Helium Report for Month of May 2006 Users Amount %ofTtl Recovrd Lost %Lost $$$$$ Andraka 52 1% 52 0 0% $26.00 B20 239 4% 231 8 3% $139.50 B25 20 0% 8 12 60% $40.00 B122 96 2% 61 35 36% $135.50 B124 24 0% 11 13 54% $44.50 B126 0 0 0 $0.00 B155 0 0 0 $0.00 Biswas 382 6% 365 17 4% $233.50 Hebard 847 14% 816 31 4% $501.00 Hill 1009 16% 935 74 7% $689.50 Lee 575 9% 553 22 4% $342.50 Meisel 579 9% 529 50 9% $414.50 MKBay#1 2 0% 2 0 0% $1.00 MKBay#2 0 0 0 $0.00 MKBay#3 1076 17% 1063 13 1% $2,184.50 Petkova 0 0 0 $0.00 Stewart 18 0% 18 0 0% $9.00 Sulliva 0 0 0 $0.00 Takano 3 0% 1 2 67% $6.50 Tanner 80 1% 49 31 39% $117.50 W107 0 0 0 $0.00 W119 503 8% 481 22 4% $1,061.00 W129 0 0 0 $0.00 Astro 0 0 0 $0.00 Chemist 563 9% 512 51 9% $1,253.50 Geology 0 0 0 $0.00 MBI4.7 0 0 0 $0.00 MBI11T 0 0 0 $0.00 MBI18T 0 0 0 $0.00 Norton 168 3% 118 50 30% $461.00 NSC 0 0 0 $0.00 TOTAL 6236 431 $7,660.50 lL lost 602 lL lost / day 19 usage lost % 10% lL recovered at Master Meter 8830 recovery rate 93% transfers 76 $ amount is billed at $.50/lL used for physics or $2.00/lL for non-physics plus $2.50/lL lost. GN2 Usage Amount $$$$ NanoTech 1876 375.2 Helium Report for Month of May 2006 Users Amount %ofTtl Recovrd Lost %Lost $$$$$ Angerho 119 21% 103 16 13% $278.00 Christo 160 28% 157 3 2% $327.50 Eyler 72 13% 72 $144.00 Fanucci 26 5% 23 3 12% $59.50 Katritz 32 6% 32 100% $144.00 Kleiman L335 NMR 66 12% 55 11 17% $159.50 SpecSrv 88 16% 88 $176.00 TOTAL 563 65 $1,288.50 Recovered at Master Meter 551 Recovered at Physics 551 Recovery system loss 0 Lost 65 Total recovery rate 88% $ amount is billed at $2.00/lL used plus $2.50/lL lost This is not your bill, It is for your information only