Does anybody know how not to get "Overflow" in the last line of this code??

VB Code:
  1. Dim dLevel As Double
  2.     Dim dBitWiseAnd As Double
  3.  
  4.     'Just in case, the value of that field is rs!DAEGR_Level=2147483648
  5.     dBitWiseAnd = CDbl(rs!DAEGR_Level) And dLevel