# 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 ------------------------- 29-Jun-10 2010 180 ========================= site lon lat temp sal Ra223 err_Ra223 Ra224 err_Ra224 Ra226 err_Ra226 Ra228 Ra228_err Yield ------------------------- DW4 -87.687 30.262 23 0 6.7 0.77 209 4.78 66.5 1.7 166 13.4 nd DW5 -87.686 30.263 22.5 0 18.5 1.4 660 12.7 151 1.04 492 17.7 nd ========================= date_local year yrday_local ------------------------- 28-Jul-10 2010 209 ========================= site lon lat temp sal Ra223 err_Ra223 Ra224 err_Ra224 Ra226 err_Ra226 Ra228 Ra228_err Yield ------------------------- DW3 -87.657 30.275 22.7 0.1 5.52 0.76 304 8.39 113 5.69 333 15.1 nd DW4 -87.687 30.262 24.2 0 4.2 0.74 208 6.79 47.9 1.44 154 13.9 nd DW5 -87.686 30.263 23 0.1 16.7 1.55 558 9.93 157 1.11 438 19.2 nd TW10 -87.774 30.254 25.1 0.1 4.72 0.76 95.9 4.31 41.5 0.37 51.9 10.8 nd