Josh, that is a great article, and much of the information is accurate. Not sure what to think, though, of Sutherland's offhand reference to the report of the narrow guage RR, but Sutherland doesn't seem to take too seriously.
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Jim, JC, and Others,
The ten thousand "loads" (that is a good catch by Mike to notice that CBM didn't say truckloads) were topsoil. So it wasn't used for fill or building elevation. It was used for growing grass.
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J.C.
As for the nature of the soil, I believe that the issue was that the soil was mostly pure sand, and lacked the organics necessary to grow turf. Once CBM added the organics (the 10,000 loads of topsoil, I suppose) then the soil was apparently well suited for excellent turf.