This powerpoint presentation begins by providing a brief overview of reactions between dissolved organic nitrogen (DON) and oxidants (chlorine or monochloramine), a comparison of disinfection schemes, and DON quantification. Analytical methods for organic chloramines are listed, and the formation of organic chloramines - model compounds are presented, along with organic chloramines upon monochloramination of raw waters. Presentation summary for chlorination of the natural organic matter (NOM) isolates and raw waters includes: rapidly formed organic chloramines within 10 minutes; average organic chloramines production (10 minutes) - 0.78 (NOM) and 0.96 (raw waters) mg-Cl₂/mg-DON; and, decomposition of organic chloramines occurred over time - decreased by 70% over 1 day. Presentation summary for monochloramination of the NOM isolates and raw waters includes: took much more time to form organic chloramines than chlorination; average organic chloramines production (24 hours)- 0.16 mg-Cl₂/mg-DON; and, organic chloramines formed upon monochloramination is more stable. Includes figures.