(RALEIGH) -- Some county election boards across North Carolina are not doing a very good job of removing dead voters from their rolls, according to a group that keeps track of the statistics. Jay DeLancy of the Voter Integrity Project of NC explained what's supposed to happen when counties receive a list of deceased residents.

"The process mandated by law is that each month the State Board of Elections sends an updated file to the county and the county removes the names that are on that file," said DeLancy.

DeLancy said they found the names of 30,000 dead North Carolina voters who are still on voter rolls across the state. They are not going to legally challenge the county election boards, but they have asked them to update their lists.

According to the analysis done by Voter Integrity Project of NC, Moore County had the best record in the state with 8 deceased people per 10,000 voters. One county had 400 dead people per 10,000 voters.   The project has asked counties across the state to update their lists.