Lead

While lead is rarely present in water coming from a treatment plant, it can enter tap water through corrosion of some plumbing materials. The U.S. Environmental Protection Agency (EPA) notes that “the greatest exposure to lead is swallowing or breathing in lead paint chips or dust.” Lead is a concern because if it builds up in the body over many years it can cause damage to the brain, red blood cells and kidneys. The greatest risk is to young children, pregnant women and their unborn babies.

If you’re concerned about lead in your drinking water, you can take several steps to limit possible exposure.

• You can’t see, smell or taste lead in your water. Testing at the tap is the only way to measure the lead levels in your home or workplace. If you choose to have your tap water tested, be sure to use a properly certified laboratory. Testing usually costs between $20 and $100.
• Flushing your water tap clears water from your plumbing and home service line to ensure you are getting drinking water from the main, where lead is rarely present. Let the water run from the tap until it is noticeably colder (this may take two minutes or more) before using it for cooking or drinking. Flushing the tap is particularly important when the faucet has gone unused for more than a few hours.
• Some home treatment devices remove lead, but not all do. Before you purchase a home treatment device, you should verify the manufacturer’s claims. A good resource to assist you is NSF International. Once a treatment device is installed, make sure it is properly maintained.
• Use only cold water for cooking or drinking. Lead leaches more easily into hot water than cold water. Boiling water DOES NOT remove lead.
• Consult with your family doctor or pediatrician to receive a blood test for lead and learn more about the health effects associated with exposure.