Query Doubles Quantity

I'm sure that this issue is simply. I've done it before, but for some reason I'm having problems today. :confused:

I have 4 tables in one database as follows:

1) Sort Table = Sort #
Sort Date
Qty Sorted
Qty Rejected
2) Sorter Table = Sort #
Sorter Clock #
3) Operator Table = Sort #
Operator Clock #
4) Defect Table = Sort #
Defect Type
Defect Qty

When I attempt to query these tables, my totals increase.
EX: I have 500 items sorted; 100 defects; 2 sorters; 2 operators and 100 defects of type 1 and 100 defects of type 2.

My query results are 1000 items sorted with operator 1 having 100 defects of type 1 and 100 defects of type 2 and operator 2 having 100 defects of type 1 and 100 defects of type 2.

My quantity of items is doubled because it took (2) operators to make the items. My defects are doubled because it took (2) operators to make the defects.

Please help.;)