Is Littleton Common, MA tap water safe?
The short answer
Littleton Water Department serves Littleton Common. In EPA’s and Massachusetts’s records it has 1 result above the health goal, and no health-based violation since 2016.
The worst: Arsenic at 2.2 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
The water from Littleton Water Department is soft to moderately hard depending on the source, 32 to 88 mg/L (1.9 to 5.1 grains per gallon). How Massachusetts’s water compares.
Some homes in a town are on private wells or a small system of their own. The name on your water bill tells you which is yours.
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Littleton Water Department’s water.
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Countertop reverse osmosis
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 4, 2026
Certified for: Arsenic
Aquasana SmartFlow Reverse Osmosis (AQ-SFRO2)
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Arsenic
Brondell Capella RC250 Reverse Osmosis System
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Arsenic
Water testing near Littleton Common
The 3 labs Massachusetts certifies closest to Littleton Common, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Eurofins Ayer
Ayer, MA · about 4 miles
Certified for bacteria, nitrate, minerals and other inorganics
Pace Analytical LLC-Westborough
Westborough, MA · about 20 miles
Certified for bacteria, nitrate, minerals and other inorganics
Eurofins-Worcester
Worcester, MA · about 22 miles
Certified for bacteria
ZIP codes in Littleton Common
Which ZIP codes are in Littleton Common: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: MassDEP Online Searchable Laboratory Certification Listing, potable water; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Littleton Common
Other towns in Middlesex County with a page of their own.
What to do next
- Read Littleton Water Department’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for ArsenicRanked by certification and what they cost over five years.The best reverse osmosis systems, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water