Whole house water filtration in Groton, MA

Water Filtration Options

As beautiful as the well preserved rural town of Groton, MA is, if you have a private well supplying your home’s water needs, the quality of that water may require some type of water filtration system or water softener. A properly designed, installed and maintained water filtration system will provide you with truly excellent water quality for your home or business.


Water testing in Groton, MA

Water Testing

Water testing should be conducted by an EPA or Massachusetts state certified laboratory and should minimally include analysis for the parameters in the table below. If you are uncertain as to how to take a proper sample or what to test for, you should contact a lab or water treatment professional for assistance. Certain items can be tested for on-site by a qualified water treatment professional  For health threat contaminants, a proper sample should be taken to a certified state laboratory. Typical items tested for are as follows:


Coliform bacteria pH
Arsenic Radon
Chloride Sodium
Iron Sulfate
Lead Conductivity
Manganese Nitrogen-Nitrate

Common issues encountered in Groton private wells are manganese and iron along with low pH and sometimes the health threats radon and arsenic making their way into the water. If the testing results for Radon exceed the current Massachusetts guideline of 10,000 pCi/L in water, the radon must be removed from the water and the Board of Health recommends testing the air for Radon as well.  It should be noted that New Hampshire requires action if radon is 2,000 pCi/L (pico curries per liter), Maine and Rhode Island are at 4,000 pCi/L. The maximum allowable level of Arsenic in drinking water per the EPA is .01 mg/L (miligrams per liter) or 10 parts per billion. For more information on this see the link at arsenic-in-private-well-water.


High Efficiency Water Softener


A water softener is typically installed to remove dissolved iron, dissolved manganese and hardness minerals in the water through a technology called Ion Exchange. Sediment filtration will remove particulate iron or manganese in the water.

REGIONAL HEALTH THREATS – Radon & Arsenic in Private Wells

Removing radon from water requires a system where the water is highly agitated releasing the radon gas from the water into a sealed chamber, then safely vented outside the home to ambient air. These systems are typically installed in the basement at the water supply point of entry.

Water filtration for Radon in well water Groton Ma

Radon in Water Filtration

Arsenic is removed with tanks containing a specific media that “grabs” the arsenic out of the water.

twin arsenic ozone filter Groton MA

Twin Arsenic system with Ozone

Again, any water filtration system designed should start with a water test before an informed recommendation can be made.

H2O Care is an established water filtration and testing firm, formed in 1989 with offices in Stow & Middleton, MA.  Articles published by the Company can be seen in Water Technology Magazines at https://h2ocare/pub/. Contact us at [email protected] or 978-777-8330.

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