# Ra isotopes in groundwater wells. # W. Burnett and B. Mortazavi, PIs # The R denotes duplicate samples. # A, B and corr denote samples that were collected by two Mn-fibers # put in series and the final results corrected for the recovery. # Uncertainties given are +-1 sigma based on counting statistics. # B.D. = below detection. Low yields on some of the shallow wells # were a result of reducing groundwaters attaching the MnO2 fibers. ========================= date_local year yrday_local ------------------------- 24-Apr-12 2012 115 ========================= site lon lat temp sal Ra223 err_Ra223 Ra224 err_Ra224 Ra226 err_Ra226 Ra228 Ra228_err Yield ------------------------- TW2 -87.689 30.261 21.9 0.12 0.83 0.17 7.35 0.33 3.45 0.17 5.28 1.35 nd TW2R -87.689 30.261 21.9 0.12 0.32 0.09 6.41 0.36 2.98 0.17 4.5 1.53 nd TW3 -87.67 30.255 21.1 2.58 6.11 0.69 56.2 1.38 37.8 0.52 26.3 3.01 nd TW3A -87.67 30.255 21.1 2.58 5.45 0.66 53 1.5 31.4 0.82 24.8 3.19 42.9 TW3B -87.67 30.255 21.1 2.58 2.79 0.5 23 1.18 17.9 0.08 14.2 2.54 nd TW3corr -87.67 30.255 21.1 2.58 12.7 1.54 123 3.49 73.1 1.91 57.8 7.44 nd TW4 -87.678 30.256 20.4 8.98 21 1.29 125 1.9 183 1.02 64.8 2.95 nd TW4R -87.678 30.256 20.4 8.98 22.1 1.32 129 2.37 188 1.63 65.5 2.72 nd TW5 -87.725 30.254 22.1 0.15 2.53 0.36 35.7 0.91 17.1 0.21 29.3 3.29 nd TW5A -87.725 30.254 22.1 0.15 2.74 0.39 30.7 0.91 19.5 0.08 18.6 2.65 85.7 TW5B -87.725 30.254 22.1 0.15 1.05 0.22 B.D. B.D. 2.78 0.06 5.35 2.46 nd TW5corr -87.725 30.254 22.1 0.15 3.2 0.46 35.8 1.06 22.7 0.09 21.7 3.09 nd