TM06-01 Review of method performance and improvements for determining wastewater compounds (Schedule 1433)

This technical memorandum is a follow-up to three NWQL Rapi-Notes (see NWQL Rapi-Notes 03- 001, 03-003, and 03-018)* regarding the identification of low-level chronic laboratory blank contamination in the wastewater analysis method, Schedule 1433. The memorandum documents changes that have been made in sample preparation for Schedule 1433 that reduce or eliminate laboratory contamination and interferences for all but a few compounds