As very specific examples of survey activity by NSRFC after 1989: --
.
In
April 1991, on his return from Japan, McKay was himself asked to
conduct geophysical well-logging surveys for aquifer assessment -- which
he undertook in the Trenton and Pictou areas at that time.
.
The following
April (1992), underground well-logging was undertaken in the Cape Breton
coal mines by NSRFC.