Just tried one more time, received the following error:
ERROR 999999: Error executing function.
invalid extent for output coordinate system
Failed to execute (Project)
The input fields in the project tool were:
Input Dataset or Feature Class: original csv converted to shapefile
Input Coordinate System: GCS_WGS_1984 (default)
Output Dataset or Feature Class: path to file
Output Coordinate System: NAD_1983_HARN_StatePlane_Washington_South_FIPS_4602_(US Feet)