Appendix A - DISINFECTION TABLE*
(PRODUCES A 100 mg/1 SOLUTION PER 10 FEET OF CASING LENGTH)
| NOMINAL CASING OR BOREHOLE DIAMETER | GALLONS OF WATER PER 10 FEET OF CASING | 6% Chlorine HOC1 Clorox, Purex, Sno-White, White Magic, etc. (Sodium Hypochlorite) | 10% Chlorine HOC1 Liquid Bleach (Sodium Hypochlorite) | 70% Chlorine HOC1 "High Test" (Calcium Hypochlorite) | 100% Chlorine Cl 2 |
| (inches) | (gal/lOft.) | fluid oz. | fluid oz. | dry oz. | fluid oz |
| 4 | 6.5 | 1.7 | 0.9 | 0.1 | 0.1 |
| 5 | 10.2 | 2.6 | 1.4 | 0.2 | 0.1 |
| 6 | 15.0 | 3.8 | 2.0 | 0.3 | 0.2 |
| 8 | 26.0 | 6.6 | 3.5 | 0.5 | 0.35 |
| 10 | 40.8 | 10.4 | 5.4 | 0.8 | 0.5 |
| 12 | 58.7 | 14.9 | 7.8 | 1.1 | 0.8 |
| 16 | 104.4 | 26.5 | 13.9 | 2.0 | 1.4 |
| 20 | 163.2 | 40.8 | 21.2 | 3.3 | 2.2 |
| 24 | 235.0 | 59.7 | 30.6 | 4.5 | 3.1 |
| 36 | 528.7 | 132.2 | 68.7 | 10.6 | 7.1 |
| 48 | 940.0 | 235.0 | 122.2 | 18.8 | 12.5 |
For 50 mg/1 solution, divide values by 2; for 200 mg/1 solution, multiply values by 2.
U.S. liquid measure - 1 gal = 4 qt = 8 pt = 128 fl oz
U.S. dry weight measure - 16 oz = 1 lb
*Modified from National Ground Water Association, Manual of Water Well Construction Practices and State of Missouri Well Construction Rules