Faqs: Lead in Tap Water

Faqs: Lead in Tap Water

FAQs: Lead in Tap Water What are some reasons I should test my tap Do I still need to test my water if I have all new water for lead? What would prompt me to pipes? Do I still need to test my water if I’m in suspect that I may have lead in my tap water? a brand new building? Some examples of potential sources of lead in Yes. Lead still can be present in new pipes and drinking water are: fittings. “Lead free” brass plumbing parts for drinking water lines can contain up to 8% lead by Lead pipes in plumbing weight. In one new building, two shut-off valves Dull gray in color and will appear shiny leached toxic amounts of lead into the building’s when scratched drinking fountains. The valves were found to be Banned since 1986 and not widely used about 6.5% lead. since the 1930s The most common problem is with brass or Copper pipes joined by lead solder chrome-plated brass faucets and fixtures. These Solder will be dull gray in color and will can leach high amounts of lead into the water, appear shiny when scratched especially hot water. Banned since 1986 and many communi- ties banned prior to 1986 According to an EPA document: “Lead- Brass pipes, faucets, fittings and valves contaminated drinking water is most often a May contain alloys of lead problem in houses that are either very old or very new. Scientific data indicate that the Sediments in screens on faucets newer the home, the greater the risk of lead Debris from plumbing can collect on contamination. Lead levels decrease as a build- screens and may contain lead ing ages. This is because, as time passes, mineral Water service line to facility is made of lead deposits form a coating on the inside of the Pipes that carry water from the municipal pipes (if the water is not corrosive). This coating water system main to the facility may insulates the water from the solder. But, during contain lead the first five years (before the coating forms) water is in direct contact with the lead. More Water fountains in the facility may contain likely than not, water in buildings less than five lead parts years old has high levels of lead contamination.” Specific brands of water fountains contain lead parts or have lead lined water tanks (Additionally, many new homes are made of Since 1988 it has been mandated that wa- copper pipes, and copper may also leach into the ter fountains be lead free but older facili- water. Some people who drink water containing ties may have outdated models. elevated levels of copper may, with short term If your water comes from a private well and exposure, experience gastrointestinal distress, has not been tested for lead and with long-term exposure may experience liver or kidney damage. See http:// water.epa.gov/drink/contaminants/ basicinformation/copper.cfm.) 1 7/14 How do I have my water tested? prepared with lead-contaminated water may be at particular risk. They consume a large amount If you receive your water from a public of water relative to their body size. system: You can contact your water system about getting your home or facility tested. EHCC is committed to helping child care Your water system may be able to test your professionals be frugal as they create healthier water for lead or refer you to an EPA environments. Our even greater commitment is accredited lab in your State. to assure that no child is placed at risk from such If your drinking water comes from a non- a preventable and unsafe exposure. public water system (such as a well): You Unfortunately, the only way to assure that tap alone are responsible for assuring that your water is not contaminated with lead is to test it. water is safe. EPA recommends routine testing That’s why Caring for our Children recommends of your water for common contaminants, that “Drinking water, including water in drinking including lead. For more information on pri- fountains, should be tested and evaluated in vate wells, visit: http://water.epa.gov/drink/ accordance with the assistance of the local info/well/index.cfm. health authority or state drinking water program to determine whether lead and copper levels are safe.” (CFOC 3rd edition, Standard 5.2.6) We recommend that you use an EPA-accredited lab in your state to test the water at your tap for Please visit http://water.epa.gov/infrastructure/ lead (and possibly other contaminants). You can drinkingwater/schools/guidance.cfm for more find a lab here: http://water.epa.gov/scitech/ information on testing child care centers for lead drinkingwater/labcert/statecertification.cfm. in drinking water. This information can also be obtained by calling Does it make a difference if my water comes EPA's Safe Drinking Water Hotline: from a public utility or if it comes from a well? Why does EHCC, which is committed to practi- Lead contamination often comes from the cal, and free or low-cost, practices for child building’s plumbing components, not from the care, urge us to incur this cost ? source water. We now know that there is no safe level of lead What about other harmful chemicals in tap wa- exposure for children. This calls for an even ter? How can I find out more? greater emphasis on preventing lead exposures whenever possible. One way to do so is to make Other harmful chemicals have been found in tap sure that your tap water does not have unsafe water. levels of lead. If you receive your water from a public sys- tem: You should receive an annual water quality report, also known as a Consumer A facility where the tap water has high levels of Confidence Report. This report is often sent lead puts every child in the facility at risk. Since with your water bill once a year in July. The every child would be drinking the water they report might contain information about other would ingest the lead. contaminants in the community water supply that you may want to have checked at your For example, infants consuming formula tap. Eco-Healthy Child Care® c/o Children’s Environmental Health Network 110 Maryland Ave. NE Suite 402 | Washington, DC 20002 202.543.4033, ext. 13 7/14 2 If your drinking water comes from a non- unsure of what an appropriate flushing time for public public water system (such as a well): your home is, contact your water utility. Please According to the US EPA, if your drinking note that flushing may not be effective in high- water does not come from a public water rise buildings. system, or you get your drinking water from a Never cook with or consume water from the household well, you alone are responsible for hot-water tap. Hot water dissolves more lead assuring that it is safe. For this reason, routine more quickly than cold water. So, do not use testing for a few of the most common water taken from the hot tap for cooking or contaminants is highly recommended. Visit drinking, and especially not for making baby http://water.epa.gov/drink/info/well/ formula. (If you need hot water, draw water index.cfm for more information. from the cold tap and heat it on the stove.) Use only thoroughly flushed water from the The contaminants of greatest concern, in cold tap for any consumption. addition to lead, include harmful bacteria, nitrates, and arsenic. Consider replacing lead-containing plumbing fixtures. If you are considering this, keep in What happens if I find elevated levels of lead in mind that the Safe Drinking Water Act (SDWA) my water? requires that only lead-free pipe, solder, or flux may be used in the installation or repair of Here is some advice from the US EPA: a public water system, or any plumbing in residential or non-residential facility providing Flush your pipes before drinking, and only water for human consumption. use cold water for cooking and drinking. Flush "Lead-free" under the SDWA means: your pipes before drinking, and only use cold solders and flux may not contain water for cooking and drinking. The more time more than 0.2 percent lead, and water has been sitting in your home’s pipes, pipe, pipe fittings, and well pumps the more lead it may contain. Anytime the may not contain more than 8.0 per- water in a particular faucet has not been used cent lead. for six hours or longer, “flush” your cold-water SDWA also requires that kitchen and bathroom pipes by running the water. Flushing times can faucets (and other fittings and fixtures intend- vary based on the plumbing configuration in ed to dispense water for human consumption) your home and whether your home has a lead meet a lead leaching standard. Those fittings service line. Single family homes with a lead and fixtures should be certified according to service line will typically require longer flush- NSF/ANSI Standard 61 for lead reduction ing times than homes without a lead service (http://bit.ly/1rhXDVg). Beginning January line. To conserve water, showering, running 2014, the maximum allowable lead content of the dishwasher or the washing machine will pipes, pipe fittings, plumbing fittings, and also flush the pipes. After this type of heavy fixtures will be reduced even further, to 0.25 water use, make sure you also flush the tap percent. that you will use for drinking or cooking by running the water to clear the rest of the Consider alternative sources or treatment of home plumbing to that tap.

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