How can I travel from Picton, Marlborough to Blenheim, Marlborough for work Monday- Friday?

I am moving from Ireland and need to be in work in Blenheim for 9am and leave work at 5pm to return to Picton. Can anyone please help me with bus/coach/rail timetables and companies please so that I know if it will be possible to use public transport to get to and from work each day.