The following information is not related to the Sherwood Medical Site and is provided for general public knowledge.

Drilled Wells

1. Determine the amount of water in the well by multiplying the gallons per foot by the depth of the well in feet. (for example - a well with a 6-inch diameter contains 1.5 gallons of water per foot. If the well is 120 feet deep, multiply.
   1.5 x 120 = 180 gallons
2. For each 100 gallons of water in the well, use the amount of chlorine indicated in chart 1 below. Mix the chlorine in about 10 gallons of water.
3. Pour the solution into the top of the well before the seal is installed.
4. Connect a hose from a faucet on the discharge side of the pressure tank to the well casing top. Start the pump. Spray the water back into the well and wash the sides of the casing for at least 15 minutes.
5. Open every faucet in the system and let the water run until the smell of chlorine can be detected. Then close all the faucets and seal the top of the well.
6. Let stand for several hours, preferably overnight.
7. After you have let the water stand, operate the pump by turning on all the faucets, flushing the system until all odor of chlorine disappears. Adjust the flow of water from faucets or fixtures that discharge into septic tank systems to a low flow to avoid overloading the septic system.

CHART 1. Amount of Bleach to use for a Drilled Well

Amount of disinfectant required for each 100 gallons of water:

• Laundry bleach (unscented) (5.25% chlorine) use 3 cups.
• Hypo chlorite Granules (70% chlorine) use 2 ounces (2 heaping tablespoons).