Helium Report for Month of March 1999 Users Amount %ofTtl Recovrd Lost %Lost $$$$$ Adams 154 3% 154 0 0% $77.00 Chemistry 734 16% 627 107 15% $1,735.50 Graybeal 0 0 0 $0.00 Hebard 283 6% 262 21 7% $194.00 Ihas 0 0 0 $0.00 NSC 0 0 0 $0.00 Meisel 164 4% 149 15 9% $119.50 MKBay#1 1136 25% 1083 53 5% $700.50 MKBay#2 1349 29% 1234 115 9% $962.00 MKBay#3 0 0 0 $0.00 Reitze 0 0 0 $0.00 Sharifi 82 2% 82 0 0% $41.00 Stewart 67 1% 59 8 12% $53.50 Sullivan 310 7% 252 58 19% $300.00 Takano 0 0 0 $0.00 Tanner 71 2% 59 12 17% $65.50 B155 178 4% 170 8 4% $109.00 Angerhofer 84 2% 79 5 6% $54.50 TOTAL 4612 402 $4,412.00 727 lL lost 24 lL lost / day 16% of usage lost 6495 lL recovered at Master Meter 89% recovery rate 42 transfers $ amount is billed at $.50/lL used for physics or $2.00/lL for non-physics plus $2.50/lL lost.