Table 4.

Isotopic composition of water samples distilled using the WASP and analysed by CRDS

Sample	δ17O (‰)	1σ (‰)	δ18O (‰)	1σ (‰)	δ2H (‰)	1σ (‰)	d‐excess (‰)	1σ (‰)	17O‐excess (per meg)	1σ (per meg)
JRW	−9.99	0.01	−18.85	0.02	−146.01	0.19	5.6	0.2	−4	13
JRW‐WASP	−10.02	0.03	−18.90	0.05	−146.19	0.20	5.9	0.2	2	13
BOTTY	−3.95	0.02	−7.52	0.02	−50.18	0.21	10.6	0.2	20	13
BOTTY‐WASP	−3.96	0.02	−7.54	0.03	−50.22	0.11	10.7	0.3	24	10
SPIT	−0.07	0.02	−0.13	0.03	0.16	0.14	1.5	0.3	−6	11
SPIT‐WASP	−0.08	0.02	−0.17	0.02	−0.17	0.20	1.4	0.3	6	13
ENR	5.64	0.02	10.76	0.01	40.23	0.10	−46.4	0.1	−36	18
ENR‐WASP	5.55	0.02	10.59	0.02	39.58	0.12	−45.6	0.1	−37	12
DEPO‐03A	3.03	0.03	5.81	0.02	21.34	0.16	−25.3	0.2	−43	21
DEPO‐03B	3.03	0.02	5.80	0.02	21.33	0.08	−25.3	0.2	−40	17
DEPO‐06A	4.15	0.01	7.95	0.01	34.02	0.18	−29.9	0.2	−47	10
DEPO‐06B	4.20	0.03	8.03	0.03	34.40	0.11	−30.1	0.2	−36	16