Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_28819 ( "Hydrographic Basin" text, "Surface Area (km 2 )" real, "Rainfall totals (million m 3 )" real, "Evapotranspiration (million m 3 )" real, "Surface water runoff (million m 3 )" real, "Groundwater discharge (million m 3 )" real )

### Question ###
When cabarita river is the hydrographic basin what is the lowest groundwater discharge (million m 3)?

### Accurate SQL ###

SELECT MIN("Groundwater discharge (million m 3 )") FROM table_28819 WHERE "Hydrographic Basin" = 'Cabarita River'