Clear all locations proposed for drilling for utilities before the core drill team arrives. When utilities are present, ensure their exact locations are clearly marked by the utility company.

Call 1-800-545-6005 for utility clearance. Calls to this number automatically rotate to the three notification centers. Obtain utility clearance at least 48 hours and no more than 14 days before starting core drilling. You may contact the three notification centers directly as follows:

Texas Excavation Safety System (TESS) 1-800-344-8377
Lone Star Notification Center 1-800-669-8344
Texas One Call 1-800-245-4545