Scientific Investigations Report 2008–5089
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2008–5089
Table 12. Concentrations of tritium, strontium-90, and cesium-137 in perched ground water from selected wells, Idaho Nuclear Technology and Engineering Center, Idaho National Laboratory, Idaho, 2002–05.
[Well No.: Locations of wells are shown in figure 21. Analyses completed by the Radiological and Environmental Sciences Laboratory. Analytical uncertainties are reported as 1 times the sample standard deviation. Concentrations equal to or greater than 3 times the sample standard deviation are considered to be greater than the reporting level and are bold. Abbreviations: DP, well completed in deep perched water; SP, well completed in shallow perched water. NR, analysis not requested; NS, not sampled due to lack of water or because water level was below pump intake; NSEQ, not sampled, equipment problems; SL, sample lost prior to analysis; pCi/mL, picocurie per milliliter; pCi/L, picocurie per liter. Symbol: ±, plus or minus]
Well No. | Date Sampled |
Tritium (pCi/mL) |
Strontium-90 (pCi/L) |
Cesium-137 (pCi/L) |
---|---|---|---|---|
PW 1 (DP) | 05-20-2002 | 0.26±0.13 | 1.2±0.7 | -14.1±21.6 |
10-08-2002 | NS | NS | NS | |
04-02-2003 | NS | NS | NS | |
10-08-2003 | NS | NS | NS | |
04-14-2004 | NS | NS | NS | |
04-07-2005 | NS | NS | NS | |
PW 2 (DP) | 04-15-2002 | 0.42±0.14 | 2.6±0.7 | 10±20 |
10-08-2002 | 1±0.2 | 3.3±0.7 | NR | |
04-02-2003 | NS | NS | NS | |
PW 3 (DP) | 04-15-2002 | 0.45±0.14 | 3.4±0.7 | -40±40 |
10-08-2002 | NS | NS | NS | |
04-02-2003 | NS | NS | NS | |
04-14-2004 | NS | NS | NS | |
PW 4 (DP) | 05-20-2002 | 0.12±0.13 | 0.6±0.7 | 12.5±26.9 |
10-08-2002 | 0.1±0.13 | 1.8±0.6 | NR | |
04-14-2003 | 1.1±0.2 | 2.1±0.7 | 13.4±31.2 | |
10-08-2003 | 0.87±0.14 | 3.7±0.8 | NR | |
10-18-2004 | 1.8±0.2 | 9.7±1 | 10±20 | |
10-13-2005 | 1.4±0.16 | 11.4±1 | 10±30 | |
PW 5 (DP) | 05-20-2002 | 0.07±0.12 | 0.2±0.7 | -20±30 |
10-09-2002 | NS | NS | NS | |
10-07-2003 | NS | NS | NS | |
04-13-2004 | NS | NS | NS | |
SWP 8 (SP) | 07-15-2002 | 0.16±0.14 | 0.7±0.7 | 13.4±27.4 |
07-17-2003 | NS | NS | NS | |
USGS 50 (DP) | 04-09-2002 | 29.3±0.7 | 150±3 | -20±20 |
10-16-2002 | 28.5±0.7 | SL | 0±30 | |
04-23-2003 | 28.6±0.7 | 110±3 | 10±20 | |
11-17-2003 | 25.7±0.5 | 105±2 | 20±20 | |
11-05-2004 | 22±0.7 | 145±3 | 20±30 | |
10-26-2005 | NSEQ | NSEQ | NSEQ |