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Complete the following table using your own figures to determine how much water and chlorine you need to shock chlorinate your well.

Casing Diameter

Volume of

Water Needed

5 1/4%

1

Domestic

Chlorine Bleach

12%

Industrial Sodium

Hypochlorite

2

70%

High Test Calcium

Hypochlorite

(

in)

(

mm)

Imperial gal. needed per

1

ft. of water in the casing

L per 1 ft. (30 cm) of water L per 1 ft. (30 cm) of water

Dry weight

2

per 1 ft.

(30

cm) of water

4

(100)

_____

ft. x 1.1 gal. = _____

_____

ft. x 0.019 L = _____

_____

ft. x 0.008 L = _____ _____ft. x 1.44 g = ______

6

(150)

_____

ft. x 2.4 gal. = _____

_____

ft. x 0.042 L = _____

_____

ft. x 0.018 L = _____ _____ft. x 3.12 g = ______

8

(200)

_____

ft. x 4.2 gal. = _____

_____

ft. x 0.072 L = _____

_____

ft. x 0.032 L = _____ _____ft. x 5.46 g = ______

24

(600)

3

extra 200 gal.

_____

ft. x 0.340 L = _____

_____

ft. x 0.148 L = _____ _____ft. x 25.40 g = _____

36

(900)

3

extra 200 gal.

_____

ft. x 0.760 L = _____

_____

ft. x 0.34 L = ______ _____ft. x 57.20 g = _____

See modified procedure for large diameter wells on page 53.

Domestic chlorine bleach should not have

additives or perfumes.

Since a dry chemical is being used, it should

be mixed with water to form a chlorine

solution prior to placing it in the well.