by John Geiger
Hard water has a high mineral content, particularly calcium and magnesium. These naturally occurring minerals can dissolve into water as it percolates through mineral-rich rocks such as limestone, chalk, or gypsum. Hard water is not harmful to health but can, over time, leave deposits that impact appliances and plumbing.
Water hardness can be measured in parts per million (ppm). Hardness levels vary around The Woodlands from a low of 29.2ppm (CaCO3) to a high of 68.0ppm (CaCO3).
The average water hardness in The Woodlands is 51.9ppm (CaCO3).
