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  • How do I contact EPA about lead concerns in my area?

    Answer: You may call the National Lead Information Center at 1-800-424-LEAD(5323) or visit our Contact Us about Lead page . You can also report violations online . Question Number: 23002-33312 Find a printable PDF copy of all frequent questions pertaining to lead .

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  • Will boiling my water help?

    No. Boiling water will NOT reduce nitrate levels. In fact, it will make the level of nitrate worse because some of the water will evaporate but the nitrate will not. This increases the concentration of nitrate in water.

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  • Is it safe to shower or bathe in water if it is over the nitrate MCL of 10 mg/L?

    Nitrate is only a concern for ingestion (eating and drinking). It is not absorbed through your skin. People who install filter systems for nitrate often install them just for their kitchen sink faucet, and they use that faucet for their cooking and drinking water.

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  • What should I do if my water has elevated nitrates and/or exceeds the MCL?

    If nitrate exceeds the MCL of 10 mg/L, you should find a safe alternative drinking water supply. The quickest thing to do is to begin using bottled water for drinking. Another option is to install a treatment that will remove nitrate from your water such as reverse osmosis or a…

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  • Why is nitrate contamination a concern?

    Nitrate is an acute contaminant, meaning that health effects can occur immediately (I.e. within hours or days) of short-term exposure. Too much nitrate in your body makes it harder for red blood cells to carry oxygen. While most people recover quickly, this can be very dangerous for infants and some…

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  • What can I do to protect my family from lead contamination that was found in my neighborhood?

    If environmental exposure to lead is suspected, you should contact your local or state environmental office to determine if there are known or suspected sources of lead in the area. If there are known or suspected sources of lead, the Centers for Disease Control and Prevention (CDC) offers the following…

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  • I use a carbon filter. Will this help?

    Activated carbon filters, such as those in a “Brita” water pitcher, DO NOT remove nitrates.

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  • What are the possible health effects of nitrate exposure?

    Short-term: Excessive levels of nitrate in drinking water have caused serious illness and sometimes death. The serious illness in infants is due to the conversion of nitrate to nitrite by the body, which can interfere with the oxygen-carrying capacity of the child’s blood leading to blue baby syndrome (methemoglobinemia). This…

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  • What is nitrate?

    Nitrate (NO3) is a compound of nitrogen and oxygen naturally found in air, soil, water, and some food. Plants and animals require nitrates for their survival and growth, and the human body also produces this compound. In industry, nitrate is used as fertilizers for crops and lawns. Additionally, nitrates are…

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  • What is the potential danger posed by historical lead smelting sites?

    Answer: The potential danger posed by historical lead smelting sites varies by site and depends upon whether a completed exposure pathway to the contaminant exists. For example, if site surfaces are redeveloped and, as a result, covered, there is no direct contact. Therefore, without such exposure, there is no current…

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