Table 1. Mineral Composition in mg/L of Ultrasonically Treated Waters^72a.

	water sample					Volvic:Evian
	Millipore	tap	Volvic	Ballygowan	Evian	3:1	1:1	1:3
pH	5.8	7.2	7.3	7.5	7.6	7.28	7.35	7.43
conductivity (at 20 °C)	<0.02	0.17	0.23	0.64 (0.58)	0.60 (0.54)	0.31	0.41	0.51
total hardness as CaCO3 (TDS)	0	59	70	316	332	136	201	267
total hardness as Ca		24	28	127	133	54	80	107
calcium		19.7	12	93.2	79.9	29	45	63
magnesium		1.8	8.2	20.1	27.5	13	18	23
sodium		7	12	15	7	10	9	8
potassium		–nd	6	3	1	5	3.5	2
chloride		12.7	14	24	10.6	15	13	12
sulfate		23.48	8.5	15	13.29	10	11	13

^aTrace amounts are indicated by a dashed line. ζ-potential is measured in mV. Conductivity in mS/cm is standardized to 25 °C, with an error of ±0.01 mS/cm. Properties of three Volvic:Evian mixtures are included.