C20120922.D Tetrachloroethene 127-18-4 327 10 12/09/2020 23:21 C20 I 20922.D I, I, 1,2-Tetrachloroethane 630-20-6 < 10 IO 12/09/2020 23 :21 C20 I 20922.D Chlorobenzene 108-90-7 < IO IO 12/09/2020 23:21 C20120922.D I, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 12/09/2020 23:21 C20120922.D 1,2,3-Trichloropropane 96-18-4 < 10 10 12/09/2020 23 :21 C20120922.D 1,3-Dichlorobenzene 541-73-1 < 10 10 12/09/2020 23 :21 C20120922.D 1,4-Dichlorobenzene 106-46-7 < 10 10 12/09/2020 23:21 C20 I 20922.D 1,2-Dichlorobenzene 95-50-1 < JO 10 12/09/2020 23 :21 C20120922.D 1,2,4-Trichlorobenzene 120-82-1 < IO IO 12/09/2020 23 :21 C20120922.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 12/09/2020 23 :21 C20120922.D 0005503 Page 31 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-19 SG-16 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 12/09/2020 23:46 C20120923.D I , 1-Dichloroethene 75-35-4 < 10 10 12/09/2020 23:46 C20120923.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 12/09/2020 23 :46 C20120923.D trans-1,2-Dichloroethene 156-60-5 < IO 10 12/09/2020 23:46 C20120923.D I, 1-Dichloroethane 75-34-3 < IO 10 12/09/2020 23:46 C20120923.D cis-1,2-Dichloroethene 156-59-2 17 10 12/09/2020 23 :46 C20120923.D Chloroform 67-66-3 < 10 10 12/09/2020 23:46 C20120923.D 1,2-Dichloroethane 107-06-2 < 10 10 12/09/2020 23:46 C20120923.D I, 1, 1-Trichloroethane 71-55-6 < 10 10 12/09/2020 23 :46 C20120923.D Carbon Tetrachloride 56-23-5 < 10 10 12/09/2020 23:46 C20120923.D Trichloroethene 79-01-6 53 10 12/09/2020 23:46 C20120923.D I , 1,2-Trichloroethane 79-00-5 < 10 10 12/09/2020 23:46 C20120923.D Tetrachloroethene 127-18-4 1,040 10 12/09/2020 23:46 C20120923.D I, I, 1,2-Tetrachloroethane 630-20-6 < 10 IO 12/09/2020 23:46 C20120923.D Chlorobenzene 108-90-7 < IO IO 12/09/2020 23:46 C20120923.D I, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 12/09/2020 23:46 C20120923.D 1,2,3-Trichloropropane 96-18-4 < 10 10 12/09/2020 23 :46 C20120923.D 1,3-Dichlorobenzene 541-73-1 < 10 10 12/09/2020 23 :46 C20120923.D 1,4-Dichlorobenzene 106-46-7 < 10 10 12/09/2020 23:46 C20120923.D 1,2-Dichlorobenzene 95-50-1 < JO 10 12/09/2020 23:46 C20120923.D 1,2,4-Trichlorobenzene 120-82-1 < IO IO 12/09/2020 23 :46 C20120923.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 12/09/2020 23 :46 C20120923.D 0005503 Page 32 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-20 SG-17 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 12/ 10/2020 00:11 C20120924.D I , 1-Dichloroethene 75-35-4 < 10 10 12/ 10/2020 00:11 C20120924.D 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 12/ 10/2020 00:11 C20120924.D trans-1,2-Dichloroethene 156-60-5 < 10 10 12/ 10/2020 00:11 C20120924.D I, 1-Dichloroethane 75-34-3 < 10 10 12/ 10/2020 00:11 C20120924.D cis-1 ,2-Dichloroethene 156-59-2 < 10 10 12/ 10/2020 00:11 C20120924.D Chloroform 67-66-3 < 10 10 12/ 10/2020 00: 11 C20120924.D 1,2-Dichloroethane 107-06-2 < 10 10 12/ 10/2020 00:11 C20120924.D I, I, I-Trichloroethane 71-55-6 < JO 10 12/ 10/2020 00:11 C20120924.D Carbon Tetrachloride 56-23-5 < 10 10 12/ 10/2020 00:11 C20120924.D Trichloroethene 79-01-6 <10 10 12/ 10/2020 00:11 C20120924.D I, 1,2-Trichloroethane 79-00-5 < 10 10 12/ 10/2020 00: 11 C20120924.D Tetrachloroethene 127-18-4 < 10 10 12/ 10/2020 00:11 C20120924.D I, I , 1,2-Tetrachloroethane 630-20-6 < 10 10 12/ 10/2020 00: 11 C20120924.D Chlorobenzene 108-90-7 < 10 10 12/ 10/2020 00:11 C20120924.D 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 12/ 10/2020 00:11 C20120924.D 1,2,3-Trichloropropane 96-18-4 < 10 10 12/ 10/2020 00:11 C20120924.D 1,3-Dichlorobenzene 541-73-1 < 10 10 12/ 10/2020 00:11 C20120924.D 1,4-Dichlorobenzene 106-46-7 < 10 10 12/ 10/2020 00: 11 C20120924.D 1,2-Dichlorobenzene 95-50-1 < 10 10 12/ 10/2020 00:11 C20120924.D 1,2,4-Trichlorobenzene 120-82-1 < JO 10 12/ 10/2020 00: 11 C20120924.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 12/ 10/2020 00:11 C20120924.D 0005503 Page 33 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-21 SG-18 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 12/10/2020 00:37 C20120925.D I , 1-Dichloroethene 75-35-4 < 10 10 12/10/2020 00:37 C20120925.D 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 12/10/2020 00:37 C20120925.D trans-1,2-Dichloroethene 156-60-5 < 10 10 12/10/2020 00:37 C20120925.D I, 1-Dichloroethane 75-34-3 < IO 10 12/10/2020 00:37 C20120925.D cis-1 ,2-Dichloroethene 156-59-2 < 10 10 12/10/2020 00:37 C20120925.D Chloroform 67-66-3 < 10 10 12/10/2020 00:37 C20120925.D 1,2-Dichloroethane 107-06-2 < 10 10 12/10/2020 00:37 C20120925.D I, I, I-Trichloroethane 71-55-6 < JO 10 12/10/2020 00:37 C20120925.D Carbon Tetrachloride 56-23-5 < IO 10 12/10/2020 00:37 C20120925.D Trichloroethene 79-01-6 < 10 10 12/10/2020 00:37 C20120925.D I, 1,2-Trichloroethane 79-00-5 < 10 10 12/10/2020 00:37 C20120925.D Tetrachloroethene 127-18-4 < 10 10 12/10/2020 00:37 C20120925.D I , I , 1,2-Tetrachloroethane 630-20-6 < 10 10 12/10/2020 00:37 C20120925.D Chlorobenzene 108-90-7 < 10 10 12/10/2020 00:37 C20120925.D 1, 1,2,2-Tetrachloroethane 79-34-5 < IO 10 12/10/2020 00:37 C20120925.D 1,2,3-Trichloropropane 96-18-4 < IO IO 12/10/2020 00:37 C20120925.D 1,3-Dichlorobenzene 541-73-1 < IO IO 12/10/2020 00:37 C20120925.D 1,4-Dichlorobenzene 106-46-7 < 10 10 12/10/2020 00:37 C20120925.D 1,2-Dichlorobenzene 95-50-1 < IO IO 12/10/2020 00:37 C20120925.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 12/10/2020 00:37 C20120925.D 1,2,3-Trichlorobenzene 87-61-6 < IO IO 12/10/2020 00:37 C20120925.D 0005503 Page 34 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-22 SG-19 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 12/10/2020 01 :02 C20 I 20926.D I , 1-Dichloroethene 75-35-4 < 10 10 12/10/2020 01:02 C20120926.D 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 12/10/2020 01 :02 C20 I 20926.D trans-1,2-Dichloroethene 156-60-5 < 10 10 12/10/2020 01:02 C20120926.D I, 1-Dichloroethane 75-34-3 < IO 10 12/10/2020 0 I :02 C20120926.D cis-1 ,2-Dichloroethene 156-59-2 < 10 10 12/10/2020 01:02 C20120926.D Chloroform 67-66-3 < 10 10 12/10/2020 0 I :02 C20120926.D 1,2-Dichloroethane 107-06-2 < 10 10 12/10/2020 01 :02 C20 I 20926.D I, I, I-Trichloroethane 71-55-6 < JO 10 12/10/2020 0 I :02 C20120926.D Carbon Tetrachloride 56-23-5 < IO 10 12/10/2020 0 I :02 C20 I 20926.D Trichloroethene 79-01-6 <10 10 12/10/2020 01:02 C20120926.D I, 1,2-Trichloroethane 79-00-5 < 10 10 I 2/10/2020 0 I :02 C20120926.D Tetrachloroethene 127-18-4 80 IO I 2/10/2020 0 I :02 C20 I 20926.D I, 1, 1,2-Tetrachloroethane 630-20-6 < IO IO I 2/10/2020 0 I :02 C20 I 20926.D Chlorobenzene 108-90-7 < IO IO 12/10/2020 0 I :02 C20120926.D I, 1,2,2-Tetrachloroethane 79-34-5 < IO IO I 2/10/2020 0 I :02 C20120926.D 1,2,3-Trichloropropane 96-18-4 < IO IO 12/10/2020 01:02 C20120926.D 1,3-Dichlorobenzene 541-73-1 < IO 10 I 2/10/2020 0 I :02 C20120926.D 1,4-Dichlorobenzene 106-46-7 < IO IO I 2/10/2020 0 I :02 C20 I 20926.D 1,2-Dichlorobenzene 95-50-1 < 10 10 12/10/2020 0 I :02 C20120926.D 1,2,4-Trichlorobenzene 120-82-1 < IO 10 12/10/2020 0 I :02 C20 I 20926.D 1,2,3-Trichlorobenzene 87-61-6 < IO IO 12/10/2020 01:02 C20120926.D 0005503 Page 35 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-23 SG-20 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 12/10/2020 01:27 C20120927.D I , 1-Dichloroethene 75-35-4 < 10 10 12/10/2020 01 :27 C20120927.D 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 12/10/2020 01:27 C20120927.D trans-1,2-Dichloroethene 156-60-5 < 10 10 12/10/2020 01:27 C20120927.D I, 1-Dichloroethane 75-34-3 < IO 10 12/10/2020 01:27 C20120927.D cis-1,2-Dichloroethene 156-59-2 17 10 12/10/2020 01:27 C20120927.D Chloroform 67-66-3 < 10 10 12/10/2020 01:27 C20120927.D 1,2-Dichloroethane 107-06-2 < 10 10 12/10/2020 01 :27 C20120927.D 1, 1, 1-Trichloroethane 71-55-6 < 10 10 12/10/2020 01 :27 C20120927.D Carbon Tetrachloride 56-23-5 < 10 10 12/10/2020 01:27 C20120927.D Trichloroethene 79-01-6 207 10 12/10/2020 0 I :27 C20120927.D I , 1,2-Trichloroethane 79-00-5 < 10 10 12/10/2020 0 I :27 C20120927.D Tetrachloroethene 127-18-4 1,300 10 12/10/2020 01:27 C20120927.D 1, 1, 1,2-Tetrachloroethane 630-20-6 < 10 10 12/10/2020 01:27 C20120927.D Chlorobenzene 108-90-7 < 10 IO 12/10/2020 01:27 C20120927.D I, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 12/10/2020 01:27 C20120927.D 1,2,3-Trichloropropane 96-18-4 < 10 10 12/10/2020 01:27 C20120927.D 1,3-Dichlorobenzene 541-73-1 < 10 10 12/10/2020 01 :27 C20120927.D 1,4-Dichlorobenzene 106-46-7 < 10 10 12/10/2020 01:27 C20120927.D 1,2-Dichlorobenzene 95-50-1 < JO 10 12/10/2020 01 :27 C20120927.D 1,2,4-Trichlorobenzene 120-82-1 < IO IO 12/10/2020 01:27 C20120927.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 12/10/2020 01:27 C20120927.D 0005503 Page 36 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-24 SG-21 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 12/10/2020 01:52 C20 I 20928.D I , 1-Dichloroethene 75-35-4 < 10 10 12/10/2020 01:52 C20120928.D 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 12/10/2020 01:52 C20 I 20928.D trans-1,2-Dichloroethene 156-60-5 < 10 10 12/10/2020 01:52 C20120928.D I, 1-Dichloroethane 75-34-3 < IO 10 12/10/2020 01:52 C20120928.D cis-1 ,2-Dichloroethene 156-59-2 < 10 10 12/10/2020 01:52 C20120928.D Chloroform 67-66-3 < 10 10 12/10/2020 01 :52 C20120928.D 1,2-Dichloroethane 107-06-2 < 10 10 12/10/2020 01:52 C20 I 20928.D I, I, I-Trichloroethane 71-55-6 < JO 10 12/10/2020 01 :52 C20120928.D Carbon Tetrachloride 56-23-5 < IO 10 12/10/2020 01:52 C20 I 20928.D Trichloroethene 79-01-6 <10 10 12/10/2020 01:52 C20120928.D I, 1,2-Trichloroethane 79-00-5 < 10 10 12/10/2020 01:52 C20120928.D Tetrachloroethene 127-18-4 12 IO 12/10/2020 01:52 C20 I 20928.D I, 1, 1,2-Tetrachloroethane 630-20-6 < IO IO 12/10/2020 01:52 C20 I 20928.D Chlorobenzene 108-90-7 < IO IO 12/10/2020 01:52 C20120928.D I, 1,2,2-Tetrachloroethane 79-34-5 < IO IO 12/10/2020 01:52 C20120928.D 1,2,3-Trichloropropane 96-18-4 < IO IO 12/10/2020 01:52 C20120928.D 1,3-Dichlorobenzene 541-73-1 < IO 10 12/10/2020 01:52 C20120928.D 1,4-Dichlorobenzene 106-46-7 < IO IO 12/10/2020 01:52 C20 I 20928.D 1,2-Dichlorobenzene 95-50-1 < 10 10 12/10/2020 01:52 C20120928.D 1,2,4-Trichlorobenzene 120-82-1 < IO 10 12/10/2020 01:52 C20 I 20928.D 1,2,3-Trichlorobenzene 87-61-6 < IO IO 12/10/2020 01:52 C20120928.D 0005503 Page 37 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-25 SG-22 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 12/10/2020 02: 17 C20 I 20929 .D I , 1-Dichloroethene 75-35-4 < 10 10 12/10/2020 02: 17 C20120929.D 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 12/10/2020 02: 17 C20120929.D trans-1,2-Dichloroethene 156-60-5 < 10 10 12/10/2020 02: 17 C20120929.D I, 1-Dichloroethane 75-34-3 < IO 10 12/10/2020 02: 17 C20120929.D cis-1 ,2-Dichloroethene 156-59-2 < 10 10 12/10/2020 02: 17 C20120929.D Chloroform 67-66-3 < 10 10 12/10/2020 02: 17 C20120929.D 1,2-Dichloroethane 107-06-2 < 10 10 12/10/2020 02: 17 C20120929.D I, I, I-Trichloroethane 71-55-6 < JO 10 12/10/2020 02: 17 C20120929.D Carbon Tetrachloride 56-23-5 < IO 10 12/10/2020 02: 17 C20120929.D Trichloroethene 79-01-6 <10 10 12/10/2020 02: 17 C20120929.D I, 1,2-Trichloroethane 79-00-5 < 10 10 I 2/10/2020 02: 17 C20120929.D Tetrachloroethene 127-18-4 < 10 10 12/10/2020 02: 17 C20 I 20929 .D I , I , 1,2-Tetrachloroethane 630-20-6 < 10 10 12/10/2020 02: 17 C20120929.D Chlorobenzene 108-90-7 < 10 10 12/10/2020 02: 17 C20120929.D 1, 1,2,2-Tetrachloroethane 79-34-5 < IO 10 12/10/2020 02: 17 C20120929.D 1,2,3-Trichloropropane 96-18-4 < IO IO I 2/10/2020 02: 17 C20120929.D 1,3-Dichlorobenzene 541-73-1 < IO IO 12/10/2020 02: I 7 C20120929.D 1,4-Dichlorobenzene 106-46-7 < 10 10 12/10/2020 02: 17 C20120929.D 1,2-Dichlorobenzene 95-50-1 < IO IO I 2/10/2020 02: I 7 C20120929.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 12/10/2020 02: 17 C20120929.D 1,2,3-Trichlorobenzene 87-61-6 < IO IO I 2/10/2020 02: 17 C20120929.D 0005503 Page 38 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-26 SG-23 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 12/10/2020 02:42 C20120930.D I , 1-Dichloroethene 75-35-4 < 10 10 12/10/2020 02:42 C20120930.D 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 12/10/2020 02:42 C20 I 20930.D trans-1,2-Dichloroethene 156-60-5 < 10 10 12/10/2020 02:42 C20120930.D I, 1-Dichloroethane 75-34-3 < IO 10 12/10/2020 02:42 C20120930.D cis-1 ,2-Dichloroethene 156-59-2 < 10 10 12/10/2020 02:42 C20120930.D Chloroform 67-66-3 < 10 10 12/10/2020 02:42 C20120930.D 1,2-Dichloroethane 107-06-2 < 10 10 12/10/2020 02:42 C20 I 20930.D I, I, I-Trichloroethane 71-55-6 < JO 10 12/10/2020 02:42 C20120930.D Carbon Tetrachloride 56-23-5 < IO 10 12/10/2020 02:42 C20 I 20930.D Trichloroethene 79-01-6 < 10 10 12/10/2020 02:42 C20120930.D I, 1,2-Trichloroethane 79-00-5 < 10 10 I 2/10/2020 02:42 C20120930.D Tetrachloroethene 127-18-4 < 10 10 12/10/2020 02:42 C20120930.D I , I , 1,2-Tetrachloroethane 630-20-6 < 10 10 12/10/2020 02:42 C20120930.D Chlorobenzene 108-90-7 < 10 10 12/10/2020 02:42 C20 I 20930.D 1, 1,2,2-Tetrachloroethane 79-34-5 < IO 10 12/10/2020 02:42 C20120930.D 1,2,3-Trichloropropane 96-18-4 < IO IO I 2/10/2020 02:42 C20120930.D 1,3-Dichlorobenzene 541-73-1 < IO IO 12/10/2020 02:42 C20120930.D 1,4-Dichlorobenzene 106-46-7 < 10 10 12/10/2020 02:42 C20120930.D 1,2-Dichlorobenzene 95-50-1 < IO IO I 2/10/2020 02:42 C20 I 20930.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 12/10/2020 02:42 C20120930.D 1,2,3-Trichlorobenzene 87-61-6 < IO IO I 2/10/2020 02:42 C20120930.D 0005503 Page 39 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-27 SG-24 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 12/10/2020 03:07 C20120931.D I , 1-Dichloroethene 75-35-4 < 10 10 12/10/2020 03:07 C20120931.D 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 12/10/2020 03:07 C20120931.D trans-1,2-Dichloroethene 156-60-5 < 10 10 12/10/2020 03:07 C20120931.D I, 1-Dichloroethane 75-34-3 < IO 10 12/10/2020 03:07 C20120931.D cis-1 ,2-Dichloroethene 156-59-2 < 10 10 12/10/2020 03 :07 C20120931.D Chloroform 67-66-3 < 10 10 12/10/2020 03 :07 C20120931.D 1,2-Dichloroethane 107-06-2 < 10 10 12/10/2020 03:07 C20120931.D I , I, I-Trichloroethane 71-55-6 < JO 10 12/10/2020 03 :07 C20120931.D Carbon Tetrachloride 56-23-5 < IO 10 12/10/2020 03 :07 C20120931.D Trichloroethene 79-01-6 < 10 10 12/10/2020 03 :07 C20120931.D I, 1,2-Trichloroethane 79-00-5 < 10 10 12/1 0/2020 03:07 C20120931.D Tetrachloroethene 127-18-4 26 10 12/10/2020 03 :07 C20120931.D I, 1, 1,2-Tetrachloroethane 630-20-6 < 10 10 12/10/2020 03 :07 C20120931.D Chlorobenzene 108-90-7 < JO 10 12/10/2020 03 :07 C20120931.D I, 1,2,2-Tetrachloroethane 79-34-5 < IO IO 12/10/2020 03 :07 C20120931.D 1,2,3-Trichloropropane 96-18-4 < 10 10 12/10/2020 03:07 C20120931.D 1,3-Dichlorobenzene 541-73-1 < IO 10 12/10/2020 03 :07 C20120931.D 1,4-Dichlorobenzene 106-46-7 < IO IO 12/10/2020 03 :07 C20120931.D 1,2-Dichlorobenzene 95-50-1 < 10 10 12/10/2020 03:07 C20120931.D 1,2,4-Trichlorobenzene 120-82-1 < IO 10 12/10/2020 03:07 C20120931.D 1,2,3-Trichlorobenzene 87-61-6 < IO IO 12/10/2020 03:07 C20120931.D 0005503 Page 40 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Lab Sample ID: 0005503-28 SG-25 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 12/10/2020 03:32 C20120932.D I , 1-Dichloroethene 75-35-4 < 10 10 12/10/2020 03 :32 C20120932.D 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 12/10/2020 03 :32 C20120932.D trans-1,2-Dichloroethene 156-60-5 < 10 10 12/10/2020 03:32 C20120932.D I, 1-Dichloroethane 75-34-3 < IO 10 12/10/2020 03:32 C20120932.D cis-1 ,2-Dichloroethene 156-59-2 < 10 10 12/10/2020 03 :32 C20120932.D Chloroform 67-66-3 < 10 10 12/10/2020 03 :32 C20120932.D 1,2-Dichloroethane 107-06-2 < 10 10 12/10/2020 03:32 C20120932.D I, I, I-Trichloroethane 71-55-6 < JO 10 12/10/2020 03 :32 C20120932.D Carbon Tetrachloride 56-23-5 < IO 10 12/10/2020 03 :32 C20120932.D Trichloroethene 79-01-6 < 10 10 12/10/2020 03 :32 C20120932.D I, 1,2-Trichloroethane 79-00-5 < 10 10 12/10/2020 03:32 C20120932.D Tetrachloroethene 127-18-4 < 10 10 12/10/2020 03:32 C20120932.D I , I , 1,2-Tetrachloroethane 630-20-6 < 10 10 12/10/2020 03 :32 C20120932.D Chlorobenzene 108-90-7 < 10 10 12/10/2020 03:32 C20120932.D 1, 1,2,2-Tetrachloroethane 79-34-5 < IO 10 12/10/2020 03 :32 C20120932.D 1,2,3-Trichloropropane 96-18-4 < IO IO 12/10/2020 03:32 C20120932.D 1,3-Dichlorobenzene 541-73-1 < IO IO 12/10/2020 03 :32 C20120932.D 1,4-Dichlorobenzene 106-46-7 < 10 IO 12/10/2020 03:32 C20120932.D 1,2-Dichlorobenzene 95-50-1 < IO IO 12/10/2020 03:32 C20120932.D 1,2,4-Trichlorobenzene 120-82-1 < IO IO 12/10/2020 03 :32 C20120932.D 1,2,3-Trichlorobenzene 87-61-6 < IO IO 12/10/2020 03 :32 C20120932.D 0005503 Page 41 of 51

2203A Commerce Road, Suite 1 Forest Hill, MD 21050 USA CERTIFICATE OF ANALYSIS 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 QC Information/Summary 0005503 Page 42 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Soil-Gas Sample Analysis by EPA Method 8260C - Quality Control Summary 20L0021-BLKJ (Lab Blank) File ID: C20120903.D Analyzed: 12/9/20 15 :26 Sampler: Beacon Passive Sampler Result LOQ Analyte CAS# (ng) (ng) Q Vinyl Chloride 75-01-4 <IO IO 1, 1-Dichloroethene 75-35-4 < 10 10 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 trans-1 ,2-Dichloroethene 156-60-5 < 10 10 1, 1-Dichloroethane 75-34-3 < IO 10 cis-1 ,2-Dichloroethene 156-59-2 < IO IO Chloroform 67-66-3 < 10 10 1,2-Dichloroethane 107-06-2 < IO IO 1, 1, 1-Trichloroethane 71-55-6 < IO 10 Carbon Tetrachloride 56-23-5 < 10 IO Trichloroethene 79-01-6 < IO IO 1, 1,2-Trichloroethane 79-00-5 < IO IO Tetrachloroethene 127-18-4 < IO IO 1, 1, 1,2-Tetrachloroethane 630-20-6 < 10 IO Chlorobenzene 108-90-7 < 10 IO 1, 1,2,2-Tetrachloroethane 79-34-5 < IO IO 1,2,3-Trichloropropane 96-18-4 < IO IO 1,3-Dichlorobenzene 541-73-1 < IO IO 1,4-Dichlorobenzene 106-46-7 < 10 IO 1,2-Dichlorobenzene 95-50-1 < IO IO 1,2,4-Trichlorobenzene 120-82-1 < 10 10 1,2,3-Trichlorobenzene 87-61-6 < 10 10 0005503 Page 43 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Sample Duplicate RPD Summary Soil-Gas Sample Analysis by EPA Method 8260C Duplicate Sample: SG-2-Dup (0005503-04) Sample: SG-2 (0005503-03) Average RPD: 0.0% Duplicate Result LOQ Sample Result LOQ RPD Analyte CAS# (ng) (ng) (ng) (ng) (%) Vinyl Chloride 75-01-4 < 10 10 < IO 10 0.0 I, 1-Dichloroethene 75-35-4 < 10 10 < 10 10 0.0 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 < IO 10 0.0 trans-1,2-Dichloroethene 156-60-5 < 10 10 < 10 10 0.0 1, 1-Dichloroethane 75-34-3 < 10 10 < 10 10 0.0 cis-1,2-Dichloroethene 156-59-2 < 10 10 < IO 10 0.0 Chloroform 67-66-3 < 10 10 < JO 10 0.0 1,2-Dichloroethane 107-06-2 < 10 10 < 10 10 0.0 1, 1, 1-Trichloroethane 71-55-6 < 10 10 < 10 10 0.0 Carbon Tetrachloride 56-23-5 < 10 10 < JO 10 0.0 Trichloroethene 79-01-6 < 10 10 < 10 10 0.0 1, 1,2-Trichloroethane 79-00-5 < 10 10 < 10 10 0.0 Tetrachloroethene 127-18-4 < 10 10 < 10 10 0.0 1, 1, 1,2-Tetrachloroethane 630-20-6 < 10 10 < 10 10 0.0 Chlorobenzene 108-90-7 < 10 10 < JO 10 0.0 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 < 10 10 0.0 1,2,3-Trichloropropane 96-18-4 < 10 10 < 10 10 0.0 1,3-Dichlorobenzene 541-73-1 < 10 10 < JO 10 0.0 1,4-Dichlorobenzene 106-46-7 < 10 10 < 10 10 0.0 1,2-Dichlorobenzene 95-50-1 < 10 10 < 10 10 0.0 1,2,4-Trichlorobenzene 120-82-1 < 10 10 < 10 10 0.0 1,2,3-Trichlorobenzene 87-61-6 < 10 10 < 10 10 0.0 0005503 Page 44 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Sample Duplicate RPD Summary Soil-Gas Sample Analysis by EPA Method 8260C Duplicate Sample: SG-15-Dup (0005503-18) Sample: SG-15 (0005503-17) Average RPD: 3.2% Duplicate Result LOQ Sample Result LOQ RPD Analyte CAS# (ng) (ng) (ng) (ng) (%) Vinyl Chloride 75-01-4 < 10 10 < IO 10 0.0 I, 1-Dichloroethene 75-35-4 < 10 10 <1 0 10 0.0 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 < IO 10 0.0 trans-1,2-Dichloroethene 156-60-5 < 10 10 < 10 10 0.0 1, 1-Dichloroethane 75-34-3 < 10 10 < 10 10 0.0 cis-1,2-Dichloroethene 156-59-2 11.0 10 < IO 10 9.5 Chloroform 67-66-3 < 10 10 < JO 10 0.0 1,2-Dichloroethane 107-06-2 <10 10 <10 10 0.0 1, 1, 1-Trichloroethane 71-55-6 < 10 10 < 10 10 0.0 Carbon Tetrachloride 56-23-5 < 10 10 < JO 10 0.0 Trichloroethene 79-01-6 42.0 10 50.0 10 17.4 1, 1,2-Trichloroethane 79-00-5 < 10 10 < 10 10 0.0 Tetrachloroethene 127-18-4 327 10 506 10 43.0 1, 1, 1,2-Tetrachloroethane 630-20-6 < 10 10 <1 0 10 0.0 Chlorobenzene 108-90-7 < 10 10 < JO 10 0.0 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 < 10 10 0.0 1,2,3-Trichloropropane 96-18-4 < 10 10 < 10 10 0.0 1,3-Dichlorobenzene 541-73-1 < 10 10 < JO 10 0.0 1,4-Dichlorobenzene 106-46-7 < 10 10 <1 0 10 0.0 1,2-Dichlorobenzene 95-50-1 < 10 10 < 10 10 0.0 1,2,4-Trichlorobenzene 120-82-1 < 10 10 < 10 10 0.0 1,2,3-Trichlorobenzene 87-61-6 < 10 10 <1 0 10 0.0 0005503 Page 45 of 51

2203A Commerce Road, Suite 1 Forest Hill, MD 21050 USA CERTIFICATE OF ANALYSIS 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Additional QC Information 0005503 Page 46 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Laboratory Certification List Project Certification ID Certification No. Description Expires Required Alaska CS-LAP 19-002 Alaska Department of Environmental Conservation 01/31/2023 DoD-ELAP L20-532 United States Department of Defense Environmental 12/31/2022 Laboratory Accreditation ISO/lEC 17025:2017 L20-532 General Requirements for the competence of Testing and 12/31/2022 Calibration Laboratories NY-NELAC 12097 New York Department of Health 04/01 /2021 Utah-NELAC MD01091 Utah Department of Health 12/31/2021 0005503 Page 47 of 51

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Qualifiers/Notes and Definitions General Definitions: DF Dilution Factor DL Detection Limit LOD Limit of Detection LOQ Limit ofQuantitation NA Not Applicable Q Qualifier RPD Relative Percent Difference RT Retention Times in Minutes RRT Evaluation of Relative Retention Times in RRT Units 3cr Uncertainty

    ~          Compound not on scope of accreditation
   +            values are outside method/contract required QC limits 0           Compound not on scope of accreditation and analyzed with a one-point calibration 0005503                                                                                                          Page 48 of 51

2203A Commerce Road, Suite 1 Forest Hill, MD 21050 USA CERTIFICATE OF ANALYSIS 1.410.838.8780 AECOM Site Name: Westinghouse CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005503 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 12/ 15/2020 Sample Management Records 0005503 Page 49 of 51

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Beacon Environmental 2203A Commerce Road, Suite 1 Forest Hill, MD 21050 USA 1.410.838.8780 CERTIFICATE OF ANALYSIS Beacon Proposal No.: 201103R03 Beacon Project No.: 0005603 Project

Description:

Project Site: Westinghouse-CFFF Hopkins, SC Client PO No.: 130171 Prepared for: Jeremy Grant AECOM 101 Research Drive Columbia, SC 29203 Ryan W. Schneider Senior Project Manager February 12, 2021 All data meet requirements as specified in the Beacon Environmental Services, Inc. Quality Assurance Project Plan and the results relate only to the samples reported. The work performed was in accordance with ISO/IEC 17025:2017 requirements, except samples were analyzed within a 24-hour tune window. This report shall not be reproduced, except in full, without written approval of the laboratory. Release of the data contained in this data package has been authorized by the Laboratory Director or his signee, as verified by the following signatures: Steven C. Thornley Peter B. Kelly Laboratory Director Interim Quality Manager BEACON-USA.COM Beacon Project 5603 -- Page 1 of 14

2203A Commerce Road, Suite 1 BEACON Map Report Forest Hill, MD 21050 USA 1.410.838.8780 ENVIRONMENTAL AECOM Project Site: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Project Location: Hopkins, SC Beacon Project No.: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 12/2021 Summary of Compound Detections- Mass Lab Sample ID: 0005603-02 SG-26 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Tetrachloroethene 127-18-4 74 S21020306.D Lab Sample ID: 0005603-03 SG-27 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Vinyl Chloride 75-01-4 19 10 S21020307.D cis-1,2-Dichloroethene 156-59-2 38 10 S21020307.D Trichloroethene 79-01-6 56 10 S21020307.D Tetrachloroethene 127-18-4 388 10 S21020307.D Lab Sample ID: 0005603-04 SG-27Dup Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Vinyl Chloride 75-01-4 11 10 S21020308.D cis-1,2-Dichloroethene 156-59-2 35 10 S21020308.D Trichloroethene 79-01-6 67 10 S21020308.D Tetrachloroethene 127-18-4 224 10 S21020308.D Lab Sample ID: 0005603-05 SG-28 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Trichloroethene 79-01-6 15 10 S21020309.D Tetrachloroethene 127-18-4 89 10 S21020309.D 0005603 Beacon Project 5603 -- Page 2 of 14

2203A Commerce Road, Suite 1 BEACON Map Report Forest Hill, MD 21050 USA 1.410.838.8780 ENVIRONMENTAL AECOM Project Site: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Project Location: Hopkins, SC Beacon Project No.: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 12/2021 Summary of Compound Detections- Mass Lab Sample ID: 0005603-06 SG-29 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Trichloroethene 79-01-6 241 10 S21020310.D Tetrachloroethene 127-18-4 3,420 10 S21020310.D Lab Sample ID: 0005603-07 SG-30 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Trichloroethene 79-01-6 17 10 S2 l 0203 I l.D Tetrachloroethene 127-18-4 148 10 S2 l 020311.D Lab Sample ID: 0005603-08 SG-31 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Tetrachloroethene 127-18-4 55 S21020312.D Lab Sample ID: 0005603-09 SG-32 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID cis-1,2-Dichloroethene 156-59-2 17 10 S21020313 .D Trichloroethene 79-01-6 298 10 S21020313.D Tetrachloroethene 127-18-4 2,900 10 S2I020313 .D 0005603 Beacon Project 5603 -- Page 3 of 14

2203A Commerce Road, Suite 1 BEACON Map Report Forest Hill, MD 21050 USA 1.410.838.8780 ENVIRONMENTAL AECOM Project Site: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Project Location: Hopkins, SC Beacon Project No.: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 12/2021 Summary of Compound Detections- Mass Lab Sample ID: 0005603-10 SG-33 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID 1,1-Dichloroethene 75-35-4 11 10 S21020314.D trans-1,2-Dichloroethene 156-60-5 38 10 S21020314.D cis-1,2-Dichloroethene 156-59-2 129 10 S21020314.D Trichloroethene 79-01-6 1,710 10 S21020314.D Tetrachloroethene 127-18-4 7,110 10 S21020314.D Lab Sample ID: 0005603-11 SG-34 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Tetrachloroethene 127-18-4 12 10 S21020315.D Lab Sample ID: 0005603-12 SG-35 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Tetrachloroethene 127-18-4 224 10 S21020316.D Lab Sample ID: 0005603-13 SG-36 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Trichloroethene 79-01-6 27 10 S21020317.D Tetrachloroethene 127-18-4 1,080 IO S21020317.D 0005603 Beacon Project 5603 -- Page 4 of 14

2203A Commerce Road, Suite 1 BEACON Map Report Forest Hill, MD 21050 USA 1.410.838.8780 ENVIRONMENTAL AECOM Project Site: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Project Location: Hopkins, SC Beacon Project No.: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 12/2021 Summary of Compound Detections- Mass Lab Sample ID: 0005603-14 SG-37 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID cis-1,2-Dichloroethene 156-59-2 90 10 S21020318.D Trichloroethene 79-01 -6 604 10 S21020318.D Tetrachloroethene 127-18-4 6,680 10 S21020318.D Lab Sample ID: 0005603-15 SG-38 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Vinyl Chloride 75-01-4 59 10 S21020319.D 1,1-Dichloroethene 75-35-4 45 10 S21020319.D 1,1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 11 10 S21020319.D trans-1,2-Dichloroethene 156-60-5 6,720 10 S21020319.D 1,1-Dichloroethane 75-34-3 22 10 S21020319.D cis-1,2-Dichloroethene 156-59-2 5,840 10 S21020319.D Chloroform 67-66-3 18 10 S21020319.D Trichloroethene 79-01 -6 10,100 10 S21020319.D Tetrachloroethene 127-18-4 8,780 10 S21020319.D Lab Sample ID: 0005603-16 SG-39 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Tetrachloroethene 127-18-4 24 10 S21020320.D Lab Sample ID: 0005603-17 SG-40 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Tetrachloroethene 127-18-4 221 S21020321.D 0005603 Beacon Project 5603 -- Page 5 of 14

2203A Commerce Road, Suite 1 BEACON Map Report Forest Hill, MD 21050 USA 1.410.838.8780 ENVIRONMENTAL AECOM Project Site: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Project Location: Hopkins, SC Beacon Project No.: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 12/2021 Summary of Compound Detections- Mass Lab Sample ID: 0005603-18 SG-41 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Trichloroethene 79-01-6 48 10 S21020322.D Tetrachloroethene 127-18-4 1,220 10 S21020322.D Lab Sample ID: 0005603-19 SG-42 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Trichloroethene 79-01-6 20 10 S21020323.D Tetrachloroethene 127-18-4 102 10 S21020323.D Lab Sample ID: 0005603-20 SG-43 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Trichloroethene 79-01-6 33 10 S21020324.D Tetrachloroethene 127-18-4 1,080 10 S21020324.D Lab Sample ID: 0005603-21 SG-44 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Trichloroethene 79-01-6 66 S21020325.D Tetrachloroethene 127-18-4 757 S21020325.D 0005603 Beacon Project 5603 -- Page 6 of 14

2203A Commerce Road, Suite 1 BEACON Map Report Forest Hill, MD 21050 USA 1.410.838.8780 ENVIRONMENTAL AECOM Project Site: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Project Location: Hopkins, SC Beacon Project No.: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 12/2021 Summary of Compound Detections- Mass Lab Sample ID: 0005603-22 SG-45 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID I, 1,2-TrichlorotriOuoroethane (Fr. 113) 76-13-1 12 10 S21020326.D trans-1,2-Dichloroethene 156-60-5 136 10 S21020326.D cis-1,2-Dichloroethene 156-59-2 85 10 S21020326.D Chloroform 67-66-3 17 10 S21020326.D Trichloroethene 79-01-6 2,440 10 S21020326.D Tetrachloroethene 127-18-4 8,590 10 S21020326.D Lab Sample ID: 0005603-23 SG-46 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Tetrachloroethene 127-18-4 121 10 S21020327.D Lab Sample ID: 0005603-25 SG-48 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Vinyl Chloride 75-01-4 10 10 S21020329.D 1,1-Dichloroethene 75-35-4 59 10 S21020329.D trans-1,2-Dichloroethene 156-60-5 245 10 S21020329.D cis-1,2-Dichloroethene 156-59-2 2,820 10 S21020329.D Trichloroethene 79-01-6 4,860 10 S21020329.D Tetrachloroethene 127-18-4 5,210 10 S21020329.D Lab Sample ID: 0005603-26 SG-49 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Trichloroethene 79-01-6 12 10 S21020330.D Tetrachloroethene 127-18-4 57 10 S21020330.D 0005603 Beacon Project 5603 -- Page 7 of 14

2203A Commerce Road, Suite 1 BEACON Map Report Forest Hill, MD 21050 USA 1.410.838.8780 ENVIRONMENTAL AECOM Project Site: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Project Location: Hopkins, SC Beacon Project No.: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 12/2021 Summary of Compound Detections- Mass Lab Sample ID: 0005603-27 SG-49Dup Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Tetrachloroethene 127-18-4 47 S21020331.D Lab Sample ID: 0005603-28 SG-50 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Trichloroethene 79-01 -6 11 10 S21020332.D Tetrachloroethene 127-18-4 118 10 S21020332.D Lab Sample ID: 0005603-29 SG-51 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Tetrachloroethene 127-18-4 24 10 S21020333.D Lab Sample ID: 0005603-30 SG-52 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Chloroform 67-66-3 22 10 S21020334.D Trichloroethene 79-01-6 18 10 S21020334.D Tetrachloroethene 127-18-4 584 IO S21020334.D 0005603 Beacon Project 5603 -- Page 8 of 14

2203A Commerce Road, Suite 1 BEACON Map Report Forest Hill, MD 21050 USA 1.410.838.8780 ENVIRONMENTAL AECOM Project Site: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Project Location: Hopkins, SC Beacon Project No.: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 12/2021 Summary of Compound Detections- Mass Lab Sample ID: 0005603-3 I SG-53 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) File ID Vinyl Chloride 75-01-4 32 10 S21020335.D 1,1-Dichloroethene 75-35-4 68 10 S21020335.D trans-1,2-Dichloroethene 156-60-5 353 10 S21020335.D cis-1,2-Dichloroethene 156-59-2 4,510 10 S21020335.D Trichloroethene 79-01-6 4,240 10 S21020335.D Tetrachloroethene 127-18-4 2,860 10 S21020335.D 0005603 Beacon Project 5603 -- Page 9 of 14

2203A Commerce Road, Suite 1 BEACON Map Report Forest Hill, MD 21050 USA 1.410.838.8780 ENVIRONMENTAL AECOM Project Site: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Project Location: Hopkins, SC Beacon Project No.: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 12/2021 Map Data Summary Table Sample locations are shown on Figure 1. The following table lists number of detections on field samples from the current survey, the reporting limit, and the maximum value for each mapped compound. The table also includes the transformation and interpolation method for the compound distribution maps provided. Figure Number of LOQ Max Value Transformation Interpolation No. Compound Detections (ng) (ng) Method Method 2 cis-1,2-Dichloroethene 8 10 5,840 Log Kriging 3 Trichloroethene 19 10 10,100 Log Kriging 4 Tetrachloroethene 27 10 8,780 Log Kriging Beacon Project 5603-- Page 10 of 14

745950 745900 SG-01 SG-02 SG-03 SG-04 745850 SG-05

SG-06 745800 ... ,L SG-31 SG-27 SG-09
SG-1,0 SG-36 SG-11 SG-28 SG-12

                                                                                                                                                        *             ...                 ...         SG-29 SG-40          SG-36              SG-32 745750                                                                                                                           ...          ...             ....                ...          ...

SG-46 SG-37 SG-33 SG-30 SG-41 SG-13 SG-14 SG-16 SG-1 6 SG-42 SG-60 SG-47 SG-34 SG-43 SG-38 745700 ... ... ... SG-51 SG-44 SG-39 SG-18 SG-52 SG-17 SG-20 SG-48 SG-45 745650

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SG-21

SG-22
SG-23 SG-25 745600 745550 2023800 2023850 2023900 2023950 2024000 2024050 2024100 2024 150 2024200 2024250 202430,0 2024350 20.24400 LEGEND Scale in Fee
ystem: State Plane Figure 1 BEACON 0 50 lOO Zone:

Datum: Coordinate Units: Feet South Carolina AD 1983 P assive oil-Gas u rvey Sample Loc ati.ons

!.~03A Cnnrnurcc Ro.id, Solie l , Fol'ul Hill, ID ~IOS0 USA A PASSIVE SOIL-GAS SAMPLE LOCATION (December 2020)

Westtugbouse CFFF www.Bt'acoo-GSA.eom l--H0-838-8 80 PASSIVE SOIL-GAS SAMP - LOCATION (February 2021) Hopki.Bs, SC Bu,co11 Proj~d o. 5603, F,lH"11n1')* l0~l Beacon Project 5603 -- Page 11 of 14

745 950 74590 0 SG-01 SG-02 SG-03

SG-04 745850 -- - 6,000 SG-05 SG-06 SG-26 5,000 745800 ... 38 4.sG-27 SG-31 SG-12 4,000 SG-09 SG-10 SG-11 SG-28 SG-35 17 SG-40 SG-36 745750 ... _. ... 3,000 SG-46 SG-41 SG-30 SG-13 SG-14 SG-15 SG-42

_. ... 2,000 SG-34 SG-60 SG-47 SG-43 745700 SG--51 SG-39 86 1,000 SG-18 s2~G-45 SG-17

                                                                                                                                                                                             -48 745650                                                                                                                                                                                                                                0 3 SG..49                                             oloi* Scale (nanograms)

SG-21 SG-22 SG-23 SG-25 745600 - 745550 2023800 2023850 2023900 2023950 2024000 2024050 2024 100 2024 150 2024200 20211250 2024300 2024350 2024400 LEGEND Scal e in Fee

ystem : State Plane Figure 2 BEACON 1,000 NANOGRAMS/SAMPLER 0 50 lOO Zone:

Datum: Coordinate Units: Feet South Carolina AD 1983 P assive Soil-Ga:s urvey cis--1,2-Dichloroethene

!.~03A Cnn1111r1-cc Ro.id, Solie 1, Fol'ut Hill, ID ~IOSD USA A PASSIVE SOIL-GAS SAMPLE LOCATION (December2020)

We tiu gbouse CF'.FF www.Bt'acon-L"SA.l'om l--H0-838-8 80 PASSIVE SOIL-GAS SAMPL- LO CATION (Fe bruary 2021) Hopkiru; SC B,111cou Proi * ~I o. 5603, felmia1*y 20~1 Beacon Project 5603 -- Page 12 of 14

745950 745900 SG-01 SG-02 SG-03

SG-04 745850 11,000 SG-05 SG-06 SG-07 - 10,000 SG-26 9,000

                                                                                                                                                                    ._     56 745800 SG-31 A..s G-27                                                        8,000 22 SG-09 SG-10 s

8 241 SG-12 7,000 SG-40 SG-29 6,000 10 11 745750 SG-46
SG-30 5,000 60 53 SG-13 SG-14 11 SG-16 SG-42 JJ 1010/G- 1&
4,000 SG-60
SG-47 SG-43 G-38 SG-34 3,000 745700 SG-39 2,000 2,440 SG-17 SG-18 B6~ G-45

                                                                                                                                                                               *-48 1,000 74565 0                                                                                                                                                             12                                                  0 SG-49 Coloi* Scale (nanograms)

SG-21 SG-22 SG-23 745600 - 745550 2023800 2023850 2023900 2023950 2024000 2024050 2024 100 2024 150 2024200 2024250 2024300 2024350 2024400 LEGEND Scal e in Fee

ystem: State Plane Figm0e 3 BEACON 1,000 NANOGRAM /SAMPLER 0 50 lOO Zone:

Datum: Coordinate Units: South Carolina AD 1983 Feet P. ssive Soil-Gas urvey n *ichloroetheoe .:.~03A Cnm1oucc Ro.id, Soite l , Forut Hlll, ID ~IOSO USA A PASS IVE SOIL-GAS SAMPLE LOCATION (December2020) Westinghouse CFFF www.BPacon-GSA.. com l--410-838-8 80 PASSIVE SOIL-GAS SAMPL- LOCATION (Fe bruary 2021) Hopkiru;, SC B,111coo P'ro."~cl o. 5603, Feb1*un1')* 20~1 Beacon Project 5603 -- Page 13 of 14

745950 745900 SG-01 SG-02 39 SG-04 745850 - - - 9,000 SG-05 SG-06 8,000

                                                                                                                                                                                                                             - 7,000 745800                                                                                                                                                                            49 SG-12                           6,000 SG-09
                                                                                                                                                                                 ,420 G-29                                           5,000 745750 46 SG-1 3 4l                                         4,000 SG-14                                                  G-16   12
                                                                                                                                                                                         ...                                   3,000 SG..34 745700                                                                                                                                              757           24 A.           A.                                            2,000 SG-39 8,590 A.

SG-18 1,000 5 21($G-45 SG-17 SG-48 745650 61, SG..49 0 Coloi* Scale (nanograms) 12 SG-21 SG-22 SG-23

SG-25 745600 -

745550 2023800 2023850 2023900 2023950 2024000 2024050 2024 100 2024 150 2024200 2024250 2024300 2024350 20.24400 LEGEND Scal e in Fee

ystem: Staie Plane B,EACON 1,000 NANOGRAM /SAMP LER 0 50 lOO Zone:

Datum: South Carolina AD 1983 Figure 4 P assive Soil-Gas u rvey Te h*achlo1*oef'ke11e

                                                                     .&  PASSIVE SOIL-GAS SAMPLE LOCATION (December 2020)                                   Coordinate Units: F eet

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Beacon Environmental 2203A Commerce Road, Suite 1 Forest Hill, MD 21050 USA 1.410.838.8780 CERTIFICATE OF ANALYSIS Beacon Proposal No.: 201103R03 Laboratory Work Order: 0005603 Project

Description:

Westinghouse-CFFF Hopkins, SC Client PO No.: 130171 Prepared for: Jeremy Grant AECOM 101 Research Drive Columbia, SC 29203 Ryan W. Schneider Senior Project Manager February 10, 2021 All data meet requirements as specified in the Beacon Environmental Quality Assurance Project Plan and the results relate only to the samples reported. The work performed was in accordance with ISO /IEC 17025:2017, except samples were analyzed within a 24-hour tune window. This report shall not be reproduced, except in full, without written approval of the laboratory. Release of the data contained in this data package has been authorized by the Laboratory Director or his signee, as verified by the following signatures: Steven C. Thornley Peter B. Kelly Laboratory Director Interim Quality Manager BEACON-USA.COM Page 1 of 58

Table of Contents Cover Page 1 Sample Summary 4 Case Narrative 6 Analytical Results 7 Summary of Compound Detections 8 Data Summary Table 16 Detailed Analytical Results 17 0005603 Trip Blank 18 0005603 SG-26 19 0005603 SG-27 20 0005603 SG-27 Dup 21 0005603 SG-28 22 0005603 SG-29 23 0005603 SG-30 24 0005603 SG-31 25 0005603 SG-32 26 0005603-1 0 - SG-33 27 0005603 SG-34 28 0005603 SG-35 29 0005603 SG-36 30 0005603 SG-37 31 0005603 SG-38 32 0005603 SG-39 33 0005603 SG-40 34 0005603 SG-41 35 Page 2 of 58

Table of Contents (continued) 0005603 SG-42 36 0005603 SG-43 37 0005603 SG-44 38 0005603 SG-45 39 0005603 SG-46 40 0005603 SG-4 7 41 0005603 SG-48 42 0005603 SG-49 43 0005603 SG-49 Dup 44 0005603 SG-50 45 0005603 SG-51 46 0005603 SG-52 47 0005603 SG-53 48 QC Summaries 49 Additional QC Information 53 Certifications 54 Notes and Definitions 55 Sample Management Records 56 Chain of Custody 57 Page 3 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Sample Summary Lab Sample ID Client Sample ID Received Analysis Matrix 0005603-01 Trip Blank 02/02/2021 EPA8260C Air Sampler Type: Beacon Passive Sampler 0005603-02 SG-26 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-03 SG-27 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-04 SG-27 Dup 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-05 SG-28 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-06 SG-29 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-07 SG-30 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-08 SG-31 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-09 SG-32 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-10 SG-33 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-11 SG-34 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-12 SG-35 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-13 SG-36 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-14 SG-37 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-15 SG-38 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-16 SG-39 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-17 SG-40 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-18 SG-41 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-19 SG-42 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-20 SG-43 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603 Page 4 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID Client Sample ID Received Analysis Matrix 0005603-21 SG-44 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-22 SG-45 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-23 SG-46 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-24 SG-47 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-25 SG-48 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-26 SG-49 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-27 SG-49 Dup 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-28 SG-50 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-29 SG-51 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-30 SG-52 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler 0005603-31 SG-53 02/02/2021 EPA8260C Soil Gas Sampler Type: Beacon Passive Sampler Project Completeness Samples Received: 31 Samples Analyzed: 31 0005603 Page 5 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Case Narrative U.S. EPA Method 8260C All samples were analyzed using thermal desorption-gas chromatography /mass spectrometry (TD-GC/MS) instrumentation following U.S. EPA Method 8260C, with laboratory results provided in nanograms (ng). Laboratory QA/QC procedures included internal standards, surrogates, and blanks based on EPA Method 8260C. Analyses and reporting were in accordance with BEACON's Quality Assurance Project Plan. Passive Soil-Gas Survey Notes If sample locations are covered with or near the edge of an impervious surface (e.g., asphalt or concrete), the concentrations of compounds in soil gas are higher than if the surfacing was not present. Therefore, the sample location conditions should be considered when comparing results between locations. Survey findings are exclusive to this project and when the spatial relationships are compared with results of other BEACON Surveys it is necessary to incorporate information from both investigations (e.g., depth to sources, soil types, porosity, soil moisture, presence of impervious surfacing, sample collection times). Reporting Limits The RLs represent a baseline above which results meet laboratory-determined limits of precision and accuracy. Field sample measurements above the upper calibration standard are estimated; however, these values are reported without qualifiers because all reported measurements are relative to each other and are appropriate to meet the survey objectives of locating source areas and vapor intrusion pathways and defining the lateral extent of the contamination. Project Details Samples were received in proper condition and laboratory control parameters were met unless otherwise noted below. The work performed was in accordance with ISO/IEC 17025:2017, except samples were analyzed within a 24-hour tune window. End of Case Narrative 0005603 Page 6 of 58

2203A Commerce Road, Suite 1 Forest Hill, MD 21050 USA CERTIFICATE OF ANALYSIS 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Analytical Results 0005603 Page 7 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Summary of Compound Detections - Mass Lab Sample ID: 0005603-02 SG-26 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Tetrachloroethene 127-18-4 74 6.113 10 02/03/2021 14:34 S21020306.D Lab Sample ID: 0005603-03 SG-27 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Vinyl Chloride 75-01-4 19 1.603 10 02/03/2021 14:57 S21020307 .D cis-1,2-Dichloroethene 156-59-2 38 3.230 10 02/03/2021 14:57 S21020307 .D Trichloroethene 79-01-6 56 4.370 10 02/03/2021 14:57 S21020307 .D Tetrachloroethene 127-18-4 388 6.113 10 02/03/2021 14:57 S21020307 .D Lab Sample ID: 0005603-04 SG-27 Dup Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Vinyl Chloride 75-01-4 11 1.603 10 02/03/2021 15:21 S21020308.D cis-1,2-Dichloroethene 156-59-2 35 3.226 10 02/03/2021 15:21 S21020308.D Trichloroethene 79-01 -6 67 4.373 IO 02/03/2021 15 :21 S21020308.D Tetrachloroethene 127-18-4 224 6.113 10 02/03/2021 15:21 S21020308.D Lab Sample ID: 0005603-05 SG-28 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Trichloroethene 79-01-6 15 4.370 10 02/03/2021 15:44 S21020309 .D Tetrachloroethene 127-18-4 89 6.113 10 02/03/2021 15:44 S21020309.D 0005603 Page 8 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-06 SG-29 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Trichloroethene 79-01 -6 241 4.373 10 02/03/2021 16:07 S2I020310.D Tetrachloroethene 127-18-4 3,420 6.116 10 02/03/2021 16:07 S2 I0203 l 0.D Lab Sample ID: 0005603-07 SG-30 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Trichloroethene 79-01-6 17 4.370 10 02/03/2021 16:31 S2 l 020311.D Tetrachloroethene 127-18-4 148 6.113 10 02/03/2021 16:31 S21020311 .D Lab Sample ID: 0005603-08 SG-31 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Tetrachloroethene 127-18-4 55 6.113 10 02/03/2021 16:54 S2I020312.D Lab Sample ID: 0005603-09 SG-32 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID cis-1,2-Dichloroethene 156-59-2 17 3.227 10 02/03/2021 17:17 S2I020313 .D Trichloroethene 79-01 -6 298 4.374 10 02/03/2021 I 7: 17 S2 I 0203 13 .D Tetrachloroethene 127-18-4 2,900 6.116 10 02/03/2021 17:17 S2I020313 .D 0005603 Page 9 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-10 SG-33 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID 1,1-Dichloroethene 75-35-4 11 2.190 10 02/03/2021 17:41 S2 I0203 I 4.D trans-1,2-Dichloroethene 156-60-5 38 2.603 10 02/03/2021 17:41 S2I020314.D cis-1,2-Dichloroethene 156-59-2 129 3.230 10 02/03/2021 17:41 S21020314.D Trichloroethene 79-01-6 1,710 4.374 10 02/03/2021 17:41 S2I020314.D Tetrachloroethene 127-18-4 7,110 6.119 10 02/03/2021 17:41 S2I020314.D Lab Sample ID: 0005603-11 SG-34 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Tetrachloroethene 127-18-4 12 6.110 10 02/03/2021 18:05 S2I020315 .D Lab Sample ID: 0005603-12 SG-35 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Tetrachloroethene 127-18-4 224 6.113 10 02/03/2021 18:28 S2 I020316.D Lab Sample ID: 0005603-13 SG-36 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Trichloroethene 79-01-6 27 4.373 10 02/03/2021 18:52 S2I020317.D Tetrachloroethene 127-18-4 1,080 6.113 10 02/03/2021 18:52 S2 I020317 .D 0005603 Page 10 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-14 SG-37 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID cis-1,2-Dichloroethene 156-59-2 90 3.227 10 02/03/2021 19:15 S2I0203l8.D Trichloroethene 79-01-6 604 4.374 IO 02/03/2021 19:15 S2 I0203 l 8.D Tetrachloroethene 127-18-4 6,680 6.119 10 02/03/2021 19: 15 S2 I 0203 I 8.D Lab Sample ID: 0005603-15 SG-38 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Vinyl Chloride 75-01-4 59 1.603 10 02/03/2021 19:39 S2 l0203 I 9 .D 1,1-Dichloroethene 75-35-4 45 2.190 10 02/03/2021 19:39 S2 I0203 l 9 .D 1,1,2-TricblorotriOuoroethane (Fr.113) 76-1 3-1 11 2.196 10 02/03/2021 19:39 S2I020319.D trans-1,2-Dichloroethene 156-60-5 6,720 2.602 IO 02/03/2021 19:39 S2 I0203 l 9 .D 1,1-Dichloroethane 75-34-3 22 2.867 10 02/03/2021 19:39 S21020319.D cis-1,2-Dichloroethene 156-59-2 5,840 3.230 10 02/03/2021 19:39 S2I020319.D Chloroform 67-66-3 18 3.463 IO 02/03/2021 19:39 S2I020319.D Trichloroethene 79-01 -6 10,100 4.377 10 02/03/2021 19:39 S2 I0203 I 9 .D Tetrachloroethene 127-18-4 8,780 6.116 10 02/03/2021 19:39 S2I020319.D Lab Sample ID: 0005603-16 SG-39 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Tetrachloroethene 127-18-4 24 6.113 10 02/03/2021 20:02 S21020320.D Lab Sample ID: 0005603-17 SG-40 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Tetrachloroethene 127-18-4 221 6.113 02/03/2021 20:25 S2I020321.D 0005603 Page 11 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-18 SG-41 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Trichloroethene 79-01 -6 48 4.373 10 02/03/2021 20:49 S2 I020322.D Tetrachloroethene 127-18-4 1,220 6.113 10 02/03/2021 20:49 S2 I020322.D Lab Sample ID: 0005603-19 SG-42 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Trichloroethene 79-01-6 20 4.374 10 02/03/2021 21:12 S2I020323 .D Tetrachloroethene 127-18-4 102 6.110 10 02/03/2021 21:12 S2I020323 .D Lab Sample ID: 0005603-20 SG-43 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Trichloroethene 79-01 -6 33 4.373 10 02/03/2021 21:35 S2I020324.D Tetrachloroethene 127-18-4 1,080 6.116 10 02/03/2021 21 :35 S21020324.D Lab Sample ID: 0005603-21 SG-44 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Trichloroethene 79-01 -6 66 4.373 10 02/03/2021 22 :00 S21020325.D Tetrachloroethene 127-18-4 757 6.113 10 02/03/2021 22 :00 S2l020325 .D 0005603 Page 12 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-22 SG-45 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID 1,1,2-Tricblorotrifluoroethane (Fr.113) 76- 13-1 12 2.193 10 02/03/2021 22 :23 S2 I020326.D trans-1,2-Dichloroethene 156-60-5 136 2.602 10 02/03/2021 22 :23 S2 I020326.D cis-1,2-Dichloroethene 156-59-2 85 3.230 10 02/03/2021 22 :23 S2l020326.D Chloroform 67-66-3 17 3.460 10 02/03/2021 22 :23 S2 I020326.D Trichloroethene 79-01 -6 2,440 4.373 10 02/03/2021 22:23 S2 I020326.D Tetrachloroethene 127-18-4 8,590 6.116 10 02/03/2021 22:23 S2 I020326.D Lab Sample ID: 0005603-23 SG-46 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Tetrachloroethene 127-18-4 121 6.113 10 02/03/2021 22:46 S2 I020327 .D Lab Sample ID: 0005603-25 SG-48 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Vinyl Chloride 75-01-4 10 1.604 10 02/03/2021 23 :33 S2l020329.D 1,1-Dichloroethene 75-35-4 59 2.190 10 02/03/2021 23 :33 S2I020329.D trans-1,2-Dichloroethene 156-60-5 245 2.603 10 02/03/2021 23:33 S2I020329.D cis-1,2-Dichloroethene 156-59-2 2,820 3.230 10 02/03/2021 23 :33 S2I020329.D Trichloroethene 79-01 -6 4,860 4.374 10 02/03/2021 23 :33 S2I020329.D Tetrachloroethene 127-18-4 5,210 6.116 10 02/03/2021 23:33 S21020329.D 0005603 Page 13 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-26 SG-49 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Trichloroethene 79-01 -6 12 4.370 10 02/03/2021 23:57 S2 I020330.D Tetrachloroethene 127-18-4 57 6.113 10 02/03/2021 23:57 S2 I020330.D Lab Sample ID: 0005603-27 SG-49Dup Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Tetrachloroethene 127-18-4 47 6.110 10 02/04/2021 00:20 S2 I02033 I.D Lab Sample ID: 0005603-28 SG-50 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Trichloroethene 79-01 -6 11 4.374 10 02/04/2021 00:43 S2 I020332.D Tetrachloroethene 127-18-4 118 6.113 10 02/04/2021 00:43 S2 I020332.D Lab Sample ID: 0005603-29 SG-51 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Tetrachloroethene 127-18-4 24 6.113 10 02/04/2021 01 :07 S2I020333 .D 0005603 Page 14 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-30 SG-52 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Chloroform 67-66-3 22 3.463 10 02/04/2021 01 :30 S2 I020334.D Trichloroethene 79-01-6 18 4.377 IO 02/04/2021 01 :30 S2I020334.D Tetrachloroethene 127-18-4 584 6.113 10 02/04/2021 01 :30 S2 I 020334.D Lab Sample ID: 0005603-31 SG-53 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q RT (ng) Analyzed File ID Vinyl Chloride 75-01-4 32 1.600 10 02/04/2021 0 I: 54 S2I020335 .D 1,1-Dichloroethene 75-35-4 68 2.190 10 02/04/2021 0 I :54 S2I020335 .D trans-1,2-Dichloroethene 156-60-5 353 2.603 10 02/04/2021 0 I :54 S2I020335 .D cis-1,2-Dichloroethene 156-59-2 4,510 3.230 IO 02/04/2021 0 I :54 S2I020335 .D Trichloroethene 79-01-6 4,240 4.374 10 02/04/2021 0 I :54 S21020335.D Tetrachloroethene 127-18-4 2,860 6.116 10 02/04/2021 0 I :54 S2I020335 .D 0005603 Page 15 of 58

2203A Commerce Road, Suite 1 Forest Hill, MD 21050 USA CERTIFICATE OF ANALYSIS 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Data Summary Table- Mass LOQ Max Value Compound Frequency (ng) (ng) Vinyl Chloride 4 10 59 1, 1-Dichloroethene 4 10 68 1,1,2-Trichlorotrifluoroethane (Fr.113) 2 10 12 trans-1 ,2-Dichloroethene 5 10 6,720 1, 1-Dichloroethane 1 10 22 cis-1,2-Dichloroethene 8 10 5,840 Chloroform 3 10 22 Trichloroethene 19 10 10,100 Tetrachloroethene 27 10 8,780 0005603 Page 16 of 58

2203A Commerce Road, Suite 1 Forest Hill, MD 21050 USA CERTIFICATE OF ANALYSIS 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Detailed Analytical Results 0005603 Page 17 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-01 Trip Blank Method: EPA8260C Air Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/03/2021 14:11 S21020305.D I , 1-Dichloroethene 75-35-4 < 10 10 02/03/2021 14:11 S21020305.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/03/2021 14: II S21020305.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/03/2021 14:11 S21020305.D I, 1-Dichloroethane 75-34-3 < 10 10 02/03/2021 14:11 S21020305.D cis- 1,2-Dichloroethene 156-59-2 < 10 10 02/03/2021 14:11 S21020305.D Chloroform 67-66-3 < 10 10 02/03/2021 14:11 S21020305.D 1,2-Dichloroethane 107-06-2 < 10 10 02/03/2021 14: II S21020305.D I , I, I-Trichloroethane 71-55-6 < 10 10 02/03/2021 14:11 S21020305.D Carbon Tetrachloride 56-23-5 < 10 10 02/03/2021 14: II S21020305.D Trichloroethene 79-01-6 < 10 10 02/03/2021 14:11 S21020305.D I, 1,2-Trichloroethane 79-00-5 < 10 10 02/03/2021 14:11 S21020305.D Tetrachloroethene 127-18-4 < 10 10 02/03/2021 14: II S21020305.D I , I , 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/2021 14:11 S21020305.D Chlorobenzene 108-90-7 < 10 10 02/03/2021 14: II S21020305.D 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/03/2021 14:11 S21020305.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/03/2021 14:11 S21020305.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/03/2021 14: II S21020305.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/03/2021 14:11 S21020305.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/03/2021 14: II S21020305.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/2021 14:11 S21020305.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 14: II S21020305.D 0005603 Page 18 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-02 SG-26 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/03/2021 14:34 S21020306.D I , 1-Dichloroethene 75-35-4 < 10 10 02/03/2021 14:34 S21020306.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/03/2021 14:34 S21020306.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/03/2021 14:34 S21020306.D I, 1-Dichloroethane 75-34-3 < 10 10 02/03/2021 14:34 S21020306.D cis- 1,2-Dichloroethene 156-59-2 < 10 10 02/03/2021 14:34 S21020306.D Chloroform 67-66-3 < 10 10 02/03/2021 14:34 S21020306.D 1,2-Dichloroethane 107-06-2 < 10 10 02/03/2021 14:34 S2 I 020306.D I , I, I-Trichloroethane 71-55-6 < 10 10 02/03/2021 14:34 S21020306.D Carbon Tetrachloride 56-23-5 < 10 10 02/03/2021 14:34 S21020306.D Trichloroethene 79-01-6 < 10 10 02/03/2021 14:34 S21020306.D I, 1,2-Trichloroethane 79-00-5 < 10 10 02/03/2021 14:34 S21020306.D Tetrachloroethene 127-18-4 74 10 02/03/2021 14:34 S21020306.D I, I, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/2021 14:34 S21020306.D Chlorobenzene 108-90-7 < 10 10 02/03/2021 14:34 S21020306.D I, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/03/2021 14:34 S2 I 020306.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/03/2021 14:34 S21020306.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/03/2021 14:34 S21020306.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/03/2021 14:34 S21020306.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/03/2021 14:34 S21020306.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/2021 14:34 S21020306.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 14:34 S21020306.D 0005603 Page 19 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-03 SG-27 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 19 10 02/03/2021 14:57 S21020307.D 1, 1-Dichloroethene 75-35-4 < 10 10 02/03/2021 14:57 S2 I 020307.D 1,1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/03/2021 14:57 S21020307.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/03/2021 14:57 S21020307 .D 1, 1-Dichloroethane 75-34-3 < 10 10 02/03/2021 14:57 S21020307.D cis-1,2-Dichloroethene 156-59-2 38 10 02/03/2021 14:57 S21020307.D Chloroform 67-66-3 < 10 10 02/03/2021 14:57 S21020307.D 1,2-Dichloroethane 107-06-2 < IO 10 02/03/2021 14:57 S21020307.D 1, 1, 1-Trichloroethane 71-55-6 < 10 10 02/03/2021 14:57 S21020307 .D Carbon Tetrachloride 56-23-5 < 10 10 02/03/2021 14:57 S21020307.D Trichloroethene 79-01-6 56 10 02/03/2021 14:57 S21020307.D 1, 1,2-Trichloroethane 79-00-5 < 10 10 02/03/2021 14:57 S21020307.D Tetrachloroethene 127-18-4 388 10 02/03/2021 14:57 S21020307.D 1, 1, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/2021 14:57 S21020307.D Chlorobenzene 108-90-7 < 10 10 02/03/2021 14:57 S21020307.D 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/03/2021 14:57 S21020307.D 1,2,3-Trichloropropane 96-18-4 < IO 10 02/03/2021 14:57 S21020307.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/03/2021 14:57 S21020307.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/03/2021 14:57 S21020307.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/03/2021 14:57 S21020307.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/2021 14:57 S21020307 .D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 14:57 S21020307.D 0005603 Page 20 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-04 SG-27Dup Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 11 10 02/03/2021 15:21 S21020308.D 1, 1-Dichloroethene 75-35-4 < 10 10 02/03/2021 15:21 S2 I 020308.D 1,1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/03/2021 15:21 S21020308.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/03/2021 15:21 S21020308.D 1, 1-Dichloroethane 75-34-3 < 10 10 02/03/2021 15:21 S21020308.D cis-1,2-Dichloroethene 156-59-2 35 10 02/03/2021 15:21 S21020308.D Chloroform 67-66-3 < 10 10 02/03/2021 15:21 S21020308.D 1,2-Dichloroethane 107-06-2 < IO 10 02/03/2021 15:21 S21020308.D 1, 1, 1-Trichloroethane 71-55-6 < 10 10 02/03/2021 15:21 S21020308.D Carbon Tetrachloride 56-23-5 < 10 10 02/03/2021 15:21 S21020308.D Trichloroethene 79-01-6 67 10 02/03/2021 15:21 S21020308.D 1, 1,2-Trichloroethane 79-00-5 < 10 10 02/03/2021 15:21 S21020308.D Tetrachloroethene 127-18-4 224 10 02/03/2021 15:21 S21020308.D 1, 1, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/2021 15:21 S21020308.D Chlorobenzene 108-90-7 < 10 10 02/03/2021 15:21 S21020308.D 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/03/2021 15:21 S21020308.D 1,2,3-Trichloropropane 96-18-4 < IO 10 02/03/2021 15:21 S21020308.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/03/2021 15:21 S21020308.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/03/2021 15:21 S21020308.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/03/2021 15:21 S21020308.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/2021 15:21 S21020308.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 15:21 S21020308.D 0005603 Page 21 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-05 SG-28 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/03/2021 15:44 S21020309.D I , 1-Dichloroethene 75-35-4 < 10 10 02/03/2021 15:44 S21020309.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/03/2021 15:44 S21020309.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/03/2021 15:44 S21020309.D I, 1-Dichloroethane 75-34-3 < 10 10 02/03/2021 15:44 S21020309.D cis- 1,2-Dichloroethene 156-59-2 < 10 10 02/03/2021 15:44 S21020309.D Chloroform 67-66-3 < 10 10 02/03/2021 15:44 S21020309.D 1,2-Dichloroethane 107-06-2 < 10 10 02/03/2021 15:44 S21020309.D I , I, I-Trichloroethane 71-55-6 < 10 10 02/03/2021 15:44 S21020309.D Carbon Tetrachloride 56-23-5 < 10 10 02/03/2021 15:44 S21020309.D Trichloroethene 79-01-6 15 10 02/03/2021 15:44 S21020309 .D 1, 1,2-Trichloroethane 79-00-5 < 10 10 02/03/2021 15:44 S21020309.D Tetrachloroethene 127-18-4 89 10 02/03/2021 15:44 S21020309.D I , I, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/2021 15:44 S21020309.D Chlorobenzene 108-90-7 < 10 10 02/03/2021 15:44 S21020309.D 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/03/2021 15:44 S21020309.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/03/2021 15:44 S21020309.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/03/2021 15:44 S21020309.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/03/2021 15:44 S21020309.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/03/2021 15:44 S21020309.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/2021 15:44 S21020309.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 15:44 S21020309.D 0005603 Page 22 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-06 SG-29 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/03/2021 16:07 S21020310.D I , 1-Dichloroethene 75-35-4 < 10 10 02/03/2021 16:07 S21020310.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/03/2021 16:07 S21020310.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/03/2021 16:07 S21020310.D I, 1-Dichloroethane 75-34-3 < 10 10 02/03/2021 16:07 S21020310.D cis- 1,2-Dichloroethene 156-59-2 < 10 10 02/03/2021 16:07 S21020310.D Chloroform 67-66-3 < 10 10 02/03/2021 16:07 S21020310.D 1,2-Dichloroethane 107-06-2 < 10 10 02/03/2021 16:07 S21020310.D I , I, I-Trichloroethane 71-55-6 < 10 10 02/03/2021 16:07 S21020310.D Carbon Tetrachloride 56-23-5 < 10 10 02/03/2021 16:07 S21020310.D Trichloroethene 79-01-6 241 10 02/03/2021 16:07 S21020310.D 1, 1,2-Trichloroethane 79-00-5 < 10 10 02/03/2021 16:07 S21020310.D Tetrachloroethene 127-18-4 3,420 10 02/03/2021 16:07 S21020310.D I , I, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/2021 16:07 S21020310.D Chlorobenzene 108-90-7 < 10 10 02/03/2021 16:07 S21020310.D 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/03/2021 16:07 S21020310.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/03/2021 I 6:07 S21020310.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/03/2021 16:07 S210203 I 0.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/03/2021 16:07 S21020310.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/03/2021 16:07 S21020310.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/2021 16:07 S21020310.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 16:07 S21020310.D 0005603 Page 23 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-07 SG-30 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/03/2021 16:31 S21020311.D I , 1-Dichloroethene 75-35-4 < 10 10 02/03/2021 16:31 S21020311.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/03/2021 16:31 S2102031 l.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/03/2021 16:31 S21020311.D I, 1-Dichloroethane 75-34-3 < 10 10 02/03/2021 16:3 I S21020311.D cis- 1,2-Dichloroethene 156-59-2 < 10 10 02/03/2021 16:31 S21020311.D Chloroform 67-66-3 < 10 10 02/03/2021 16:31 S21020311.D 1,2-Dichloroethane 107-06-2 < 10 10 02/03/2021 16:31 S2102031 l.D I , I, I-Trichloroethane 71-55-6 < 10 10 02/03/2021 16:31 S21020311.D Carbon Tetrachloride 56-23-5 < 10 10 02/03/2021 16:31 S21020311.D Trichloroethene 79-01-6 17 10 02/03/2021 16:31 S21020311.D 1, 1,2-Trichloroethane 79-00-5 < 10 10 02/03/2021 16:31 S21020311.D Tetrachloroethene 127-18-4 148 10 02/03/2021 16:31 S21020311.D I , I, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/2021 16:31 S21020311.D Chlorobenzene 108-90-7 < 10 10 02/03/2021 16:31 S21020311.D 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/03/2021 16:31 S21020311.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/03/2021 16:31 S21020311.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/03/2021 16:31 S21020311.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/03/2021 16:31 S21020311.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/03/2021 16:31 S2102031 l.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/2021 16:31 S21020311.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 16:3 I S21020311.D 0005603 Page 24 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-08 SG-31 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/03/2021 16:54 S21020312.D I , 1-Dichloroethene 75-35-4 < 10 10 02/03/2021 16:54 S21020312.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/03/2021 16:54 S21020312.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/03/2021 16:54 S21020312.D I, 1-Dichloroethane 75-34-3 < 10 10 02/03/2021 16:54 S21020312.D cis- 1,2-Dichloroethene 156-59-2 < 10 10 02/03/2021 16:54 S21020312.D Chloroform 67-66-3 < 10 10 02/03/2021 16:54 S21020312.D 1,2-Dichloroethane 107-06-2 < 10 10 02/03/2021 16:54 S21020312.D I , I, I-Trichloroethane 71-55-6 < 10 10 02/03/2021 16:54 S21020312.D Carbon Tetrachloride 56-23-5 < 10 10 02/03/2021 16:54 S21020312.D Trichloroethene 79-01-6 < 10 10 02/03/2021 16:54 S21020312.D I, 1,2-Trichloroethane 79-00-5 < 10 10 02/03/2021 16:54 S21020312.D Tetrachloroethene 127-18-4 55 10 02/03/2021 16:54 S21020312.D I, I, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/2021 16:54 S21020312.D Chlorobenzene 108-90-7 < 10 10 02/03/2021 16:54 S21020312.D I, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/03/2021 16:54 S21020312.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/03/2021 16:54 S21020312.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/03/2021 16:54 S21020312.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/03/2021 16:54 S21020312.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/03/2021 16:54 S21020312.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/2021 16:54 S21020312.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 16:54 S21020312.D 0005603 Page 25 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-09 SG-32 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/03/202117:17 S21020313.D I , 1-Dichloroethene 75-35-4 < 10 10 02/03/2021 17:17 S21020313.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/03/202117:17 S21020313.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/03/202117:17 S21020313.D l , 1-Dichloroethane 75-34-3 < 10 10 02/03/2021 17: 17 S21020313.D cis-1,2-Dichloroethene 156-59-2 17 10 02/03/202117:17 S21020313.D Chloroform 67-66-3 < 10 10 02/03/2021 17: I 7 S2I020313.D 1,2-Dichloroethane 107-06-2 < 10 10 02/03/2021 17:17 S21020313.D I, 1, 1-Trichloroethane 71-55-6 < 10 10 02/03/202117:17 S21020313.D Carbon Tetrachloride 56-23-5 < 10 10 02/03/20211 7:17 S21020313.D Trichloroethene 79-01-6 298 10 02/03/2021 17:17 S21020313.D I , 1,2-Trichloroethane 79-00-5 < 10 10 02/03/2021 17:17 S21020313.D Tetrachloroethene 127-18-4 2,900 10 02/03/2021 17: I 7 S21020313.D I, I, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/202117:17 S21020313.D Chlorobenzene 108-90-7 < 10 10 02/03/20211 7:17 S21020313.D I, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/03/2021 17:17 S21020313.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/03/202117:17 S21020313.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/03/2021 17:17 S21020313.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/03/2021 17: I 7 S21020313.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/03/2021 17:17 S21020313.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/202117:17 S21020313.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 17: I 7 S21020313.D 0005603 Page 26 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-10 SG-33 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/03/2021 17:41 S21020314.D 1,1-Dichloroethene 75-35-4 11 10 02/03/2021 17:41 S21020314.D 1,1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/03/2021 17:41 S21020314.D trans-1,2-Dichloroethene 156-60-5 38 10 02/03/2021 17:41 S21020314.D I, 1-Dichloroethane 75-34-3 < IO 10 02/03/2021 17:41 S21020314.D cis-1,2-Dichlorocthcnc 156-59-2 129 10 02/03/2021 17:41 S21020314.D Chloroform 67-66-3 < IO 10 02/03/2021 17:41 S21020314.D 1,2-Dichloroethane 107-06-2 < JO 10 02/03/2021 17:41 S21020314.D I, I, 1-Trichloroethane 71-55-6 < 10 10 02/03/2021 17:41 S21020314.D Carbon Tetrachloride 56-23-5 < 10 10 02/03/2021 17:41 S21020314.D Trichloroethene 79-01-6 1,710 10 02/03/2021 17:41 S21020314.D I , 1,2-Trichloroethane 79-00-5 < 10 10 02/03/2021 17:41 S21020314.D Tetrachloroethene 127-18-4 7,110 10 02/03/2021 17:41 S21020314.D I, I, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/2021 17:41 S21020314.D Chlorobenzene 108-90-7 < 10 10 02/03/2021 17:41 S21020314.D I, 1,2,2-Tetrachloroethane 79-34-5 < IO 10 02/03/2021 17:41 S21020314.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/03/2021 17:41 S21020314.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/03/2021 17:41 S21020314.D 1,4-Dichlorobenzene 106-46-7 < IO 10 02/03/2021 17:41 S21020314.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/03/2021 17:41 S21020314.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/2021 17:41 S21020314.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 17:41 S21020314.D 0005603 Page 27 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-11 SG-34 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/03/2021 18:05 S21020315.D I , 1-Dichloroethene 75-35-4 < 10 10 02/03/2021 18:05 S21020315.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/03/2021 18:05 S210203 I 5.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/03/2021 18:05 S21020315.D I, 1-Dichloroethane 75-34-3 < 10 10 02/03/2021 18:05 S21020315.D cis- 1,2-Dichloroethene 156-59-2 < 10 10 02/03/2021 18:05 S21020315.D Chloroform 67-66-3 < 10 10 02/03/2021 18:05 S21020315.D 1,2-Dichloroethane 107-06-2 < 10 10 02/03/2021 18:05 S2 I 0203 I 5.D I , I, I-Trichloroethane 71-55-6 < 10 10 02/03/2021 18:05 S21020315.D Carbon Tetrachloride 56-23-5 < 10 10 02/03/2021 18:05 S21020315.D Trichloroethene 79-01-6 < 10 10 02/03/2021 18:05 S21020315.D I, 1,2-Trichloroethane 79-00-5 < 10 10 02/03/2021 18:05 S21020315.D Tetrachloroethene 127-18-4 12 10 02/03/2021 18:05 S210203 I 5.D I, I, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/2021 18:05 S21020315.D Chlorobenzene 108-90-7 < 10 10 02/03/2021 18:05 S21020315.D I, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/03/2021 18:05 S21020315.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/03/2021 18:05 S21020315.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/03/2021 18:05 S21020315.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/03/2021 18:05 S210203 I 5.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/03/2021 18:05 S21020315.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/2021 18:05 S21020315.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 18:05 S21020315.D 0005603 Page 28 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-12 SG-35 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/03/2021 18:28 S21020316.D I , 1-Dichloroethene 75-35-4 < 10 10 02/03/2021 18:28 S21020316.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/03/2021 18:28 S21020316.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/03/2021 18:28 S21020316.D I, 1-Dichloroethane 75-34-3 < 10 10 02/03/2021 18:28 S21020316.D cis- 1,2-Dichloroethene 156-59-2 < 10 10 02/03/2021 18:28 S21020316.D Chloroform 67-66-3 < 10 10 02/03/2021 18:28 S21020316.D 1,2-Dichloroethane 107-06-2 < 10 10 02/03/2021 18:28 S21020316.D I , I, I-Trichloroethane 71-55-6 < 10 10 02/03/2021 18:28 S21020316.D Carbon Tetrachloride 56-23-5 < 10 10 02/03/2021 18:28 S21020316.D Trichloroethene 79-01-6 < 10 10 02/03/2021 18:28 S21020316.D I, 1,2-Trichloroethane 79-00-5 < 10 10 02/03/2021 18:28 S21020316.D Tetrachloroethene 127-18-4 224 10 02/03/2021 18:28 S21020316.D I, I, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/2021 18:28 S21020316.D Chlorobenzene 108-90-7 < 10 10 02/03/2021 18:28 S21020316.D I, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/03/2021 18:28 S2 I 0203 I 6.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/03/2021 18:28 S21020316.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/03/2021 I 8:28 S21020316.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/03/2021 18:28 S21020316.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/03/2021 18:28 S21020316.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/2021 18:28 S21020316.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 18:28 S21020316.D 0005603 Page 29 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-13 SG-36 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/03/2021 18:52 S2102031 7.D I , 1-Dichloroethene 75-35-4 < 10 10 02/03/2021 18:52 S21020317.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/03/2021 18:52 S21020317.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/03/2021 18:52 S2102031 7.D I, 1-Dichloroethane 75-34-3 < 10 10 02/03/2021 18:52 S21020317.D cis- 1,2-Dichloroethene 156-59-2 < 10 10 02/03/2021 18:52 S21020317.D Chloroform 67-66-3 < 10 10 02/03/2021 18:52 S21020317.D 1,2-Dichloroethane 107-06-2 < 10 10 02/03/2021 18:52 S2 I 0203 I 7.D I , I, I-Trichloroethane 71-55-6 < 10 10 02/03/2021 18:52 S21020317.D Carbon Tetrachloride 56-23-5 < 10 10 02/03/2021 18:52 S21020317.D Trichloroethene 79-01-6 27 10 02/03/2021 18:52 S21020317 .D 1, 1,2-Trichloroethane 79-00-5 < 10 10 02/03/2021 18:52 S21020317.D Tetrachloroethene 127-18-4 1,080 10 02/03/2021 18:52 S21020317.D I , I, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/2021 18:52 S21020317.D Chlorobenzene 108-90-7 < 10 10 02/03/2021 18:52 S21020317.D 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/03/2021 18:52 S2102031 7.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/03/2021 I 8:52 S21020317.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/03/2021 18:52 S210203 I 7.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/03/2021 18:52 S21020317.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/03/2021 18:52 S21020317.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/2021 18:52 S2102031 7.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 18:52 S21020317.D 0005603 Page 30 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-14 SG-37 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/03/2021 19:15 S21020318.D I , 1-Dichloroethene 75-35-4 < 10 10 02/03/2021 19:15 S21020318.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/03/2021 19:15 S210203 I 8.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/03/2021 19:15 S21020318.D l , 1-Dichloroethane 75-34-3 < 10 10 02/03/2021 19:15 S21020318.D cis-1,2-Dichloroethene 156-59-2 90 10 02/03/2021 19:15 S21020318.D Chloroform 67-66-3 < 10 10 02/03/2021 19: 15 S2 I 0203 I 8.D 1,2-Dichloroethane 107-06-2 < 10 10 02/03/2021 19:15 S21020318.D I, 1, 1-Trichloroethane 71-55-6 < 10 10 02/03/2021 19:15 S21020318.D Carbon Tetrachloride 56-23-5 < 10 10 02/03/2021 19:15 S21020318.D Trichloroethene 79-01-6 604 10 02/03/2021 19:15 S21020318.D I , 1,2-Trichloroethane 79-00-5 < 10 10 02/03/2021 19:15 S21020318.D Tetrachloroethene 127-18-4 6,680 10 02/03/2021 19: 15 S210203 I 8.D I, I, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/2021 19:15 S210203 I 8.D Chlorobenzene 108-90-7 < 10 10 02/03/2021 19:15 S21020318.D I, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/03/2021 19:15 S21020318.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/03/2021 19:15 S21020318.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/03/2021 19:15 S21020318.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/03/2021 19:15 S21020318.D 1,2-Dichlorobenzene 95-50-1 < JO 10 02/03/2021 19:15 S21020318.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/2021 19:15 S21020318.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 19: 15 S21020318.D 0005603 Page 31 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-15 SG-38 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 59 10 02/03/2021 19:39 S210203 I 9.D 1,1-Dichloroethene 75-35-4 45 10 02/03/2021 19:39 S21020319.D 1,1,2-Trichlorotriflnoroethane (Fr.113) 76-13-1 11 10 02/03/2021 19:39 S21020319.D trans-1 ,2-Dichloroethene 156-60-5 6,720 10 02/03/2021 19:39 S21020319.D 1,1-Dichloroethane 75-34-3 22 10 02/03/2021 19:39 S21020319.D cis-1,2-Dichloroethene 156-59-2 5,840 10 02/03/2021 19:39 S21020319.D Chloroform 67-66-3 18 10 02/03/2021 19:39 S21020319.D 1,2-Dichloroethane 107-06-2 < 10 10 02/03/2021 19:39 S21020319.D I, I, I -Trichloroethane 71-55-6 < 10 10 02/03/2021 19:39 S21020319.D Carbon Tetrachloride 56-23-5 < 10 10 02/03/2021 19:39 S210203 I 9.D Trichloroethene 79-01-6 10,100 10 02/03/2021 19:39 S21020319.D 1, 1,2-Trichloroethane 79-00-5 < 10 10 02/03/2021 19:39 S21020319.D Tetrachloroethene 127-18-4 8,780 10 02/03/2021 19:39 S21020319.D 1, 1, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/2021 19:39 S21020319.D Chlorobenzene 108-90-7 < 10 10 02/03/2021 19:39 S210203 I 9.D 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/03/2021 19:39 S21020319.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/03/2021 19:39 S210203 I 9.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/03/2021 19:39 S21020319.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/03/2021 19:39 S21020319.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/03/2021 19:39 S21020319.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/2021 19:39 S21020319.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 19:39 S21020319.D 0005603 Page 32 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-16 SG-39 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/03/2021 20:02 S21020320.D I , 1-Dichloroethene 75-35-4 < 10 10 02/03/2021 20:02 S21020320.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/03/2021 20:02 S21020320.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/03/2021 20:02 S21020320.D I, 1-Dichloroethane 75-34-3 < 10 10 02/03/2021 20:02 S21020320.D cis- 1,2-Dichloroethene 156-59-2 < 10 10 02/03/2021 20:02 S21020320.D Chloroform 67-66-3 < 10 10 02/03/2021 20:02 S21020320.D 1,2-Dichloroethane 107-06-2 < 10 10 02/03/2021 20:02 S2 I 020320.D I , I, I-Trichloroethane 71-55-6 < 10 10 02/03/2021 20:02 S21020320.D Carbon Tetrachloride 56-23-5 < 10 10 02/03/2021 20:02 S21020320.D Trichloroethene 79-01-6 < 10 10 02/03/2021 20:02 S21020320.D I, 1,2-Trichloroethane 79-00-5 < 10 10 02/03/2021 20:02 S21020320.D Tetrachloroethene 127-18-4 24 10 02/03/2021 20:02 S21020320.D I, I, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/2021 20:02 S21020320.D Chlorobenzene 108-90-7 < 10 10 02/03/2021 20:02 S21020320.D I, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/03/2021 20:02 S21020320.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/03/2021 20:02 S21020320.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/03/2021 20:02 S21020320.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/03/2021 20:02 S21020320.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/03/2021 20:02 S21020320.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/2021 20:02 S21020320.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 20:02 S21020320.D 0005603 Page 33 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-17 SG-40 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/03/2021 20:25 S21020321.D I , 1-Dichloroethene 75-35-4 < 10 10 02/03/2021 20:25 S21020321.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/03/2021 20:25 S21020321.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/03/2021 20:25 S21020321.D I, 1-Dichloroethane 75-34-3 < 10 10 02/03/2021 20:25 S21020321.D cis- 1,2-Dichloroethene 156-59-2 < 10 10 02/03/2021 20:25 S21020321.D Chloroform 67-66-3 < 10 10 02/03/2021 20:25 S21020321.D 1,2-Dichloroethane 107-06-2 < 10 10 02/03/2021 20:25 S21020321.D I , I, I-Trichloroethane 71-55-6 < 10 10 02/03/2021 20:25 S21020321.D Carbon Tetrachloride 56-23-5 < 10 10 02/03/2021 20:25 S21020321.D Trichloroethene 79-01-6 < 10 10 02/03/2021 20:25 S21020321.D I, 1,2-Trichloroethane 79-00-5 < 10 10 02/03/2021 20:25 S21020321.D Tetrachloroethene 127-18-4 221 10 02/03/2021 20:25 S21020321.D I, I, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/2021 20:25 S21020321.D Chlorobenzene 108-90-7 < 10 10 02/03/2021 20:25 S21020321.D I, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/03/2021 20:25 S21020321.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/03/2021 20:25 S21020321.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/03/2021 20:25 S21020321.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/03/2021 20:25 S21020321.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/03/2021 20:25 S21020321.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/2021 20:25 S21020321.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 20:25 S21020321.D 0005603 Page 34 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-18 SG-41 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/03/2021 20:49 S21020322.D I , 1-Dichloroethene 75-35-4 < 10 10 02/03/2021 20:49 S21020322.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/03/2021 20:49 S21020322.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/03/2021 20:49 S21020322.D I, 1-Dichloroethane 75-34-3 < 10 10 02/03/2021 20:49 S21020322.D cis- 1,2-Dichloroethene 156-59-2 < 10 10 02/03/2021 20:49 S21020322.D Chloroform 67-66-3 < 10 10 02/03/2021 20:49 S21020322.D 1,2-Dichloroethane 107-06-2 < 10 10 02/03/2021 20:49 S2 I 020322.D I , I, I-Trichloroethane 71-55-6 < 10 10 02/03/2021 20:49 S21020322.D Carbon Tetrachloride 56-23-5 < 10 10 02/03/2021 20:49 S21020322.D Trichloroethene 79-01-6 48 10 02/03/2021 20:49 S21020322.D 1, 1,2-Trichloroethane 79-00-5 < 10 10 02/03/2021 20:49 S21020322.D Tetrachloroethene 127-18-4 1,220 10 02/03/2021 20:49 S21020322.D I , I, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/2021 20:49 S21020322.D Chlorobenzene 108-90-7 < 10 10 02/03/2021 20:49 S21020322.D 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/03/2021 20:49 S21020322.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/03/2021 20:49 S21020322.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/03/2021 20:49 S21020322.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/03/2021 20:49 S21020322.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/03/2021 20:49 S21020322.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/2021 20:49 S21020322.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 20:49 S21020322.D 0005603 Page 35 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-19 SG-42 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/03/2021 21:12 S21020323.D I , 1-Dichloroethene 75-35-4 < 10 10 02/03/2021 21:12 S21020323.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/03/2021 21:12 S21020323.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/03/2021 21:12 S21020323.D I, 1-Dichloroethane 75-34-3 < 10 10 02/03/2021 21:12 S21020323.D cis- 1,2-Dichloroethene 156-59-2 < 10 10 02/03/2021 21:12 S21020323.D Chloroform 67-66-3 < 10 10 02/03/2021 21 :12 S21020323.D 1,2-Dichloroethane 107-06-2 < 10 10 02/03/2021 21 : 12 S2 I 020323.D I , I, I-Trichloroethane 71-55-6 < 10 10 02/03/2021 21 :12 S21020323.D Carbon Tetrachloride 56-23-5 < 10 10 02/03/2021 21:12 S21020323.D Trichloroethene 79-01-6 20 10 02/03/2021 21:12 S21020323.D 1, 1,2-Trichloroethane 79-00-5 < 10 10 02/03/2021 21:12 S21020323.D Tetrachloroethene 127-18-4 102 10 02/03/2021 21:12 S21020323.D I , I, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/2021 21:12 S21020323.D Chlorobenzene 108-90-7 < 10 10 02/03/2021 21:12 S21020323.D 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/03/2021 21:12 S21020323.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/03/2021 21 :12 S21020323.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/03/2021 21:12 S21020323.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/03/2021 21:12 S21020323.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/03/2021 21:12 S21020323.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/2021 21 : 12 S21020323.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 21:12 S21020323.D 0005603 Page 36 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-20 SG-43 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/03/2021 21:35 S21020324.D I , 1-Dichloroethene 75-35-4 < 10 10 02/03/2021 21 :35 S21020324.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/03/2021 21:35 S21020324.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/03/2021 21:35 S21020324.D I, 1-Dichloroethane 75-34-3 < 10 10 02/03/2021 21:35 S21020324.D cis- 1,2-Dichloroethene 156-59-2 < 10 10 02/03/2021 21:35 S21020324.D Chloroform 67-66-3 < 10 10 02/03/2021 21 :35 S21020324.D 1,2-Dichloroethane 107-06-2 < 10 10 02/03/2021 21 :35 S2 I 020324.D I , I, I-Trichloroethane 71-55-6 < 10 10 02/03/2021 21 :35 S21020324.D Carbon Tetrachloride 56-23-5 < 10 10 02/03/2021 21 :35 S21020324.D Trichloroethene 79-01-6 33 10 02/03/2021 21 :35 S21020324.D 1, 1,2-Trichloroethane 79-00-5 < 10 10 02/03/2021 21:35 S21020324.D Tetrachloroethene 127-18-4 1,080 10 02/03/2021 21:35 S21020324.D I , I, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/2021 21 :35 S21020324.D Chlorobenzene 108-90-7 < 10 10 02/03/2021 21:35 S21020324.D 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/03/2021 21 :35 S21020324.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/03/2021 21 :35 S21020324.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/03/2021 21:35 S21020324.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/03/2021 21 :35 S21020324.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/03/2021 21 :35 S21020324.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/2021 21 :35 S21020324.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 21:35 S21020324.D 0005603 Page 37 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-21 SG-44 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/03/2021 22:00 S21020325.D I , 1-Dichloroethene 75-35-4 < 10 10 02/03/2021 22:00 S21020325.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/03/2021 22:00 S21020325.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/03/2021 22:00 S21020325.D I, 1-Dichloroethane 75-34-3 < 10 10 02/03/2021 22:00 S21020325.D cis- 1,2-Dichloroethene 156-59-2 < 10 10 02/03/2021 22:00 S21020325.D Chloroform 67-66-3 < 10 10 02/03/2021 22:00 S21020325.D 1,2-Dichloroethane 107-06-2 < 10 10 02/03/2021 22:00 S2 I 020325.D I , I, I-Trichloroethane 71-55-6 < 10 10 02/03/2021 22:00 S21020325.D Carbon Tetrachloride 56-23-5 < 10 10 02/03/2021 22:00 S21020325.D Trichloroethene 79-01-6 66 10 02/03/2021 22:00 S21020325.D 1, 1,2-Trichloroethane 79-00-5 < 10 10 02/03/2021 22:00 S21020325.D Tetrachloroethene 127-18-4 757 10 02/03/2021 22:00 S21020325.D I , I, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/2021 22:00 S21020325.D Chlorobenzene 108-90-7 < 10 10 02/03/2021 22:00 S21020325.D 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/03/2021 22:00 S21020325.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/03/2021 22:00 S21020325.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/03/2021 22:00 S21020325.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/03/2021 22:00 S21020325.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/03/2021 22:00 S21020325.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/2021 22:00 S21020325.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 22:00 S21020325.D 0005603 Page 38 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-22 SG-45 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/03/2021 22:23 S21020326.D I , 1-Dichloroethene 75-35-4 < 10 10 02/03/2021 22:23 S21020326.D 1,1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 12 10 02/03/2021 22:23 S21020326.D trans-1,2-Dichloroethene 156-60-5 136 10 02/03/2021 22:23 S21020326.D I, 1-Dichloroethane 75-34-3 < 10 10 02/03/2021 22:23 S21020326.D cis-1,2-Dichlorocthcnc 156-59-2 85 10 02/03/2021 22:23 S21020326.D Chloroform 67-66-3 17 10 02/03/2021 22:23 S21020326.D 1,2-Dichloroethane 107-06-2 < IO 10 02/03/2021 22:23 S21020326.D 1, 1, 1-Trichloroethane 71-55-6 < 10 10 02/03/2021 22:23 S21020326.D Carbon Tetrachloride 56-23-5 < 10 10 02/03/2021 22:23 S21020326.D Trichlorocthcnc 79-01-6 2,440 10 02/03/2021 22:23 S21020326.D 1, 1,2-Trichloroethane 79-00-5 < 10 10 02/03/2021 22:23 S21020326.D Tetrachloroethene 127-18-4 8,590 10 02/03/2021 22:23 S21020326.D 1, 1, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/2021 22:23 S21020326.D Chlorobenzene 108-90-7 < 10 10 02/03/2021 22:23 S21020326.D 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/03/2021 22:23 S21020326.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/03/2021 22:23 S21020326.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/03/2021 22:23 S21020326.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/03/2021 22:23 S21020326.D 1,2-Dichlorobenzene 95-50-1 < IO IO 02/03/2021 22:23 S21020326.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/2021 22:23 S21020326.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 22:23 S21020326.D 0005603 Page 39 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-23 SG-46 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/03/2021 22:46 S21020327.D I , 1-Dichloroethene 75-35-4 < 10 10 02/03/2021 22:46 S21020327.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/03/2021 22:46 S21020327.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/03/2021 22:46 S21020327.D I, 1-Dichloroethane 75-34-3 < 10 10 02/03/2021 22:46 S21020327.D cis- 1,2-Dichloroethene 156-59-2 < 10 10 02/03/2021 22:46 S21020327.D Chloroform 67-66-3 < 10 10 02/03/2021 22:46 S21020327.D 1,2-Dichloroethane 107-06-2 < 10 10 02/03/2021 22:46 S2 I 020327.D I , I, I-Trichloroethane 71-55-6 < 10 10 02/03/2021 22:46 S21020327.D Carbon Tetrachloride 56-23-5 < 10 10 02/03/2021 22:46 S21020327.D Trichloroethene 79-01-6 < 10 10 02/03/2021 22:46 S21020327.D I, 1,2-Trichloroethane 79-00-5 < 10 10 02/03/2021 22:46 S21020327.D Tetrachloroethene 127-18-4 121 10 02/03/2021 22:46 S21020327.D I, I, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/2021 22:46 S21020327.D Chlorobenzene 108-90-7 < 10 10 02/03/2021 22:46 S21020327.D I, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/03/2021 22:46 S21020327.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/03/2021 22:46 S21020327.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/03/2021 22:46 S21020327.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/03/2021 22:46 S21020327.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/03/2021 22:46 S21020327.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/2021 22:46 S21020327.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 22:46 S21020327.D 0005603 Page 40 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-24 SG-47 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/03/2021 23:10 S21020328.D I , 1-Dichloroethene 75-35-4 < 10 10 02/03/2021 23 :10 S21020328.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/03/2021 23 : 10 S21020328.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/03/2021 23:10 S21020328.D I, 1-Dichloroethane 75-34-3 < 10 10 02/03/2021 23: 10 S21020328.D cis- 1,2-Dichloroethene 156-59-2 < 10 10 02/03/2021 23 :10 S21020328.D Chloroform 67-66-3 < 10 10 02/03/2021 23 :10 S21020328.D 1,2-Dichloroethane 107-06-2 < 10 10 02/03/2021 23: I 0 S2 I 020328.D I , I, I-Trichloroethane 71-55-6 < 10 10 02/03/2021 23 :10 S21020328.D Carbon Tetrachloride 56-23-5 < 10 10 02/03/2021 23:10 S21020328.D Trichloroethene 79-01-6 < 10 10 02/03/2021 23 :10 S21020328.D I, 1,2-Trichloroethane 79-00-5 < 10 10 02/03/2021 23 :10 S21020328.D Tetrachloroethene 127-18-4 < 10 10 02/03/2021 23 :10 S21020328.D 1, I, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/2021 23 :10 S21020328.D Chlorobenzene 108-90-7 < 10 10 02/03/2021 23 :10 S21020328.D 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/03/2021 23 :10 S21020328.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/03/2021 23: 10 S21020328.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/03/2021 23 :10 S21020328.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/03/2021 23 :10 S21020328.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/03/2021 23: I 0 S21020328.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/2021 23 :10 S21020328.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 23 : 10 S21020328.D 0005603 Page 41 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-25 SG-48 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 10 10 02/03/2021 23:33 S21020329.D 1,1-Dichloroethene 75-35-4 59 10 02/03/2021 23:33 S21020329.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < IO 10 02/03/2021 23 :33 S21020329.D trans-1,2-Dichloroethene 156-60-5 245 10 02/03/2021 23 :33 S21020329 .D 1, 1-Dichloroethane 75-34-3 < 10 10 02/03/2021 23 :33 S21020329.D cis-1,2-Dichloroethene 156-59-2 2,820 10 02/03/2021 23 :33 S21020329.D Chloroform 67-66-3 < 10 10 02/03/2021 23 :33 S21020329.D 1,2-Dichloroethane 107-06-2 < 10 10 02/03/2021 23 :33 S21020329.D 1, 1, 1-Trichloroethane 71-55-6 < 10 10 02/03/2021 23 :33 S21020329 .D Carbon Tetrachloride 56-23-5 < 10 10 02/03/2021 23 :33 S21020329.D Trichloroethene 79-01-6 4,860 10 02/03/2021 23:33 S21020329.D I, 1,2-Trichloroethane 79-00-5 < IO 10 02/03/2021 23:33 S21020329.D Tetrachloroethene 127-18-4 5,210 10 02/03/2021 23 :33 S21020329.D 1, 1, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/2021 23 :33 S21020329 .D Chlorobenzene 108-90-7 < IO 10 02/03/2021 23:33 S21020329.D 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/03/2021 23:33 S21020329.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/03/2021 23 :33 S21020329.D 1,3-Dichlorobenzene 541-73-1 < IO 10 02/03/2021 23 :33 S21020329.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/03/2021 23 :33 S21020329 .D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/03/2021 23:33 S21020329.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/2021 23 :33 S21020329.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 23 :33 S21020329.D 0005603 Page 42 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-26 SG-49 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/03/2021 23:57 S21020330.D I , 1-Dichloroethene 75-35-4 < 10 10 02/03/2021 23 :57 S21020330.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/03/2021 23 :57 S21020330.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/03/2021 23:57 S21020330.D I, 1-Dichloroethane 75-34-3 < 10 10 02/03/2021 23:57 S21020330.D cis- 1,2-Dichloroethene 156-59-2 < 10 10 02/03/2021 23 :57 S21020330.D Chloroform 67-66-3 < 10 10 02/03/2021 23 :57 S21020330.D 1,2-Dichloroethane 107-06-2 < 10 10 02/03/2021 23:57 S2 I 020330.D I , I, I-Trichloroethane 71-55-6 < 10 10 02/03/2021 23 :57 S21020330.D Carbon Tetrachloride 56-23-5 < 10 10 02/03/2021 23:57 S21020330.D Trichloroethene 79-01-6 12 10 02/03/2021 23 :57 S21020330.D 1, 1,2-Trichloroethane 79-00-5 < 10 10 02/03/2021 23 :57 S21020330.D Tetrachloroethene 127-18-4 57 10 02/03/2021 23 :57 S21020330.D I , I, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/03/2021 23 :57 S21020330.D Chlorobenzene 108-90-7 < 10 10 02/03/2021 23 :57 S21020330.D 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/03/2021 23:57 S21020330.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/03/2021 23:57 S21020330.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/03/2021 23:57 S21020330.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/03/2021 23 :57 S21020330.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/03/2021 23 :57 S21020330.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/03/2021 23 :57 S21020330.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/03/2021 23:57 S21020330.D 0005603 Page 43 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-27 SG-49Dup Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/04/2021 00:20 S21020331.D I , 1-Dichloroethene 75-35-4 < 10 10 02/04/2021 00:20 S21020331.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/04/2021 00:20 S21020331.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/04/2021 00:20 S21020331.D I, 1-Dichloroethane 75-34-3 < 10 10 02/04/2021 00:20 S21020331.D cis- 1,2-Dichloroethene 156-59-2 < 10 10 02/04/2021 00:20 S21020331.D Chloroform 67-66-3 < 10 10 02/04/2021 00:20 S21020331.D 1,2-Dichloroethane 107-06-2 < 10 10 02/04/2021 00:20 S21020331.D I , I, I-Trichloroethane 71-55-6 < 10 10 02/04/2021 00:20 S21020331.D Carbon Tetrachloride 56-23-5 < 10 10 02/04/2021 00:20 S21020331.D Trichloroethene 79-01-6 < 10 10 02/04/2021 00:20 S21020331.D I, 1,2-Trichloroethane 79-00-5 < 10 10 02/04/2021 00:20 S21020331.D Tetrachloroethene 127-18-4 47 10 02/04/2021 00:20 S21020331.D I, I, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/04/2021 00:20 S21020331.D Chlorobenzene 108-90-7 < 10 10 02/04/2021 00:20 S21020331.D I, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/04/2021 00:20 S21020331.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/04/2021 00:20 S21020331.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/04/2021 00:20 S21020331.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/04/2021 00:20 S21020331.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/04/2021 00:20 S21020331.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/04/2021 00:20 S21020331.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/04/2021 00:20 S21020331.D 0005603 Page 44 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-28 SG-50 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/04/2021 00:43 S21020332.D I , 1-Dichloroethene 75-35-4 < 10 10 02/04/2021 00:43 S21020332.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/04/2021 00:43 S21020332.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/04/2021 00:43 S21020332.D I, 1-Dichloroethane 75-34-3 < 10 10 02/04/2021 00:43 S21020332.D cis- 1,2-Dichloroethene 156-59-2 < 10 10 02/04/2021 00:43 S21020332.D Chloroform 67-66-3 < 10 10 02/04/2021 00:43 S21020332.D 1,2-Dichloroethane 107-06-2 < 10 10 02/04/2021 00:43 S2 I 020332.D I , I, I-Trichloroethane 71-55-6 < 10 10 02/04/2021 00:43 S21020332.D Carbon Tetrachloride 56-23-5 < 10 10 02/04/2021 00:43 S21020332.D Trichloroethene 79-01-6 11 10 02/04/2021 00:43 S21020332.D 1, 1,2-Trichloroethane 79-00-5 < 10 10 02/04/2021 00:43 S21020332.D Tetrachloroethene 127-18-4 118 10 02/04/2021 00:43 S21020332.D I , I, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/04/2021 00:43 S21020332.D Chlorobenzene 108-90-7 < 10 10 02/04/2021 00:43 S21020332.D 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/04/2021 00:43 S21020332.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/04/2021 00:43 S21020332.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/04/2021 00:43 S21020332.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/04/2021 00:43 S21020332.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/04/2021 00:43 S21020332.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/04/2021 00:43 S21020332.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/04/2021 00:43 S21020332.D 0005603 Page 45 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-29 SG-51 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/04/2021 0 I :07 S21020333.D I , 1-Dichloroethene 75-35-4 < 10 10 02/04/2021 0 I :07 S21020333.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/04/2021 01:07 S21020333.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/04/2021 0 I :07 S21020333.D I, 1-Dichloroethane 75-34-3 < 10 10 02/04/2021 01:07 S21020333.D cis- 1,2-Dichloroethene 156-59-2 < 10 10 02/04/2021 0 I :07 S21020333.D Chloroform 67-66-3 < 10 10 02/04/2021 0 I :07 S21020333.D 1,2-Dichloroethane 107-06-2 < 10 10 02/04/2021 0 I :07 S2 I 020333.D I , I, I-Trichloroethane 71-55-6 < 10 10 02/04/2021 0 I :07 S21020333.D Carbon Tetrachloride 56-23-5 < 10 10 02/04/2021 0 I :07 S21020333.D Trichloroethene 79-01-6 < 10 10 02/04/2021 0 I :07 S21020333.D I, 1,2-Trichloroethane 79-00-5 < 10 10 02/04/2021 0 I :07 S21020333.D Tetrachloroethene 127-18-4 24 10 02/04/2021 0 I :07 S21020333.D I, I, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/04/2021 0 I :07 S21020333.D Chlorobenzene 108-90-7 < 10 10 02/04/2021 0 I :07 S21020333.D I, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/04/2021 01:07 S21020333.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/04/2021 0 I :07 S21020333.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/04/2021 0 I :07 S21020333.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/04/2021 0 I :07 S21020333.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/04/2021 0 I :07 S21020333.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/04/2021 01:07 S21020333.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/04/2021 0 I :07 S21020333.D 0005603 Page 46 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-30 SG-52 Method: EPA8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 < 10 10 02/04/2021 0 I :30 S21020334.D I , 1-Dichloroethene 75-35-4 < 10 10 02/04/2021 0 I :30 S21020334.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 02/04/2021 01:30 S21020334.D trans-1,2-Dichloroethene 156-60-5 < 10 10 02/04/2021 0 I :30 S21020334.D I, 1-Dichloroethane 75-34-3 < 10 10 02/04/2021 01:30 S21020334.D cis- 1,2-Dichloroethene 156-59-2 < 10 10 02/04/2021 0 I :30 S21020334.D Chloroform 67-66-3 22 10 02/04/2021 0 I :30 S21020334.D 1,2-Dichloroethane 107-06-2 < 10 10 02/04/2021 0 I :30 S21020334.D I, 1, 1-Trichloroethane 71-55-6 < 10 10 02/04/2021 01 :30 S21020334.D Carbon Tetrachloride 56-23-5 < 10 10 02/04/2021 0 I :30 S21020334.D Trichloroethene 79-01-6 18 10 02/04/2021 01:30 S21020334.D I , 1,2-Trichloroethane 79-00-5 < 10 10 02/04/2021 01:30 S21020334.D Tetrachloroethene 127-18-4 584 10 02/04/2021 01:30 S21020334.D I, I, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/04/2021 01:30 S21020334.D Chlorobenzene 108-90-7 < 10 10 02/04/2021 0 I :30 S21020334.D I, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/04/2021 01:30 S21020334.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/04/2021 0 I :30 S21020334.D 1,3-Dichlorobenzene 541-73-1 < 10 10 02/04/2021 0 I :30 S21020334.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/04/2021 01:30 S21020334.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/04/2021 0 I :30 S21020334.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/04/2021 01:30 S21020334.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/04/2021 0 I :30 S21020334.D 0005603 Page 47 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Lab Sample ID: 0005603-31 SG-53 Method: EPA 8260C Soil Gas Result LOQ Analyte CAS# (ng) Q (ng) Analyzed File ID Vinyl Chloride 75-01-4 32 10 02/04/2021 01 :54 S21020335.D 1,1-Dichloroethene 75-35-4 68 10 02/04/2021 01 :54 S21020335.D I, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < IO 10 02/04/2021 01:54 S21020335.D trans-1,2-Dichloroethene 156-60-5 353 10 02/04/2021 01 :54 S21020335.D 1, 1-Dichloroethane 75-34-3 < 10 10 02/04/2021 01 :54 S21020335.D cis-1,2-Dichloroethene 156-59-2 4,510 10 02/04/2021 01 :54 S21020335.D Chloroform 67-66-3 < 10 10 02/04/2021 01 :54 S21020335.D 1,2-Dichloroethane 107-06-2 < 10 10 02/04/2021 0 I :54 S21020335.D 1, 1, 1-Trichloroethane 71-55-6 < 10 10 02/04/2021 0 I :54 S21020335.D Carbon Tetrachloride 56-23-5 < 10 10 02/04/2021 0 I :54 S21020335.D Trichloroethene 79-01-6 4,240 10 02/04/2021 0 I :54 S21020335.D I, 1,2-Trichloroethane 79-00-5 < IO 10 02/04/2021 01:54 S21020335.D Tetrachloroethene 127-18-4 2,860 10 02/04/2021 0 I :54 S21020335.D 1, 1, 1,2-Tetrachloroethane 630-20-6 < 10 10 02/04/2021 0 I :54 S21020335.D Chlorobenzene 108-90-7 < IO 10 02/04/2021 0 I :54 S21020335.D 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 02/04/2021 01 :54 S21020335.D 1,2,3-Trichloropropane 96-18-4 < 10 10 02/04/2021 0 I :54 S21020335.D 1,3-Dichlorobenzene 541-73-1 < IO 10 02/04/2021 01:54 S21020335.D 1,4-Dichlorobenzene 106-46-7 < 10 10 02/04/2021 0 I :54 S21020335.D 1,2-Dichlorobenzene 95-50-1 < 10 10 02/04/2021 01:54 S21020335.D 1,2,4-Trichlorobenzene 120-82-1 < 10 10 02/04/2021 01 :54 S21020335.D 1,2,3-Trichlorobenzene 87-61-6 < 10 10 02/04/2021 0 I :54 S21020335.D 0005603 Page 48 of 58

2203A Commerce Road, Suite 1 Forest Hill, MD 21050 USA CERTIFICATE OF ANALYSIS 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 QC Information/Summary 0005603 Page 49 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Soil-Gas Sample Analysis by EPA Method 8260C - Quality Control Summary 21B0006-BLKJ (Lab Blank) File ID: S21020303.D Analyzed: 2/3/21 13 :23 Sampler: Beacon Passive Sampler Result LOQ Analyte CAS# (ng) (ng) Q Vinyl Chloride 75-01-4 <IO IO 1, 1-Dichloroethene 75-35-4 <10 10 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 <10 10 trans-1 ,2-Dichloroethene 156-60-5 <10 10 1, 1-Dichloroethane 75-34-3 <IO 10 cis-1,2-Dichloroethene 156-59-2 <IO IO Chloroform 67-66-3 <10 10 1,2-Dichloroethane 107-06-2 <IO IO 1, 1, 1-Trichloroethane 71-55-6 <IO 10 Carbon Tetrachloride 56-23-5 <10 IO Trichloroethene 79-01-6 <IO IO 1, 1,2-Trichloroethane 79-00-5 <IO IO Tetrachloroethene 127-18-4 <10 IO 1, 1, 1,2-Tetrachloroethane 630-20-6 <10 10 Chlorobenzene 108-90-7 <10 IO 1, 1,2,2-Tetrachloroethane 79-34-5 <IO IO 1,2,3-Trichloropropane 96-18-4 <IO IO 1,3-Dichlorobenzene 541-73-1 <IO IO 1,4-Dichlorobenzene 106-46-7 <10 IO 1,2-Dichlorobenzene 95-50-1 <IO IO 1,2,4-Trichlorobenzene 120-82-1 <10 10 1,2,3-Trichlorobenzene 87-61-6 <10 10 0005603 Page 50 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Sample Duplicate RPD Summary Soil-Gas Sample Analysis by EPA Method 8260C Duplicate Sample: SG-27 Dup (0005603-04) Sample: SG-27 (0005603-03) Average RPD: 6.0% Duplicate Result LOQ Sample Result LOQ RPD Analyte CAS# (ng) (ng) (ng) (ng) (%) Vinyl Chloride 75-01-4 11.0 10 19.0 10 53.3 1, 1-Dichloroethene 75-35-4 < 10 10 < 10 10 0.0 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 < IO 10 0.0 trans-1,2-Dichloroethene 156-60-5 < 10 10 < 10 10 0.0 1, 1-Dichloroethane 75-34-3 < 10 10 < 10 10 0.0 cis-1,2-Dichloroethene 156-59-2 35 .0 10 38.0 10 8.2 Chloroform 67-66-3 < 10 10 < JO 10 0.0 1,2-Dichloroethane 107-06-2 < 10 10 < 10 10 0.0 1, 1, 1-Trichloroethane 71-55-6 < 10 10 < 10 10 0.0 Carbon Tetrachloride 56-23-5 < 10 10 < JO 10 0.0 Trichloroethene 79-01-6 67.0 10 56.0 10 17.9 1, 1,2-Trichloroethane 79-00-5 < 10 10 < 10 10 0.0 Tetrachloroethene 127-18-4 224 10 388 10 53 .6 1, 1, 1,2-Tetrachloroethane 630-20-6 < 10 10 < 10 10 0.0 Chlorobenzene 108-90-7 < 10 10 < JO 10 0.0 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 < 10 10 0.0 1,2,3-Trichloropropane 96-18-4 < 10 10 < 10 10 0.0 1,3-Dichlorobenzene 541-73-1 < 10 10 < JO 10 0.0 1,4-Dichlorobenzene 106-46-7 < 10 10 < 10 10 0.0 1,2-Dichlorobenzene 95-50-1 < 10 10 < 10 10 0.0 1,2,4-Trichlorobenzene 120-82-1 < 10 10 < 10 10 0.0 1,2,3-Trichlorobenzene 87-61-6 < 10 10 < 10 10 0.0 0005603 Page 51 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Sample Duplicate RPD Summary Soil-Gas Sample Analysis by EPA Method 8260C Duplicate Sample: SG-49 Dup (0005603-27) Sample: SG-49 (0005603-26) Average RPD: 1.7% Duplicate Result LOQ Sample Result LOQ RPD Analyte CAS# (ng) (ng) (ng) (ng) (%) Vinyl Chloride 75-01-4 < 10 10 < IO 10 0.0 I, 1-Dichloroethene 75-35-4 < 10 10 < 10 10 0.0 1, 1,2-Trichlorotrifluoroethane (Fr.113) 76-13-1 < 10 10 < IO 10 0.0 trans-1,2-Dichloroethene 156-60-5 < 10 10 < 10 10 0.0 1, 1-Dichloroethane 75-34-3 < 10 10 < 10 10 0.0 cis-1,2-Dichloroethene 156-59-2 < 10 10 < IO 10 0.0 Chloroform 67-66-3 < 10 10 < 10 10 0.0 1,2-Dichloroethane 107-06-2 < 10 10 < 10 10 0.0 1, 1, 1-Trichloroethane 71-55-6 < 10 10 < IO 10 0.0 Carbon Tetrachloride 56-23-5 < 10 10 < 10 10 0.0 Trichloroethene 79-01-6 < 10 10 12.0 10 18.2 1, 1,2-Trichloroethane 79-00-5 < 10 10 < 10 10 0.0 Tetrachloroethene 127-18-4 47.0 10 57.0 10 19.2 1, 1, 1,2-Tetrachloroethane 630-20-6 < 10 10 < IO 10 0.0 Chlorobenzene 108-90-7 < 10 10 < 10 10 0.0 1, 1,2,2-Tetrachloroethane 79-34-5 < 10 10 < 10 10 0.0 1,2,3-Trichloropropane 96-18-4 < 10 10 < IO 10 0.0 1,3-Dichlorobenzene 541-73-1 < 10 10 < 10 10 0.0 1,4-Dichlorobenzene 106-46-7 < 10 10 < IO 10 0.0 1,2-Dichlorobenzene 95-50-1 < 10 10 < 10 10 0.0 1,2,4-Trichlorobenzene 120-82-1 < 10 10 < 10 10 0.0 1,2,3-Trichlorobenzene 87-61-6 < 10 10 < IO 10 0.0 0005603 Page 52 of 58

2203A Commerce Road, Suite 1 Forest Hill, MD 21050 USA CERTIFICATE OF ANALYSIS 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Additional QC Information 0005603 Page 53 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Laboratory Certification List Project Certification ID Certification No. Description Expires Required Alaska CS-LAP 19-002 Alaska Department of Environmental Conservation 01/31/2023 DoD-ELAP L20-532 United States Department of Defense Environmental 12/31/2022 Laboratory Accreditation ISO/lEC 17025:2017 L20-532 General Requirements for the competence of Testing and 12/31/2022 Calibration Laboratories NY-NELAC 12097 New York Department of Health 04/01 /2021 Utah-NELAC MD01091 Utah Department of Health 12/31/2021 0005603 Page 54 of 58

2203A Commerce Road, Suite 1 BEACON CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA ENVIRONMENTAL 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Qualifiers/Notes and Definitions General Definitions: DF Dilution Factor DL Detection Limit LOD Limit of Detection LOQ Limit ofQuantitation NA Not Applicable Q Qualifier RPD Relative Percent Difference RT Retention Times in Minutes RRT Evaluation of Relative Retention Times in RRT Units (qualified if outside +/-0.06 control limits) 3cr Uncertainty

    ~          Compound not on scope of accreditation
   +            values are outside method/contract required QC limits 0           Compound not on scope of accreditation and analyzed with a one-point calibration 0005603                                                                                                                         Page 55 of 58

2203A Commerce Road, Suite 1 Forest Hill, MD 21050 USA CERTIFICATE OF ANALYSIS 1.410.838.8780 AECOM Site Name: Westinghouse-CFFF Beacon Proposal: 201103R03 101 Research Drive Site Location: Hopkins, SC Lab Work Order: 0005603 Columbia, SC 29203 Project Manager: Jeremy Grant Reported: 02/ 10/2021 Sample Management Records 0005603 Page 56 of 58

2203A Commerce Rd, Suite 1 Forest Hill, MO 21050, USA 1-4 10-838-8780 800-878-5510 Toll Free Wii*WIMl!fI CHAIN-OF-CUSTODY Project Information Client Information SIie Name: Company Name foe(_ ('I.A Profecl Manager: J~ - C(c.G,""- Office Locauon COv~l"\ ( -::> (.P, Ch0111 PO: Site Location Subm1t1ed by: J:1>. ~c:. Tum around llme (check one)*

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