Twin City Locating
Centralia, Washington
Phone: (360) 720-3333
Twin City Locating, LLC
Private Utility Locating and GPR (Ground Penetrating Radar) services
(360)720-3333
Private Utility Locating in Chehalis, Washington
Twin City Locating provides professional private utility locating services throughout Chehalis, Washington, helping homeowners, contractors, and property owners safely locate underground utilities before excavation or construction. Whether installing fencing, trenching electrical service to a shop, repairing septic systems, or preparing land for development, locating underground utilities helps prevent costly damage and service interruptions.
Chehalis includes a mix of historic homes, commercial properties, agricultural land, and rural acreage throughout Lewis County. Many of these properties rely on private underground utilities such as septic systems, long electrical service runs, and water service lines that are not marked by public utility locating services.
Why private utility locating is important in Chehalis
Washington’s 811 locate service identifies public utilities only up to the meter or service connection point. Utilities beyond that point—including utilities serving homes, barns, shops, and other structures—are considered private utilities and typically remain unmarked.
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Private utility locating helps prevent:
• Damage to septic system piping
• Breaking underground water service lines
• Cutting electrical lines serving homes or shops
• Interrupting internet or communication lines
• Unexpected repair costs and project delays
Underground utilities commonly located in Chehalis
Twin City Locating provides locating services for residential, agricultural, and commercial properties throughout Chehalis and surrounding Lewis County communities.
Utilities commonly located include:
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• Septic system piping and drain lines
• Sewer laterals connecting homes to municipal sewer
• Private water service lines
• Underground electrical lines to homes and shops
• Power lines serving barns and agricultural buildings
• Communication and internet lines
• Irrigation systems
• Unknown underground utilities
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Many Chehalis properties have long private utility runs that extend significant distances from the road to the home or shop.
Ground Penetrating Radar locating in Chehalis
Ground Penetrating Radar (GPR) allows underground utilities to be located even when they are made of plastic or other non-metallic materials. This is especially useful in rural Chehalis properties where PVC and polyethylene piping are common.
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GPR is frequently used to locate:
• Septic system piping
• Plastic water lines
• PVC sewer lines
• Electrical conduit without tracer wire
• Unknown underground infrastructure
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​Serving Chehalis and surrounding Lewis County communities
Twin City Locating provides private utility locating throughout Chehalis, including:
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• Downtown Chehalis
• West Chehalis
• Chehalis Hill area
• Adna area
• Jackson Highway corridor
• Rural Lewis County properties near Chehalis
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Services are available for residential homes, agricultural properties, commercial sites, and undeveloped land.
When utility locating should be scheduled
Private utility locating should be performed before:
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• Installing fencing
• Septic system repair or replacement
• Trenching electrical service
• Building shops or barns
• Excavation or grading
• Installing water lines
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Locating utilities before digging helps prevent costly repairs and ensures safe excavation.
Schedule private utility locating in Chehalis
Twin City Locating provides professional underground utility locating services throughout Chehalis and Lewis County.
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Twin City Locating, LLC
Centralia, Washington
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Serving Thurston County, Lewis County, Mason County, Grays Harbor County, Pacific County, and Cowlitz County.
Frequently Asked Questions
Q: Can septic system lines be located in Chehalis?
A: Yes. Ground Penetrating Radar can locate septic system piping and related underground utilities.
Q: Are utilities on rural properties located?
A: Yes. Private utilities serving homes, barns, and agricultural buildings can be located.
Q: Does Washington 811 locate private utilities?
A: No. Private utilities require private utility locating services. Private underground locator like Twin City Locating is needed to locate everything past the meter or main line.