Revised fuel use projections and a comparison with last year's fuel use are presented in the attached table. Holes in the ice for the detectors were made using hot-water drilling techniques.
Cables carry signals from the detector arrays to a building on the surface.
This effort will increase the number of strings to a total of 20. The action is not one which would create more than a minor or transitory effect on the antarctic environment, within the meaning of the NSF's implementing requirements for the Protocol on Environmental Protection to the Antarctic Treaty. The minor amendment to the environmental document does not substantively alter the environmental effects or findings. Therefore, the project will be implemented as amended without additional environmental review. The first hole used approximately 9000 gallons of fuel.