The original shapefiles and subsequent polygons developed through various TMDL efforts were assembled and organized into 3 categories (labeled “Historic_Stream_TMDLs”, “Lake_TMDLs”, and “Shellfish_TMDLs”). As additional TMDLs were completed, new TMDL polygons were organized into a category entitled “Updated_Stream_TMDLs”. Recently, the information contained in the aforementioned 4 categories have been converted to feature classes in a geodatabase. The attributes have been standardized for the full TMDL dataset.
Pre-existing attribute fields were edited and new attribute fields (i.e. NJDEP link, Status, EPA_Num, etc.) were populated with corresponding information for each TMDL report. The NJDEP TMDL-program refined TMDL geodatabase was subsequently reviewed by the NJDEP-BGIS. Topology review resulted in minor tweaks to the database.
The update included new TMDL work (e.g. Total Maximum Daily Load Report For the Non-Tidal Raritan River Basin Addressing Total Phosphorus, Dissolved Oxygen, pH and Total Suspended Solids Impairments) that the NJDEP has completed since the previous versions of the TMDL datasets. A few corrections to the attribute information and spatial extent of the previous TMDL geodatabase were also made. The links to the TMDL documents were fixed after some web locations of TMDL reports were moved.
The links to the TMDL documents were fixed after some web locations of TMDL reports were moved.