Mohawk Industries' Limestone Filler product contains a minimum of 100% pre-consumer recycled content according to a validation report from UL Environment. The report, which covered the period from June 30, 2014 to June 30, 2017, validated the recycled content claim using the UL ECVP 2809 standard at Mohawk's facility located at 160 South Industrial Blvd. in Calhoun, Georgia.