Sample	Location	Date 	Description	Volume (ml)	d18O	dD	Tritium	d18O	dD
Fumarole condensate	W-3 fumarole 300°C	March 1992 after light rainfall period	1st trap collection #1	800	-3.1	-32	-0.010±0.10*	-4.1	-38
Fumarole condensate	W-3 fumarole 300°C	March 1992 after light rainfall period	2nd trap collection #1	70	-7.2	-66	n.d.
Fumarole condensate	W-3 fumarole 300°C	March 1992 after light rainfall period	1st trap collection #2	700	-3.3	-30	n.d	-4.3	-37
Fumarole condensate	W-3 fumarole 300°C	March 1992 after light rainfall period	2nd trap collection #2	70	-7	-64	n.d.
Fumarole condensate	W-3 fumarole 300°C	Aug. 1991 after normal rainfall period	Single trap	1500	-2.0	-23	0.24	n.a.	n.a.
Fumarole condensate	W-2 fumarole 300°C 	Aug.1991 after normal rainfall period	Single trap	700	-2.0	-23	0.21±0.10	n.a.	n.a.
Fumarole condensate	HMM fumarole 98°C	July 1989	Single trap	1000	-11.6	-55	1.49±0.10	n.a.	n.a.
Fumarole condensate	HMM fumarole 98°C	March 1992	1st trap	1000	-10.0	-35	n.d.	-11	-43
Fumarole condensate	HMM fumarole 98°C	March 1992	2nd trap	125	-14.4	-72	n.d.
Fumarole condensate	Sulphur Bank boiling point fumarole	April 1992	1st trap	1000	-0.56	-22.7	0.81±0.10**	-5.6	-46
Fumarole condensate	Sulphur Bank boiling point fumarole	April 1992	2nd trap	500	-5.5	-48	n.d.
Fumarole condensate	Sulphur Bank boiling point fumarole	April 1992	3rd trap	125	-12.1	-85	n.d.
Rain	Laupahoehoe beach	July 1990	Northeast coast	1000	-1.3	-9	1.85
Rain	Pu'u 'O'o crater rim	July 1990	East rift zone	1000	-0.9	-1.0	2.35
Ocean water	Laupahoehoe beach	July 1990	Scooped from surf	1000	0.42±0.4	-1	2.25