Situational Awareness
Deviation / Discrepancy - Procedural Hazardous Material Violation; Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
Human Factors; Procedure
There was Hazmat planned for this flight; I received it plane side. I received a total of 3 foreman carts from cargo two of the carts had items that were labeled with Hazmat stickers. The other cart items were 4 boxes that were not labeled as Hazmat and were on a pallet with plastic securely wrapped around the boxes. It gave no indication that it was Hazmat.The other items that were labeled were loaded and surrounded with 19 bags. The non-labeled freight was loaded in pit 6 by itself. When I went to close the flight out; it wouldn't let me. This was because the system was indicating that that piece was also Hazmat; I called [Load Planning] and they told me that I also had Hazmat in pit 6 and it needed to be surrounded by 15 bags minimum. Unfortunately the aircraft had been dispatched and we had to bring it back to the gate to rectify the situation.
Ramp Agent reported Hazmat cargo errors with configuration and labeling after the  aircraft was dispatched.