Practices performed on a farm in connection with nonfarming
operations performed on or off such farm do not meet the requirement
stated in Sec. 780.141. For example, if a farmer operates a gravel pit
on his farm, none of the practices performed in connection with the
operation of such gravel pit would be within section 3(f). Whether or
not some practices are performed in connection with farming operations
conducted on the farm where they are performed must be determined with
reference to the purpose of the farmer for whom the practice is
performed. Thus, land clearing operations may or may not be connected
with such farming operations depending on whether or not the farmer
intends to devote the cleared land to farm use.