How often should I test my well water?
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We recommend testing at least once a year for bacteria and nitrates. Test more often if your well is old, after flooding, nearby construction, or if you notice changes in taste, color, or odor.
What if I’m on city water—do I still need to test?
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City water is regularly tested and you should be able to request/view the testing that shows it meets federal and state safety standards.
However, contaminants like lead can enter from old plumbing inside your home.
Testing your tap once—especially in older homes—provides extra peace of mind.
Consider a certified kit like Tap Score for an easy option.
Where can I get my water tested locally?
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• Johnson County: Well Testing Program
• Linn County: Laboratory Services
• Iowa County: Contact your local public health department.
For more comprehensive testing, consider a certified at‑home kit like Tap Score.
• Linn County: Laboratory Services
• Iowa County: Contact your local public health department.
For more comprehensive testing, consider a certified at‑home kit like Tap Score.
Can I test for lead and other contaminants at home?
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Yes. At‑home kits like Tap Score let you collect a sample and receive a lab‑certified report online, covering lead, nitrates, bacteria, and more.
What are the signs that my water might be unsafe?
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Signs can include strange odors, cloudy water, staining on fixtures, or sudden changes in taste.
However, many contaminants like nitrates and lead have no taste, color, or smell, so regular testing is the only way to know.
What if my water test comes back unsafe?
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Stop using the water for drinking and cooking immediately.
Contact your local public health department for guidance.
Use bottled or filtered water until the problem is resolved.
How can I get extra peace of mind about my water?
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Even if your water is safe today, regular annual testing and occasional comprehensive testing provide the best peace of mind.
A certified home test kit like Tap Score makes this easy, with lab results delivered to your email.