Water testing in Idaho
Lowest price: $10, Southwest District Health (SWDH).
Southwest District Health Private Water Program
$10
- Lead
Collect your own water sample and drop it off at an SWDH office before the Wednesday courier cutoff for delivery to the Idaho Bureau of Laboratories, or deliver the sample directly to the State Lab in Boise.
Residents of SWDH's six-county service area; courier service for self-collected samples runs Wednesdays only, with drop-off cutoff times at the Payette, Emmett, and Caldwell offices.
- Southwest District Health, 13307 Miami Lane, Caldwell · 208-455-5400
Checked October 1, 2026. Report a change
Central District Health Private Well and Mortgage Survey Water Testing
$145
- Bacteria
- Fluoride
- Nitrate
- Arsenic
Submit an application through CDH's online Accela permitting portal to schedule a water sample collection visit; lab fees apply per contaminant tested.
Private well and septic system owners in Ada, Boise, Elmore and Valley counties; CDH does not provide take-home test kits.
- Central District Health, 707 North Armstrong Place, Boise · (208) 375-5211
Checked October 1, 2026. Report a change
University of Idaho Analytical Sciences Laboratory Water Testing
Call for price
- pH
- Nitrate
- Fluoride
- Sulfate
- Chloride
- +5 more
Mail or deliver a water sample with a completed sample submission form and payment to the ASL at the Holm Research Center in Moscow, selecting tests from the water analysis price list.
- Analytical Sciences Laboratory, Holm Research Center, 2222 West 6th Street, Moscow · 208-885-7466
Checked October 1, 2026. Report a change
Idaho Free Private Well Water Testing Program
Free
- Nitrate
- Fluoride
- Arsenic
- Lead
- Uranium
- +8 more
Sign up through the Idaho Health Tools online store to request a free test kit mailed to your home; a representative follows up with next steps.
Idaho residents with a private well only; one test kit per household every five years; materials not shipped outside Idaho; participants agree to share results (without name/address) on the Idaho Ground Water Near Me map.
Checked October 1, 2026. Report a change