Wisconsin Administrative Code
Department of Natural Resources
NR 800 - Environmental Protection - Water Supply
Chapter NR 810 - Requirements for the operation and maintenance of public water systems
Subchapter IV - Inactivation Toolbox Components and CT Tables
Section NR 810.58 - CT table for viruses when using chloramines
Universal Citation: WI Admin Code § NR 810.58
Current through August 26, 2024
CT Values for Inactivation of Viruses by Chloramine
| Inactivation | Temperature, °C | |||||
| [LESS than]=1 | 5 | 10 | 15 | 20 | 25 | |
| 2-log | 1,243 | 857 | 643 | 428 | 321 | 214 |
| 3-log | 2,063 | 1,423 | 1,067 | 712 | 534 | 356 |
| 4-log | 2,883 | 1,988 | 1,491 | 994 | 746 | 497 |
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