Approximate Amount of Bleach for Disinfection of a Drilled or Driven Well (Metric)
Depth of Water  Diameter of Well Casing  

5 cm  10 cm  15 cm  20 cm  25 cm  0.6 m  0.9 m  
3 m  12 mL  48 mL  118 mL  177 mL  296 mL  1.66 L  3.78 L 
6 m  24 mL  96 mL  236 mL  354 mL  592 mL  3.32 L  7.56 L 
9 m  36 mL  144 mL  354 mL  531 mL  888 mL  4.98 L  11.34 L 
12 m  48 mL  192 mL  472 mL  708 mL  1.18 L  6.64 L  15.12 L 
15 m  60 mL  240 mL  590 mL  885 mL  1.48 L  8.30 L  18.90 L 
30 m  120 mL  480 mL  1.18 L  1.77 L  2.96 L  16.60 L  37.80 L 
Notes:


Key:

For information in United States measurements, please see Table 2. Approximate Amount of Bleach for Disinfection of a Drilled or Driven Well.