A Division of Granite State Analytical Services, LLC.                                               Phone: 207-784-5354



If tests on your water indicate problems, the next step is to determine what type of system you need to treat the water. This can be a difficult decision because there is a wide variety of water treatment devices on the market today. Water purifiers range from relatively low-cost, simple filter devices for a kitchen faucet to more expensive, sophisticated systems that treat water from its point of entry into a home. Keep in mind, no one water treatment device can solve every problem. Some systems only soften water by removing calcium and magnesium, while others eliminate virtually all minerals and other foreign matter present in the water. Follow these links to learn more about water treatment and your choices.


There are three types of water treatment systems commonly used in private homes to treat water for a variety of contaminants: filtration, reverse osmosis and ion exchange. It may be necessary to remove a contaminant because itís unhealthful to consume; some examples are arsenic, nitrate and volatile organic compounds. Or you may want to remove something that is simply undesirable because it changes the taste of your water, makes your water hard, or stains your clothing. Iron, manganese, calcium and magnesium are examples of aesthetic contaminants that affect some of these properties of water and that homeowners often seek to remove.


Well chlorination is the practice of using chlorine in a well to kill potentially harmful microorganisms. It is advisable to chlorinate your well ...

Chlorination Instructions

Chlorinating your well annually is a good idea!


The Maine State advisory levels for radon in your home's indoor air is 4 pCi/l, but they recommend that you consider reducing levels between 2 and 4 pCi/l. The current advisory level for radon in your home's water supply is 4,000 pCi/l. This means that, at levels of 4,000 pCi/l or higher you should consider action beginning with reviewing your total radon risk (combined risk from radon in air and water). As your radon in water level gets closer to 10,000 pCi/l, you need to more strongly consider installing treatment. Follow the links below to valuable resources to help you make an educated decision about the treatment option that is right for your family.

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