Helium Report for Month of November 1998 Users Amount %ofTtl Recovrd Lost %Lost $$$$$ Adams 152 5% 140 12 8% $106.00 Chemistry 592 19% 469 123 21% $1,491.50 Graybeal 188 6% 130 58 31% $239.00 Hebard 155 5% 155 0 0% $77.50 Ihas 0 0 0 $0.00 MSE 0 0 0 $0.00 Meisel 172 5% 172 0 0% $86.00 MKBay#1 0 0 0 $0.00 MKBay#2 2 0% 2 0 0% $1.00 MKBay#3 0 0 0 $0.00 Reitze 0 0 0 $0.00 Sharifi 252 8% 216 36 14% $216.00 Stewart 107 3% 105 2 2% $58.50 Sullivan 568 18% 532 36 6% $374.00 Takano 395 13% 377 18 5% $242.50 Tanner 192 6% 147 45 23% $208.50 B155 218 7% 190 28 13% $179.00 Angerhofer 148 5% 112 36 24% $164.00 TOTAL 3141 394 $3,443.50 525 lL lost 17 lL lost / day 17% of usage lost 4390 lL recovered at Master Meter 88% recovery rate 47 transfers $ amount is billed at $.50/lL used for physics or $2.00/lL for non-physics plus $2.50/lL lost.