TM98-06 Elimination of Acrolein from NWQL Schedules 2020, 2021 and Deletion of Schedule 1401

This technical memorandum pertains to the elimination of acrolein (WATSTORE Code 34210, CAS (Chemical Abstract Service) number 107-02-8) from National Water Quality Laboratory (NWQL) schedules 2020, 2021, and deletion of schedule 1401, due to an equipment change. The ability to consistently detect acrolein changed since the installation of new purge and trap concentrators in October 1997. Therefore, acrolein will be eliminated as a routine constituent of volatile organic compound (VOC) analyses as of April 30, 1998. All current and existing data reports and database results for acrolein are correct and do not require updates or adjustments.