Groundwater is the largest supply of freshwater on earth, and the biggest source of drinking water for the U.S. This unseen source, which exists under layers of soil, rock, and sediment, contains significantly more freshwater than rivers and lakes combined.
Knowing the amount of sodium in your drinking water is
important for your health, especially if you have high blood
pressure. Sodium is an essential mineral for maintaining a
healthy fluid balance and is important for brain function and
muscle contractions but consuming too much sodium can
elevate your blood pressure.