Well water in St. Albans, Vermont
In St. Albans, <1% of 210 private wells tested had arsenic above the Vermont limit (10 ug/L), according to the Vermont Department of Health.
319 private wells tested in state summaries. Data refreshed .
What homeowner tests found
Vermont Tracking 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.
| Contaminant | Wells tested | Above state level | Median | 95th pct | Highest | State level | |
|---|---|---|---|---|---|---|---|
| Gross alpha Gross Alpha | 146 | <1% | 1.7 | 7.3 | 20.9 | 15 pCi/L | |
| Arsenic | 210 | <1% | * | 3 | 15 | 10 ug/L | |
| Nitrate | 319 | <1% | 0.22 | 1.75 | 14 | 10 mg/L | |
| Fluoride | 244 | 0% | 0.15 | 0.995 | 2.6 | 4 mg/L | |
| Uranium | 205 | 0% | * | 3 | 23 | 20 ug/L |
* suppressed by the publisher because too few wells were tested.
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What this means
Among homeowners in St. Albans who sent a sample to the state lab, the health-based limits most often exceeded were arsenic (<1% of 210 wells) and nitrate (<1% of 319 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 St. Albans
- Volatile organic compounds (VOCs)31 leaking underground storage tank sites on record locally.
- Metals panel11 hazardous waste sites on record locally.
- Gross alpha<1% of 146 local wells tested were above the Vermont limit.
- Arsenic<1% of 210 local wells tested were above the Vermont limit.
- Nitrate<1% of 319 local wells tested were above the Vermont limit.
- Coliform bacteriaRecommended for every private well, every year.
Wells in St. Albans
433 domestic wells in St. Albans are on record with the state since 1975. 99% are drilled into bedrock, and the typical well is 350 feet deep (one in ten goes past 521 feet).
In a typical St. Albans well, bedrock starts about 13 feet down, the median yield is 4.5 gallons per minute, 33% 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 St. Albans
Vermont ANR records 31 leaking underground storage tank sites and 11 hazardous waste sites in St. Albans, among 58 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.
- 31
- leaking underground storage tank sitesGasoline and heating oil that leaked from tanks move through groundwater as benzene, MTBE and other volatile organic compounds.
- 11
- hazardous waste sitesSolvents, degreasers and metals from industrial sites can travel far in fractured bedrock.
- 16
- registered underground storage tank sitesRegistered tanks are regulated and inspected; they matter most when they are old or near a shallow well.
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Common questions
How deep are wells in St. Albans?
The typical domestic well in St. Albans is 350 feet deep, based on 433 wells reported to the state since 1975. One in ten is deeper than 521 feet. 99% are drilled into bedrock.
How often should I test a private well in St. Albans?
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
- Vermont Tracking private well summaries: summaries for 5 contaminants in St. Albans, up to 319 wells each. Town summaries of private well tests reported to the Vermont Department of Health, published through Vermont Environmental Public Health Tracking. Shares are against the limit Vermont applies to each analyte: arsenic 10 ug/L, uranium 20 ug/L (stricter than EPA), fluoride 4 mg/L, nitrate 10 mg/L, gross alpha 15 pCi/L, radon 4,000 pCi/L advisory. Only towns with 20 or more results are published; statistics below the reporting limit show as *. Retrieved September 3, 2026.
- Vermont ANR well completion reports: 456 well records in St. Albans, 433 domestic. Well completion reports filed with the Vermont Agency of Natural Resources since 1966. Only aggregates are shown; owner names and addresses are never stored. Retrieved September 3, 2026.
- Vermont ANR regulated sites: 58 regulated sites located in St. Albans. Hazardous waste sites, landfills and underground storage tanks from the Vermont Agency of Natural Resources. 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.