ABANDONMENT OF MONITORING WELLS VIA PRESSURE GROUTING

Abandonment of three groundwater monitoring wells at a remote disturbed soil storage location in Yellowstone National Park was required prior to closure of the storage site. Wyoming regulations required grouting of the wells from the bottom up and documentation of abandoned well parameters. JBR provided Geoprobe® services to abandon the wells by application of bentonite grout using a high-pressure Geoprobe® grout pump in combination with a Geoprobe® direct-push rig. Water depths, grout volumes, well depths, and locations were logged and reported according to Wyoming regulations. The wellheads were removed and marked with permanent flush concrete monuments in advance of final storage site closure.

• Ed Handl, PE - Division Manager -