GROSS ACTIVITY 21 Table 20—Results of Analyses Performed at HASL , C-DaTE*| Torat TotaL Activity Actrviry d/m/gram Sampiine Location 734 Eniwetak......-..-.--.--2-----728 |... dO... .n 847 Gegen_...-.--_-g42 |... do. 708 Utirik.. 22... 762 do. | 676 do econ eee ences cece eccecnetenee eens ners wees] eee nee ae ---} 4-21-66 +21-56 414-56 4-21-56 4-21-56 21-36 4-14-56 4-21-56 4-14-56 4-21-56 +14-56 4-21-56 414-86 6545 sau 200-40 S53 S65 S61 3000 +03 120468 604002470 S73 1600202 S87 6204.79 sr d/m/gram Cg 17 @/m/gram S0. 42 1. Bk. 42 200.8 S0. 47 1.20.71 S0. 58 B01. 4 1.040.498 164042. 4 3.40.72 4941.3 SO. 55 2841.0 |%8r®| % Cg ir |. 6.9 |W. «| 1835460 |.. |... 27 0.84 2.4 BL - 2.2 je. eee 45 *C-Date: Date of counting. See table 34 for estimates of available calcium and of Sunshine Units. D. Water Table 21 suggests a relatively high ratio of activity associated with thefiltrate. However, it is probable that much of the insoluble material had settled out, therefore, the values do not represent all of the radioactive material that fell on these surfaces. In fact, data from other fallouts suggest a value of about 10-20% solubility. Tables 18,‘ 21,? and 22 ? show additional data on gross activity found in water sources. Table 23 gives the analyses by HASL.* Table 21—Radioactivity of Water Samples, July 1954—October 1955 (AFL) (Values expressed in d/m/liter2-0.95 counting error) Lagoon WATER Date anv Istanp Untreated Treated IstaNnp WaTER UNFILTERED FILTERED Filtrate Residue Rongelap Atol: 7/16/54, Kabelle.... 2-22-22 eee ene eee nn ec ence ete nee 12/18/54, Rongelap..--. - 1/26-30/55, Eniaetok. . Rongelap..-_. we cence eee eeeeeeere Rongelap_ ....- 2-2-2 -e een eee ne eee eee eee eee e ee eee e ee Aliinginae Atoll: 10/23/55, Enibuk....---. 0-22. ----- eee nee nee eee en ence eee ee 16001400 804136 14004:91 $104190 4300200 8504140 WANA 12004:34*° reb19°"* 8202140 B2056H “From cistern near schoolhouse; #from weil back of schoolhouse; **ground water; #standing water from can, drum, etc.; *** from cistern with collapsed roof. Date of analysis: November 18-20, 1055. ee BOIL

Select target paragraph3