Toxins in water. Have it tested and discuss it with your health department. If it too much you will have to get another source of water or a a proven filtration system. Some degree of these compounds are common in certain geographical regions and not neccessarily harmful.
That depends. On how much is there. Some arsenic and Fluoride is naturally present in water from erosion of natural deposits. If the arsenic level is below 10 ug/l and the Fluoride level is below 2.2 mg/l then it is not really a problem. If the values are higher then you need to install a qualified filtration system prior to drinking this water.
Arsenic and Fluoride. Chronic arsenic poisoning results from drinking contaminated well water over a long period of time. Chances are there will be none in your local tap water. For 65 years, community water fluoridation has been a safe and healthy way to effectively prevent tooth decay. CDC has recognized water fluoridation as one of 10 great public health achievements of the 20th century. Read more...