In the early stages, the symptoms of ALS -- also called Lou Gehrig's disease -- include: 1  Increasing weakness in one limb, especially in a hand. 2  Difficulty walking. 3  Clumsiness of the hands. 4  Fasciculations, which are subtle, light twitches under the skin.  Impaired speech.
The Safe Drinking Water Act (SDWA) Section 1417(a)(1) required that after June 19, 1986 only lead free pipe, solder or flux could be used in the installation or repair of any plumbing in residential or non-residential facility providing water for human consumption, which is connected to a Public Water System.
Most lead poisoning in children results from eating chips of deteriorating lead-based paint. Water pipes and imported canned goods. Lead pipes, brass plumbing fixtures and copper pipes soldered with lead can release lead particles into tap water. Lead solder in food cans, banned in the United States, is still used in some countries.