The original data was created as follows: Arcs were extracted from the 1983 USGS DLG hydrography layers based on the CWRM Hawaii Stream Assessment (HSA) maps and database, then coded with the HSA stream code and the HSA stream name. The layer was created in 1994 for CWRM and OSP under contract with GeoInSight. The info tables were "cleaned" in 1998 by OP staff.