The Lab
The Lab is where Boston Water Group publishes what it finds: a water report for every town we cover, every substance on the public record, each one beside the legal limit it is measured against, with the document it came from and the date it was taken.
Why we publish this ↓Our mission
Trust relies on transparency
Healthier homes and towns
Better information, better decisions — house by house and town by town.
Education first
Advice-forward and education-driven, for the people who live and work in our neighborhoods.
Transparent results
Only as trustworthy as the record behind it, so every figure sits beside its limit and links to its document.
Anonymous by default
A private test loses its address before any of it is published.
Open to everyone
Free to read, free to reuse, and never one town at a time. No records request, no paywall.
What we publish
Research, insights, and other interesting tidbitsResearch, insights, and news
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01
Town water reports
One report per town: every substance on the public record, what it does to you and to your home, what removes it, and which document each figure came from.
- 70 published
- 24 over a level
- 22 close to one
- 24 well under
- 1,984 readings
70Published
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02
Research & thought leadership
How PFAS treatment actually performs, what a softener does and does not fix, and what the 2031 federal limits will mean for South Shore towns.
In preparation
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03
News & blogs
What we find in real houses, what changes at the State House, and what either means for the water coming out of your tap.
In preparation
Record last checked September 2026
The water where you live
We know the water here.We know the water here.
Every water test conducted is anonymized and published for the benefit of the community, including the individuals, families, and businesses that call it home.
Zoom in for every town