Optimal survey patterns in the solutions with tree removal and the survey-only problem 1 and 2 solutions.

Project budget $0.8M: a) survey-only problem 1 solution; c) survey-only problem 2 solution; e) optimal survey solution with tree removal. Project budget $4M: b) survey-only problem 1 solution; d) survey-only problem 2 solution; f) optimal survey solution with tree removal. The survey cost portions in the $0.8M and $4M project budgets are approximately $0.019M and $0.059M.