Table 1 Oxygen and strontium isotope ratios of tap waters from sites within Salt Lake City, Utah.

Site	Latitude	Longitude	δ¹⁸O (‰, VSMOW)				⁸⁷Sr/⁸⁶Sr
Site	Latitude	Longitude	Mean	Min	Max	n	Mean	Min	Max	n
1	40.7523	−111.8544	−16.1 ± 0.3	−16.4	−15.6	8	0.71036 ± 0.00026	0.71002	0.71076	8
2	40.7249	−111.8543	−16.0 ± 0.4	−16.8	−15.3	12	0.71032 ± 0.00023	0.70999	0.71071	11
3	40.7398	−111.8259	−15.9 ± 0.4	−16.6	−15.3	11	0.71018 ± 0.00032	0.70949	0.71060	10
4	40.7599	−111.9382	−16.1 ± 0.4	−16.5	−15.5	13	0.71190 ± 0.00180	0.70908	0.71434	12
5	40.7610	−111.9322	−16.0 ± 0.4	−16.8	−15.4	9	0.71196 ± 0.00196	0.70906	0.71493	8
6	40.7905	−111.9366	−16.2 ± 0.4	−16.7	−15.3	13	0.71014 ± 0.00060	0.70919	0.71132	12

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