Coliform Bacteria Testing At Home: The Do’s and The Don’ts

Health authorities strongly recommend annual coliform bacteria testing for private water wells as contamination can occur without any change in taste or odor to the water. Depending on your needs, there are many options available for coliform bacteria testing, ranging from testing yourself at home to EPA-certified, lab quality testing.

There are many ways that well water can become contaminated by coliform bacteria, so it is most important to test:

• Once a year for all private residential water wells
• After a new well has been constructed
• After recent work has been done on the well
• If you suspect or see any indication that contamination has occurred due to interaction with flood water

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