MIL-HDBK-1164
Table 1
Gallons (Liters) of Water Per Foot (Meters)
of Depth for Various Well Diameters
Well Diameter
Gallons of Water Per
Well Diameter
Gallons of Water Per
Foot of
Foot of
inches
(mm)
Depth (Lpm)
inches (mm)
Depth (Lpm)
4
(100)
0.65
(3.1)
20
(500)
16.32
(15.7)
6
(150)
1.47
(4.7)
22
(550)
19.75
(17.3)
8
(200)
2.61
(6.3)
24
(600)
23.50
(18.8)
10
(250)
4.08
(7.9)
27
(700)
29.74
(22.0)
12
(300)
5.88
(9.4)
30
(800)
36.72
(25.1)
14
(350)
8.00
(11.0)
36
(900)
52.88
(28.3)
15
--
9.18
--
42
(1,000)
71.97
(31.4)
16
(400)
10.44
(12.6)
48
(1,200)
94.00
(37.7)
18
(450)
13.22
(14.1)
60
(1,500)
148.88
(47.1)
c)
Disinfecting Dug Wells. After the casing or lining has been
completed, use a stiff brush or broom to wash the interior casing or lining wall with a
strong solution (100 mg/L) of chlorine. Calculate the quantity of water in the well and
follow the procedure for disinfection described above for drilled, driven, and bored
wells.
d)
Disinfecting Springs. Disinfect spring encasements using a
procedure similar to the one used for dug wells. If the water pressure is not sufficient to
raise the water to the top of the encasement, try shutting off the flow from the spring
and keeping the chlorine solution in the spring for 24 hours. If the flow cannot be shut
off completely, continue disinfecting the spring for as long as practical. Stock chlorine
solution can be used as the disinfecting agent. Conduct bacteriological testing before
returning the spring to use.
e)
Disinfecting Infiltration Galleries and Radial Collectors. Add
sufficient hypochlorite compounds to ensure a free residual chlorine concentration in
the gallery of 50 to 100 mg/L. Allow water to stand for 24 hours. Then pump the water
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