Shan, my maintenance program goes like this:
M-3-5 miles (as I get closer to a race, I add in 4x10 sec hill sprints at the end)
T-1 mile easy/2-3 miles HM pace/1 mile easy
W-Rest
Th-2-4 miles easy/2 miles moderate pace
F-5 miles easy (closer to race add in 6x30 sec fartlek intervals at 5K pace)
Sa-Rest
Su-8-9 easy miles