Helium Report for Month of April 2008 Users Amount %ofTtl Recovrd Lost %Lost $$$$$ Andraka 109 2% 97 12 11% $119.40 B20 228 4% 221 7 3% $168.30 B25 61 1% 61 0 0% $36.60 B122 31 1% 31 0 0% $18.60 B124 0 0 0 $0.00 B126 0 0 0 $0.00 B155 0 0 0 $0.00 Biswas 0 0 0 $0.00 Hebard 265 4% 260 5 2% $181.50 Hill 1027 17% 949 78 8% $967.20 Lee 0 0 0 $0.00 Meisel 340 6% 328 12 4% $258.00 MKBay#1 0 0 0 $0.00 MKBay#2 1128 19% 1127 1 0% $2,486.10 MKBay#3 1290 21% 1221 69 5% $3,148.50 Petkova 0 0 0 $0.00 Stewart 30 0% 27 3 10% $31.50 Sulliva 368 6% 346 22 6% $319.80 Takano 0 0 0 $0.00 Tanner 9 0% 4 5 56% $27.90 W107 0 0 0 $0.00 W119 172 3% 168 4 2% $396.40 W123 365 6% 355 10 3% $848.00 Astro 0 0 0 $0.00 Chemist 381 6% 282 99 26% $1,283.70 Geology 58 1% 0 58 100% $388.60 MBI 0 0 0 $0.00 Norton 203 3% 151 52 26% $680.60 NSC 0 0 0 $0.00 TOTAL 6065 437 $11,360.70 lL lost 808 lL lost / day 27 usage lost % 13% lL recovered at Master Meter 7796 recovery rate 90% transfers 60 $ amount is billed at $.60/lL used for physics or $2.20/lL for non-physics plus $4.50/lL lost. GN2 Usage Lab Amount $$$$ Abernat 223 $44.60 Chan 510 $102.00 Hebard 115 $23.00 NanoT 3750 $750.00 Petkova 0 $0.00 Ren 658 $131.60 Rinzler 843 $168.60 Shiva 0 $0.00 Saab 19 $3.80 Tanner 582 $116.40 Helium Report for Month of April 2008 Users Amount %ofTtl Recovrd Lost %Lost $$$$$ Angerho Christo 134 35% 106 28 21% $420.80 Eyler 48 13% 48 $105.60 Fanucci 30 8% 27 3 10% $79.50 Hummel Katritz 59 15% 59 100% $395.30 Kleiman NMR 23 6% 21 2 9% $59.60 SpecSrv 87 23% 80 7 8% $222.90 TOTAL 381 99 $1,283.70 Recovered at Master Meter 380 Recovered at Physics 379 Recovery system loss 2 Lost 101 Total recovery rate 74% $ amount is billed at $2.20/lL used plus $4.50/lL lost This is not your bill, It is for your information only