Nice Chain of Custody.
Public Water Samples have Very Strict Rule’s.
My Drug Tests from a pain clinic have NONE, ZERO, ZIP, PIFF, NIL, NADA, NO NOTHING. AND THEY GET SHIPPED FROM North Carolina to San D-F’ORKING EGO, THE IDIOTS AT THE pain clinic didn’t even know what a Chain of Custody WAS/IS !!!!
You can include “zud”.