See CEMRC 2000 Report "Radiological and non-radiological constituents in surface water and sediments at selected reservoirs" for descriptions of locations and methods of data collection.
| Nuclide |
Lake, Collection Date and Sampling Depth |
| Brantley Lake |
| May 31, 2000 (0.5 m depth) |
May 31, 2000 (13.7 m depth) |
Activity Concentration
(Bq L-1) |
aSD
(Bq L-1) |
bMDC
(Bq L-1) |
Activity Concentration
(Bq L-1) |
SD
(Bq L-1) |
MDC
(Bq L-1) |
| 241Am |
<MDC |
|
7.08E-05 |
<MDC |
|
6.71E-05 |
| 238Pu |
<MDC |
|
1.63E-04 |
<MDC |
|
1.15E-04 |
| 239Pu |
<MDC |
|
1.15E-04 |
<MDC |
|
1.03E-04 |
| d 228Th |
<MDC |
|
1.94E-04 |
2.56E-04 |
4.24E-05 |
1.22E-04 |
| 230Th |
<MDC |
|
9.79E-05 |
<MDC |
|
8.89E-05 |
| 232Th |
<MDC |
|
5.24E-05 |
<MDC |
|
4.25E-05 |
| 234U |
1.08E-01 |
2.58E-03 |
1.53E-04 |
1.68E-01 |
3.95E-03 |
1.70E-04 |
| 235U |
3.54E-03 |
3.25E-04 |
1.48E-04 |
4.88E-03 |
4.18E-04 |
1.81E-04 |
| 238U |
5.76E-02 |
1.52E-03 |
1.26E-04 |
7.86E-02 |
2.03E-03 |
2.05E-04 |
| |
July 1, 1999 (0.9 m depth) |
July 1, 1999 (13.4 m depth) |
| 241Am |
<MDC |
|
6.15E-05 |
<MDC |
|
5.39E-05 |
| 238Pu |
<MDC |
|
7.08E-05 |
<MDC |
|
5.83E-05 |
| 239Pu |
eNR |
|
4.43E-05 |
<MDC |
|
4.74E-05 |
| d 228Th |
4.58E-04 |
6.43E-05 |
1.42E-04 |
6.39E-04 |
8.45E-05 |
1.73E-04 |
| 230Th |
<MDC |
|
1.06E-04 |
<MDC |
|
1.41E-04 |
| 232Th |
3.62E-05 |
1.61E-05 |
2.37E-05 |
<MDC |
|
1.03E-04 |
| 234U |
1.06E-01 |
2.51E-03 |
8.87E-05 |
1.33E-01 |
2.49E-03 |
9.02E-05 |
| 235U |
2.80E-03 |
2.23E-04 |
8.48E-05 |
4.23E-03 |
2.40E-04 |
7.83E-05 |
| 238U |
5.32E-02 |
1.39E-03 |
7.82E-05 |
6.43E-02 |
1.34E-03 |
1.22E-04 |
| |
October 7, 1998 (0.9 m depth) |
October 7, 1998 (13.7 m depth) |
| 241Am |
<MDC |
|
4.92E-05 |
<MDC |
|
6.57E-05 |
| 238Pu |
<MDC |
|
6.67E-05 |
NR |
|
5.46E-05 |
| 239Pu |
<MDC |
|
3.77E-05 |
NR |
|
4.48E-05 |
| d 228Th |
2.56E-03 |
1.26E-04 |
9.58E-05 |
1.10E-03 |
1.01E-04 |
2.14E-04 |
| 230Th |
<MDC |
|
1.18E-04 |
<MDC |
|
1.25E-04 |
| 232Th |
<MDC |
|
6.23E-05 |
<MDC |
|
7.49E-05 |
| 234U |
7.54E-02 |
1.53E-03 |
5.59E-05 |
6.99E-02 |
1.25E-03 |
8.70E-05 |
| 235U |
1.83E-03 |
1.37E-04 |
7.42E-05 |
1.94E-03 |
1.35E-04 |
1.14E-04 |
| 238U |
3.89E-02 |
8.75E-04 |
8.03E-05 |
3.80E-02 |
7.63E-04 |
7.11E-05 |
| Nuclide |
Lake Carlsbad |
| May 24, 2000 (0.5 m depth) |
May 24, 2000 (2.1 m depth) |
Activity Concentration
(Bq L-1) |
SD
(Bq L-1) |
MDC
(Bq L-1) |
Activity Concentration
(Bq L-1) |
SD
(Bq L-1) |
MDC
(Bq L-1) |
| 241Am |
<MDC |
|
6.81E-05 |
<MDC |
|
7.25E-05 |
| 238Pu |
<MDC |
|
2.39E-04 |
<MDC |
|
1.43E-04 |
| 239Pu |
<MDC |
|
1.68E-04 |
<MDC |
|
1.16E-04 |
| d 228Th |
1.84E-04 |
3.70E-05 |
1.09E-04 |
1.52E-04 |
3.64E-05 |
1.11E-04 |
| 230Th |
<MDC |
|
8.79E-05 |
<MDC |
|
9.25E-05 |
| 232Th |
<MDC |
|
5.25E-05 |
<MDC |
|
6.89E-05 |
| 234U |
1.67E-01 |
3.76E-03 |
1.30E-04 |
1.77E-01 |
4.05E-03 |
1.27E-04 |
| 235U |
4.50E-03 |
3.79E-04 |
1.32E-04 |
4.72E-03 |
3.97E-04 |
1.55E-04 |
| 238U |
7.87E-02 |
1.94E-03 |
1.12E-04 |
8.39E-02 |
2.09E-03 |
9.80E-05 |
| |
June 30, 1999 (0.6 m depth) |
June 30, 1999 (2.5 m depth) |
| 241Am |
<MDC |
|
6.13E-05 |
<MDC |
|
7.16E-05 |
| 238Pu |
<MDC |
|
1.05E-04 |
<MDC |
|
6.50E-05 |
| 239Pu |
NR |
|
4.08E-05 |
<MDC |
|
3.00E-05 |
| d 228Th |
2.66E-04 |
5.00E-05 |
8.78E-05 |
2.99E-04 |
7.72E-05 |
2.08E-04 |
| 230Th |
<MDC |
|
1.15E-04 |
<MDC |
|
1.26E-04 |
| 232Th |
<MDC |
|
5.71E-05 |
<MDC |
|
7.28E-05 |
| 234U |
1.19E-01 |
2.86E-03 |
1.04E-04 |
1.88E-01 |
4.48E-03 |
7.63E-05 |
| 235U |
2.65E-03 |
2.26E-04 |
8.40E-05 |
5.03E-03 |
3.24E-04 |
7.60E-05 |
| 238U |
5.55E-02 |
1.49E-03 |
7.12E-05 |
9.10E-02 |
2.33E-03 |
8.59E-05 |
| |
August 19, 1998 (0.5 m depth) |
August 19, 1998 (2.1 m depth) |
| 241Am |
<MDC |
|
5.60E-05 |
<MDC |
|
6.52E-05 |
| 238Pu |
<MDC |
|
4.72E-05 |
<MDC |
|
6.12E-05 |
| 239Pu |
<MDC |
|
4.24E-05 |
<MDC |
|
3.54E-05 |
| d 228Th |
1.48E-03 |
1.16E-04 |
2.47E-04 |
1.26E-03 |
8.78E-05 |
9.15E-05 |
| 230Th |
<MDC |
|
1.34E-04 |
<MDC |
|
1.10E-04 |
| 232Th |
<MDC |
|
6.11E-05 |
<MDC |
|
5.92E-05 |
| 234U |
1.16E-01 |
2.20E-03 |
1.41E-04 |
1.13E-01 |
2.05E-03 |
8.94E-05 |
| 235U |
2.74E-03 |
1.79E-04 |
9.15E-05 |
2.69E-03 |
1.61E-04 |
8.69E-05 |
| 238U |
5.66E-02 |
1.19E-03 |
1.37E-04 |
5.71E-02 |
1.13E-03 |
6.08E-05 |
| Nuclide |
Red Bluff Reservoir |
| June 6, 2000 (0.5 m depth) |
June 6, 2000 (11.3 m depth) |
Activity Concentration
(Bq L-1) |
SD
(Bq L-1) |
MDC
(Bq L-1) |
Activity Concentration
(Bq L-1) |
SD
(Bq L-1) |
MDC
(Bq L-1) |
| 241Am |
<MDC |
|
6.92E-05 |
<MDC |
|
7.61E-05 |
| 238Pu |
<MDC |
|
1.34E-04 |
<MDC |
|
1.59E-04 |
| 239Pu |
<MDC |
|
1.12E-04 |
<MDC |
|
1.21E-04 |
| d 228Th |
1.98E-04 |
5.36E-05 |
1.81E-04 |
2.49E-04 |
4.20E-05 |
1.15E-04 |
| 230Th |
<MDC |
|
1.00E-04 |
<MDC |
|
9.30E-05 |
| 232Th |
<MDC |
|
8.56E-05 |
<MDC |
|
5.07E-05 |
| 234U |
2.01E-01 |
4.46E-03 |
1.58E-04 |
2.04E-01 |
4.64E-03 |
1.18E-04 |
| 235U |
6.44E-03 |
4.88E-04 |
1.63E-04 |
5.74E-03 |
4.69E-04 |
1.69E-04 |
| 238U |
9.85E-02 |
2.35E-03 |
1.38E-04 |
1.01E-01 |
2.46E-03 |
1.31E-04 |
| |
July 27, 1999 (0.3 m depth) |
July 27, 1999 (13.2 m depth) |
| 241Am |
<MDC |
|
9.15E-05 |
NA |
|
|
| 238Pu |
<MDC |
|
5.03E-05 |
<MDC |
|
7.86E-05 |
| 239Pu |
<MDC |
|
4.96E-05 |
<MDC |
|
6.25E-05 |
| d 228Th |
7.40E-04 |
7.17E-05 |
1.08E-04 |
8.72E-04 |
1.06E-04 |
1.74E-04 |
| 230Th |
<MDC |
|
1.28E-04 |
<MDC |
|
1.57E-04 |
| 232Th |
7.62E-05 |
2.52E-05 |
5.09E-05 |
<MDC |
|
8.82E-05 |
| 234U |
1.42E-01 |
3.04E-03 |
8.73E-05 |
1.67E-01 |
3.17E-03 |
6.02E-05 |
| 235U |
3.25E-03 |
2.51E-04 |
8.04E-05 |
4.71E-03 |
2.75E-04 |
7.15E-05 |
| 238U |
7.09E-02 |
1.68E-03 |
9.60E-05 |
8.52E-02 |
1.77E-03 |
6.65E-05 |
| |
October 13, 1998 (0.9 m depth) |
October 13, 1998 (9.8 m depth) |
| 241Am |
<MDC |
|
5.48E-05 |
<MDC |
|
1.05E-04 |
| 238Pu |
<MDC |
|
1.03E-04 |
<MDC |
|
1.37E-04 |
| 239Pu |
NR |
|
4.39E-05 |
NR |
|
1.06E-04 |
| d 228Th |
1.67E-03 |
1.00E-04 |
1.22E-04 |
3.19E-03 |
2.19E-04 |
3.48E-04 |
| 230Th |
<MDC |
|
1.14E-04 |
<MDC |
|
1.86E-04 |
| 232Th |
<MDC |
|
6.03E-05 |
7.95E-05 |
3.83E-05 |
5.83E-05 |
| 234U |
2.14E-01 |
5.06E-03 |
1.39E-04 |
2.13E-01 |
4.30E-03 |
1.12E-04 |
| 235U |
5.78E-03 |
3.37E-04 |
1.78E-04 |
5.56E-03 |
2.86E-04 |
1.08E-04 |
| 238U |
1.06E-01 |
2.64E-03 |
1.53E-04 |
1.06E-01 |
2.27E-03 |
1.12E-04 |
