Water Testing Labs in Montana
We have not been able to read Montana's certified-laboratory list into individual records.
No individual laboratories listed for Montana
We have not been able to read Montana's certified-laboratory list into individual records.
What we found: The only document linked (Certified_Labs.pdf) is a 2023 letter to laboratories about method protocols and contains no laboratory list.
Montana Department of Public Health & Human Services still certifies laboratories in Montana. Go to its own directory for the current list โ the testing guidance on this page applies either way.
How Montana publishes it: Interactive drop-down menus by certification type
Open the official Montana directoryState Certification Program
Montana Department of Public Health & Human Services
Visit Certification Program Website๐ก Local Resources & Tips
Montana Public Health Laboratory provides comprehensive testing; check with local health departments for subsidized testing options
How to choose one of these labs
- 1.Open the official directory above and shortlist two or three labs near you โ most drinking-water samples must reach the lab within 24-30 hours of collection
- 2.Verify certifications: confirm the lab holds current state certification for the specific contaminants you want to test (bacteria, nitrate, metals, VOCs, PFAS). Certification is per-analyte, and a certificate number on this page is a starting point, not a guarantee it is still current
- 3.Request pricing: call multiple labs to compare prices and turnaround timesโcosts vary significantly even within the same state
- 4.Schedule testing: follow lab instructions for sample collection, storage, and delivery
- 5.Review results: compare detected concentrations against EPA standards and take appropriate action
Got a water test back? Get a free reading of every number
Upload your tap water report (PDF or a photo) and we'll email you a plain-English explanation of each contaminant and level โ free. Educational only, no medical claims.
Your upload also helps us keep local water data accurate โ we only ever share anonymized, area-level summaries.
Upload my testTesting Quick Facts
- โขAnnual minimum: Bacteria + nitrate ($150-$200)
- โขEvery 2-3 years: Comprehensive panel ($250-$400)
- โขPFAS testing: Near risk sources ($300-$500)
- โขTurnaround: 24-48 hrs (bacteria), 5-10 days (comprehensive)
Prefer a Simpler Option?
Can't find a convenient local lab? Mail-in testing offers EPA-certified analysis without appointments or travel.

SimpleLab
Advanced Home Water Test
$269
Comprehensive water analysis testing over 200 contaminants including bacteria, heavy metals, and chemical compounds.

Tap Score
Volatile Organic Compounds (VOC) Test
$139
Detects volatile organic compounds including industrial solvents, fuels, and chemical contaminants.
Get the Weekly Water Brief
One email a week on water testing, treatment, and what water-quality data means for your home.
One email a week. Unsubscribe anytime.