A recent industrial facility released lead into the surrounding soil. Soil sampling results indicated the area impacted with lead above action levels is 30 feet by 55 feet. The depth of the lead contamination plume is three feet below ground surface. The land owner wanted to clean this site for future development. Using your textbook, answer the questions below to help you prepare a cost estimate for this portion of the project. Your solutions and any assumptions to justify your estimate must be shown.