You can test the water to show if pollution is present. To make sure that your family uses healthy water, your well should be tested every year or two. Well water should be tested when . Nitrates lower the amount of oxygen in a baby's body and can make the baby suffocate. Coliform bacteria can cause illness.
Sulfates cause diarrhea in humans.
Sulfates are found in water supplies, combined with calcium and magnesium in the form of salts. The salts, usually called epsom salts, are okay in small amounts. Pesticides and other chemicals can enter the well through a spill. Some of these chemicals could cause cancer, birth defects, or other illness in humans and animals if they reach high levels in drinking water. Metals in drinking water, like lead, can cause damage to humans, especially to young children.