Metals are non-organic substances that occur naturally in geological formations. Some metals really need for life so we can meet it in our food and water. It is naturally available. However, there are some metals which consists in drinking water. They damage our health by chronic and acute poisoning.

Trace amounts of metals enter our water supplies naturally as rain percolates through rock; dissolving minute quantities into the water. This water enters larger water bodies which we then use as resources for drinking water. This pollution of our water resources by poisonous metals leads to go down human activity. These activities include a lot of industrial processes, such as electronics and mining, agricultural activities, and discarding of wastes in landfills.

Public water supplies are monitored for these metals regularly by EPA who has set maximum contamination levels. But private systems are not monitored. So it is only owner deal to test and treat their water.

The most spread toxic metal is ubiquitous of toxic metals. Lead and copper can leach from water pipes and soldered joints which deliver water to our tap. This is especially a problem in older homes. The toxic effects of lead can start to affect to your nerve and brain damage. Children are the most sensitive to it. Exposure may also lead to kidney damage, and blood disorders.

Copper, a by-product of pipe corrosion, acid mine drainage, iron and steel production, and sewage treatment can cause anemia, digestive disturbances and liver and kidney damage at high exposure levels.

Chromium, a by-product of mining, chrome plating, cement production, detergents, and incineration can cause liver and kidney damage.

So if you are not sure about your water supplies, you need to test it for excluding the worst thing which can effect to your health.