CREATE TABLE table_12791809_1 (super_b_capacity_reached_ VARCHAR2, _citation_needed_ VARCHAR2, number_of_truck_loads_north VARCHAR2)

When was the Super B capacity reached when the number of truck loads north was 7735?
SELECT super_b_capacity_reached_ AS "_citation_needed_" FROM table_12791809_1 WHERE number_of_truck_loads_north = 7735
SELECT "super_b_capacity_reached_" AS "_citation_needed_" FROM "table_12791809_1" WHERE "number_of_truck_loads_north" = 7735