Drinking water in our system contains less than one part per billion of lead, which is well below the federal Environmental Protection Agency standard. The MCL for lead is 15.0 ppb (15.0 grams per billion grams of water).
Because of the hardness of our water, a protective mineral coating is deposited on the inside of the water pipes in the distribution system and inside your home. This helps prevent lead from leaching into your drinking water from plumbing materials.
Higher concentrations of lead levels at the consumer taps can occur when water comes into contact with lead pipes, copper pipes with lead solder or faucets containing lead.
Lead solder was banned for use on drinking water pipes in the United States in 1988.
The greatest risk of lead contamination occurs when water has been sitting in the pipe for several hours which can allow lead to leach from plumbing materials. However, tests were conducted on water in homes that might have the greatest risk of lead in the water, and only two samples were found that exceeded the MCL.