Massachusetts well water testing

What to Know About Well Inspections

As a home seller or buyer in Massachusetts, there are always questions that come up regarding testing the water when a private well services a home.

If you happen to be buying a Massachusetts home serviced by a well and not by public water, you better make sure that you have it tested as part of your contingency of sale!

When working as a buyers agent, one of my functions is recommending a good home inspector. In addition to the home inspection, part of the buyers, due diligence also includes testing for other things such as radon, mold, and water.

When you are testing the water, you will want to do what is known as the quality and quantity test. Both tests are equally important as you want to ensure the water is safe and you will have enough to service the home properly.

A well inspection is completed by professional well inspectors.

Massachusetts Well Quality Testing

While testing can vary from state to state on what you should be checking, the Environmental Protection Agency (EPA) suggests that you should be screening for coliform bacteria, nitrates, and the PH level. You should also check for harmful contaminants such as arsenic, lead, copper, and volatile organic compounds. Massachusetts has no state requirement for testing a well when purchasing a home!

Under Massachusetts General Law (MGL Ch.111 s.122), local Boards of Health have the primary jurisdiction over regulating private wells. The local health board is empowered to adopt Private Well Regulations that establish criteria for private well siting, construction, water quality, and quantity.

For example, in my hometown of Hopkinton, Massachusetts, the board of health has instituted a policy that makes it mandatory to test the quality of your well when selling your home if it has not been done in the last 5 years. Knowing that the town’s homes have good potable water is a measure of public safety.

Interestingly, most lenders using conventional loan products do not require testing a home’s water system. You would think a bank would want to know that the home they are lending money on has a sound water system, but I have rarely seen this as a condition.

The water sample should be taken from the cold water tap at the kitchen sink. If the home has a water treatment system, you should get two water samples taken. One before the filtration system and one after.

This, of course, makes perfect sense because it would allow you to know what contaminates are present and also make you aware if the water treatment system is doing its job as intended. Interestingly enough, I have rarely ever seen an inspector do both. Believe it or not, I usually see it done one way or the other but not both.

Inspector Do Well Quality Inspections

Some home inspectors will provide water quality testing as part of their service. When working as a buyers agent, I like to have my clients use the services of a well company that specializes in water testing. Whoever takes the sample will usually send it to the lab to analyze the water. The lab that the water is sent to should be state certified. These labs follow specific procedures for testing contaminants.

The charge for testing the water quality can vary from inspector to inspector. I would plan for a water quality test for at least a couple hundred dollars. Once the test is completed and the water has been checked, you will get a report that spells out the level of each compound in the water along with a corresponding limit that the EPA requires for it to be considered a passing test.

Testing For Radon in Water is Important

One element that often goes untested is Radon. While many buyers know radon in the air and usually test for it, many Real Estate agents fail to recommend that their buyers test for radon in the water. You need to ask to screen for this, as it is generally not provided in a standard test.

A couple of things should be noted about radon in the water. There is no national EPA-mandated passing level for radon in the water. It varies from state to state. In Massachusetts, the passing level is under 10,000 pCi/L.

The cost of remedying radon in water is much more costly than when it is found in the air. Generally speaking, radon found in the air inside a home can be cured for around $1000-$1500. Most of the homes I have sold that had a radon issue cost around $1000 to re-mediate.

Radon in water is a different story. Depending on the type of systems used, the cost generally can run between a couple thousand up to seven or eight thousand.

The two types of radon treatment systems are aeration and granulated activated carbon (GAC). The aeration system is the more expensive of the two. Both are considered effective, but the aeration system is preferred in homes where the pCi/L is higher than 25,000.

Massachusetts Well Quantity Testing

Massachusetts well quantity testing When a well is 1st drilled, there is usually a log registered at the local board of health. Within the log, there will be information regarding the well’s capacity and the yield in gallons per minute.

It is always good to see the well’s history when installed; however, the yield could change over time. This makes it vital to check the well’s quantity before buying a home. Some companies specifically deal with checking how much water a well produces.

The company that is hired to test the well quantity will more than likely run a garden hose into a one-gallon bucket and monitor the output over 4 hours.

Understand the Well Inspection Flow Rate

Most boards of health agencies and others in the well industry recommend a flow rate of 5 gallons per minute for 4 hours as an optimum minimum water supply capacity for a private well. This volume is equivalent to 1200 gallons of water delivered within 4 hours and should be adequate for all indoor water usage as well as a modest amount of outdoor use, not including heavy irrigation.

If you are a fan of having a perfectly manicured lawn and landscaping and are using large amounts of water through an irrigation system, you are more than likely going to want the well to produce more than 5 gallons per minute.

Northeast Water Well is a Good Local Well Inspection Company

The company that is my preferred vendor for water testing is Northeast Water Wells. I have found Northeast Water Wells to be very customer service-orientated and knowledgeable. They are a full-service well-testing company that will work with irrigation wells, geothermal wells, well abandonment and rehabilitation, hydrofracking, zone fracking, sanitizers and water softeners, water pressure holding tanks, and pressure boosting pumps, among others.

Northeast Water Wells does testing all around Massachusetts and is also located in New Hampshire.

Testing a well when buying a Massachusetts home is always an important consideration!

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About the author: Bill Gassett, a nationally recognized leader in his field, provided the above Real Estate information on testing a Massachusetts well when buying a home. Bill can be reached via email at or by phone at 508-509-4867. Bill has helped people move in and out of many Metrowest towns for the last 36+ Years.

Thinking of selling your home? I am passionate about real estate and love sharing my marketing expertise!

I service Real Estate Sales in the following Metrowest MA towns: Ashland, Bellingham, Douglas, Framingham, Franklin, Grafton, Holliston, Hopkinton, Hopedale, Medway, Mendon, Milford, Millbury, Millville, Northborough, Northbridge, Shrewsbury, Southborough, Sutton, Wayland, Westborough, Whitinsville, Worcester, Upton, and Uxbridge MA.