to limit reentry to the southern and eastern islands of the atoll. This survey indicated that radioactive contamination extended north of a line from Bogallua to Piraai, amounting to 2 mr/hr was experienced at Parry on the evening o Secondary fall-out Lagoon water was moderately contaminated in the vicinity of the Bogallua-Teiteiripucchi chain and cleared within two days. Table 4. SUMMARY IN ROENTGENS PER HOUR ow a Talend Heaqhr + y* Eniwetok Parry Japtan 0 0 6 Chinimi o 0 0 Chinieero 0 0 0.05 6.006 0.01 0.01 0.01 0.01 0,12 0,014 0,02 0,02 0,012 0,016 0.01 0.02 0,02 0.02 0.02 Yeirt Bokonsarappu Kirinijan Muzin Engebi 0,17 0.17 0.35 0,42 0.70 0,02 0,02 0,04 0.05 0,08 0.02 0.02 0,04 0,06 0,08 Bogon Bogairikk 0.98 ? 0.12 0.22 0.14 0.80 wae Runit 1 TEyer eee een pene Aniyaanii Aaraanbiru Rojoa Cochiti Ban Idefonso Ruchi : 0.17 0.17 0.10 0,14 60,0 70.0 78.0 0 “o 0.006 7.0 BU 1.0 6.36 2.2 0 0 0.26 0 0 0.28 0 0 0 0 Ribaiont Pokon Igurin 6.0 8.4 0 0 0.80 3.9 Mul 6.8 6 0 Q 6.0 Bogombogo Bogaliua Rigihi Girlinien 0 0.08 0.10 Biijiri Teiteiripucchi 0 0 Piiraad Aomon Eberiru Rujoru Aitau 0 0 0 +2 days 0.44 0 0.36 o 0 0 *Period preceded by beavy rainfall. 4.6.9 Laboratory Data Summary rep ayerynern The bulk of the samples analyzed by the radiation-analysis section of TU-7 were water samples. The specific activities in microcuries per milliliter of approximately 675 lagoon- and drinking-water samples were determined during the course of the operation. Lagoon sampling was carried on to ensure that ships’ anchorages were not excessively contaminated. As the operation progressed it became evident that excessively contaminated water could be observed Ghia tetitres« 71