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How to Sample Drinking Water and Understand the Results

Instructions to follow to obtain valid samples of drinking water to be tested for microbial contamination.

If flooding, loss of water pressure, or recurrent diarrhea in your family has you wondering whether your drinking water has become contaminated, follow these instructions

  • find a qualified lab to analyze your water sample
  • take a sample of your water that will give valid results, and
  • understand the results when you get the lab report.