Alcona County Well Water Testing
Private-well guidance for Alcona County, Michigan: USGS area-risk estimates for arsenic and nitrate, a recommended test panel, and how to get your own well tested at a Michigan-certified lab.
Alcona County groundwater risk (area estimates)
These are modeled USGS estimates for the county area — not a measurement of your specific well.
Arsenic
area estimate4%
modeled chance a well in this area exceeds 10 µg/L (the EPA limit).
11% chance of exceeding 5 µg/L.
Most-probable concentration category: <=5 ug/L.
Nitrate
area estimate0.42 mg/L
predicted nitrate (as N) for domestic-supply depth.
This estimate is below the 10 mg/L EPA limit, but individual wells can still exceed it.
Private wells
area estimate9,938
people on private wells in Alcona County.
Roughly 3,975 households, estimated from the USGS modeled domestic-supply population.
Area context
Additional state-only or optional layers for Alcona County, shown where the data exists.
Uranium
area estimateA state-only uranium model is not available for Michigan. See observed samples and test your own well to learn its uranium level.
Radon
area estimateA state-only radon model is not available for Michigan. See observed samples and test your own well to learn its radon level.
Agricultural land use
area contextAbout 1% of the Alcona County area is row-crop farmland (USDA Cropland Data Layer). Intensively farmed row-crop land raises the likelihood of elevated nitrate in nearby groundwater, so it is a reason to include nitrate in your test panel. This is land-use context for the county area — not a measurement of nitrate in any well.
These figures are USGS area estimates: statistical groundwater models describing how likely elevated contaminant levels are across a county. They are not designed to predict the concentration in any single well. Only testing your own well reveals its water quality.
Recommended test panel for Alcona County
- coliform
Coliform bacteria is recommended for every private well as the universal baseline test. The federal loan minimum (FHA, VA, USDA) tests for coliform, nitrate, nitrite, lead.
Federal FHA, VA, and USDA home loans require testing for coliform, nitrate, nitrite, lead at the point of a federally-backed loan. See the program-specific rules: FHA well test, VA well test, USDA well test.
Already have lab results? Interpret your well water test results to see how your own numbers compare to EPA limits.
How Alcona County compares across Michigan
Where Alcona County's modeled area estimates sit relative to the other Michigan counties in our analysis.
- Arsenicnear the Michigan median
Alcona County: 4% · Michigan median: 5% · flagged in 20 of 83 counties.
See all Michigan arsenic data → - Nitrateabove the Michigan median
Alcona County: 0.42 mg/L · Michigan median: 0.21 mg/L · flagged in 0 of 83 counties.
See all Michigan nitrate data →
Municipal (public) water in Alcona County
Most Alcona County residents are served by a public water system, not a private well. If that's you, open your city's tap-water quality report:
Prefer a Simpler Option?
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Standard Home Water Test
$232
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Advanced Home Water Test
$369
Most comprehensive home water test including all standard tests plus additional parameters for ultimate peace of mind.
Tap Score
Volatile Organic Compounds (VOC) Test
$139
Detects volatile organic compounds including industrial solvents, fuels, and chemical contaminants.
Find a state-certified lab
Test your Alcona County well through a lab certified by the Michigan Department of Environment, Great Lakes, and Energy.
Recognize & research well-water problems
Notice a problem? Diagnose it by symptom
Learn about these contaminants in drinking water
Data sources
Alcona County's estimates are modeled from public federal datasets. See the data & methodology for how we build, source, and validate them.
- USGS arsenic probability-of-exceedance model
- USGS nitrate predicted concentration, domestic-supply depth
- USGS domestic (private) well population density
- USDA NASS Cropland Data Layer (CDL) 30m
- EPA/USGS Water Quality Portal (waterqualitydata.us)
- US Census TIGER/Line county polygons
By TapWaterData Editorial · Last updated June 26, 2026.
Alcona County well water FAQ
How do I test my well water in Alcona County?
Order a sample kit covering the recommended panel for Alcona County (coliform), then send it to a Michigan-certified drinking-water laboratory. Certified labs use EPA-approved methods, so the results are defensible for a federally-backed home loan. You can also use a mail-in test kit for a convenient EPA-certified analysis.
What does the USGS arsenic estimate mean for my well?
It is an area estimate, not a prediction for your specific well. The USGS model describes how likely elevated arsenic is across Alcona County as a whole; an individual well in the county can be much higher or much lower. Only testing your own well reveals its actual arsenic level.
How often should a private well be tested?
The CDC recommends testing private wells at least once a year for total coliform bacteria and nitrate, and more often if you notice a change in taste, color, or odor, or after flooding or nearby construction.
Does Michigan require well testing?
Federal FHA, VA, and USDA home-loan programs require a private-well water test at the point of a federally-backed loan. A state sale, rental, or recurring testing mandate was not independently verified for this state — consult your state's program.
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