Helium Report for Month of November 1999 Users Amount %ofTtl Recovrd Lost %Lost $ Adams 633 11% 621 12 2% $346.50 Andraka 93 2% 92 1 1% $49.00 Angerhofer 139 3% 84 55 40% $207.00 B122 350 6% 332 18 5% $220.00 B155 263 5% 247 16 6% $171.50 Chemistry 638 12% 552 86 13% $1,491.00 Hebard 380 7% 333 47 12% $307.50 Ihas 86 2% 86 0 0% $43.00 NSC 47 1% 0 47 100% $211.50 Meisel 322 6% 277 45 14% $273.50 MKBay#1 1095 20% 1049 46 4% $662.50 MKBay#2 0 0 0 $0.00 MKBay#3 240 4% 229 11 5% $147.50 Reitze 0 0 0 $0.00 Sharifi 333 6% 333 0 0% $166.50 Stewart 312 6% 308 4 1% $166.00 Sullivan 388 7% 384 4 1% $204.00 Takano 0 0 0 $0.00 Tanner 200 4% 160 40 20% $200.00 W129 33 1% 24 9 27% $39.00 TOTAL 5519 432 $4,867.00 439 lL lost 15 lL lost / day 8% of usage lost 6762 lL recovered at Master Meter 94% recovery rate 64 transfers $ amount is billed at $.50/lL used for physics or $2.00/lL for non-physics plus $2.50/lL lost.