What is the maximum distortion error for the State Plane Coordinates?

The maximum distortion error for State Plane Coordinates is set to ensure that measurements within the coordinate system maintain a high level of accuracy. The correct answer is based on typical standards associated with the State Plane Coordinate System (SPCS).

The specification of 1 foot of distortion for every 10,000 feet indicates that the system is designed to minimize error and is generally applicable across most regions covered by the State Plane system. This level of precision is essential for activities such as surveying and land assessments, where accurate positioning and distance calculations are critical.

The other options represent varying degrees of distortion that would exceed what is considered acceptable for the precision needed in land surveying and property assessments. A greater distortion, such as 1 foot for every 5,000 feet or 1 foot for every 20,000 feet, would diminish the reliability of the coordinates in practical applications. Thus, the standard of 1 foot in every 10,000 feet is set to ensure a reliable and effective framework for using State Plane Coordinates within appropriate limits, maintaining accuracy suitable for professional use.