If you saw a positive coliforms result, it indicates that there is potential for pathogens to be in your water. Confirm the result. Reach out to a local certified lab and/or your local health department to have a sample professionally tested.
In the meantime, boiling the water or using bottled water is advised until the result is confirmed or the source of contamination has been eliminated.
FIX THE PROBLEM WITH THE WELL
There are many reasons that coliforms may be present in a well. Your local state, provincial, and Ground Water Association websites are great places for guidance on proper well maintenance.
CONSIDER CONTINUOUS DISINFECTION
More frequent water testing will allow you to monitor the risk of pathogens being present and provide reassurance. Continuous disinfection provides additional peace of mind knowing that your water is treated with a proven treatment technique!
One leading treatment option is ultraviolet (UV) disinfection. UV disinfection equipment can address bacteria and a range of other microorganisms – including some chlorine-resistant pathogens like Cryptosporidium and Giardia. And UV disinfection equipment does not use chemicals.
In most cases, UV will disinfect without changing the taste or odour of your water. A water treatment professional can help determine the right UV system for you.
* Information from Viqua's Water Test Book. View Resources Here.