Helium Report for Month of July 1999 Users Amount %ofTtl Recovrd Lost %Lost $$$$$ Adams 431 8% 409 22 5% $270.50 Andraka 36 1% 34 2 6% $23.00 Angerhofer 149 3% 138 11 7% $102.00 B127 92 2% 88 4 4% $56.00 B155 252 5% 226 26 10% $191.00 Chemistry 628 12% 536 92 15% $1,486.00 Graybeal 0 0 0 $0.00 Hebard 84 2% 84 0 0% $42.00 Ihas 0 0 0 $0.00 NSC 0 0 0 $0.00 Meisel 71 1% -68 139 196% $383.00 MKBay#1 1378 26% 1327 51 4% $816.50 MKBay#2 1074 20% 1001 73 7% $719.50 MKBay#3 0 0 0 $0.00 Reitze 0 0 0 $0.00 Sharifi 507 9% 487 20 4% $303.50 Stewart 0 0 0 $0.00 Sullivan 551 10% 531 20 4% $325.50 Takano 0 0 0 $0.00 Tanner 93 2% 64 29 31% $119.00 W129 0 0 0 $0.00 TOTAL 5346 489 $4,837.50 741 lL lost 25 lL lost / day 14% of usage lost 6695 lL recovered at Master Meter 89% recovery rate 55 transfers $ amount is billed at $.50/lL used for physics or $2.00/lL for non-physics