Date	Depth (m)	Oxygen (ppm)	Temp. (C)
08/15/1997	0	7.0	22.3
08/15/1997	1	6.8	22.0
08/15/1997	2	5.9	21.9
08/15/1997	3	5.7	21.6
08/15/1997	4	1.6	21.3