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

In Progress and To Be Measured:

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Run Numbers

Counting Dates
(if applicable)

UCalgary G09

403.9 g

4.478

250425

Apr 23, 2025

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

RR1 BW Hole 1 0-29

Apr 28, 2025

(mBq/kg)

23770.00

444.00

30560.00

1672.00

1172.00

31.01

19220.00

469.60

404110.00

20660.00

3149.50

162.90

<20.80

Sebastian Champagne

(ppb or ppm)

1.93 ppm

0.04 ppm

2.48 ppm

0.14 ppm

2.06 ppm

0.05 ppm

4.73 ppm

0.12 ppm

13052.75 ppm

667.32 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

134Cs:

(mBq/kg)

37424.00

2161.00

440.18

190.20

120.87

23.60

21110.00

509.00

1104.40

64.01

(ppb or ppm)

3.03 ppm

0.18 ppm

5.19 ppm

0.13 ppm

UCalgary G10

404.7 g

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

RR1 BW hole 2 0-24

(mBq/kg)

Sebastian Champagne

(ppb or ppm)

0 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

134Cs:

(mBq/kg)

(ppb or ppm)

0 ppm

UCalgary G11

403.9 g

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

RR1 BW Hole 2 24-51

(mBq/kg)

Sebastian Champagne

(ppb or ppm)

0 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

(ppb or ppm)

0 ppm

UCalgary G12

393.5 g

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Soil Sample DG5-1

(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)