I am adding Georgia data to my GIS database and, unlike the California data I've added, have decided to use my existing EPSG:3361 (South Carolina StatePlane) coordinate reference system for calculations.
I've done this with reasonable success in North Carolina (South Carolina's northerly neighbor) but never did the research to determine the error suffered by using a linear reference system from a non-intended, albeit adjacent area.
I'm guessing the error shouldn't be more than 50 feet, am I correct in assuming this?
More technical information:
- here's the linear reference system I'm using in Georgia: http://spatialreference.org/ref/epsg/3361/
- here's the linear reference system I should be using in Georgia but am not: http://www.spatialreference.org/ref/epsg/2239/