238 RADIOLOGICAL CLEANUP OF ENEWETAK ATOLL while the ocean side was more open. No ground zeroes were placed on Agj and no radioactive burial sites were known. Hazardous debris included a concrete bunker, pieces of pipe, and other metal scrap. There were three Master Index items, including approximately | cubic yard of noncontaminated debris. The planned use for Aej was agriculture, !9 Debris cleanup began on 20 February 1978 and was completed on 2} March 1978. Approximately | cubic yard of noncontaminated debris was removed from the island. Forms were built around the bunker opening andfilled with concrete from a ready-mix truck to seal the bunker.29 The other two Master Index items identified in the survey were removed. Aej was decontrolled on 2 March 1978.2! BILLAE (WILMA) ISLAND CLEANUP Billae consists of 14 acres and was usedforscientific recording stations. It had no ground zeroes, and no radioactive material burial sites were known to exist. Vegetation was moderate to dense. There remained a wind indicator pole, two submarine cable terminals, and miscellaneous wood and metal debris to be removed. There were also several concrete pads which wereto beleft in place. There were 2! Master Index items, including an estimated 88 cubic yards of noncontaminated debris. The planned use for Billae was food gathering. 22 The debris survey in August 1977 found no contaminated debris, and the island was decontrolled on 7 October 1977. Debris cleanup began on 5 January 1978 and was completed on 26 February 1978. The wind indicator pole was cut down by explosive demolition on |2 January 1978. Sixty-four cubic yards of noncontaminated debris were removed.23 ALEMBEL (VERA) ISLAND CLEANUP Alembelconsists of 38 acres and was used asa scientific station during nuclear testing. It was densely vegetated with tall palm trees. No ground zeroes were located on Alembel. Debris included a 4-foot wide, 20-foot long concrete building which had contained laboratory animals, a concrete cable vault, and pieces of corroded pipe. There were four Master Index items, including an estimated 25 cubic yards of noncontaminated debris. The planned use for Alembel wasagriculture.24 Debris cleanup began on 19 January 1978 and was completed on 3 March 1978. Approximately | cubic yard of noncontaminated debris was removed.25