Frequent Questions

What is the current standard for total chromium in drinking water?

The current standard is set at 100 parts per billion. EPA?s regulation assumes that the sample is 100% chromium-6. This means the current chromium standard has been as protective and precautionary as the science of that time allowed. The current standard is based on potential adverse dermatological effects over many years, such as allergic dermatitis. For more information on chromium, please visit our Web site at the following URL: http://water.epa.gov/drink/contaminants/basicinformation/chromium.cfm
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