Internal Look-up Tables

The DVS currently uses several internal Look-up tables.

The following two tables are required, because WAJ and JVA use different codes in their billing statistics.

• T_use_type_byagency
• T_use_type_combined

Other local look-up tables of the DVS:

• TYearTypes - for the different hydrological year types
• TGovCodes - for the relation between Government codes and names
• TWWTPOwner - for the ownership of wastewater treatment plants
• TWaterSource - for the water source for industrial facilities
• T_Parameters - for the list of the most relevant water quality parameters