How to Disinfect your Well

WELL DISINFECTION PROCEDURE: – Plan on it taking 24 to 48 hours for this procedure.
1)Thoroughly mix about 2 quarts of unscented chlorine
bleach with about 4.5 gallons of clean water. Use1 gallon of
bleach for wells over 100 feet deep.
2) Remove the well cap or sanitary seal and pour
the bleach solution directly into the well.
3) Connect a water hose to the closest  facet and run water through it until there is a strong odor of bleach.
4) Using the hose , flush the inside of the well casing or the interior walls of a dug well. Wash the well cap clean. Close the well cap, wait about  1 to 2 hours prior to continuing  to Step 5.
5)Run water through each faucet inside and outside the home until there is an odor of bleach. As soon as you smell
the  bleach from a tap, turn it off and go to the next one. If you cannot smell bleach, repeat steps 1 through 4.
6)Let the water stand in the pipes for 8 to 10 hours hours or
more best would be  overnight.
7)Flush the bleach from the well. Remember chlorine is toxic to plants and grass, so try to drain it away from your lawn or septic system.  Flush the system until you can no longer smell the bleach. This usually takes up to 4 hours. If your well might be pumped dry by doing this, then you should pump in stages. For example, pump for 30 to 60 minutes, wait for the well to recharge, and repeat.
8)Open all other indoor and outdoor faucets and run until they are clear of bleach (until odor is gone).
Note: adding
bleach to your water creates hypochlorous acid, which may dissolve rust and other sediments in the pipes. Do not be
alarmed if the water is discolored and has sediment. This will usually disappear in a few days.
9) When there is no longer any bleach odor in your water Contact to come out to take another sample to present to the Lab