Helium Report for Month of April 2007 Users Amount %ofTtl Recovrd Lost %Lost $$$$$ Andraka 112 2% 107 5 4% $68.50 B20 189 4% 183 6 3% $109.50 B25 0 0 0 $0.00 B122 43 1% 40 3 7% $29.00 B124 27 1% 27 0 0% $13.50 B126 0 0 0 $0.00 B155 0 0 0 $0.00 Biswas 617 13% 604 13 2% $341.00 Hebard 448 10% 411 37 8% $316.50 Hill 828 18% 731 97 12% $656.50 Lee 0 0 0 $0.00 Meisel 242 5% 235 7 3% $138.50 MKBay#1 0 0 0 $0.00 MKBay#2 0 0 0 $0.00 MKBay#3 1068 23% 1054 14 1% $2,171.00 Petkova 0 0 0 $0.00 Stewart 99 2% 95 4 4% $59.50 Sulliva 0 0 0 $0.00 Takano 0 0 0 $0.00 Tanner 66 1% 41 25 38% $95.50 W107 0 0 0 $0.00 W119 0 0 0 $0.00 W129 0 0 0 $0.00 Astro 0 0 0 $0.00 Chemist 533 12% 491 42 8% $1,171.00 Geology 0 0 0 $0.00 MBI 176 4% 176 0 0% $352.00 Norton 178 4% 158 20 11% $406.00 NSC 0 0 0 $0.00 TOTAL 4626 273 $5,928.00 lL lost 582 lL lost / day 20 usage lost % 13% lL recovered at Master Meter 6360 recovery rate 91% transfers 55 $ amount is billed at $.50/lL used for physics or $2.00/lL for non-physics plus $2.50/lL lost. GN2 Usage Lab Amount $$$$ Abernat 277 55.4 Chan 181 36.2 NanoT 3901 780.2 Ren 843 168.6 Helium Report for Month of April 2007 Users Amount %ofTtl Recovrd Lost %Lost $$$$$ Angerho 89 17% 72 17 19% $220.50 Christo 133 25% 124 9 7% $288.50 Eyler 83 16% 67 16 19% $206.00 Fanucci 26 5% 26 $52.00 Hummel Katritz Kleiman NMR 115 22% 107 8 7% $250.00 SpecSrv 87 16% 82 5 6% $186.50 TOTAL 533 55 $1,203.50 Recovered at Master Meter 483 Recovered at Physics 483 Recovery system loss 0 Lost 55 Total recovery rate 90% $ amount is billed at $2.00/lL used plus $2.50/lL lost This is not your bill, It is for your information only