Some Useful Information Concerning the results:

The Conversion factors for the primordial nuclides are given by:

1 Bq 238U/kg = 81 ppb U (81 x 10-9 gU/g)

The 238U decay chain gammas used are:

226Ra: 186.1 keV

214Pb: 295.21 and 351.92 keV

214Bi: 609.31, 1120.29, 1764.49 and 2204.21 keV

The relationships are valid for any daughters in the 238U, 235U or 232Th chain only if the chain is in equilibrium.

1 Bq 232Th/kg = 246 ppb Th (246 x 10-9 gTh/g)

The 232Th decay chain gammas used are:

212Pb: 238.63 and 300.09 keV

208Tl: 583.19 and 2614.53 keV,

228Ac: 911.21 keV

1 Bq 40K/kg = 32300 ppb K (32300 x 10-6 gK/g)

The 40K decay chain gamma used is:

40K: 1460.83 keV

1 Bq 235U/kg = 1.76 ppm U (1.76 x 10-6 gU/g)

The 235U decay chain gammas used are:

235U: 143.76, 163.33 and 205.31 keV

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Run Numbers

Counting Dates
(if applicable)

Background 1

20.458

171213
171214
17121401

Dec 13, 2017

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Completely Empty Detector

171217
180104
18010401

Jan 5, 2018

(mBq)

1.56

0.25

2.35

3.81

0.89

0.54

1.86

0.28

4.55

1.49

<0.12

0.016

0.041

Results:

210Pb:

7Be:

54Mn

228Ac:

210Po:

(mBq)

894.01

51.42

1.13

1.62

<0.11

2.73

0.50

5666.40

8743.00

Background 2

The two polyethylene bricks are used as sample holders

130.000

180108
180118
180123
180208

Jan 5, 2018

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Detector Chamber contains two 2x4x8 polyethylene bricks

180305
180306
180328
180409

May 25, 2018

(mBq)

4.38

0.19

7.98

1.91

0.94

0.22

1.14

0.10

5.52

0.69

0.100

0.051

0.092

0.024

This is the standard background to be subtracted from samples beginning on May 25, 2018

180420
180502
180504
180514

180524

Results:

210Pb:

7Be:

54Mn

228Ac:

210Po:

(mBq)

876.52

45.60

0.62

0.78

0.028

0.033

3.33

0.23

8471.52

3457.00

Background 3

73.875

200324
200430

Mar 24, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Completely Empty Detector

Jun 10, 2020

(mBq)

4.09

0.21

5.89

2.34

0.25

0.12

1.51

0.14

5.28

0.85

0.061

0.065

0.126

0.033

Results:

210Pb:

7Be:

54Mn

228Ac:

210Po:

(mBq)

836.47

44.29

<1.11

<0.032

3.60

0.31

3138.40

4375.00

Background 4

N/A

236.548

20070301

Jul 3, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Completely Empty Detector

Mar 5, 2021

(mBq)

5.73

0.45

5.52

1.34

0.23

0.07

5.48

0.35

3.35

0.42

0.046

0.033

0.101

0.018

Results:

210Pb:

7Be:

54Mn

228Ac:

210Po:

(mBq)

800.48

41.24

0.71

0.45

<0.041

5.97

0.66

<3621.00

Background 5

This is the first background run with the Fast Discriminator set to Low Energy

N/A

34.528

21032203

Mar 22, 2021

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Completely Empty Detector

Apr 26, 2021

(mBq)

2.55

0.17

3.73

2.01

0.007

0.080

2.87

0.21

7.97

1.01

<0.078

0.188

0.040

Results:

210Pb:

7Be:

54Mn

228Ac:

210Po:

(mBq)

300.22

16.49

<1.01

0.021

0.044

3.37

0.30

Background 6

N/A

36.021

210517
210524

May 17, 2021

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Background with large acrylic stand

Jun 25, 2021

(mBq)

2.57

0.17

9.77

2.11

0.17

0.08

2.79

0.20

5.93

0.86

<0.14

0.199

0.037

Acrylic Stand 1

Results:

210Pb:

7Be:

54Mn

228Ac:

210Po:

(mBq)

286.76

15.79

<1.23

0.097

0.051

3.20

0.29

<6357.00

Background 7

N/A

141.978

210623
210803
210901
211008

Jun 23, 2022

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Background with small acrylic stand

Nov 13, 2022

(mBq)

1.92

0.09

3.74

1.02

0.15

0.04

2.96

0.12

7.79

0.61

0.059

0.021

0.157

0.019

Acrylic Stand 2

Results:

210Pb:

7Be:

54Mn

228Ac:

210Po:

(mBq)

296.98

15.42

0.52

0.38

0.025

0.035

3.42

0.18

4900.70

2279.00

Background 8

N/A

130.895

211113
211217
220103
220218

Nov 13, 2021

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Background with small acrylic stand

Mar 25, 2022

(mBq)

2.41

0.10

3.10

1.08

0.12

0.04

3.01

0.13

7.77

0.63

0.061

0.039

0.106

0.019

Acrylic Stand 2

Results:

210Pb:

7Be:

54Mn

228Ac:

210Po:

(mBq)

289.74

15.07

0.82

0.41

<0.032

3.54

0.19

<3248.00

The measurements of the samples below take into account the background measurement shown above. If a measurement is below the background then the upper bound shown is the 90% confidence limit.

SNOLAB Measurements:

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Run Numbers

Counting Dates
(if applicable)

SNOLAB G001

Acrylic Stand 1 made by SNOLAB Installation Group

P1: 10.5

180924

Sep 24, 2018

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Acrylic Stand 1

P2: 36.792

Oct 5, 2018

(mBq/kg)

4.15

0.21

9.43

2.26

0.23

0.11

1.87

0.16

4.03

0.72

0.029

0.062

0.059

0.026

No Backgrounds are subtracted from these results

P3: 37.374

181031
181119

Oct 31, 2018

(ppb or ppm)

Dec 12, 2018

Results:

210Pb:

7Be:

54Mn

228Ac:

210Po:

Total is:

190826

Aug 26, 2019

(mBq/kg)

835.51

44.06

2.35

0.80

0.044

0.043

3.60

0.28

10269.00

4584.00

84.666

Oct 4, 2019

(ppb or ppm)

SNOLAB G002

Acrylic Stand 2 made by SNOLAB Installation Group

24.417

181005
181008
181017
181018
181022

Oct 5, 2018

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Acrylic Stand 2

Oct 31, 2018

(mBq/kg)

5.14

0.26

8.69

2.74

0.20

0.30

1.72

0.17

3.86

0.81

<0.14

0.13

0.04

No Backgrounds are subtracted from these results

and

(ppb or ppm)

39.874

181212
190107
19011601

Dec 12, 2018

Results:

210Pb:

7Be:

54Mn

228Ac:

210Po:

Total is:

19011702
19012102
19012201

Jan 23, 2019

(mBq/kg)

864.94

46.00

0.99

0.86

<0.060

3.84

0.34

5860.10

5060.00

64.291

(ppb or ppm)

SNOLAB G003

NIST Sample

28.825 g

2.833

200127

Jan 27, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Powdered Ocean Sediment Calibration Sample

Cross Comparison Sample A

Jan 30, 2020

(mBq/kg)

2898.00

126.40

11270.00

1611.00

585.20

34.85

1458.00

102.10

33933.00

2130.00

3357.60

197.80

22.43

14.88

Sample placed directly on top of the detector

(ppb or ppm)

234.74 ppb

10.24 ppb

0.91 ppm

0.13 ppm

1.03 ppm

0.06 ppm

0.36 ppm

0.03 ppm

1096.04 ppm

68.8 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

241Am:

(mBq/kg)

8358.40

2997.00

<264.90

37.67

23.32

4729.00

207.40

22806.00

1224.00

(ppb or ppm)

0.68 ppm

0.24 ppm

1.16 ppm

0.05 ppm

SNOLAB G004

NIST Sample

28.825 g

4.708

200130

Jan 30, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Powdered Ocean Sediment Calibration Sample

Cross Comparison Sample A

Feb 4, 2020

(mBq/kg)

3819.00

187.70

10400.00

2107.00

449.80

62.29

2875.00

184.00

38322.00

2742.00

3593.90

240.30

18.77

22.74

Sample placed 45mm above the detector (one counting pot container)

(ppb or ppm)

309.34 ppb

15.2 ppb

0.84 ppm

0.17 ppm

0.79 ppm

0.11 ppm

0.71 ppm

0.05 ppm

1237.8 ppm

88.57 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

241Am:

(mBq/kg)

2032.10

5253.00

<527.60

38.04

41.16

5875.00

318.40

20524.00

1173.00

(ppb or ppm)

164.6 ppb

425.49 ppb

1.45 ppm

0.08 ppm

SNOLAB G005

NIST Sample

33.454 g

6.542

200302

Mar 2, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Powdered Ocean Sediment Calibration Sample

Cross Comparison Sample B

Mar 9, 0202

(mBq/kg)

2387.00

88.77

10880.00

1315.00

595.40

23.90

1071.00

65.77

33306.00

1860.00

3355.90

179.80

<17.58

Sample placed directly on top of the detector

(ppb or ppm)

193.35 ppb

7.19 ppb

0.88 ppm

0.11 ppm

1.05 ppm

0.04 ppm

263.47 ppb

16.18 ppb

1075.78 ppm

60.08 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

241Am:

(mBq/kg)

8193.00

1916.00

<157.3

19.55

14.16

4937.00

165.20

22456.00

1172.00

(ppb or ppm)

0.66 ppm

0.16 ppm

1.21 ppm

0.04 ppm

SNOLAB G006

NIST Sample

33.454 g

13.958

200309

Mar 9, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Powdered Ocean Sediment Calibration Sample

Cross Comparison Sample B

Mar 24, 2020

(mBq/kg)

2018.00

96.50

13050.00

1588.00

581.70

35.90

1242.00

84.92

39480.00

2276.00

3554.50

197.60

<18.54

Sample placed 45mm above the detector (one counting pot container)

(ppb or ppm)

163.46 ppb

7.82 ppb

1.06 ppm

0.13 ppm

1.02 ppm

0.06 ppm

305.53 ppb

20.89 ppb

1275.2 ppm

73.51 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

241Am:

(mBq/kg)

11037.00

3353.00

<365.40

16.93

19.91

5735.00

214.50

20729.00

1099.00

(ppb or ppm)

894 ppb

271.59 ppb

1.41 ppm

0.05 ppm

SNOLAB G007

Part No. TS-5

60.3 g

5.500

200204

Feb 4, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Plastic Process Equipment Inc.

Macedonia, OH 44056

Feb 10, 2020

(mBq/kg)

639.00

29.45

2112.00

231.80

107.70

8.01

109.80

12.02

207.50

61.87

1.47

4.57

<1.58

White PTFE Thread Sealant Paste

(ppb or ppm)

51.76 ppb

2.39 ppb

171.07 ppb

18.78 ppb

189.55 ppb

14.1 ppb

27.01 ppb

2.96 ppb

6.7 ppm

2 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

3549.20

882.10

<63.91

<9.21

286.60

26.26

(ppb or ppm)

287.49 ppb

71.45 ppb

70.5 ppb

6.46 ppb

SNOLAB G008

Type: 7093

416.4 g

2.667

200210

Feb 10, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

GST II General Purpose Air and Water Hose

Parker Hannifin Corp

Feb 13, 2020

(mBq/kg)

836.00

31.94

3580.00

336.70

197.80

9.93

388.00

23.53

1367.40

122.50

<5.19

<2.54

(ppb or ppm)

67.72 ppb

2.59 ppb

289.98 ppb

27.27 ppb

348.13 ppb

17.47 ppb

95.45 ppb

5.79 ppb

44.17 ppm

3.96 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

6020.20

698.00

<64.99

4.98

4.97

1423.00

53.25

(ppb or ppm)

487.64 ppb

56.54 ppb

350.06 ppb

13.1 ppb

SNOLAB G009

ID Type: GL00215

888.7 g

4.708

200213

Feb 13, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Gates Adapta Flex Multipurpose 1 ½” Hose

Feb 18, 2020

(mBq/kg)

140.90

6.15

478.60

56.90

16.35

1.96

60.11

4.34

607.97

52.92

<1.41

<0.80

(ppb or ppm)

11.41 ppb

0.5 ppb

38.77 ppb

4.61 ppb

28.78 ppb

3.45 ppb

14.79 ppb

1.07 ppb

19.64 ppm

1.71 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

385.05

227.90

11.30

12.20

1.63

1.07

103.30

7.37

(ppb or ppm)

31.19 ppb

18.46 ppb

25.41 ppb

1.81 ppb

SNOLAB G010

Type: 7322

1041.7 g

2.917

200218

Feb 18, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Parker Series Super Flex Hose

Large Diameter General Service Air and Water Hose

Feb 21, 2020

(mBq/kg)

1107.00

36.25

884.00

365.20

253.40

10.70

382.90

22.29

2997.50

195.50

<2.69

2.07

2.11

Material: EPDM

(ppb or ppm)

89.67 ppb

2.94 ppb

71.6 ppb

29.58 ppb

445.98 ppb

18.83 ppb

94.19 ppb

5.48 ppb

96.82 ppm

6.31 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

8670.80

856.20

<67.74

12.68

4.89

1865.00

61.37

(ppb or ppm)

702.33 ppb

69.35 ppb

458.79 ppb

15.1 ppb

SNOLAB G011

Fittings are made from polypropylene

456.8 g

3.625

200221

Feb 21, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Philmac Compression Fittings

This sample contains only ½” size fittings

Feb 25, 2020

(mBq/kg)

320.50

14.81

1246.00

153.50

58.64

5.28

226.60

15.11

304.66

49.72

<2.16

0.68

1.14

Fitting Labels: IPS SIDR

(ppb or ppm)

25.96 ppb

1.2 ppb

100.93 ppb

12.43 ppb

103.21 ppb

9.3 ppb

55.74 ppb

3.72 ppb

9.84 ppm

1.61 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

1950.80

500.70

<43.48

5.34

3.51

682.90

29.93

(ppb or ppm)

158.01 ppb

40.56 ppb

167.99 ppb

7.36 ppb

SNOLAB G012

Fittings are made from polypropylene

469.8 g

5.958

200225

Feb 25, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Philmac Compression Fittings

This sample contains a 1 ¾” size fitting

Mar 2, 2020

(mBq/kg)

434.00

17.79

1939.00

204.30

71.18

6.32

421.90

23.33

538.18

61.57

<3.05

1.25

1.31

Fitting Labels: IPS SIDR

(ppb or ppm)

35.15 ppb

1.44 ppb

157.06 ppb

16.55 ppb

125.28 ppb

11.12 ppb

103.79 ppb

5.74 ppb

17.38 ppm

1.99 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

1424.30

503.80

<47.53

15.11

4.45

1797.00

57.48

(ppb or ppm)

115.37 ppb

40.81 ppb

442.06 ppb

14.14 ppb

SNOLAB G013

Sample from TAD Expansion Project

919.2 g

6.778

230531

May 31, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Steel L-Shaped Holder Plate
(Rabbit Ear)

Jun 7, 2023

(mBq/kg)

13.03

1.52

22.28

29.67

<1.37

24.55

1.98

289.01

23.77

<0.65

<0.68

(ppb or ppm)

1.06 ppb

0.12 ppb

1.8 ppb

2.4 ppb

<2.41 ppb

6.04 ppb

0.49 ppb

9.34 ppm

0.77 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

<529.90

<11.56

1.13

0.60

29.35

3.19

(ppb or ppm)

<42.92 ppb

7.22 ppb

0.78 ppb

SNOLAB G014

Sample from TAD Expansion Project

225.8 g

2.034

230607

Jun 7, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Shotcrete

Jun 9, 2023

(mBq/kg)

18330.00

380.80

35880.00

2108.00

941.50

33.99

47100.00

996.60

396360.00

20320.00

<25.43

<70.98

(ppb or ppm)

1484.73 ppb

30.84 ppb

2906.28 ppb

170.75 ppb

1657.04 ppb

59.82 ppb

11586.6 ppb

245.16 ppb

12802.43 ppm

656.34 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

18328.00

1792.00

158.97

306.60

354.95

43.54

39830.00

959.40

(ppb or ppm)

1484.57 ppb

145.15 ppb

9798.18 ppb

236.01 ppb

SNOLAB G015

Sample from TAD Expansion Project

58.2 g

11.618

230609

Jun 9, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Chain – Two Links

Jun 21, 2023

(mBq/kg)

<1.31

<93.93

<2.74

21.21

4.44

126.43

30.35

<3.14

<2.58

(ppb or ppm)

<0.11 ppb

<7.61 ppb

<4.82 ppb

5.22 ppb

1.09 ppb

4.08 ppm

0.98 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

<423.80

<23.09

<2.93

13.61

6.62

(ppb or ppm)

<34.33 ppb

3.35 ppb

1.63 ppb

SNOLAB G016

Grizzly Claw

171.8 g

3.923

240212

Feb 12, 2024

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Kicking Horse Coffee

Kicking Horse Coffee Company

Feb 16, 2024

(mBq/kg)

35.48

11.31

<280.10

<8.08

10.19

8.43

336360.00

17220.00

70.55

16.09

14.02

14.40

(ppb or ppm)

2.87 ppb

0.92 ppb

<22.69 ppb

<14.22 ppb

2.51 ppb

2.07 ppb

10864.43 ppm

556.21 ppm

Coffee Used Underground at SNOLAB

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

<118.40

<64.64

37.27

14.12

62.02

40.58

(ppb or ppm)

<9.59 ppb

15.26 ppb

9.98 ppb

SNOLAB G017

Ultra Spec 500 Interior Semi-Gloss F546 Paint

483.5 g

9.972

240216

Feb 16, 2024

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Benjamin Moore Paint

Feb 26, 2024

(mBq/kg)

765.50

19.16

1350.00

111.20

30.87

2.59

1367.00

37.22

20995.00

1085.00

<3.63

<1.86

Benjamin Moore Inc, Concord ON

(ppb or ppm)

62.01 ppb

1.55 ppb

109.35 ppb

9.01 ppb

54.33 ppb

4.55 ppb

336.28 ppb

9.16 ppb

678.14 ppm

35.05 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

<118.80

32.24

26.84

9.01

3.25

1402.00

40.40

(ppb or ppm)

<9.62 ppb

344.89 ppb

9.94 ppb

SNOLAB G018

72% Cocoa

201.3 g

5.021

240425

Apr 25, 2024

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Irresistibles Dark Chocolate

Made In Switzerland

Apr 30, 2024

(mBq/kg)

746.70

26.50

828.10

166.00

26.74

5.66

405.30

21.14

243680.00

12480.00

113.43

15.56

<21.91

(ppb or ppm)

60.48 ppb

2.15 ppb

67.08 ppb

13.45 ppb

47.06 ppb

9.95 ppb

99.7 ppb

5.2 ppb

7870.86 ppm

403.1 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

<138.80

<115.40

<13.56

897.30

49.21

(ppb or ppm)

<11.24 ppb

220.74 ppb

12.11 ppb

SENSEI Measurements:

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Run Numbers

Counting Dates
(if applicable)

SENSEI G001

Aurubis copper,
Type C110

610.5 g

12.917

19061106
19061704

Jun 11, 2019

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Copper Plate

Plate is 4”x4”x1/4”

Jun 25, 2019

(mBq/kg)

<0.14

<13.58

0.35

0.43

<0.20

1.49

1.85

<0.27

0.056

0.086

(ppb or ppm)

<0.01 ppb

<1.1 ppb

0.61 ppb

0.75 ppb

<0.05 ppb

0.05 ppm

0.06 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

210Po:

(mBq/kg)

4568.00

33810.00

<1.84

0.09

0.11

<1.21

<9410.00

(ppb or ppm)

0.37 ppm

2.74 ppm

<0.3 ppb

<0.76 ppm

SENSEI G002

Aurubis copper,
Type C101

602.2 g

14.000

190717

Jul 17, 2019

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Copper Plate

Plate is 4”x4”x1/4”

Aug 1, 2019

(mBq/kg)

0.76

0.46

<15.52

0.24

0.41

<0.26

<1.66

<0.22

0.11

0.08

(ppb or ppm)

0.06 ppb

0.04 ppb

<1.26 ppb

0.42 ppb

0.73 ppb

<0.06 ppb

<53.62 ppb

Results:

210Pb:

7Be:

54Mn

228Ac:

210Po:

(mBq/kg)

<53790.00

0.35

2.23

<0.23

<0.95

<8695.00

(ppb or ppm)

<4.36 ppm

<0.23 ppb

<0.7 ppm

SENSEI G003

Aurubis copper,
Type C110

601.9 g

7.542

190709

Jul 9, 2019

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Copper Plate

Plate is 4”x4”x1/4”

Jul 17, 2019

(mBq/kg)

5.63

0.80

<14.73

<0.78

<0.54

<2.81

<0.20

<0.14

This plate was counted as G001, it was then etched and passivated following the PNNL method on 2019-07-04.

(ppb or ppm)

0.46 ppb

0.06 ppb

<1.19 ppb

<1.37 ppb

<0.13 ppb

<90.76 ppb

Results:

210Pb:

7Be:

54Mn

228Ac:

210Po:

(mBq/kg)

56784.00

38532.00

<1.96

0.10

0.23

<0.88

<10370.00

(ppb or ppm)

4.6 ppm

3.12 ppm

<0.22 ppb

<0.84 ppm

SENSEI G004

Aurubis copper,
Type C101

601.9 g

7.583

190801
190806

Aug 1, 2019

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Copper Plate

Plate is 4”x4”x1/4”

Aug 26, 2019

(mBq/kg)

8.97

0.95

12.69

14.32

0.80

0.57

<0.36

<2.70

0.47

0.29

0.05

0.13

This plate was counted as G001 and G003. It has now been U/S cleaned on 20190726 U/S #1226

(ppb or ppm)

0.73 ppb

0.08 ppb

1.03 ppb

1.16 ppb

1.41 ppb

1.01 ppb

<0.09 ppb

<87.21 ppb

Results:

210Pb:

7Be:

54Mn

228Ac:

210Po:

(mBq/kg)

<62200.0

<4.64

<0.17

<1.01

<28500.00

(ppb or ppm)

<5.04 ppm

<0.25 ppb

<2.31 ppm

SENSEI G005

Aurubis copper, Type Unknown

2120.54 g

16.542

191219

Dec 19, 2019

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Copper Block

Plate is 2.5”x 2.5”x 2”

Jan 6, 2020

(mBq/kg)

<0.033

1.34

1.77

0.01

0.09

<0.10

<0.85

<0.072

0.004

0.021

This piece was cut at SNOLAB from a larger 6”x6”x2” plate

(ppb or ppm)

<2.67 ppt

0.11 ppb

0.14 ppb

0.02 ppb

0.17 ppb

<24.6 ppt

<27.46 ppb

Results:

210Pb:

7Be:

54Mn

228Ac:

210Po:

(mBq/kg)

<39.90

<0.83

<0.062

<0.31

<4347.00

(ppb or ppm)

<3.23 ppb

<76.26 ppt

<352.11 ppb

SENSEI G006

Aurubis copper, Type Unknown

2194.25 g

19.500

200106

Jan 6, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Copper Block
(No Surface Milling)

Plate is 2.5”x 2.5”x 2”

Jan 27, 2020

(mBq/kg)

<0.019

2.28

1.77

0.041

0.085

<0.076

0.35

0.57

0.034

0.050

0.010

0.021

This piece was cut at SNOLAB from a larger 6”x6”x2” plate

(ppb or ppm)

<1.54 ppt

0.18 ppb

0.14 ppb

0.07 ppb

0.15 ppb

<0.02 ppb

11.41 ppb

18.31 ppb

Results:

210Pb:

7Be:

54Mn

228Ac:

210Po:

58Co:

(mBq/kg)

<41.37

<0.49

<0.065

<0.15

<2670.00

0.135

0.044

(ppb or ppm)

<3.35 ppb

<0.04 ppb

<216.27 ppb

Super CDMS Measurements:

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Run Numbers

Counting Dates
(if applicable)

33 samples have been counted for SuperCDMS, results are only available to SuperCDMS collaboration members.

CUTE Measurements:

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Run Numbers

Counting Dates
(if applicable)

CUTE G01

FEP Jacket with PTFE Dialetric and Copper Conductor

18.9 g

14.861

220531

May 31, 2022

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

SMA Coax Cable

Jun 15, 2022

(mBq/kg)

275.90

18.91

<172.70

<6.76

18.33

16.11

140.20

92.13

4.46

6.83

<6.48

(ppb or ppm)

22.35 ppb

1.53 ppb

<13.99 ppb

<11.9 ppb

4.51 ppb

3.96 ppb

4.53 ppm

2.98 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

<5795.00

<135.30

2.97

5.31

24.35

23.48

(ppb or ppm)

<469.4 ppb

5.99 ppb

5.78 ppb

CUTE G02

8 Small Copper “L” shaped copper pieces

45.0 g

13.785

220517

May 17, 2022

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Copper Plates

May 31, 2022

(mBq/kg)

88.66

10.30

<164.00

<10.62

17.82

11.39

44.82

51.93

<7.61

<1.27

(ppb or ppm)

7.18 ppb

0.83 ppb

<13.28 ppb

<18.69 ppb

4.38 ppb

2.8 ppb

1.45 ppm

1.68 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

<11640.00

53.38

55.74

<3.32

<15.52

(ppb or ppm)

<942.84 ppb

<3.82 ppb

CUTE G03

1.1 g

12.764

220615

Jun 15, 2022

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

M3 Brass Threaded Rod

Jun 28, 2022

(mBq/kg)

<248.70

<1297.00

<99.45

342.00

187.70

<1345.00

<81.93

<30.55

(ppb or ppm)

<20.14 ppb

<105.06 ppb

<175.03 ppb

84.13 ppb

46.17 ppb

<43.44 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

<13410.00

567.83

919.10

<53.79

164.90

254.30

(ppb or ppm)

<1.09 ppm

40.57 ppb

62.56 ppb

CUTE G04

243.3 g

6.722

220916

Sep 16, 2022

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

133Ba SRS-22-001-C Rinse Solution

Sep 23, 2022

(mBq/kg)

6.21

2.98

<34.31

<8.16

<5.07

15.14

13.21

<2.03

<0.37

(ppb or ppm)

0.5 ppb

0.24 ppb

<2.78 ppb

<14.36 ppb

<1.25 ppb

489.02 ppb

426.68 ppb

Results:

210Pb:

7Be:

54Mn

228Ac:

133Ba:

(mBq/kg)

<427.20

<11.57

<0.62

<7.17

7305.10

368.20

(ppb or ppm)

<34.6 ppb

<1.76 ppb

CUTE G05

259.5 g

20.791

220923

Sep 23, 2022

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

133Ba SRS-22-001-D Rinse Solution

Oct 14, 2022

(mBq/kg)

2.39

1.57

<15.67

<1.35

3.86

1.56

4.67

7.56

<1.35

<0.27

(ppb or ppm)

0.19 ppb

0.13 ppb

<1.27 ppb

<2.38 ppb

0.95 ppb

0.38 ppb

150.68 ppb

244.22 ppb

Results:

210Pb:

7Be:

54Mn

228Ac:

133Ba:

(mBq/kg)

<168.50

<8.46

<0.52

<4.72

87.77

5.18

(ppb or ppm)

<13.65 ppb

<1.16 ppb

CUTE G06

Rinse Test #2

255.9 g

9.917

221021

Oct 21, 2022

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

133Ba SRS-22-001-A Rinse Solution

Oct 31, 2022

(mBq/kg)

5.07

1.74

<34.79

0.24

0.91

<5.32

<25.14

<0.83

<0.56

(ppb or ppm)

0.41 ppb

0.14 ppb

<2.82 ppb

0.43 ppb

1.6 ppb

<1.31 ppb

<812.02 ppb

Results:

210Pb:

7Be:

54Mn

228Ac:

133Ba:

(mBq/kg)

<181.60

<12.72

<0.75

<6.00

<1.22

(ppb or ppm)

<14.71 ppb

<1.48 ppb

CUTE G07

Rinse Test #2

265.1 g

9.021

221031

Oct 31, 2022

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

133Ba SRS-22-001-C Rinse Solution

Nov 9, 2022

(mBq/kg)

<2.91

<22.41

<0.92

<7.68

14.42

10.98

<1.29

<0.57

(ppb or ppm)

<0.24 ppb

<1.82 ppb

<1.62 ppb

<1.89 ppb

0.47 ppm

0.35 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

133Ba:

(mBq/kg)

143.10

129.10

<21.22

<0.56

<6.67

<1.27

(ppb or ppm)

11.59 ppb

10.46 ppb

<1.64 ppb

CUTE G08

12.3 g

8.028

240411

Apr 11, 2024

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

PCB & Connector

Apr 19, 2024

(mBq/kg)

374.50

10.60

597.10

47.33

21.50

1.48

487.20

15.81

667.36

49.69

<3.10

<2.09

(ppb or ppm)

30.33 ppb

0.86 ppb

48.37 ppb

3.83 ppb

37.84 ppb

2.61 ppb

119.85 ppb

3.89 ppb

21.56 ppm

1.6 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

278.88

86.54

10.34

17.02

3.01

2.00

625.80

20.16

(ppb or ppm)

22.59 ppb

7.01 ppb

153.95 ppb

4.96 ppb

CUTE G09

13.9 g

5.743

240419

Apr 19, 2024

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Cable and Connectors

Apr 25, 2024

(mBq/kg)

1185.00

67.76

6832.00

671.50

181.50

21.18

1011.00

72.48

665.58

274.30

<33.46

<7.77

(ppb or ppm)

95.99 ppb

5.49 ppb

553.39 ppb

54.39 ppb

319.44 ppb

37.28 ppb

248.71 ppb

17.83 ppb

21.5 ppm

8.86 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

7787.50

1736.00

<309.60

23.93

18.30

1250.00

114.90

(ppb or ppm)

630.79 ppb

140.62 ppb

307.5 ppb

28.27 ppb

QBITS-CUTE Measurements:

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Run Numbers

Counting Dates
(if applicable)

QBITS-CUTE G01

9.0 g

9.382

220726
220729

Jul 26, 2022

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Nb Superconducting Coax Cable with Crimp Connectors

Aug 5, 2022

(mBq/kg)

1200.00

73.79

<1721.00

<34.58

290.70

49.08

357.64

244.10

<23.75

<22.68

(ppb or ppm)

97.2 ppb

5.98 ppb

<139.4 ppb

<60.86 ppb

71.51 ppb

12.07 ppb

11.55 ppm

7.88 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

<26610.00

<272.20

<13.16

24.47

66.91

(ppb or ppm)

<0.22 ppm

6.02 ppb

16.46 ppb

QBITS-CUTE G02

39.9 g

12.833

220805

Aug 5, 2022

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Stainless Steel Cables with Connectors

Aug 18, 2022

(mBq/kg)

<10.91

163.50

217.80

<7.35

103.20

13.78

112.29

67.69

<12.82

2.04

2.83

(ppb or ppm)

<0.88 ppb

13.24 ppb

17.64 ppb

<12.94 ppb

25.39 ppb

3.39 ppb

3.63 ppm

2.19 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

57Co

58Co:

(mBq/kg)

<1896.00

<58.01

<3.67

<37.24

<15.19

<6.43

(ppb or ppm)

<153.58 ppb

<9.16 ppb

nEXO Measurements:

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Run Numbers

Counting Dates
(if applicable)

2 samples have been counted for nEXO, results are only available to nEXO collaboration members.

CNL Measurements:

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Run Numbers

Counting Dates
(if applicable)

CNL G01

44.7003 g

4.826

230202

Feb 2, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Pembroke Site 3
0-5 cm

Feb 7, 2023

(mBq/kg)

8068.00

202.80

15370.00

1042.00

423.20

23.05

9729.00

279.20

485700.00

24970.00

3525.50

194.10

88.57

38.31

(ppb or ppm)

653.51 ppb

16.43 ppb

1244.97 ppb

84.4 ppb

744.83 ppb

40.57 ppb

2393.33 ppb

68.68 ppb

15688.11 ppm

806.53 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

32005.00

2111.00

688.40

316.30

<66.49

10120.00

311.70

(ppb or ppm)

2592.41 ppb

170.99 ppb

2489.52 ppb

76.68 ppb

CNL G02

29.1940 g

3.028

230207

Feb 7, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Pembroke Site 2
0-5 cm

Feb 10, 2023

(mBq/kg)

8283.00

237.00

134300.00

1075.00

400.30

29.82

7601.00

255.10

427590.00

22210.00

4436.00

257.70

<67.36

(ppb or ppm)

670.92 ppb

19.2 ppb

10878.3 ppb

87.08 ppb

704.53 ppb

52.48 ppb

1869.85 ppb

62.75 ppb

13811.16 ppm

717.38 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

43942.00

2893.00

1379.30

459.30

62.21

53.26

7718.00

310.90

(ppb or ppm)

3559.3 ppb

234.33 ppb

1898.63 ppb

76.48 ppb

CNL G03

39.0012 g

2.875

230210

Feb 10, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Pembroke Site 1
0-5 cm

Feb 13, 2023

(mBq/kg)

7880.00

223.10

14380.00

1170.00

397.80

30.81

10590.00

329.60

505920.00

26140.00

3988.90

232.50

<85.46

(ppb or ppm)

638.28 ppb

18.07 ppb

1164.78 ppb

94.77 ppb

700.13 ppb

54.23 ppb

2605.14 ppb

81.08 ppb

16341.22 ppm

844.32 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

45284.00

3042.00

950.10

432.70

98.74

55.25

11220.00

383.90

(ppb or ppm)

3668 ppb

246.4 ppb

2760.12 ppb

94.44 ppb

CNL G04

43.3920 g

3.896

230213

Feb 13, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Lemiuex Island
0-5 cm

Feb 17, 2023

(mBq/kg)

10030.00

251.90

22010.00

1452.00

626.20

30.12

15910.00

435.90

423840.00

21850.00

2877.40

168.30

17.36

42.64

(ppb or ppm)

812.43 ppb

20.4 ppb

1782.81 ppb

117.61 ppb

1102.11 ppb

53.01 ppb

3913.86 ppb

107.23 ppb

13690.03 ppm

705.76 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

40755.00

2620.00

375.69

362.20

97.25

45.84

15550.00

453.10

(ppb or ppm)

3301.16 ppb

212.22 ppb

3825.3 ppb

111.46 ppb

CNL G05

24.0637 g

3.951

230217

Feb 17, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

22-ES-004
0-5 cm

Feb 21, 2023

(mBq/kg)

12440.00

319.00

18000.00

1345.00

734.20

36.33

14220.00

419.00

261260.00

13690.00

8746.10

470.40

84.55

46.79

(ppb or ppm)

1007.64 ppb

25.84 ppb

1458 ppb

108.95 ppb

1292.19 ppb

63.94 ppb

3498.12 ppb

103.07 ppb

8438.7 ppm

442.19 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

90779.00

5137.00

1735.90

477.80

126.72

52.40

13700.00

446.30

(ppb or ppm)

7353.1 ppb

416.1 ppb

3370.2 ppb

109.79 ppb

CNL G06

38.5346 g

3.048

230221

Feb 21, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

22-ES-003
0-5 cm

Feb 24, 2023

(mBq/kg)

14950.00

369.00

24250.00

1802.00

881.50

42.62

26380.00

748.80

400110.00

20720.00

4554.30

261.60

<65.58

(ppb or ppm)

1210.95 ppb

29.89 ppb

1964.25 ppb

145.96 ppb

1551.44 ppb

75.01 ppb

6489.48 ppb

184.2 ppb

12923.55 ppm

669.26 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

58205.00

3681.00

1447.50

530.50

275.43

66.15

28320.00

775.80

(ppb or ppm)

4714.61 ppb

298.16 ppb

6966.72 ppb

190.85 ppb

CNL G07

15.6454 g

3.819

230224

Feb 24, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

22-ES-002
0-5 cm

Feb 28, 2023

(mBq/kg)

8969.00

269.80

12950.00

1218.00

563.50

41.13

8679.00

303.70

221600.00

11860.00

31081.00

1614.00

<47.57

(ppb or ppm)

726.49 ppb

21.85 ppb

1048.95 ppb

98.66 ppb

991.76 ppb

72.39 ppb

2135.03 ppb

74.71 ppb

7157.68 ppm

383.08 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

148340.00

8304.00

1177.20

677.00

36.53

56.87

9419.00

391.10

(ppb or ppm)

12015.54 ppb

672.62 ppb

2317.07 ppb

96.21 ppb

CNL G08

35.0914 g

2.979

230228

Feb 28, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

22-ES-005
0-5 cm

Mar 3, 2023

(mBq/kg)

16980.00

412.10

29430.00

1921.00

992.40

45.52

21960.00

608.00

339530.00

17660.00

7757.00

422.20

<107.20

(ppb or ppm)

1375.38 ppb

33.38 ppb

2383.83 ppb

155.6 ppb

1746.62 ppb

80.12 ppb

5402.16 ppb

149.57 ppb

10966.82 ppm

570.42 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

59478.00

3788.00

872.31

517.90

256.09

62.97

21940.00

640.90

(ppb or ppm)

4817.72 ppb

306.83 ppb

5397.24 ppb

157.66 ppb

CNL G09

32.5213 g

3.882

230303

Mar 3, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

22-ES-006
0-5 cm

Mar 7, 2023

(mBq/kg)

19280.00

447.00

32890.00

2072.00

1101.00

45.17

20800.00

570.70

388440.00

20120.00

1034.00

<89.61

(ppb or ppm)

1561.68 ppb

36.21 ppb

2664.09 ppb

167.83 ppb

1937.76 ppb

79.5 ppb

5116.8 ppb

140.39 ppb

12546.61 ppm

649.88 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

65056.00

3974.00

430.04

526.40

130.24

57.00

20230.00

593.60

(ppb or ppm)

5269.54 ppb

321.89 ppb

4976.58 ppb

146.03 ppb

CNL G10

33.1979 g

2.917

230307

Mar 7, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Princess Sodalite Mine
0-5 cm

Mar 10, 2023

(mBq/kg)

17580.00

433.10

32610.00

2140.00

907.90

46.12

22230.00

623.30

575340.00

29660.00

754.53

97.23

<80.67

(ppb or ppm)

1423.98 ppb

35.08 ppb

2641.41 ppb

173.34 ppb

1597.9 ppb

81.17 ppb

5468.58 ppb

153.33 ppb

18583.48 ppm

958.02 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

65413.00

4185.00

476.07

536.20

121.36

69.39

22780.00

674.60

(ppb or ppm)

5298.45 ppb

338.99 ppb

5603.88 ppb

165.95 ppb

CNL G11

25.1502 g

6.955

230310

Mar 10, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Silver Crater Mine
0-5 cm

Mar 17, 2023

(mBq/kg)

81060.00

1512.00

262100.00

11340.00

7093.00

162.80

39240.00

980.50

392930.00

20290.00

6300.60

340.60

<53.82

(ppb or ppm)

6565.86 ppb

122.47 ppb

21230.1 ppb

918.54 ppb

12483.68 ppb

286.53 ppb

9653.04 ppb

241.2 ppb

12691.64 ppm

655.37 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

143150.00

7716.00

1525.80

575.20

114.46

67.20

37610.00

970.70

(ppb or ppm)

11595.15 ppb

625 ppb

9252.06 ppb

238.79 ppb

CNL G12

49.9717 g

3.882

230317

Mar 17, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Princess Sodalite Mine
5-10 cm

Mar 21, 2023

(mBq/kg)

15550.00

356.00

29010.00

1771.00

819.40

34.10

19610.00

520.60

588960.00

30230.00

190.03

57.60

60.03

46.57

(ppb or ppm)

1259.55 ppb

28.84 ppb

2349.81 ppb

143.45 ppb

1442.14 ppb

60.02 ppb

4824.06 ppb

128.07 ppb

19023.41 ppm

976.43 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

19843.00

1749.00

279.87

374.60

107.99

49.53

18970.00

553.50

(ppb or ppm)

1607.28 ppb

141.67 ppb

4666.62 ppb

136.16 ppb

CNL G13

14.2047 g

2.847

230321

Mar 21, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Forest 1-7
0-5 cm

Mar 24, 2023

(mBq/kg)

7474.00

258.60

11220.00

1267.00

338.40

42.59

6076.00

260.40

317510.00

17060.00

15960.00

874.30

<100.80

(ppb or ppm)

605.39 ppb

20.95 ppb

908.82 ppb

102.63 ppb

595.58 ppb

74.96 ppb

1494.7 ppb

64.06 ppb

10255.57 ppm

551.04 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

212480.00

11800.00

1762.30

721.90

<95.55

6155.00

348.40

(ppb or ppm)

17210.88 ppb

955.8 ppb

1514.13 ppb

85.71 ppb

CNL G14

38.0931 g

3.979

230324

Mar 24, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Forest 1-6
10-15 cm

Mar 28, 2023

(mBq/kg)

11490.00

284.00

18510.00

1249.00

553.50

29.35

8978.00

274.50

477750.00

24600.00

1728.60

115.40

31.24

44.99

(ppb or ppm)

930.69 ppb

23 ppb

1499.31 ppb

101.17 ppb

974.16 ppb

51.66 ppb

2208.59 ppb

67.53 ppb

15431.33 ppm

794.58 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

16280.00

1699.00

398.72

358.50

14.73

43.92

9340.00

317.30

(ppb or ppm)

1318.68 ppb

137.62 ppb

2297.64 ppb

78.06 ppb

CNL G15

10.7889 g

2.958

230328

Mar 28, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Forest 2-4
0-5 cm

Mar 31, 2023

(mBq/kg)

6494.00

259.80

11920.00

1471.00

357.50

48.87

6507.00

290.00

357580.00

19430.00

17980.00

1000.00

140.00

83.62

(ppb or ppm)

526.01 ppb

21.04 ppb

965.52 ppb

119.15 ppb

629.2 ppb

86.01 ppb

1600.72 ppb

71.34 ppb

11549.83 ppm

627.59 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

259040.00

14560.00

<1241.00

70.62

77.35

6084.00

295.10

(ppb or ppm)

20982.24 ppb

1179.36 ppb

1496.66 ppb

72.59 ppb

CNL G16

37.0549 g

3.965

230331

Mar 31, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Forest 1-3
10-15 cm

Apr 4, 2023

(mBq/kg)

12710.00

309.10

19690.00

1331.00

655.30

31.06

9605.00

290.10

439010.00

22630.00

3082.60

180.30

<45.06

(ppb or ppm)

1029.51 ppb

25.04 ppb

1594.89 ppb

107.81 ppb

1153.33 ppb

54.67 ppb

2362.83 ppb

71.36 ppb

14180.02 ppm

730.95 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

24099.00

1995.00

<551.80

<78.03

9843.00

333.40

(ppb or ppm)

1952.02 ppb

161.6 ppb

2421.38 ppb

82.02 ppb

CNL G17

30.4842 g

6.944

230404

Apr 4, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Forest 2-5
5-10 cm

Apr 11, 2023

(mBq/kg)

7969.00

199.10

12460.00

903.20

452.60

22.68

6763.00

206.00

458880.00

23580.00

8806.00

456.30

31.81

36.57

(ppb or ppm)

645.49 ppb

16.13 ppb

1009.26 ppb

73.16 ppb

796.58 ppb

39.92 ppb

1663.7 ppb

50.68 ppb

14821.82 ppm

761.63 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

76126.00

4258.00

<468.70

29.27

35.49

6680.00

235.80

(ppb or ppm)

6166.21 ppb

344.9 ppb

1643.28 ppb

58.01 ppb

CNL G18

72.7095 g

2.674

230411

Apr 11, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Forest 2-3
10-15 cm

Apr 14, 2023

(mBq/kg)

6195.00

168.60

13110.00

953.90

389.00

23.09

11020.00

312.30

384700.00

19800.00

1399.50

93.16

<30.11

(ppb or ppm)

501.8 ppb

13.66 ppb

1061.91 ppb

77.27 ppb

684.64 ppb

40.64 ppb

2710.92 ppb

76.83 ppb

12425.81 ppm

639.54 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

10787.00

1213.00

542.75

301.30

106.22

38.52

10710.00

331.40

(ppb or ppm)

873.75 ppb

98.25 ppb

2634.66 ppb

81.52 ppb

CNL G19

19.6234 g

4.951

290414

Apr 14, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Forest 2-1
0-5 cm

Apr 19, 2023

(mBq/kg)

4617.00

149.10

9068.00

849.20

303.10

25.82

6584.00

222.10

253900.00

13320.00

17473.00

907.30

<58.43

(ppb or ppm)

373.98 ppb

12.08 ppb

734.51 ppb

68.79 ppb

533.46 ppb

45.44 ppb

1619.66 ppb

54.64 ppb

8200.97 ppm

430.24 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

92147.00

5208.00

366.78

421.30

71.68

41.69

7178.00

283.70

(ppb or ppm)

7463.91 ppb

421.85 ppb

1765.79 ppb

69.79 ppb

CNL G20

45.3675 g

5.879

290419

Apr 19, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Forest 2-2
5-10 cm

Apr 25, 2023

(mBq/kg)

6263.00

158.50

13260.00

889.80

382.50

19.94

10070.00

277.10

361650.00

18580.00

8527.80

444.00

<42.85

(ppb or ppm)

507.3 ppb

12.84 ppb

1074.06 ppb

72.07 ppb

673.2 ppb

35.09 ppb

2477.22 ppb

68.17 ppb

11681.3 ppm

600.13 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

21949.00

1552.00

441.83

268.70

95.65

31.40

9813.00

292.50

(ppb or ppm)

1777.87 ppb

125.71 ppb

2414 ppb

71.96 ppb

CNL G21

13.8283 g

6.390

230425

Apr 25, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Forest 1-4
0-5 cm

May 2, 2023

(mBq/kg)

9956.00

265.40

13740.00

1081.00

572.80

32.75

6974.00

237.70

297410.00

15630.00

12627.00

668.10

<92.36

(ppb or ppm)

806.44 ppb

21.5 ppb

1112.94 ppb

87.56 ppb

1008.13 ppb

57.64 ppb

1715.6 ppb

58.47 ppb

9606.34 ppm

504.85 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

182580.00

9933.00

<884.20

<76.69

7162.00

286.90

(ppb or ppm)

14.79 ppm

0.8 ppm

1761.85 ppb

70.58 ppb

CNL G22

32.5420 g

6.854

230705

Jul 5, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

G22 PAN-AM Resin Test Pacific Salmon

Jul 12, 2023

(mBq/kg)

<22.87

<262.80

<10.44

<18.41

16861.00

970.70

215.94

19.42

<6.52

(ppb or ppm)

<1.85 ppb

<21.29 ppb

<18.37 ppb

<4.53 ppb

544.61 ppm

31.35 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

<1726.00

<156.40

<7.86

<43.43

(ppb or ppm)

<139.81 ppb

<10.68 ppb

CNL G23

31.538 g

14.660

23071204

Jul 12, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Untreated Resin

Jul 27, 2023

(mBq/kg)

51.14

7.57

<73.46

<4.28

<17.73

49.02

45.10

<5.12

<2.02

(ppb or ppm)

4.14 ppb

0.61 ppb

<5.95 ppb

<7.53 ppb

<4.36 ppb

1.58 ppm

1.46 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

<1435.00

46.30

43.33

<2.80

16.41

12.30

(ppb or ppm)

<116.24 ppb

4.04 ppb

3.03 ppb

PICO Measurements:

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Run Numbers

Counting Dates
(if applicable)

PICO G01

51.483 g

7.458

240305

Mar 5, 2024

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

PICO Kapton Heater Material

Mar 15, 2024

(mBq/kg)

<9.24

<131.20

<3.77

45.30

8.85

377.53

71.26

<5.92

<7.33

(ppb or ppm)

<0.75 ppb

<10.63 ppb

<6.64 ppb

11.14 ppb

2.18 ppb

12.19 ppm

2.3 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

<313.20

46.15

41.92

<2.52

12.45

12.88

(ppb or ppm)

<25.37 ppb

3.06 ppb

3.17 ppb

In Progress and To Be Measured:

Background 9

45.520

220901
221014
221109
230118

Sep 1, 2022

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Background with large acrylic stand

Jan 25, 2023

(mBq)

4.02

0.19

4.70

1.81

0.024

0.070

2.84

0.19

7.63

0.89

<0.11

0.166

0.281

Acrylic Stand 1

210Pb

7Be:

54Mn

228Ac:

210Po:

(mBq)

291.74

15.77

0.82

0.72

<0.094

3.64

0.28

<3780.00

Background 10

42.347

230502
230621

May 2, 2023

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Completely Empty Detector

May 31, 2023

(mBq)

2.50

0.16

4.37

1.91

0.286

0.075

2.87

0.20

8.64

1.02

0.05

0.07

0.052

0.035

210Pb

7Be:

54Mn

228Ac:

210Po:

(mBq)

277.34

15.13

<1.42

<0.035

3.58

0.30

8544.00

5299.00

Background 11

26.582

240226

Mar 15, 2024

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Background with large acrylic stand

Apr 11, 2024

(mBq)

2.63

0.20

6.06

2.46

<0.17

3.56

0.26

9.71

1.32

<0.13

0.071

0.045

Acrylic Stand 1

210Pb

7Be:

54Mn

228Ac:

210Po:

(mBq)

268.75

15.28

<1.19

0.082

0.066

3.43

0.35

6805.50

6785.00

SNOLAB G019

74% Cocoa

201.0 g

1.493

240430

Apr 30, 2024

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Jacquot Dark Chocolate

Made in France

(mBq/kg)

1178.00

49.27

880.20

296.10

29.62

10.69

670.00

40.94

205580.00

10640.00

89.74

26.09

<46.43

(ppb or ppm)

95.42 ppb

3.99 ppb

71.3 ppb

23.98 ppb

52.13 ppb

18.81 ppb

164.82 ppb

10.07 ppb

6640.23 ppm

343.67 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

<207.00

114.53

161.10

<25.34

1768.00

97.14

(ppb or ppm)

<16.77 ppb

434.93 ppb

23.9 ppb

SNOLAB G20

7o% Cocoa

199.9 g

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Lindt Dark Chocolate

Made In Switzerland

(mBq/kg)

(ppb or ppm)

0 ppb

0 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

(ppb or ppm)

Err:502

0 ppb

Next Sample

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

(mBq/kg)

(ppb or ppm)

Results:

210Pb:

7Be:

54Mn

228Ac:

210Po:

(mBq/kg)

(ppb or ppm)