What is the desirable alkalinity level of water?

The desirable alkalinity level of water is typically considered to be in the range of 30 to 100 mg/l. This level of alkalinity is ideal because it helps to stabilize pH levels in the water, providing resistance to fluctuations that can harm aquatic life and affect water quality. Adequate alkalinity also aids in the removal of pollutants and heavy metals, making the water safer for use.

In natural waters, alkalinity primarily comes from bicarbonate and carbonate ions, which are beneficial in neutralizing acids. Maintaining alkalinity within the 30 to 100 mg/l range ensures a healthy balance for ecosystems and supports various biological processes. Beyond this range, particularly if alkalinity is too low, water becomes more susceptible to acidification, which can lead to adverse environmental impacts.