• Boil orders

    Boil water orders or advisories are public announcements advising the public that they should boil their tap water for drinking and other human consumption uses like cooking, hand washing, brushing teeth, etc.
  • Bottled water

    Find out what you need to know about bottled water.  

  • Drinking water

    There are many causes of tap water contamination, ranging from agricultural runoff, to improper use of household chemicals, and everything in between. Few of us realize the extent or impact of these low level synthetic chemicals in the water we use. Unless we take steps now, our tap water will no longer be safe.
  • How safe is Massachusetts drinking water

    Every day, more than six million Bay Staters turn on the tap and take a drink of water from a public water supply. The public water supplies in Massachusetts are among the best in the country, and they are subject to the most stringent government standards in the world.
  • Lead in tap water

    Knowing how lead gets into your tap water -- and what you can do to get it out -- will reduce the health risks to you and your family. Learn about the health effects of lead, where lead comes from, what you can do to protect you and your family, and what treatment devices are available.
  • Private drinking water testing links to PDF file

    Here you'll find answers to frequently asked questions and tips about private drinking water testing and the use of MassDEP-certified laboratories.
  • Private wells

    Here you'll find answers to frequently asked questions about private wells, information on the occurrence of arsenic and uranium in bedrock drinking water wells, private well guidelines, standards and guidelines for contaminants in Massachusetts drinking water, how you can protect your family from well water contamination, and more.
  • Radon links to Word file

    Radon is an odorless, radioactive gas formed from the breakdown of uranium and thorium. Exposure to high levels results in an increased risk of lung cancer. Here you'll find a fact sheet with helpful information regarding radon, and corrective actions should it be present in the air and water in your home.
  • Water well-being

    Explore information about responsible pesticide and fertilizer use to help ensure healthy drinking water in your community.