330 RADIOLOGICAL CLEANUP OF ENEWETAK ATOLL | BULK-HAUL PROCEDURES Various means of loading were attempted, and all were foung satisfactory. The only differences were in thefinal load volume and loadin time. The primary meansof loading the LCU was by 5- and 20-ton dum trucks (Figure 7-3). In each case, the average load was 100 to 120 Cubic yards per bulk-haul boat, versus 48 to 60 cubic yards when carrying loadeg 20-ton trucks. The maximum rated load capacity of the bulk-haul Lcy ig approximately 150 tons. However, due to the modifications required on the LCU, the soil box capacity was reduced to approximately 120 tons, Since soil weight varied from island to island because of composition and Water content (0.98 to 1.2 tons per cubic yard), boat capacity also varied. The LCM-8 was loaded using 5- and 20-ton dumptrucks, and 2-1/2. and 5-cubic-yard bucket loaders (Figure 7-4). The loading equipmentused on the various islands was constrained by availability of equipment ang surface trafficability on the cleanup islands. The 5-ton dump trucx provided the smallest soil load per LCM-8, as only seven truckloads were possible for a maximum load of 28 cubic yards. Becauseoftheir all-whee; drive capability, the 5-ton trucks were essential where fine sand, such as that on the island of Lujor (Pearl), precluded use of the 20-ton trucks Using the 20-ton dump truck provided a maximum load of 32 cubic yards or four truckloads per LCM-8. The 2-1/2-cubic-yard bucket loader could provide a load of 32 to 35 cubic yards. However, it was not used extensively due to its limited availability. The 5-cubic-yard bucket loader provided the maximum load for the LCM-8, 52 to 56 cubic yardsofsoil, This was accomplished becauseit had a higher and longerreach and could better balance the load for vessel stability. This item of equipmentwasnot used in the loading processing until the Lujor cleanup because those available were required at Runit for the offload operation. The average load carried by the LCM-8 using the bulk-haul configuration was 30 to 35 cubic yards versus 8 to 10 cubic yards when transporting the 20-ton dumptruck. The maximum rated load capacity of the LCM-8 was approximately 60 tons. For offload, the 5-cubic-yard bucket loader was the mostefficient in terms of time. The time required was increased considerably when the 2-1/2-cubic-yard bucket loader had to be used to offload (Figure 7-5). BULK-HAUL RADIOLOGICAL PROCEDURES All boats used for transportation of contaminated soil were considered to be radiologically controlled areas, whether used for truck-haulor bulk- haul of the soil. The radiological control procedures which had been Sg