What do I do if bacteria are found in my well?

It is recommended to disinfect the well (PDF) by thoroughly chlorinating it and then applying for a re-testing once the chlorine is flushed out. In the meantime, do not use the water for drinking or cooking unless it is first boiled for one minute.

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1. Do I need to get a permit to drill a well or repair my existing well?
2. What inspections from the Health Department are required for my well?
3. What do I need to do to maintain my well?
4. When does a well need to be abandoned and why?
5. How can I test the quality of my private drinking water supply?
6. What is a bacteria test and what does it tell me?
7. What do I do if bacteria are found in my well?
8. What happens if the bacteria return after chlorination?
9. How often do I need to disinfect (chlorinate) my well?
10. How often should I have my well tested?
11. My well has a terrible rotten egg (sulfur) smell. What do I do?
12. I am having problems with the quality of my water (cloudy, red, black, or brown colored, green staining, etc). Where can I find help?
13. Do I need to get my water tested for pesticides or petroleum products (VOC)?