Water Testing Labs in New Hampshire
We have not been able to read New Hampshire's certified-laboratory list into individual records.
No individual laboratories listed for New Hampshire
We have not been able to read New Hampshire's certified-laboratory list into individual records.
What we found: www4.des.state.nh.us refused the fetch with HTTP 403 (measured 2026-09-20).
New Hampshire Department of Environmental Services still certifies laboratories in New Hampshire. Go to its own directory for the current list — the testing guidance on this page applies either way.
How New Hampshire publishes it: Searchable online database—select "Drinking Water" parameters
Open the official New Hampshire directoryState Certification Program
New Hampshire Department of Environmental Services
Visit Certification Program Website💡 Local Resources & Tips
New Hampshire has robust well testing programs; state subsidizes arsenic testing in some areas—contact your local health department
How to choose one of these labs
- 1.Open the official directory above and shortlist two or three labs near you — 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 times—costs 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 — free. Educational only, no medical claims.
Your upload also helps us keep local water data accurate — we only ever share anonymized, area-level summaries.
Upload my testTesting Quick Facts
- •Annual minimum: Bacteria + nitrate ($150-$200)
- •Every 2-3 years: Comprehensive panel ($250-$400)
- •PFAS testing: Near risk sources ($300-$500)
- •Turnaround: 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.
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