Well water in Norway, Maine
In Norway, 8% of 63 private wells tested had uranium above the Maine guideline (30 ug/L), according to Maine CDC.
98 private wells tested in state summaries; 1 individual samples from 1 wells, 1964 to 2025. Data refreshed September 3, 2026.
Maine DEP samples private wells near fields where sludge or septage was spread and near other known PFAS sources, and resamples detections. PFAS shares describe wells that were tested for a reason, not every well in the area.
What homeowner tests found
Maine Tracking Network private well summaries: private wells tested and reported to the state. Shares are against the level the state applies to each contaminant, named in the last column; several are stricter than EPA.
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What this means
Among homeowners in Norway who sent a sample to the state lab, the health-based limits most often exceeded were uranium (8% of 63 wells), arsenic (5% of 67 wells), and fluoride (3% of 98 wells). These are ordinary wells tested by their owners, so the shares are the best available picture of a typical well here, with one caveat: people test more often when they suspect a problem.
What to test for in Norway
- PFAS1 unlined landfill on record locally.
- Volatile organic compounds (VOCs)1 unlined landfill on record locally.
- Metals panel5 hazardous waste sites on record locally.
- Uranium8% of 63 local wells tested were above the Maine guideline.
- Arsenic5% of 67 local wells tested were above the Maine guideline.
- Fluoride3% of 98 local wells tested were above the Maine guideline.
- Manganese2% of 64 local wells tested were above the Maine guideline.
- Coliform bacteriaRecommended for every private well, every year.
- ChlorideDetected in 100% of local samples.
- NitrateRecommended for every private well, especially near farms or septic systems.
Wells in Norway
432 domestic wells in Norway are on record with the state since 1985. 99% are drilled into bedrock, and the typical well is 400 feet deep (one in ten goes past 600 feet).
In a typical Norway well, bedrock starts about 22 feet down, the median yield is 5 gallons per minute, 28% of wells yield under 3 gallons per minute and usually need a storage tank.
Bedrock wells are where arsenic, uranium and radon come from: the water sits in fractures in granite and metamorphic rock and picks up whatever the rock carries. That is why testing for those three matters more here than in a dug or gravel well.
Contamination sources on record in Norway
Maine DEP records 1 unlined landfill and 5 hazardous waste sites in Norway, among 16 regulated sites in total. Groundwater does not follow property lines, so a well within a few hundred feet of one of these is worth testing for what that site could release.
- 1
- unlined landfillOlder unlined landfills are a leading source of PFAS, VOCs and metals in nearby wells.
- 5
- hazardous waste sitesSolvents, degreasers and metals from industrial sites can travel far in fractured bedrock.
- 10
- other remediation projects
Treatment that fits the local profile
- Uranium
- Point-of-use reverse osmosis; Anion exchange; Whole-house anion exchange
- Manganese
- Oxidizing filter (greensand, birm) whole-house; Water softener (low levels); Point-of-use reverse osmosis
- Chloride
- Point-of-use reverse osmosis; Distillation
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Common questions
How deep are wells in Norway?
The typical domestic well in Norway is 400 feet deep, based on 432 wells reported to the state since 1985. One in ten is deeper than 600 feet. 99% are drilled into bedrock.
How often should I test a private well in Norway?
Test for bacteria and nitrate every year. Test once for arsenic, uranium, radon, fluoride, manganese and PFAS, then again every three to five years or after any change in taste, color, or plumbing.
Sources
- USGS Water Quality Portal: 4 samples in Norway. Data from the Water Quality Portal, a service of USGS, EPA and USDA; groundwater samples collected by USGS and cooperators. Retrieved September 3, 2026.
- Maine DEP PFAS investigation: 4 samples in Norway. PFAS results for private wells sampled by the Maine Department of Environmental Protection. Retrieved September 3, 2026.
- Maine Tracking Network private well summaries: summaries for 6 contaminants in Norway, up to 98 wells each. Town summaries of private well tests run by the Maine Health and Environmental Testing Laboratory, published by Maine CDC through the Maine Tracking Network. Shares are against Maine's guideline for each analyte (arsenic 10 ug/L, uranium 30 ug/L, fluoride 2 mg/L, manganese 0.3 mg/L, nitrate 10 mg/L, nitrite 1 mg/L). Towns with too few tests are suppressed (NR). Only the share above the guideline and wells tested are published; no medians. Retrieved September 3, 2026.
- Maine Geological Survey well database: 433 well records in Norway, 432 domestic. Well construction records reported to the Maine Geological Survey by licensed well drillers. Only aggregates are shown; owner names and addresses are never stored. Retrieved September 3, 2026.
- Maine DEP regulated sites: 16 regulated sites located in Norway. Remediation sites, leaking underground storage tanks and closed municipal landfills from the Maine Department of Environmental Protection. Retrieved September 3, 2026.
Non-detects count as samples and are treated as zero when computing medians. Exactly at the limit counts as not above it. A sample belongs to the town containing the well's reported coordinates.