Here is more information on testing your water for Radon
Radon in Water Testing Information
The Nevada Division of Public and Behavioral Health has found no evidence that radon
in water contributes significantly to the indoor radon problem in Nevada. Therefore,
University of Nevada Cooperative Extension’s Nevada Radon Education Program does
not offer radon test kits for water. The major health concern for radon is from breathing
elevated levels of radon in the air, which can cause lung cancer.
Although there is a slight risk associated with ingesting water containing elevated levels
of radon, the primary concern is the release of radon from normal water use into indoor
air (off‐gassing). However, if a house has a radon problem, it is more likely caused by
radon entering the house from the soil below, rather than off‐gassing from the water
supply. Thus, test the home for radon in the air before considering a radon in water
Generally, homes with private wells are more apt to have a radon concern than homes
on public water systems. If you are interested in testing your water, test kits are
available from several sources.
The Nevada State Public Health Laboratory (NSPHL), located on the north end of the
UNR campus, will send water samples for radon analysis to an EPA approved lab for
about $81. (See attached information for radon in water testing offered by NSPHL.) For
information and current pricing, call NSPHL at 775‐688‐1335. The lab also offers water
testing for fluoride, nitrates, arsenic and volatile organic compounds.
The Nevada Radon website, www.RadonNV.com
also offers a Resources/Links section
for Radon Supply Companies. The following chart lists companies that specifically offer
radon in water kits, along with the price, website page, and the company’s phone
Company Price of
test kit Website page for radon in water kit Phone
Radon Testing Corporation
The University of Nevada, Reno is an Equal Employment Opportunity/Affirmative Action
employer and does not discriminate on the basis of race, color, religion, sex, age, creed,
national origin, veteran status, physical or mental disability, or sexual orientation in any
program or activity it operates. The University of Nevada employs only United States
citizens and aliens lawfully authorized to work in the United States.
This publication is supported by the Nevada State Division of Public and Behavioral
Health through Grant Number K1-96963517-0 from the U.S. Environmental Protection
Agency. Its contents are solely the responsibility of the authors and do not represent the
official views of neither the Division nor the U.S. Environmental Protection Agency.
RADON in WATER SAMPLING INSTRUCTIONS
University of Nevada School of Medicine
Nevada State Public Health Laboratory
1660 N. Virginia St., Reno, NV 89503
Radon in Water sampling instructions were obtained from page 19 of the University of Nevada’s School of
Medicine, Nevada State Public Health Laboratory Chemistry Directory of Services found in the Environmental
Analysis section of the website at:
The Nevada State Public Health Laboratory (NSPHL) will accept radon in water tests and will send them
to an EPA approved lab to analyze. The cost for analysis is around $81.
Call NSPHL for a Radon in Water test kit that includes:
1. A Nevada State Health Lab request form.
2. Two small 40 ml amber vials for each source.
Instructions for testing radon in water include the following:
1. **DO NOT COLLECT WATER FOR A RADON TEST ON A FRIDAY AS THE WATER SAMPLE MUST
BE RETURNED TO THE LAB WITHIN 24 HOURS OF COLLECTION.
2. Brand new wells need to run for a minimum of 24 hours at a reasonable flow. Wells that have been used
consistently for a while need to run a minimum of 4 hours at a slow flow. In either case, route the water
outside to avoid filling your septic tank.
3. Slightly overfill the vials so that you visibly see a dome at the top of the vial. When the cap is screwed
on it will squeeze out the excess sample and prevent air bubbles from forming in the vials.
4. Screw the cap on each vial.
5. With one hand hold the vial upside down and tap it lightly on your other hand. If air bubbles surface,
then uncap the vial and add more water. (The sample will not be analyzed if there are air bubbles in
6. Place the vials on ice for transport to the laboratory. Make sure that enough ice is used to ensure that the
samples will be cool until they arrive at the laboratory.
Reasons for potential sample rejection include, but are not limited to:
Improperly preserved samples, i.e. wrong pH, too hot, wrong or missing
Leaking sample bottles
Insufficient sample volume submitted for requested analysis
Incomplete/missing/or incorrectly filled out paper work
Sample labels missing or indecipherable
Expired or soon to expire holding times