—p 258 RADIOLOGICAL CLEANUP OF ENEWETAK ATOLL BOKEN (IRWIN) ISLAND CLEANUP Boken contains 29 acres and was used for measurements of temperature, humidity, and changes in water level during Operation Hardtack I. Vegetation was dense. Debris included derelict marine craft and miscellaneous metal debris. There were an estimated161 cubic yards of noncontaminated debris, and five Master Index items wereidentified. The planned use for Boken wasfood gathering. !06 Debris cleanup began on 19 July 1978 and was completed on | September 1978. The volume of debris actually removed was 270 cubic yards. 107 RIBEWON (JAMES) ISLAND CLEANUP Ribewon hasan area of 19 acres and was used for wave, temperature, humidity, and water level recordings during Operation Hardtack I. The Wahoo event of Operation Hardtack I was detonated 500 feet underwater, 1.4 miles south of Ribewon. Vegetation was dense. Debris included the remains of three marine craft and a large pile of debris. There were estimated to be 156 cubic yards of debris, none of it contaminated, including four Master Index items. The planned use for Ribewon was food gathering. !08 Debris cleanup began on 26 July 1978 and was completed on 25 August 1978. A total of 254 cubic yards of debris was removed. !09 MUT(HENRY) ISLAND CLEANUP Mut has an area of 40 acres and was used as a rocket station for air blast measurementsas well as a camera station. Otherscientific instrumentation was located on or near the island. Vegetation was dense. Debris included derelict marine craft plus a moderate amount of miscellaneous wood, metal, and concrete rubble. It was estimated that 199 cubic yards of debris, all noncontaminated, required removal. Sixteen Master Index items were identified. The planned use for Mut was food gathering. !!0 Debris cleanup began on 8 August 1978 and was completed on 8 September 1978. Two hundred and fifteen cubic yards of debris were removed. !!1