Debris Cleanup 247 on 23 July 1978, included 720 cubic yards of noncontaminated material.7! The most significant efforts were the removal of the exterior hazards and sealing the openings of a large reinforced concrete photographic bunker (Greenhouse Station 100) which bore some beta contamination on the roof and wingwalls.’? The bunker, 28 feet wide, 33 feet long, and 33 feet high, remains the tallest structure in the northern islands (Figure 5-21). Final cleanup of Bijire, including the burnable trash accomplished during cleanup of the Lojwa Base Camp. dump, was ENJEBI (JANET) ISLAND DEBRIS CLEANUP Enjebi consists of 291 acres, making it the second largest island in the atoll. Vegetation included dense growths of Messerschmidia up to !2 feet tall on the lagoon side and much sparser shrubs, including clumps of Scaevola, on other parts of the island. On the north end, the openings were filled with hummocks of dry grass. In other openings, morning glory vines crisscrossed the landscape. Three nuclear tests were conducted on the surface of Enjebi, and it collected fallout from a total of 26 events. The island also served as the site of many scientific stations for other series of tests. Hazardous debris included reinforced concrete test structures and bunkers, concrete anchor blocks and slabs, wooden towers, a contaminated runway parking area, pecSag ; oe os bre 7 FIGURE 5-21. GREENHOUSE STATION 100.