Question
Is a groundwater contour map plotted on a topographic map or a plain or tracing paper. OR
Answer
Hi Olow:
There are several different ways to show groundwater contours. Have a look at the URLs below for a range of treatments. Good luck with it. Mike
Depth to Groundwater map - Tucson AZ https://www.tucsonaz.gov/water/groundwater-maps
Groundwater elevation map - Tucson AZ same URL
Topo-Groundwater Contour Map - http://www.gly.uga.edu/railsback/1121GWMap3.jpeg
This site is designed for students and some excellent graphics: http://www.gly.uga.edu/railsback/GeologicalDiagrams2.html See the groundwater section.
