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Cadmium is a soft, bluish-white metal similar to mercury and lead. Common sources of cadmium in water supplies include corrosion of galvanized pipes, discharge from metal refineries and runoff from discarded batteries and paint. It can also occur naturally. Long-term exposure can cause kidney, liver, bone and blood damage.
Is Cadmium in My Water Harmful?
Cadmium occurs naturally in some metallic ores and in very small amounts in some vegetables. Long-term exposure at higher levels can cause harm to kidneys, livers, bones and blood. Symptoms of cadmium poisoning include vomiting, nausea, diarrhea, muscle cramps, sensory disturbances, convulsions and shock.

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Takes under 5 minutes

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Expert Consultation
This is the right test for you if:
Cadmium often comes from inside the house. Galvanized pipes corrode with age and can release it, so an older home with galvanized plumbing is a common reason to test.
It can also wash in from discarded batteries and paint, discharge from metal refineries, or natural rock. Cadmium has turned up in the water of 42 states in recent years.
Order this test if any of these apply to you:
How this test works
What's in your kit
What this test screens for
Cadmium (Cd) is a soft, bluish-white metal related to zinc and often found alongside lead and zinc ores. We report it in parts per billion.
The EPA Maximum Contaminant Level is 5 ppb (0.005 mg/L). If you would rather screen many metals at once, cadmium appears on every Basic, Premium, and Ultimate panel.
Shipping & turnaround
This kit ships for $8, or free when your order is $100 or more. The prepaid label covers the return. Mail it whenever it suits you, since metals samples are stable in transit.
“The test was simple—collect a water sample from a faucet in the home. We sent the test to the lab and received a water quality analysis within a few days. The test included analysis of the water sample for the presence of: coliform bacteria, E. coli, iron, lead, pH, turbidity, and nitrates/nitrites.”
Taylor L.
“Incredible lab, they really care about their customers. As someone who doesn’t know a whole lot about water quality, they took their time to help me understand everything about my water quality situation.”
Brad R.
“I’ve used ETR for several tests, both water and air. The test kits are easy to understand and the reports are very comprehensive. But what really makes them stand out is their quality of service. There is a lot of terminology in these reports that I don’t understand, but their staff is very knowledgeable and always available to assist. They really take their time to review the results with you on the phone, and answer any questions you may have.”
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Common sources include corrosion of galvanized pipes, metal refinery discharge, and runoff from discarded batteries and paint. It can also come from natural deposits.
Long-term exposure can build up in the kidneys and has been linked to kidney, liver, bone, and blood damage. High exposure can cause vomiting, nausea, diarrhea, and muscle cramps.
The EPA Maximum Contaminant Level is 5 parts per billion for public water systems.
They can. Zinc coatings on galvanized pipe may contain cadmium as an impurity, and it can be released as the pipe corrodes.
Often, yes. Old plumbing that releases cadmium may release lead as well. Our Lead Water Test is $45, or the Basic Water Test covers both plus 51 other substances.
No shared results. Our laboratory holds our clients privacy to the highest regard, your results and information will never be shared. Be aware that state certified laboratories may be required to report your results to various government agencies.