Line Locating Learn about our hydro-excavating services. Subsurface Utility Engineering Learn about our subsurface utility engineering services. One-Call Management One-Call Management Services Hydro-Excavating Learn about our hydro-excavating services. GIS Mapping Learn about our line locating services. Full Services List Learn about our line locating services. Call us today at (432) 213-7444 or Email info@linequest.com Be Proactive! Don’t wait for a disaster to update rules, regulations, policies, procedures, or techniques. Contact Us