Holocene performs complete well decommissioning (well abandonment) services. We decommission monitoring wells, instrumentation wells, dewatering wells and domestic water wells. Steel or PVC water wells up to 16” in diameter and hundreds of feet deep can be perforated and grouted in place. PVC monitoring wells of any diameter can be chipped in place or grouted in place, all as per Washington Administrative Code (WAC) 173-160-460 and (WAC) 173-160-381. Holocene has developed a unique in-house 2” perforation tool that can perforate 2” PVC monitoring wells in place, we perforate and grout other PVC wells up to 16” diameter.