Authority: IC 16-19-3-4

Affected: IC 16-19-3

Sec. 4. "Breakpoint chlorination" means the point in a rising chlorine residual at which the concentration of available chlorine becomes great enough to completely oxidize all organic matter and ammonia compounds (combined chlorine) in a pool.

(Indiana Department of Health; 410 IAC 6-2.1-4; filed May 19, 2003, 8:30 a.m.: 26 IR 3325; readopted filed Jul 8, 2009, 1:44 p.m.: 20090805-IR-410090209RFA; readopted filed Sep 30, 2015, 2:45 p.m.: 20151028-IR-410150169RFA; readopted filed Nov 12, 2021, 8:42 a.m.: 20211208-IR-410210386RFA; readopted filed Nov 14, 2025, 11:18 a.m.: 20251210-IR-410240588RFA)