Helium Report for Month of April 2004 Users Amount %ofTtl Recovrd Lost %Lost $$$$$ Adams 0 0 0 $0.00 Andraka 314 5% 299 15 5% $194.50 Angerho 0 0 0 $0.00 Astro 0 0 0 $0.00 B20 265 4% 247 18 7% $177.50 B25 0 0 0 $0.00 B122 924 13% 884 40 4% $562.00 B124 127 2% 123 4 3% $73.50 B155 0 0 0 $0.00 Biswas 0 0 0 $0.00 Chemist 437 6% 362 75 17% $1,061.50 Geology 0 0 0 $0.00 Hebard 150 2% 150 0 0% $75.00 Hill 2067 30% 1937 130 6% $1,358.50 Ihas 10 0% 0 10 100% $30.00 Lee 0 0 0 $0.00 Norton 172 2% 0 172 100% $774.00 NSC 53 1% 51 2 4% $111.00 MBI4.7 121 2% 121 0 0% $242.00 MBI11T 485 7% 485 0 0% $970.00 MBI18T 0 0 0 $0.00 Meisel 260 4% 249 11 4% $157.50 MKBay#1 12 0% 12 0 0% $6.00 MKBay#2 0 0 0 $0.00 MKBay#3 1028 15% 1028 0 0% $2,056.00 Stewart 292 4% 278 14 5% $181.00 Sulliva 64 1% 64 0 0% $32.00 Takano 0 0 0 $0.00 Tanner 164 2% 124 40 24% $182.00 W129 0 0 0 $0.00 TOTAL 6945 531 $8,244.00 lL lost 783 lL lost / day 24 usage lost % 11% lL recovered at Master Meter 8837 recovery rate 91% transfers 68 $ amount is billed at $.50/lL used for physics or $2.00/lL for non-physics plus $2.50/lL lost. GN2 Usage Amount $$$$ NanoTech 1097 219.4 Helium Report for Month of April 2004 Users Amount %of Ttl Recovrd Lost %Lost $$$$$ Bowers 20 5% 16 4 20% $50.00 Christo 142 32% 139 3 2% $291.50 Eyler 166 38% 152 14 8% $367.00 Katritz 24 5% 24 100% $108.00 Kleiman NMR 85 19% 56 29 34% $242.50 SpecSrv Talham Richard TOTAL 437 74 $1,059.00 Recovered at Master Meter 519 Recovered at Physics 518 Recovery system loss 1 Lost 75 Total recovery rate 83% $ amount is billed at $2.00/lL used plus $2.50/lL lost This is not your bill, It is for your information only