Utah law only requires utility owners to mark the lines that they own and maintain. This usually means up to the meter. Underground lines that extend beyond the meter or that are not connected to a meter are typically not installed or owned by a utility company and therefore may not be marked. These include water and sewer laterals, power to a detached garage or lamppost, sprinkler / irrigation systems, lines connected to a propane tank or septic system, etc.

Almost every job site will include some type of privately-owned underground pipe or cable. The excavator should inspect the property carefully and ask the property owner about private underground lines before digging. The excavator should consider hiring a private locator to mark private lines that could be in conflict with the excavation project. Areas where private lines are especially common include apartment complexes, mobile home parks, gated subdivisions, cabin communities, schools and universities, hospital complexes, industrial areas, government facilities and military installations.

Locating companies that can be hired to mark private lines:
(Blue Stakes of Utah 811 does not endorse or promote any private locating company)

Company Phone Website Email Operating Counties Address
Apex Locating Services 385-320-3747 Website Email Entire State
– locates all services

Farmington, Utah
Blew & Associates, P.A. 888-933-2111 Website Email Entire State
3825 N Shiloh Dr
Fayetteville, AR 72703
Blood Hound Private Utility Locators 702-280-4189 Website Email Entire State 1755 W Sequoia Vista
Circle Ste 3-D
Salt Lake City, UT 84104
Earthview Technology Inc. 801-446-3004 Website Email Entire State PO Box 1409
Riverton, UT 84065
ELM Locating and Utility Services 406-728-9343 Website   Box Elder, Cache, Weber, Morgan, Davis, Summit, Wasatch, Salt Lake, Tooele, Utah, Beaver, Iron, Washington 3021 Palmer, Suite C
Missoula, MT 59808
GPR Services Inc. 385-253-1776 Website Email Entire State
– Utility Locating, Concrete Scanning, and Sub Surface Engineering
92 E 1810 N
Tooele, UT 84074
Ground Penetrating Radar Systems, Inc. 801-599-2115 Website Email Entire State
– locates all services
900 W Bitner Rd, Suite J-17
Park City, Utah 84094
Magic Valley Private Utility Locates 208-358-2351 Website Email Entire State Burley, ID
PdM Professionals & Consultants LLC 435-621-2539 Website Email Entire State
– locates all services
11000 N 8325 E
P.O. Box 76066
Tridell, Utah 84076
Penhall Technologies 801-355-7364 Website Email Entire State 2449 S Constitution Blvd
West Valley City, UT 84119
Right Side Locating 801-637-4078 Website   Entire State 6044 S 5800 W
Kearns, Utah 84118
Tri West Services 435-828-1389 Website Email Uintah Basin
Hydrovac Trailer & Line Locator
HC69 Box 176
Randlett, UT 84063

The following entities do not participate with Blue Stakes. If you need to dig on property owned or controlled by one of these entities, please contact that entity directly in addition to contacting Blue Stakes.

– Union Pacific Railroad – “Call Before You Dig!” Hotline – 800-336-9193
– Utah Transit Authority – UTA Control Center – 801-352-6701
– Hill Air Force Base – Red Stake – 801-777-0540
– Navajo Tribal Utility Authority – (for Navajo Nation lands) – 800-528-5011