Forms Request/notification D/DBP request for reduced monitoring form. Violation notification report form (for reporting violation of the DDBP Rule). TTHM and HAA5 (Stage 2) TTHM/HAA5 (Stage 2) sample site plan (monitoring plan). TTHM/HAA5 (Stage 2) sample site change form (monitoring plan). TTHM/HAA5 (Stage 2) locational running annual average (LRAA) form. TTHM/HAA5 operational evaluation level (OEL) report template and worksheet. Chlorite and chlorine dioxide Chlorite/Chlorine Dioxide (monitoring plan). Daily entry point chlorine dioxide and chlorite form (Instructions). Disinfection byproduct precursors Disinfection byproduct precursor compliance calculation form instructions. Disinfection byproduct precursor compliance calculation form. Guidance Disinfectants and Disinfection Byproduct Rule guidance handbook (2002). Quick guide: Disinfection Byproduct Precursors. Quick guide: Minimum disinfection for groundwater. Quick guide: Disinfectant residual. Color wheel.