USGS Identifier State Well Number Dates Times Hydrogen 2 to Hydrogen 1 ratio (per mil) Oxygen 18 to Oxygen 16 Ratio (per mil) Tritium in Water (picocuries/L) Tritium 2-Sigma Precision picocuries/L Radon 222 (picocuries/L) Radon 222 2-Sigma Precision picocuries/L 383350121254301 8N/5E-9H1M 5/13/96 1300 -58.2 -8.35 13 1 940 29 383352121254002 8N/5E-9H3M 5/13/96 1510 -74.7 -10.4 67 4 260 19 383801121333801 9N/4E-17J2M 5/20/96 1230 -74.2 -10.37 9 1 230 19 385914121215801 13N/5E-12Q2M 5/21/96 1140 -52.9 -7.5 <1.0 1 380 21 390301121391001 14N/3E-20H3M 5/22/96 1030 -60.4 -8.36 30 2 640 25 390342121415501 14N/2E-13L2M 5/22/96 1500 -72.5 -10.11 41 3 330 20 381923121255001 6N/5E-33Q2M 5/23/96 1050 -62.9 -8.65 4 1 630 25 390333121250701 14N/5E-16Q1M 6/3/96 1050 -50.9 -7.28 22 2 480 23 385432121213001 12N/5E-12A1M 6/3/96 1420 -53.6 -7.43 <1.0 1 310 19 385546121312801 13N/4E-33J1M 6/4/96 1010 -53.8 -6.93 31 2 530 23 385718121290401 13N/4E-24N1M 6/4/96 1340 -50.5 -6.82 23 2 360 20 384301121195101 10N/6E-16P1M 6/5/96 930 -53.6 -7.48 <1.0 1 810 27 383304121192501 8N/6E-16B2M 6/5/96 1330 -52.6 -7.14 4 1 630 25 385432121451401 12N/2E-9A1M 6/6/96 930 -69.1 -9.6 <1.0 1 360 21 384736121411501 11N/3E-18N2M 6/6/96 1330 -58.5 -8.04 7 1 430 22 392121121393401 17N/3E-5L1M 6/10/96 1110 -78.8 -10.89 18 1 450 22 392209121320301 18N/4E-33L1M 6/10/96 1420 -52.8 -7.8 4 1 290 19 392945121350001 19N/3E-13P1M 6/11/96 930 -62.5 -8.95 16 2 480 23 392636121324501 18N/4E-5M1M 6/11/96 1300 -60.1 -8.31 20 2 560 24 391806121484501 17N/1E-25D1M 6/12/96 1120 -56.6 -7.74 5 1 610 24 391016121411701 15N/2E-1R1M 6/12/96 1510 -72.8 -10.1 28 2 600 24 390954121394302 15N/3E-8F2M 6/13/96 1040 -64.3 -8.65 24 2 -- -- 382855121221601 7N/5E-1R1M 6/26/96 910 -- -- -- 590 25 390756121411901 15N/2E-24J1M 6/26/96 1340 -- -- -- 800 27 390743121273601 15N/5E-30C1M 8/5/96 1030 -- -- -- 310 21 390945121354601 15N/3E-12M1M 8/5/96 1350 -- -- -- 510 23 384330121265601 10N/5E-17H1M 8/6/96 1010 -- -- -- 540 24 383914121124901 9N/7E-9B1M 8/6/96 1410 -- -- -- 530 23 384455121292101 10N/4E-1K1M 8/7/96 1010 -- -- -- 380 22 384949121233501 11N/5E-2M1M 8/7/96 1340 -- -- -- 420 22 385550121352201 13N/3E-36L4M 8/8/96 1110 -- -- -- 600 24