Wal-Mart Stores...has agreed to make some safety improvements and pay a $190,000 fine after violations were found concerning trash compactors and chemicals. The improvements will be implemented in over 2,800 Wal-Mart and Sam's Club stores...Violations included an unlocked trash compactor and "unguarded grinder." Employees had not been trained sufficiently in proper use of the equipment and in handling potentially dangerous chemicals. Blocked exit routes were also observed... Wal-Mart...announced the issues had been corrected, and similar violations had not been reported in other Wal-Mart locations...