Plumbing drain / vent help

[walleye vision]

Hi guys,  plumbing newb here, like I really don't know much at all.  So anyway, I'm going to refinish my basement and am planning something but need to know how to do it and still meet code.  I have a stud wall with the plumbing drain / vents that was roughed in for a bathroom when the house was built.  What I'd like to do is add a wet bar sink on the other side of the wall from where the bathroom sink will be.  The rough-in has one T coming off of it.  Is there a way I could connect both sink drains to this T and still meet code?  I'll include a picture for reference.  I appreciate any and all help I can get.

P.S. - I'm in MN

[delcecchi]

Since nobody smarter than me has replied, here goes.  I think you would be ok. You just need a vent within so many feet of the drain.  Think of a kitchen double sink, or even a double sink and a dishwasher all going into the same drain, and only one vent.  

In my house, the sinks, the dishwasher, and the clothes washer all go into the same vertical drain, with the washer in the basement.  

[MJBaldwin]

Are you talking your sanitary line or your vent line? That size will be sufficient for meeting code. i am assuming its either a 1-1/2 or 2" sanitary/vent line.. Both of which sizes would accommodate what you are looking to do.

A bar sink & lavatory is only 1 DFU "drain fixture unit" each your max you can do on an 1-1/2" line is 2 and on a 2" sanitary line it would be 6..