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.
The Lead and Copper Rule , or LCR, is a United States federal regulation which limits the concentration of lead and copper allowed in public drinking water at the consumer's tap, as well limiting the permissible amount of pipe corrosion occurring due to the water itself.lthough lead is a known poison, the mechanical and chemical characteristics of the metal continue to keep lead as an important component in many products. In water supply, lead's durability and workability selected it for use as water pipes. Lead alloys (bronze, brass) are used for plumbing fittings.