In light of the recent natural disaster that hit southern Asia, the National Ground Water Association has developed an emergency well disinfection guide. The guide is a very simplified procedure designed for people who have no expertise with wells. Also, it can be applied to drilled wells or shallow dug wells. Understanding the utter devastation and chaos in the affected areas, the association's goal is to provide as easy a disinfection guide as possible.
This advisory is designed for the treatment of wells under emergency conditions with limited equipment. Do not overtreat wells with excessive chlorine. Be sure to leave the chlorine solution in the well for at least six hours. Any circulation of the chlorinated water in the wellbore or well hole will improve disinfection.