Laboratory technician determining water quality/ ©Adobe Stock
When you send in your water sample, the laboratory will perform various tests and analyses to determine the quality of your water. The specific procedures may vary depending on the lab, but all certified labs will follow a set of protocols to ensure accurate and reliable results.
Receiving the sample: The lab will receive your water sample and check it for any signs of contamination or damage to the sample. They will then label and document the sample to ensure proper identification throughout the testing process. It is important to follow guidelines and timeframes provided by the lab, or your sample may be rejected at this point.
NOTE: Some tests require that the sample be received within a certain amount of time. For instance, a sample being tested for coliform bacteria typically needs to be received within 24 hours after it was collected. If the sample is received outside of this time frame, it will be rejected as the results may not be accurate.
Testing the water quality: The lab will conduct a series of tests on the sample to assess its quality. These tests may include measuring pH levels, checking for the presence of bacteria or other microorganisms, and analyzing the levels of various contaminants such as heavy metals, pesticides, or nitrates.
The lab technicians will use specialized equipment and techniques to perform these tests accurately. They may use instruments like spectrophotometers, chromatographs, or microbial culture plates to analyze different aspects of the water sample.
Creating a report: Once the tests are completed, the lab will compile the results into a report that summarizes the findings of the tests. This report will typically include information on the specific parameters tested, the measured values, and any recommendations or actions that may be necessary based on the results.
Interpreting the results: Some labs may interpret the results based on established guidelines and standards. They may compare the results to regulatory limits or recommended levels for drinking water quality. This analysis will help determine if your water sample meets the required standards or if there are any potential issues with its quality. If the lab does not interprete the results for you, consult with your local health authority or see our advice here.
If you need help finding a certified lab near you, search the National Environmental Laboratory Accreditation Management System's website or reach out to us by calling 866-945-0699, emailing help@privatewellclass.org, or using the chat feature on the bottom right of this page.
Additional Resources:
What do I need to know about sampling my well water? PrivateWellClass.org
What information should I know before I test my well water? PrivateWellClass.org
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