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  • Visit and examination requirements for SPCC self-certification

    Pursuant to 40 CFR §112.6, the owner or operator of a facility that meets the criteria in §112.3(g) for either a Tier I or Tier II qualified facility may self-certify the facility's SPCC Plan. As part of the self-certification, the owner or operator must certify that he or she has…

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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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  • Availability of electronic SPCC Plan template

    Part 112, Appendix G to prepare an SPCC Plan. Is the Tier I qualified facility SPCC Plan template available in an electronic version? EPA has made available electronic versions of the Tier I qualified facility Plan template to help the owner or operator of a Tier I qualified facility develop…

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  • Can you explain who has authority over the active mine vs the Superfund site?

    The Montana Department of Environmental Quality has regulatory authority over the active mine. EPA is the lead agency for the Silver Bow Creek/Butte Area Superfund Site and works in consultation with MDEQ to ensure the cleanup of the Site.

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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 is EPA doing?

    EPA is working with its governmental partners and other stakeholders to investigate and address the issue. Most recently, EPA issued a letter to the state of Minnesota requesting a plan of action to address nitrate contamination in 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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  • How do I have my drinking water tested in the future?

    Minnesota Department of Health (MDH) recommends you use an accredited laboratory to test your water. Contact an accredited laboratory to get sample containers and instructions or ask your county environmental or public health services if they provide well testing services. Accredited Labs in Minnesota Accepting Drinking Water Samples from Private…

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  • How are people potentially exposed to nitrate?

    For many situations, the potential for children’s exposure from drinking water is medium to low. The potential can be higher when private wells become contaminated with nitrates from feed lot and agricultural runoff, and contaminated groundwater. Some geographic areas are at higher risk of drinking water contamination of private wells…

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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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  • Tier I qualified facility template use under Part 112

    In the 2008 Amendments to the SPCC Rule, EPA provided a template for the owner or operator of a Tier I qualified facility to create an SPCC Plan. Does EPA require a Tier I qualified facility to use the template in 40 CFR Part 112, Appendix G? Does EPA allow…

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  • Difference between an SPCC Tier I and Tier II qualified facility

    In the SPCC regulations in 40 CFR Part 112, what is the difference between a Tier I and Tier II qualified facility? How did EPA establish the multi-tiered approach for qualified facilities? A Tier II qualified facility is one that has an aggregate aboveground oil storage capacity of 10,000 U.S…

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