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Dear Forms Committee: What are the seller’s obligations regarding well testing?

If a property being sold or exchanged has (on the property or through an easement) a well that supplies groundwater for domestic purposes, Oregon law requires the seller to have the well tested for arsenic, nitrate, and total coliform bacteria. The seller must submit the results of the tests to the Oregon Health Authority and the buyer within 90 days of receiving the test results. Test results are valid for one year and can be used for multiple transactions within that 1-year time frame.  The testing cannot be waived.


For more information, visit the Oregon Health Authorities website.


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