Is Winthrop, ME tap water safe?
The short answer
1 of the 3 utilities serving Winthrop has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: Squire Court LLC.
Winthrop Utilities District, which serves the most people here, has 1 result above the health goal. The worst: Lead at 1.7 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Winthrop’s ZIP codes, from EPA’s estimates.
- Open report
Winthrop Utilities District
Maine · serves 2,750 people · about 400 in Winthrop
1 result above the health goal. The worst: Lead at 1.7 ppb, above the health goal.
No health-based violations since 2016
- Open report
Greater Augusta Utility District
Maine · serves 13,750 people · about 120 in Winthrop
3 results above the health goal. The worst: Arsenic at 3.6 ppb, above the health goal.
No health-based violations since 2016
- Open report
Squire Court LLC
Maine · serves 75 people · under 100 in Winthrop
2 results above the health goal. The worst: Arsenic at 4.7 ppb, above the health goal.
1 health-based violation since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Winthrop Utilities District’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Brita Tahoe Pitcher with Elite Filter (OB60, OB06)
Pitcher
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 13, 2026
- IAPMO listing:NSF/ANSI 53checked Oct. 13, 2026
Certified for: Lead
Brita Everyday Pitcher with Elite Filter (OB46, OB06)
Pitcher
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 13, 2026
Certified for: Lead
PUR PLUS 11-Cup Pitcher (PPT111W)
Pitcher
- NSF listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 4, 2026
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 4, 2026
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 4, 2026
Certified for: Lead
Water testing near Winthrop
The 3 labs Maine certifies closest to Winthrop, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Health and Environmental Testing Laboratory
Augusta, ME · about 11 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS, radioactivity
(207) 287-2727Website: Health and Environmental Testing Laboratory
Eurofins Auburn
Auburn, ME · about 21 miles
Certified for bacteria, nitrate, minerals and other inorganics
NELAnalytical
Winslow, ME · about 25 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, radioactivity
Maine Health and Environmental Testing Laboratory: Well water test kits ordered online, from a bacteria-only test to full panels for new wells and home sales. The lab must receive the sample within 30 hours of collection. The basic safety test is $42, bacteria alone $27, first-draw lead $32, and the fuller well tests $127 to $147. Maine Private Well and Radiological Water and Air Test.
All 53 certified labs for MaineZIP codes in Winthrop
Which ZIP codes are in Winthrop: 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: Maine CDC Drinking Water Program, all accredited laboratories and in-state commercial drinking water labs; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Winthrop
Other towns in Kennebec County with a page of their own.
What to do next
- Read Winthrop Utilities District’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for LeadRanked by certification and what they cost over five years.The best water filters for lead, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water