Redondo Beach Water Update

It looks like I wasn't looking at the full report, viewable here as a PDF, which does have most of the information necessary to brew. The only data point missing, alkalinity as expressed by ppm of CaCO3, was provided by Jackie, my helpful California Water Supply water quality specialist.

So here is the relevant data on Redondo Beach groundwater (ppm):

• Calcium: 150
• Magnesium 38
• Alkalinity 153
• Sodium 120
• Chloride 348
• Sulfate 150

According to the CWS website, the high Sodium and Chloride levels come from seawater influences. Seawater is salty? And it influences the groundwater supply in a beach town? Who would have guessed?