Scientific Investigations Report 2006–5236
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006–5236
Table 6. Concentrations of tritium, strontium-90, cesium-137, selected transuranic elements, and dissolved chloride in perched ground water from well USGS 92, Radioactive Waste Management Complex, Idaho National Laboratory, Idaho, 1999–2001.
[Well No.: Location of well is shown in figure 2. Analyses completed by the Radiological and Environmental Sciences Laboratory and the National Water Quality Laboratory. Analyses for radionuclides, 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: pCi/mL, picocurie per milliliter; pCi/L, picocurie per liter; mg/L, milligram per liter. NR, analysis not requested; SL, sample lost prior to analysis; Insufficient sample, inadequate amount of sample collected for requested analysis; USGS, U.S. Geological Survey. Symbol: ±, plus or minus]
| Well No. | Date | Tritium (pCi/mL) | Strontium-90 (pCi/L) | Cesium-137 (pCi/L) | Plutonium-238 (pCi/L) | Plutonium-239, 240 (undivided) (pCi/L) | Americium-241 (pCi/L) | Chloride, dissolved (mg/L) |
|---|---|---|---|---|---|---|---|---|
| USGS 92 | 03-30-99 | 0.26±0.13 | 2.6±1 | -15±20 | 0.005±0.005 | 0.005±0.005 | 0.03±0.02 | 81.2 |
| 10-21-99 | 0.33±0.15 | 1.4±0.9 | -12±24 | -0.015±0.011 | -0.008±0.013 | 0.02±0.02 | 79.7 | |
| 04-17-00 | 0.3±0.1 | 0.2±0.8 | 30±30 | -0.007±0.007 | -0.004±0.006 | -0.004±0.012 | 80.2 | |
| 10-18-00 | 0.13±0.13 | −0.8±1.1 | 0±40 | Insufficient sample |
Insufficient sample |
Insufficient sample |
NR | |
| 04-17-01 | 0.42±0.15 | 0.6±0.7 | 0±30 | −0.003±0.003 | 0.003±0.008 | 0.007±0.012 | 78.0 | |
| 10-11-01 | 0.45±0.14 | NR | −17±22 | SL | SL | SL | NR |
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