Well water in St. Wendel township, Minnesota
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Testing strongly recommended
tested well samples in St. Wendel township exceeded the EPA limit for nitrate (10 mg/L), based on public data from USGS Water Quality Portal.
743 test results across 11 contaminants from at least 42 wells, 1994 to 2025; lead has the most at 112. Data refreshed September 3, 2026.
Compiled by Nick at Well Water Nerd from public records. How these pages are built
What individual samples found
Each row summarizes every public sample for that contaminant inside St. Wendel township. Above limit means above the EPA maximum contaminant level; where EPA has no enforceable limit, the row shows a health guideline or nuisance level instead.
| Contaminant | Above limit | Samples | Detected | Median | Highest | Limit |
|---|---|---|---|---|---|---|
| Nitrate 1994 to 2007 | 31 | 74% | 7.79 | 23.7 | 10 mg/L EPA limit | |
| Arsenic 1994 to 2025 | 64 | 44% | 0 | 25 | 10 ug/L EPA limit | |
| Lead 1994 to 2025 | 112 | 14% | 0 | 49.5 | 15 ug/L EPA limit | |
| Copper 1994 to 2025 | 97 | 32% | 0 | 0.073 | 1.3 mg/L EPA limit | |
| Fluoride 1994 to 2025 | 36 | 64% | 0.135 | 1.03 | 4 mg/L EPA limit | |
| Chloride 1994 to 2025 | no limit | 108 | 100% | 39.5 | 184 | 250 mg/L nuisance level |
| Sodium 1994 to 2025 | no limit | 98 | 100% | 9.57 | 149 | 20 mg/L health guideline |
| Manganese 1994 to 2025 | no limit | 98 | 71% | 12.2 | 815 | 300 ug/L health guideline |
| Iron 1994 to 2025 | no limit | 95 | 71% | 24.6 | 21973 | 300 ug/L nuisance level |
Sampled fewer than 10 times, too few to summarize: PFOA (3), PFOS (1).
Over time
Share of samples above the limit by period. A cell needs ten samples to show; a comparison needs twenty in each period. Later periods sample fewer wells, and often the ones already known to have a problem.
| Contaminant | before 2000 | 2000s | 2010s | 2020s |
|---|---|---|---|---|
| Lead | 2%84 samples | 0%13 samples | n/a | n/a |
| Copper | 0%69 samples | 0%13 samples | n/a | n/a |
| Fluoride | 0%20 samples | 0%11 samples | n/a | n/a |
Closer than the town
See the sampled wells near your address
The same records, drawn around one point: which wells within a few miles were sampled and what they found, how deep the wells next to you were drilled, and any leaking tank or cleanup site within a mile.
Check my addressWhat this means
The contaminants most often above their limit here are nitrate (39% of 31 samples), arsenic (14% of 64 samples), and lead (2% of 112 samples). A well next door can differ sharply from yours because bedrock fractures, well depth and plumbing all matter, so these rates describe the area, not your tap.
Chloride, Manganese, and Iron are widespread in local groundwater. They are mainly a staining and taste problem, but high manganese also carries a health advisory for infants.
What to test for in St. Wendel township
- 1Nitrate39% of 31 local samples were above the limit.
- 2Arsenic14% of 64 local samples were above the limit.
- 3Lead2% of 112 local samples were above the limit.
- 4Coliform bacteriaRecommended for every private well, every year.
- 5PFOAAbove the limit in 3 of 3 local samples; too few to quote a rate.
- 6PFOSAbove the limit in 1 of 1 local samples; too few to quote a rate.
- 7ChlorideDetected in 100% of local samples.
- 8Volatile organic compounds (VOCs)4 leaking underground storage tank sites on record locally.
Test your St. Wendel township well for nitrate, arsenic and lead
Certified lab analysis of your own tap water, bottles and prepaid return shipping included. The Essential well panel covers arsenic, uranium, nitrate, lead, copper, manganese, iron, sodium and bacteria; radon and PFAS are add-ons.
Order the Tap Score well water test kit, from $209Already tested? Upload the report
Just want bacteria checked first? Tap Score coliform and E. coli test, $99. Coliform and E. coli are the tests every well needs every year.
Want a quick look before paying for a lab? Home well water test strips on Amazon check hardness, iron, pH and nitrate in minutes. They are a screen, not a result: arsenic, bacteria, uranium and PFAS need a certified lab.
Affiliate links: the merchant pays us a commission and the price is the same for you. It does not change what the data above says. As an Amazon Associate we earn from qualifying purchases.
Where to get a well tested in Minnesota: certified labs, state programs and prices.
Already have results back? Get your lab report read against the St. Wendel township numbers, $29. Every line explained, ranked by what matters, with the fix for each.
Wells in St. Wendel township
200 domestic wells in St. Wendel township are on record with the state since 1948. 15% are drilled into bedrock, and the typical well is 73 feet deep (one in ten goes past 145 feet).
In a typical St. Wendel township well, bedrock starts about 72 feet down.
Find your own well's report
The state keeps the driller's report for most wells drilled since 1984. It tells you how deep your well is, where bedrock starts, and how much water it makes, which decides what treatment can work.
- Open Minnesota Well Index and choose Water Well.
- The record shows depth, casing, depth to bedrock, aquifer, static water level and the driller; new wells since 2008 also show the arsenic test result.
Wells drilled since 1974 have records; older wells appear only if a later owner reported them.
The rock under St. Wendel township
Lower Cretaceous aquifers
Sandstone. Sandstone wells draw from pore space in the rock and tend to be dependable. Iron, manganese and hardness are common, and some sandstones carry arsenic or radium, so a first test should include both.
Classification from the USGS Principal Aquifers of the United States (national map, 2003 edition, GIS release 2015), read at the town centroid. A single well can sit in a different unit, especially near a boundary.
Official help in Minnesota
Two places to start that are not selling anything: the state program that answers private well questions, and its list of labs certified to run drinking water tests. A certified lab is the difference between a result you can act on and a number.
- Wells and Borings, Minnesota Department of Health
- Accredited Laboratories as Well Partners, Minnesota Department of Health
Contamination sources on record in St. Wendel township
MPCA records 4 leaking underground storage tank sites in St. Wendel township, among 21 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.
- 4
- leaking underground storage tank sitesGasoline and heating oil that leaked from tanks move through groundwater as benzene, MTBE and other volatile organic compounds.
- 14
- registered underground storage tank sitesRegistered tanks are regulated and inspected; they matter most when they are old or near a shallow well.
- 2
- lined landfills and transfer facilities
- 1
- other remediation project
Treatment that fits the local profile
Nitrate
Point-of-use reverse osmosis; Anion exchange; Distillation
Arsenic
Point-of-use reverse osmosis; Adsorptive media (iron-based) whole-house; Anion exchange
Lead
Point-of-use reverse osmosis; Certified lead-removal carbon filter; Neutralizing filter to raise pH and stop leaching
Manganese
Oxidizing filter (greensand, birm) whole-house; Water softener (low levels); Point-of-use reverse osmosis
Iron
Oxidizing filter whole-house; Water softener (low levels); Aeration plus filtration
Systems we would look at first
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For nitrate
Under-sink reverse osmosis system
under-sink or countertop, about $300
Look for NSF/ANSI 58 certification listing the contaminant you need removed.
For nitrate
Aquasana SmartFlow reverse osmosis
under-sink or countertop, about $225
Certified to NSF/ANSI 58 and 53 to reduce arsenic (96%, pentavalent), fluoride (90%), lead (99%), nitrate, nitrite and PFOA/PFOS at the kitchen tap, with a remineralizer.
For arsenic
Whole-house arsenic and uranium filter
whole-house, at the point of entry, about $2,500
Adsorptive iron-based media; sized to your well yield.
For lead
Aquasana Claryum 3-Stage under-sink filter
under-sink or countertop, about $175
Certified to NSF/ANSI 53 to reduce 99% of lead and 99.7% of PFOA and PFOS at the tap. Not a fix for arsenic, nitrate or bacteria.
For lead
Acid neutralizing filter
whole-house, at the point of entry, about $1,200
Raises pH so plumbing stops leaching lead and copper.
For manganese
Iron and manganese oxidizing filter
whole-house, at the point of entry, about $1,800
Air-injection or greensand media; fixes staining at the source.
Free, no obligation
Get on the list for a free in-home water test in St. Wendel township
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Common questions
How deep are wells in St. Wendel township?
The typical domestic well in St. Wendel township is 73 feet deep, based on 200 wells reported to the state since 1948. One in ten is deeper than 145 feet. 15% are drilled into bedrock.
Is there arsenic in well water in St. Wendel township?
Arsenic was detected in 44% of 64 public well samples in St. Wendel township, and 14% were above the EPA limit of 10 ug/L. Arsenic has no taste or smell; a lab test is the only way to know your level.
How often should I test a private well in St. Wendel township?
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.
Towns near St. Wendel township
Closest first. Groundwater does not stop at a line on a map, so the next town over is a fair second opinion.
Want the numbers themselves? Download the Minnesota dataset as CSV, every county and town, with the sources named.
Sources
- USGS Water Quality Portal: 743 samples in St. Wendel township. Data from the Water Quality Portal, a service of USGS, EPA and USDA; groundwater samples collected by USGS and cooperators. Retrieved September 3, 2026.
- Minnesota Well Index: 226 well records in St. Wendel township, 200 domestic. Well construction records from the Minnesota Well Index (Minnesota Department of Health), non-public-supply wells. Only aggregates are shown; owner names and addresses are never stored. Retrieved September 15, 2026.
- MPCA regulated sites: 21 regulated sites located in St. Wendel township. Tank, leak, remediation, Superfund and landfill sites from the Minnesota Pollution Control Agency What's In My Neighborhood database. Retrieved September 15, 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.