On the peninsula (Purissima Hills Water District) we pay about €1.49&#x2F;kL for the same Hetch Hetchy water. The quality of San Francisco&#x27;s water is pretty amazing. At home I measure a total dissolved solids of &lt;35 ppm. Compare to San Jose municipal water with a TDS usually above 400 ppm (the value does jump around a lot depending on where SJ is getting its water from).