Process Description:
Data is updated on a continuous basis. GPS coordinate locations for NJEMS sites were collected beginning in 1993. The GPS data was processed (including differential correction) and the resulting site coordinates were passed on to NJDEP DOIT staff who loaded the coordinates into the NJEMS Site Masterfile database. NJDEP permitting staff also entered coordinate data for sites without already existing GPS coordinate values. Address-matched coordinates were generated for sites without coordinates in July and September 2004, using TIGER and GDT roads. The default matching options were selected, including spelling sensitivity: 80, minimum candidate score: 10, minimum match score: 60. NJEMS site records associated with autobody repair facilities were exported to an Excel spreadsheet which was later reformatted to a .dbf file. This was then joined to the NJEMS sites layer in ArcMap. Once the join was done, the NJEMS sites records that made a successful join to the autobody repair facilities table, were exported into the new autobody repair facilities layer.