Quote Originally Posted by chem geek
Do they test for total hardness and is that in the report? I have a calculator that can approximate the calcium hardness based on the typical 4 to 1 Calcium to Magneisum ratio (typical well and ground water -- mountain spring water is closer to a ratio of 2.6 to 1).

The formula is Calcium Hardness (ppm CaCO3) = Total Hardness / 2.497 (for a ratio of 4 to 1 and other conversion factors)

Richard
Nope

As this was a drinking water quality report, I'm sure they only tested for the required contaminants.