TABLE 18 Radioactivity of Water Samples, July 1954-October 1955 (ar.) Values expressed in d/n/liter to .95 counting error Lagoon Water Date and Tsland Rongelap 7/16/54 Untreated Treated Unfiltered 380053200 12/18/54 Rongelap 1/26-30/55 1/26-70/ 3000t 190* Kabelle 48000t3200** 6800*3000 Lomuilal 25000t2200## 5600¢3000 Rongelap 56003000 10/21 ~22/55 4200£1800 10/2172 / 3500£1600 410¢150 Rongelap 190041 600 60#120 Labaredj 600#1500 450160 540120 : 1600#1400 80130 . 310¢190 5300#1 40 4300t200 1400% 91 820t140 1300* 86 All inginge Atoll 1800t180# 17000t2200## 3300%2700 Labaredj Enibuk Filtered Filtrate Residue Atoll Kabelile 1 Isiand Water 850#140 75¢17# 1200#34* 7541 9*** B20ts6Ht ¥from cistern near schoolhouse; # fron W$i2 back of schoolhouse; ** ground water; ## standing water from can, drum, etc.; from cistern with collapsed roof, Date of analysis: November 18-20, 1955.°