Section 12-106. Scope of defendant's liability established

A person shall
  be deemed to have affected a target community based upon  the  following
  grades of offenses:
    1.  For  a  grade  one  violation,  the  county  in which the place of
  participation by the defendant is situated;
    2. For a grade two violation, the community described  in  subdivision
  one  of this section along with all counties with a border contiguous to
  such community;
    3. For a grade three violation, the community described in subdivision
  two of this section plus all counties with a border contiguous  to  such
  community; and
    4. For a level four offense, the entire state.