I presume you are running a drillhole database validation process?
I'm not sure why you would have surface samples in a drillhole database.
If they are point samples in a database they should be separated into an "Event" file (as opposed to an "interval" file.
This is a geobank collar table, not a micromine drillhole database
In the Geobank Data Model Framework the "NO_ZERO_WIDTHS" rule is for this validation test, so to ignore certain records, these records could be put as a different VALIDATION GROUP. Alternatively, in Geobank 9.0.0 there is a separate Point Sampling data model available.
Customer support service by UserEcho