# 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 ------------------------- 25-Jul-11 2011 206 ========================= site lon lat temp sal Ra223 err_Ra223 Ra224 err_Ra224 Ra226 err_Ra226 Ra228 Ra228_err Yield ------------------------- TW1 -87.693 30.255 27.7 3.8 2.21 0.24 23.8 1.19 12.2 0.25 25.2 2.52 nd TW1R -87.693 30.255 27.7 3.8 2.73 0.29 25.5 1.25 13.5 0.65 20.2 2.89 nd TW5 -87.725 30.254 27.5 0.2 1.93 0.22 49.4 1.44 22 0.6 39.7 3.44 nd TW5A -87.725 30.254 27 0.2 2.5 0.26 53.4 1.4 33.6 0.46 40.5 3.38 83.9 TW5B -87.725 30.254 27 0.2 0.94 0.16 3.8 0.23 5.42 0.15 5.45 3.13 nd TW5corr -87.725 30.254 27 0.2 2.98 0.31 63.7 1.67 40 0.55 48.3 4.03 nd TW5R -87.725 30.254 27.5 0.2 1.56 0.19 56.8 1.64 30 0.52 35.2 2.73 nd ========================= date_local year yrday_local ------------------------- 7-Sep-11 2011 250 ========================= site lon lat temp sal Ra223 err_Ra223 Ra224 err_Ra224 Ra226 err_Ra226 Ra228 Ra228_err Yield ------------------------- TW1 -87.693 30.255 27.1 4.7 4.04 0.41 29.1 1.3 17.4 0.27 18.8 3.37 nd TW5 -87.725 30.254 27.1 0.3 3.07 0.3 89.2 2.18 25.1 0.2 33.7 3.08 nd ========================= date_local year yrday_local ------------------------- 29-Nov-11 2011 333 ========================= site lon lat temp sal Ra223 err_Ra223 Ra224 err_Ra224 Ra226 err_Ra226 Ra228 Ra228_err Yield ------------------------- TW1A -87.693 30.255 21.7 4.63 6.18 0.52 50.3 1.16 37.4 0.97 47.2 2.85 43 TW1B -87.693 30.255 21.7 4.63 3.71 0.4 27.3 0.99 21.3 0.86 22.6 2.5 nd TW1corr -87.693 30.255 21.7 4.63 14.4 1.21 117 2.7 -87 2.26 110 6.63 nd TW4 -87.678 30.256 21.5 6.78 7.99 0.66 59.4 1.33 93.3 0.84 39.9 2.9 nd TW5 -87.725 30.254 22.4 0.2 1.63 0.24 45.3 0.9 19.2 0.62 24.1 2.71 nd TW7 -87.786 30.245 21.6 0.11 1.1 0.25 10.9 0.56 2.46 0.07 11.2 2.83 nd