The biggest health risk in a New England home often isn’t in the walls — it’s coming out of the kitchen tap.
Half the State Drinks From a Well — and No One Is Required to Test It
If you’re buying a home in rural Maine or New Hampshire this summer, there’s a good chance your water won’t come from a municipal system. State health officials estimate that roughly half of Maine residents and a large share of New Hampshire households rely on private wells for their drinking water — among the highest rates of private well use in the country.
Here’s the part that surprises buyers: in Maine, sellers are not required by law to test a private well before selling the home. The responsibility falls entirely on the buyer. That means a family can close on a house, move in, and pour their first glass of water without ever knowing what’s actually in it. And in New England, what’s in it is often shaped by the granite bedrock the wells are drilled into.
Summer is peak home-buying season across northern New England, which means thousands of buyers are working through tight due-diligence windows. Water testing is one of the easiest steps to skip under deadline pressure — and one of the costliest to skip.
What’s Actually in New England Groundwater
The bedrock that makes Maine and New Hampshire beautiful also leaches naturally occurring contaminants into well water. The most common concerns include:
- Arsenic — A known carcinogen tied to the region’s bedrock. State data suggests roughly 1 in 10 private wells in parts of Maine and New Hampshire exceed the federal arsenic standard, and in some towns the rate is far higher.
- Radon in water — The same radioactive gas that collects in basements also dissolves into well water and is released into the air during showers and dishwashing.
- Uranium — Another bedrock contaminant that can affect kidney health over time.
- Bacteria — Total coliform and E. coli signal that surface water or waste is reaching the well, a risk that often rises after heavy summer rain.
- Nitrates — Linked to fertilizer and septic systems; especially dangerous for infants.
- PFAS and MTBE — “Forever chemicals” and fuel additives that have shown up in groundwater across both states.
Most of these have no taste, color, or smell. The only way to know they’re present is to test.
What Buyers and Sellers Should Do
For buyers, the move is simple: make well water testing a written contingency in your purchase agreement, the same way you would a structural inspection. That gives you the right to renegotiate — or walk away — if results come back high. Don’t rely on a test the seller ran years ago; arsenic and radon levels can change, and bacteria readings can shift season to season.
For sellers, getting ahead of this pays off. A clean, recent water report removes a major question mark for buyers and keeps deals from stalling late in the process. If treatment is needed, knowing early lets you install a system on your timeline instead of under a closing deadline.
Ongoing, wells should be tested for bacteria and nitrates every year, and for arsenic, radon, and uranium every three to five years.
What the Inspection Actually Involves
A proper well water evaluation goes well beyond a quick taste test. At FPI, water testing draws a sample under controlled conditions and screens for the contaminants that matter in this region — bacteria, arsenic, nitrates, and more — with results returned through accredited laboratory analysis. For homes where bedrock radon is a concern, we also offer radon-in-water testing and PFAS screening, so buyers get a complete picture rather than a single data point.
We pair the water results with the rest of the home evaluation, including the well’s mechanical components and the surrounding site, so you understand not just what’s in the water but why.
For Agents: Protect the Deal and the Client
Well water is one of the most overlooked contingencies in northern New England transactions, and it’s one of the easiest to lose track of during a fast summer closing. Agents who raise water testing early — before the offer is even written — help clients budget the right due-diligence timeline and avoid a last-minute scramble.
It also protects you. A buyer who discovers an arsenic problem after closing is a buyer who feels blindsided. Building a water-testing contingency into the offer demonstrates diligence and keeps the transaction clean. On the listing side, encouraging sellers to test up front removes a common renegotiation trigger and keeps deals moving toward the closing table.
The agents who treat water quality as a standard step — not an optional add-on — are the ones whose deals close smoothly and whose clients come back.
Test the Water Before You Sign
Focused Property Inspections offers well water testing, radon-in-water testing, and PFAS screening across Maine and New Hampshire, with same-day inspection reports so you have answers before your due-diligence window closes. Veteran-owned and detail-driven, we inspect the home the way we’d want our own family’s home inspected.
Schedule your well water test today.
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(207) 839-6595 for Maine and New Hampshire inspections
Focused Property Inspections — Veteran-Owned. Client-Focused. Detail-Driven.