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Runit (Yvonne) Cleanup and Crater Containment
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facilities had to be constructed just north of the hotline. During tremie
operations, transit-mix trucks would be loaded at the batch plant with
contaminated soil, cement, and attapulgite. These materials would be
charged with water and mixedas the truck was driven from the batch plant
to the crater, where the mix would be discharged into the tremie pump.
Batch plant facilities included a sprinkler system to contro! dust, a t-1/2inch screening plant to separate large rocks, branches, and similar
extraneous material from the contaminated soil, feeder belts, and the
plant itself. Materials placed in the hoppers were measured and gravity fed
into the transit-mix trucks (Figure 8-16). Foundations and pads for the
batch plant facilities were constructed in February 1978 by personnel from
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Company B, USAE, assigned to assist Company A in Runit site
preparation work. They also completed the large cement storage
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warehouse, installed a power distribution system, and constructed the
northern island road system while Company A completed installation of
the batch plant and rock crusher plant.39 Before work could begin on the
haul roads between the batch plant and the crater, an IMP survey of the
routes was required. Since DOE’s soil characterization work on Runit was
still being delayed, priorities were adjusted to permit the survey and
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completion of the roads.40
Runit site construction and the crater containment operations required
large quantities of aggregate and rock. Until a quarry could be opened on
FIGURE 8-16. BATCH PLANT OPERATION.