US lawWisconsinRegulationsNRChapter NR 810 — Requirements For The Operation And Maintenance Of Public Water SystemsNR 810.48Wis. Admin. Code NR 810.48CT table for giardia when using free chlorine at 5 ° CLast amended: 2010Year: 2026Length: 12 wordsOfficial source Cite as Wis. Admin. Code NR § 810.48CT table for giardia when using free chlorine at 5 ° C.PreviousWis. Admin. Code NR 810.47NextWis. Admin. Code NR 810.49