Terrain: Allows pick by drop-down or by identifying graphically.

Method: Two Choices (Single or Incremental).

Maximum Water Elevation: Identifies the upper elevation of the computation for either Single or Incremental method.

Minimum Water Elevation: Defines the lowest elevation to start the computation. If the Method is set to Single, this field is disabled.

Increment: The increment in elevation.

Elevation Lock: If this box is checked, the elevation for computing pond volume starts with the Minimum Water Elevation, increments to the next whole number using the specified interval, and ends with the Maximum Water Elevation. For example, if the Minimum Water Elevation is set to 91.25, the Interval is set to 2, and the Maximum Water Elevation is set to 99.00, the increment would be 93.00, 95.00, 97.00 and so forth until it reaches 99.00. If turned off, the increment is set to the next number based on the Minimum Water Elevation. Using the same example, the increment would be 93.25, 95.25, 97.25, and so forth until it reaches 99.00. This option is available only when the Method is set to Incremental.