Pool vs Springwater

Pool

name
  • A civil parish in the Metropolitan Borough of Leeds, West Yorkshire, England, also known as Pool in Wharfedale. 

Springwater

name
  • A rural unincorporated community in Clackamas County, Oregon, United States. 

  • A township in Simcoe County, Ontario, Canada. 

  • A town in Waushara County, Wisconsin, United States. 

  • A town in Livingston County, New York, United States. 

How often have the words Pool and Springwater occurred in a corpus of books? (source: Google Ngram Viewer )