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.
Interesting Lead Facts: Lead has been in use by ancient civilizations for thousands of years, and is mentioned in the second book of the Old Testament. Lead pipes on the baths have the official insignia of the Roman emperor and are still in use today. Lead has a long history in alchemy, since many alchemists believed lead could be turned into gold. Lead is one of the toxic elements whose poisonous properties were discovered even by early civilizations, and lead poisoning has been documented in writings from ancient Greek, Roman, and Chinese. Lead acts as a neurotoxin, damaging the central nervous system.