SQL Server 2008 :: Remove Duplicates From Query?

I am working with a bunch of records that have duplicates on the Persid and the intPercentID where there are duplicates I want to remove when I stick them in the temp table, I tried join on tempo table and doing not exists but still inserts, so now I am trying a merge but same thing. how can I keep duplicates from being inserted in the temp table. I made a cursor as well but its slow as heck, but it does work. trying better ways.

Create table #TempStr (STRId int not null Identity(1,1) primary key, Persid int, percentId int, dtCreated datetime, CreatedBy int)

Create table #NewStr (STRId int, Persid int, percentId int, dtCreated datetime, CreatedBy int)

INSERT #TempStr (Persid, percentId, dtCreated, CreatedBy)
select intPersonnelID, intPercentID, dtSubmitted, intSubmittedBy from tblSTR
whereintpercentId in (61,62) group by intPercentID, intPersonnelID, dtSubmitted, intSubmittedBy
UNION ALL

[code]....