Disinfection of open wells

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Due to heavy flood last season the open wells in our area got infected. The water is contaminated, can anyone suggest how to disinfect these open wells? The wells are old and 20-30 ft down the ground level. In some are the toilets are located very near to wells. Let me know if some more details of the site is required. 

3 Answers

  1. Hello Nathalie, Could you provide a general demographic/geographic description of the area? Also I would be useful to know how many wells are currently in the area, the distance (in feet/metres)of the toilets from the well in question. I look forward to your response. Tarik info@koomconsulting.org

  2. WHO guidelines

     

    Hello Nathalie,

    disinfection of wells could be very tedious job if contamination is very high. Some time it is better to dig new wells. first step should be to determine the type and level of contaminations. You can simply fallow the guidelines provided by WHO

    http://www.who.int/water_sanitation_health/publications/2011/tn1_cleaning_disinfecting_wells_en.pdf

  3. dear friend more details on the type of soil/rock formation in the area is needed,also pls tell me how the toilet refuse isdischarged, are they well constructed septic tanks or just soak pits in contact with water table?