Why is lead in pipes at all? The answer goes back literally thousands of years to the first plumbing systems, which are names for the word “lead” in Latin,
plumbum. Lead piping was used because of its unique ability to resist pinhole leaks, while being soft enough to form into shapes that deliver water most efficiently. Lead was used in many other common products as well until scientific advancements in the 20th century demonstrated the element’s toxicity. The plumbing industry voluntarily took significant steps to reduce lead exposure.
- Lead is a common element found in the Earth’s crust.
- The U.S. Environmental Protection Agency (EPA) reports that lead is the fifth most important metal in the U.S. economy in terms of consumption.
- Approximately 85 percent of the primary lead is produced domestically.
- Lead is mined and/or smelted in the following states: Missouri, Colorado, Idaho, Utah, Montana and Texas.
Source: safeplumbing.org
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