Consult a 1:9600 map of the area, which shows 800 feet per inch, to discover the shape of the landfill site. Follow the advice of the Math-mate website and draw a grid over the area. Use squares of 1-inch size.
Count the number of squares completely occupied by landfill. Write this down as value A. Estimate the number of complete squares you could form from squares partly occupied by landfill. Write this down as value B. Add value A and value B together to get value C.
Multiply value C by 800 to get the number of square feet the landfill site occupies.
Contact the landfill site to discover the approximate average depth in feet at which the waste is buried. Write this down as value D.
Multiply value C by value D to arrive at an approximate figure for the volume of the landfill site in cubic feet.