Minutes of the MUCOOL collaboration weekly working meeting August 21 1:30 PMCDT Alvin tollestrup reported on the CERN power supply, which can be adapted both to the miniBOONE magnetic horn and the the Li lens for cooling. Alvin noted that the power supply could be adapted to provide power for a broad range of Li lens designs. Kevin Lee reported (by phone) on GEANT simulation for the particle ID system. Tom Kobilarcik reported on an alternative optics design for the MUCOOL beam line. Initially the BNL D2 beam line was to be moved th Meson Lab and used, but that provide a small muon flux. Tom described an alternative double bend design which would provide greater flux.