Twin City Locating, LLC
Private Utility Locating and GPR (Ground Penetrating Radar) services
(360)720-3333
Private Utility Locating in Tumwater, Washington
Twin City Locating provides professional private utility locating services throughout Tumwater, Washington, helping homeowners, contractors, and property managers safely locate underground utilities before excavation or construction. Whether installing fencing, replacing sewer lines, trenching electrical service, or preparing a site for building, locating underground utilities helps prevent costly damage and project delays.
Tumwater includes some of the oldest residential infrastructure in Thurston County as well as newer residential developments and commercial areas. Many homes, especially in established neighborhoods, have private sewer laterals, water service lines, and electrical lines that are not marked by public utility locating services offered by 811.
Why private utility locating is important in Tumwater
Washington’s 811 locate service identifies public utilities only up to the meter or connection point. Underground utilities located beyond that point—including utilities serving homes, detached garages, shops, and additions—are private utilities and will remain unmarked.
​
Private utility locating helps prevent:
• Damage to underground sewer laterals
• Striking underground electrical lines
• Breaking private water service lines
• Costly emergency repairs
• Construction delays and downtime
​
Learn more about private utility locating.
Underground utilities commonly located in Tumwater
Twin City Locating provides utility locating services throughout Tumwater for residential, commercial, and undeveloped properties.
Utilities commonly located include:
• Sewer laterals connecting homes to city sewer systems
• Private water service lines
• Underground electrical service lines
• Power lines serving detached garages or shops
• Communication and internet lines
• Irrigation systems
• Unknown underground utilities
These utilities are commonly encountered during excavation, construction, and property improvements.
Ground Penetrating Radar locating in Tumwater
Ground Penetrating Radar (GPR) allows utilities to be located even when they are made of plastic or other non-metallic materials. This is especially useful in Tumwater where utilities may have been installed decades ago without tracer wires.
​
GPR is commonly used to locate:
• PVC sewer lines
• Plastic water service lines
• Conduit and electrical ducting
• Utilities without tracer wire
• Unknown buried infrastructure
​
Learn more about GPR locating.
Serving all Tumwater neighborhoods and surrounding areas
Twin City Locating provides private utility locating throughout Tumwater, including:
​
• Tumwater Hill
• Deschutes River area
• Capitol Boulevard corridor
• Littlerock Road area
• South Tumwater neighborhoods
• Black Lake area
• Rural properties outside city limits
​
Services are available for residential homes, commercial sites, and undeveloped land.
​
When utility locating should be scheduled
Private utility locating should ideally be completed after calling 811, but before:
​
• Installing fences
• Sewer or water line repairs
• Trenching electrical lines
• Building shops or garages
• Excavation or grading
• Landscaping or drainage work
​
Locating utilities before digging helps ensure safe excavation and prevents costly damage.
Schedule private utility locating in Tumwater
Twin City Locating provides professional underground utility locating services throughout Tumwater and Thurston County.
​
​
Twin City Locating, LLC
Centralia, Washington
​
Serving Thurston County, Lewis County, Mason County, Grays Harbor County, Pacific County, and Cowlitz County.
Frequently Asked Questions
Q: Does Washington 811 locate private utilities in Tumwater?
A: No. Washington 811 locates public utilities only. Private utilities require a private utility locator.
Q: Can older sewer and water lines be located?
A: Yes. Ground Penetrating Radar can locate older utilities, including plastic and non-metallic pipes.
Q: When should locating be done before construction?
A: Utilities should be located before excavation begins to prevent damage and delays.