My company has a job in Arizona that is above 4000’ ft elevation. A local survey outfit laid out site control for the entire 60 acre project. Every contractor on the site is using these points for layout for underground installations.
The survey company used GPS to layout the control points. When attempting to use these control points, everyone is coming up with errors from 1/2” to 8” using a total station. The survey company claims we need to apply a scale factor for grid to ground. Is this something that can be done in our detailing department, or does the survey company need to scale before sending us the .csv file?
Our detailers are pretty much worthless when it comes to anything related to creating a point file, especially if it involves rotating of scaling. Any input would help. Thanks in advance.