TM07-03 Data reload for Hexahydrohexamethylcyclopentabenzopyran (HHCB) and Acetyl-hexamethyl-tetrahydronaphthalene (AHTN) by GC/MS reported in NWQL schedules 1433, 4433, 5433, and custom lab codes 8033, 8043, 8050, 8066, 8068, and 8417

The purpose of this technical memorandum is to alert USGS data users that results and method reports for two fragrance compounds, HHCB and AHTN, have been reversed. Additional information and clarification is provided in this memorandum to the previously released Rapi-Note 07-010