Type Date Location Depth Pb206_Pb204 Pb206_Pb204_stdev Pb206_Pb207 Pb206_Pb207_stdev Pb208_Pb207 Pb208_Pb207_stdev lake water 2013-03-29 Mid-Lake 0 19.28 0.18 1.205 0.007 2.46 0.011 lake water 2013-03-29 Mid-Lake 50 19.13 0.09 1.218 0.005 2.464 0.012 lake water 2013-03-29 Mid-Lake 100 18.97 0.14 1.202 0.006 2.454 0.009 lake water 2013-03-29 Mid-Lake 150 19.31 0.18 1.2 0.006 2.454 0.015 lake water 2013-03-29 Mid-Lake 250 18.92 0.2 1.197 0.006 2.453 0.015 lake water 2013-03-29 Mid-Lake 300 19.32 0.25 1.203 0.006 2.456 0.014 lake water 2013-03-29 Mid-Lake 350 19.05 0.15 1.199 0.006 2.455 0.014 lake water 2013-03-29 Mid-Lake 400 18.98 0.24 1.192 0.006 2.453 0.014 lake water 2013-03-29 Mid-Lake 450 19.04 0.08 1.197 0.005 2.448 0.011 lake water 2013-12-23 Mid-Lake 0 18.78 0.13 1.188 0.006 2.452 0.008 lake water 2013-12-23 Mid-Lake 50 19.07 0.16 1.198 0.007 2.452 0.012 lake water 2013-12-23 Mid-Lake 100 18.74 0.13 1.194 0.006 2.452 0.01 lake water 2013-12-23 Mid-Lake 200 18.91 0.15 1.191 0.007 2.448 0.015 lake water 2013-12-23 Mid-Lake 300 18.96 0.17 1.197 0.006 2.447 0.011 lake water 2013-12-23 Mid-Lake 450 19.05 0.16 1.199 0.006 2.457 0.013 lake water 2014-05-07 Mid-Lake 0 18.97 0.13 1.174 0.005 2.431 0.011 lake water 2014-05-07 Mid-Lake 50 19.46 0.13 1.209 0.008 2.459 0.009 lake water 2014-05-07 Mid-Lake 100 18.97 0.17 1.202 0.005 2.459 0.011 lake water 2014-05-07 Mid-Lake 200 18.99 0.09 1.206 0.006 2.452 0.011 lake water 2014-05-07 Mid-Lake 300 19.48 0.24 1.23 0.006 2.473 0.014 lake water 2014-05-07 Mid-Lake 450 19.36 0.17 1.213 0.006 2.459 0.014 lake water 2015-06-15 Mid-Lake 0 18.92 0.12 1.201 0.006 2.455 0.011 lake water 2015-06-15 Mid-Lake 50 18.8 0.14 1.19 0.006 2.443 0.01 lake water 2015-06-15 Mid-Lake 100 18.68 0.13 1.187 0.007 2.433 0.011 lake water 2015-06-15 Mid-Lake 150 18.79 0.15 1.19 0.006 2.445 0.013 lake water 2015-06-15 Mid-Lake 200 18.86 0.18 1.203 0.009 2.449 0.011 lake water 2015-06-15 Mid-Lake 250 18.59 0.17 1.185 0.005 2.43 0.016 lake water 2015-06-15 Mid-Lake 300 18.64 0.2 1.184 0.006 2.439 0.01 lake water 2015-06-15 Mid-Lake 350 18.28 0.17 1.174 0.006 2.429 0.01 lake water 2015-06-15 Mid-Lake 400 18.73 0.14 1.193 0.006 2.449 0.014 lake water 2015-09-23 Mid-Lake 0 18.93 0.16 1.188 0.008 2.448 0.012 lake water 2015-09-23 Mid-Lake 50 18.87 0.15 1.191 0.006 2.445 0.011 lake water 2015-09-23 Mid-Lake 100 18.92 0.2 1.187 0.006 2.447 0.011 lake water 2015-09-23 Mid-Lake 150 19.36 0.15 1.184 0.006 2.44 0.01 lake water 2015-09-23 Mid-Lake 200 18.9 0.16 1.191 0.006 2.451 0.013 lake water 2015-09-23 Mid-Lake 250 19.68 0.15 1.201 0.007 2.457 0.01 lake water 2015-09-23 Mid-Lake 300 18.78 0.19 1.189 0.007 2.451 0.012 lake water 2015-09-23 Mid-Lake 350 18.9 0.18 1.194 0.005 2.452 0.018 lake water 2015-09-23 Mid-Lake 400 18.98 0.21 1.199 0.006 2.461 0.01 lake water 2015-09-23 Mid-Lake 450 18.99 0.2 1.208 0.008 2.463 0.013 lake water 2015-12-08 Mid-Lake 0 19.68 0.26 1.185 0.006 2.453 0.008 lake water 2015-12-08 Mid-Lake 50 18.91 0.19 1.204 0.007 2.461 0.014 lake water 2015-12-08 Mid-Lake 100 18.73 0.94 1.205 0.024 2.453 0.076 lake water 2015-12-08 Mid-Lake 150 18.81 0.14 1.195 0.006 2.445 0.009 lake water 2015-12-08 Mid-Lake 200 18.85 0.13 1.204 0.005 2.454 0.009 lake water 2015-12-08 Mid-Lake 250 20.87 0.38 1.192 0.017 2.465 0.044 lake water 2015-12-08 Mid-Lake 300 19.01 0.15 1.196 0.006 2.45 0.007 lake water 2015-12-08 Mid-Lake 350 18.76 0.17 1.179 0.005 2.44 0.013 lake water 2015-12-08 Mid-Lake 400 19.01 0.17 1.188 0.005 2.451 0.011 lake water 2015-12-08 Mid-Lake 450 18.86 0.18 1.186 0.006 2.448 0.013 lake water 2016-07-22 Mid-Lake 0 18.75 0.09 1.193 0.005 2.454 0.009 lake water 2016-07-22 Mid-Lake 50 18.97 0.13 1.203 0.004 2.451 0.013 lake water 2016-07-22 Mid-Lake 100 20.42 0.14 1.205 0.003 2.459 0.01 lake water 2016-07-22 Mid-Lake 150 19.41 0.19 1.213 0.006 2.46 0.011 lake water 2016-07-22 Mid-Lake 200 19.83 0.11 1.199 0.007 2.452 0.011 lake water 2016-07-22 Mid-Lake 250 19.21 0.17 1.206 0.005 2.458 0.011 lake water 2016-07-22 Mid-Lake 300 19.03 0.12 1.2 0.004 2.446 0.013 lake water 2016-07-22 Mid-Lake 350 20 0.16 1.193 0.004 2.453 0.009 lake water 2016-07-22 Mid-Lake 400 19.87 0.14 1.197 0.006 2.452 0.011 lake water 2016-07-22 Mid-Lake 450 20.79 0.18 1.202 0.005 2.459 0.01 TSP 2006-01-03 Tahoe City Hatchery nd 18.02 0.1 1.157 0.003 2.42 0.006 TSP 2006-03-01 Tahoe City Hatchery nd 18.04 0.07 1.158 0.003 2.428 0.005 TSP 2006-05-08 Tahoe City Hatchery nd 17.98 0.07 1.157 0.003 2.434 0.005 TSP 2006-06-12 Tahoe City Hatchery nd 18.07 0.06 1.161 0.002 2.42 0.005 TSP 2006-09-19 Tahoe City Hatchery nd 18.21 0.07 1.171 0.003 2.435 0.008 TSP 2006-11-29 Tahoe City Hatchery nd 18.17 0.09 1.165 0.003 2.431 0.009 TSP 2006-01-03 Tahoe City Hatchery nd 18.17 0.09 1.166 0.003 2.434 0.006 TSP 2007-02-12 Tahoe City Hatchery nd 18.26 0.07 1.169 0.003 2.433 0.005 TSP 2007-04-10 Tahoe City Hatchery nd 18.06 0.07 1.161 0.005 2.429 0.011 TSP 2007-06-13 Tahoe City Hatchery nd 17.84 0.08 1.149 0.003 2.414 0.005 TSP 2007-08-15 Tahoe City Hatchery nd 18.42 0.66 1.168 0.015 2.438 0.025 TSP 2007-10-11 Tahoe City Hatchery nd 18.08 0.08 1.162 0.004 2.429 0.008 TSP 2007-12-04 Tahoe City Hatchery nd 18.19 0.07 1.166 0.003 2.434 0.006 TSP 2008-02-20 Tahoe City Hatchery nd 18.08 0.09 1.159 0.003 2.425 0.007 TSP 2008-04-17 Tahoe City Hatchery nd 18 0.08 1.149 0.003 2.418 0.005 TSP 2008-06-18 Tahoe City Hatchery nd 18.06 0.07 1.16 0.002 2.424 0.008 TSP 2008-09-04 Tahoe City Hatchery nd 18.13 0.09 1.164 0.003 2.425 0.007 TSP 2008-11-03 Tahoe City Hatchery nd 18.2 0.09 1.167 0.004 2.428 0.007 TSP 2008-12-22 Tahoe City Hatchery nd 17.99 0.06 1.155 0.003 2.424 0.009 TSP 2008-02-16 Tahoe City Hatchery nd 18.04 0.07 1.157 0.005 2.419 0.008 TSP 2009-04-14 Tahoe City Hatchery nd 18.05 0.06 1.16 0.003 2.427 0.008 TSP 2009-06-01 Tahoe City Hatchery nd 18.12 0.09 1.166 0.004 2.434 0.008 TSP 2009-07-27 Tahoe City Hatchery nd 18.16 0.1 1.166 0.005 2.427 0.011 TSP 2009-09-28 Tahoe City Hatchery nd 18.22 0.1 1.171 0.004 2.435 0.006 TSP 2009-11-23 Tahoe City Hatchery nd 18.5 0.08 1.18 0.004 2.441 0.006 river water 2016-07-22 Third Creek nd 19.11 0.1 1.219 0.004 2.466 0.008 river water 2016-07-22 Trout Creek nd 19.39 0.14 1.24 0.007 2.502 0.011 river water 2016-07-22 Truckee Creek nd 18.67 0.11 1.196 0.006 2.462 0.013 river water 2016-07-22 Ward Creek nd 18.81 0.1 1.2 0.004 2.458 0.01 river water 2016-07-22 Incline Creek nd 19.07 0.11 1.219 0.006 2.477 0.008 river water 2016-07-22 Blackwood Creek nd 18.74 0.29 1.206 0.013 2.46 0.018 river water 2016-07-22 General Creek nd 19.24 0.1 1.227 0.004 2.49 0.008 groundwater 2013-08-13 Fire station well_1 nd 18.62 0.09 1.189 0.006 2.446 0.008 groundwater 2013-08-13 Fire station well_2 nd 18.72 0.15 1.194 0.007 2.456 0.007 groundwater 2013-08-13 Hatchery well_1 nd 18.92 0.16 1.206 0.005 2.459 0.012 groundwater 2013-08-13 Hatchery well_2 nd 19.32 0.32 1.218 0.01 2.474 0.014 groundwater 2013-08-13 Hatchery well_3 nd 18.77 0.17 1.196 0.004 2.457 0.014