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Virginia Administrative Code (Last Updated: January 10, 2017) |
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Title 12. Health |
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Agency 5. Department of Health |
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Chapter 630. Private Well Regulations |
Section 470. Chlorination dosage rates
Latest version.
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Casing Diameter (Inches)
Volume per 100 Feet (Gallons)
70% Sodium Hypochlorite
(Oz. Dry Wt.)5% Sodium Hypochlorite (Liquid Meas.)
2
16
0.5
4 oz.
4
65
2
18 oz.
6
147
4
40 oz.
8
261
6
4.25 pts.
10
408
8
7 pts.
12
588
12
10 pts.
16
1045
20
2 gal.
20
1632
32
3.3 gal.
24
2350
48
4.67 gal.
30
3672
70
7.3 gal.
36
5288
101
10.5 gal.
Historical Notes
Derived from VR355-34-100, Appendix II; eff. April 1, 1992.