Reservoir High School appears to be in the Reservoir electorate, based on the school name and the electorate lookup result for “Reservoir” in Victoria.

Note

There’s a possible ambiguity because “Reservoir High School” can refer to different schools in different places, and the result I found for this name was tied to Victoria/Australia.

What I found

  • The Victorian electorate search result is for Reservoir.
  • A Reservoir High School annual report also points to the Victorian school context.

If you meant the school in a different country or state, I can narrow it down from the exact address.