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

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

U. of Calgary Measurements:

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Run Numbers

Counting Dates
(if applicable)

UCalgary G01

423.4 g

3.916

250324

Mar 24, 2025

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

RR1 Breathing Well Hole 3, 0-28

Mar 28, 2025

(mBq/kg)

21530.00

405.70

31030.00

1655.00

1124.00

30.26

18060.00

442.60

374120.00

19140.00

3805.20

195.50

<30.99

Sebastian Champagne

(ppb or ppm)

1.74 ppm

0.03 ppm

2.51 ppm

0.13 ppm

1.98 ppm

0.05 ppm

4.44 ppm

0.11 ppm

12084.08 ppm

618.22 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

134Cs:

(mBq/kg)

45258.00

2555.00

<245.60

166.97

24.68

20100.00

487.40

1043.00

61.70

(ppb or ppm)

3.67 ppm

0.21 ppm

4.94 ppm

0.12 ppm

UCalgary G02

405.6 g

2.923

250328

Mar 28, 2025

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

RR1 Breathing Well Hole 3, 28-48

Mar 31, 2025

(mBq/kg)

28190.00

532.70

35920.00

2046.00

1416.00

68.70

22770.00

561.40

461880.00

23630.00

3667.10

191.30

<41.32

Sebastian Champagne

(ppb or ppm)

2.28 ppm

0.04 ppm

2.91 ppm

0.17 ppm

2.49 ppm

0.12 ppm

5.6 ppm

0.14 ppm

14918.72 ppm

763.25 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

134Cs:

(mBq/kg)

31095.00

1976.00

<274.30

133.96

31.27

25730.00

625.50

1335.30

79.64

(ppb or ppm)

2.52 ppm

0.16 ppm

6.33 ppm

0.15 ppm

UCalgary G03

413.4 g

2.229

250331

Mar 31, 2025

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

RR1 Breathing Well Hole 3, 48-67

Apr 2, 2025

(mBq/kg)

28640.00

549.70

38760.00

2167.00

1478.00

41.76

23470.00

582.20

468120.00

23960.00

25832.00

141.10

<53.16

Sebastian Champagne

(ppb or ppm)

2.32 ppm

0.04 ppm

3.14 ppm

0.18 ppm

2.6 ppm

0.07 ppm

5.77 ppm

0.14 ppm

15120.28 ppm

773.91 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

134Cs:

(mBq/kg)

31017.00

2058.00

<309.10

218.49

36.92

25950.00

643.20

1282.20

81.25

(ppb or ppm)

2.51 ppm

0.17 ppm

6.38 ppm

0.16 ppm

UCalgary G04

405.3 g

4.804

250402

Apr 2, 2025

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

RR1 Breathing Well Hole 3, 67-89

Apr 7, 2025

(mBq/kg)

27010.00

500.50

33260.00

1764.00

1363.00

34.73

21700.00

526.70

446110.00

22810.00

2659.30

138.50

22.14

17.64

Sebastian Champagne

(ppb or ppm)

2.19 ppm

0.04 ppm

2.69 ppm

0.14 ppm

2.4 ppm

0.06 ppm

5.34 ppm

0.13 ppm

14409.35 ppm

736.76 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

134Cs:

(mBq/kg)

33618.00

1975.00

69.29

190.30

197.79

25.40

24310.00

577.70

1260.90

71.22

(ppb or ppm)

2.72 ppm

0.16 ppm

5.98 ppm

0.14 ppm

UCalgary G05

408.6 g

3.909

250407

Apr 7, 2025

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

RR1 40Ft, 0-27

Apr 11, 2025

(mBq/kg)

28770.00

536.30

36670.00

1975.00

1395.00

36.73

23650.00

575.10

466650.00

23860.00

3859.70

199.00

<34.81

Sebastian Champagne

(ppb or ppm)

2.33 ppm

0.04 ppm

2.97 ppm

0.16 ppm

2.46 ppm

0.06 ppm

5.82 ppm

0.14 ppm

15072.8 ppm

770.68 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

134Cs:

(mBq/kg)

24508.00

1608.00

<281.80

177.73

28.08

26050.00

624.70

1273.70

74.13

(ppb or ppm)

1.99 ppm

0.13 ppm

6.41 ppm

0.15 ppm

UCalgary G06

413.3 g

2.916

250411

Apr 11, 2025

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

RR1 40Ft, 27-50

Apr 14, 2025

(mBq/kg)

30610.00

575.60

39750.00

2179.00

1490.00

39.90

24980.00

611.00

501270.00

25640.00

1822.86

107.59

5.28

23.87

Sebastian Champagne

(ppb or ppm)

2.48 ppm

0.05 ppm

3.22 ppm

0.18 ppm

2.62 ppm

0.07 ppm

6.15 ppm

0.15 ppm

16191.02 ppm

828.17 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

134Cs:

(mBq/kg)

23029.00

1635.00

<299.70

177.49

32.60

27450.00

665.40

1421.00

83.91

(ppb or ppm)

1.87 ppm

0.13 ppm

6.75 ppm

0.16 ppm

UCalgary G07

406.8 g

2.131

250414

Apr 14, 2025

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

RR1 40Ft, 50-81

Apr 16, 2025

(mBq/kg)

17750.00

332.10

22748.00

1206.00

867.80

23.95

15870.00

385.50

303920.00

15550.00

199.21

40.73

<24.67

Sebastian Champagne

(ppb or ppm)

1.44 ppm

0.03 ppm

1.84 ppm

0.1 ppm

1.53 ppm

0.04 ppm

3.9 ppm

0.09 ppm

9816.62 ppm

502.27 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

134Cs:

(mBq/kg)

7841.70

619.70

303.34

171.70

100.44

21.91

16610.00

408.20

802.97

50.39

(ppb or ppm)

0.64 ppm

0.05 ppm

4.09 ppm

0.1 ppm

UCalgary G08

414.4 g

6.825

250416

Apr 16, 2025

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

RR1 40Ft, 81-117

Apr 23, 2025

(mBq/kg)

29790.00

545.20

37700.00

1894.00

1476.00

35.88

24700.00

593.80

519700.00

26550.00

185.56

16.42

<25.49

Sebastian Champagne

(ppb or ppm)

2.41 ppm

0.04 ppm

3.05 ppm

0.15 ppm

2.6 ppm

0.06 ppm

6.08 ppm

0.15 ppm

16786.31 ppm

857.57 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

134Cs:

(mBq/kg)

24445.00

1487.00

<264.90

180.73

22.45

26600.00

623.70

1356.40

73.87

(ppb or ppm)

1.98 ppm

0.12 ppm

6.54 ppm

0.15 ppm

UCalgary G09

403.9 g

2.007

250428
25042801

Apr 28, 2025

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

RR1 BW Hole 1 0-29

Apr 30, 2025

(mBq/kg)

25650.00

498.50

35450.00

2046.00

1298.00

38.54

20610.00

517.40

411960.00

21100.00

3880.40

204.90

<28.59

Sebastian Champagne

(ppb or ppm)

2.08 ppm

0.04 ppm

2.87 ppm

0.17 ppm

2.28 ppm

0.07 ppm

5.07 ppm

0.13 ppm

13306.31 ppm

681.53 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

134Cs:

(mBq/kg)

38218.00

2401.00

<402.40

94.05

34.67

22200.00

565.10

1139.60

75.51

(ppb or ppm)

3.1 ppm

0.19 ppm

5.46 ppm

0.14 ppm

UCalgary G10

404.7 g

4.867

250423

Apr 23, 2025

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

RR1 BW hole 2 0-24

Apr 28, 2025

(mBq/kg)

23700.00

441.30

30230.00

1642.00

1171.00

30.60

19180.00

467.50

402670.00

20590.00

3128.50

161.30

<20.82

Sebastian Champagne

(ppb or ppm)

1.92 ppm

0.04 ppm

2.45 ppm

0.13 ppm

2.06 ppm

0.05 ppm

4.72 ppm

0.12 ppm

13006.24 ppm

665.06 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

134Cs:

(mBq/kg)

36919.00

2123.00

484.76

182.80

128.56

22.83

21060.00

505.80

1101.50

63.19

(ppb or ppm)

2.99 ppm

0.17 ppm

5.18 ppm

0.12 ppm

UCalgary G11

410.4 g

1.875

250530

Apr 30, 2025

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

RR1 BW Hole 2 24-51

May 2, 2025

(mBq/kg)

26590.00

516.80

35960.00

2061.00

1336.00

39.43

23460.00

580.90

430100.00

22040.00

3001.90

162.40

<35.88

Sebastian Champagne

(ppb or ppm)

2.15 ppm

0.04 ppm

2.91 ppm

0.17 ppm

2.35 ppm

0.07 ppm

5.77 ppm

0.14 ppm

13892.23 ppm

711.89 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

134Cs:

(mBq/kg)

30185.00

2065.00

<336.70

161.82

37.41

24010.00

608.20

1154.20

77.54

(ppb or ppm)

2.44 ppm

0.17 ppm

5.91 ppm

0.15 ppm

UCalgary G12

393.5 g

3.929

250502

May 2, 2025

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Soil Sample DG5-1

May 6, 2025

(mBq/kg)

97330.00

1753.00

139300.00

6153.00

5062.00

115.70

57820.00

1366.00

411070.00

21030.00

<9.83

<33.93

Sebastian Champagne

(ppb or ppm)

7.88 ppm

0.14 ppm

11.28 ppm

0.5 ppm

8.91 ppm

0.2 ppm

14.22 ppm

0.34 ppm

13277.56 ppm

679.27 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

134Cs:

(mBq/kg)

102860.00

5621.00

<218.00

355.42

43.12

58730.00

1371.00

3074.00

163.60

(ppb or ppm)

8.33 ppm

0.46 ppm

14.45 ppm

0.34 ppm

UCalgary G13

407.9 g

2.950

250506

May 6, 2025

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Soil Sample DG10

May 9, 2025

(mBq/kg)

80850.00

1466.00

11730.00

5381.00

4203.00

99.22

57680.00

1365.00

386950.00

19600.00

<11.52

32.90

27.99

Sebastian Champagne

(ppb or ppm)

6.55 ppm

0.12 ppm

0.95 ppm

0.44 ppm

7.4 ppm

0.17 ppm

14.19 ppm

0.34 ppm

12498.49 ppm

633.08 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

134Cs:

(mBq/kg)

84568.00

4724.00

<252.80

389.67

47.29

59610.00

1399.00

3130.30

168.70

(ppb or ppm)

6.85 ppm

0.38 ppm

14.66 ppm

0.34 ppm

UCalgary G14

381.0 g

2.881

250509

May 9, 2025

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Soil Sample BG

May 12, 2025

(mBq/kg)

37420.00

698.00

56330.00

2894.00

2046.00

52.49

31650.00

761.70

425130.00

21760.00

<13.46

<28.01

Sebastian Champagne

(ppb or ppm)

3.03 ppm

0.06 ppm

4.56 ppm

0.23 ppm

3.6 ppm

0.09 ppm

7.79 ppm

0.19 ppm

13731.7 ppm

702.85 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

134Cs:

(mBq/kg)

38247.00

2374.00

<279.30

206.82

35.51

33170.00

797.00

1750.10

100.90

(ppb or ppm)

3.1 ppm

0.19 ppm

8.16 ppm

0.2 ppm

UCalgary G15

395.3 g

4.019

250512

May 12, 0025

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Soil Sample DG5-2

May 16, 2025

(mBq/kg)

101500.00

1827.00

137600.00

6123.00

5167.00

119.00

58760.00

1386.00

418150.00

21390.00

<9.95

55.13

26.28

Sebastian Champagne

(ppb or ppm)

8.22 ppm

0.15 ppm

11.15 ppm

0.5 ppm

9.09 ppm

0.21 ppm

14.45 ppm

0.34 ppm

13506.25 ppm

690.9 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

134Cs:

(mBq/kg)

109890.00

5976.00

<154.40

378.79

44.03

60450.00

1412.00

3075.70

163.90

(ppb or ppm)

8.9 ppm

0.48 ppm

14.87 ppm

0.35 ppm

UCalgary G16

490.5 g

3.006

250523

May 23, 2025

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Soil Sample RR2

May 26, 2025

(mBq/kg)

22430.00

423.90

31530.00

1679.00

1214.00

33.32

18930.00

459.00

344200.00

17610.00

<10.65

<20.92

Sebastian Champagne

(ppb or ppm)

1.82 ppm

0.03 ppm

2.55 ppm

0.14 ppm

2.14 ppm

0.06 ppm

4.66 ppm

0.11 ppm

11117.66 ppm

568.8 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

134Cs:

(mBq/kg)

18586.00

1297.00

390.76

196.40

125.34

24.92

19430.00

476.10

1025.30

61.78

(ppb or ppm)

1.51 ppm

0.11 ppm

4.78 ppm

0.12 ppm

UCalgary G17

295.8 g

2.902

250526

May 26, 2025

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Soil Sample WA NW 0-20

May 29, 2025

(mBq/kg)

28280.00

544.30

42620.00

2386.00

1616.00

43.86

24110.00

593.60

501330.00

25660.00

4393.50

229.80

<52.13

Sebastian Champagne

(ppb or ppm)

2.29 ppm

0.04 ppm

3.45 ppm

0.19 ppm

2.84 ppm

0.08 ppm

5.93 ppm

0.15 ppm

16192.96 ppm

828.82 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

134Cs:

(mBq/kg)

49323.00

2952.00

<413.90

145.84

36.44

25580.00

633.60

1234.70

79.85

(ppb or ppm)

4 ppm

0.24 ppm

6.29 ppm

0.16 ppm

In Progress and To Be Measured:

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Run Numbers

Counting Dates
(if applicable)

UCalgary G18

450.7 g

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Soil Sample WA NW 20-40

(mBq/kg)

Sebastian Champagne

(ppb or ppm)

0 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

134Cs:

(mBq/kg)

(ppb or ppm)

0 ppm

UCalgary G19

458.9 g

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Soil Sample WA NW 40-50

(mBq/kg)

Sebastian Champagne

(ppb or ppm)

0 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

134Cs:

(mBq/kg)

(ppb or ppm)

0 ppm

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)

(ppb or ppm)