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Advanced Underground Utility Locating

Complete Utility Detection & Mapping 

Nearly all as-builts contain flaws due to neglected updates, making it difficult for project planning and causing delays in scheduling. We offer a full range of mapping options to existing as-builts or new direct utility reference mapping, saving on unexpected costs and delays for your project.

Locating subsurface utilities presents difficulties in the absence of meticulous and comprehensive records. In our experience, only some public utility maps are attainable through requests, and are often flawed, missing information or completely inaccurate. These requests often take weeks to obtain. Private utilities are not marked by 811. when calling 811 to perform a survey locates for even public utilities, (non dig ticket locate)  oftentimes they will never show up. AUUL’s private utility locating services and mapping provide a comprehensive and accurate map of what exists underground . Our proficient technicians extend a spectrum of services encompassing underground utility detection and examination, ensuring precise utility identification and reference mapping. GPS coordinates in our utility markings, and high-resolution utility maps combine to make  documentation of utilities easy to understand and identify. Our maps allow for ease in planning future projects or understanding what actually exists onsite.

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Communicating is key when identifying utilities that exist onsite, photos and memory can be outdated and forgotten. In utility dense areas markings can become difficult to understand, lines can disappear due to weathering and misunderstandings how utilities are running can cause safety issues and damages.


AUUL understands that every project from a single home to an industrial complex benefits from having extensive knowledge of underground infrastructure, reducing costly replanning, damages, and inability to repair utilities correctly when something is damaged or breaks onsite. 

There are Two levels of utility mapping that AUUL offers for locating both private and public utilities.

Complete Utility Detection & Mapping 

GPS Utility data Collection

This method involves first locating all utilities present on a site this includes; Gas, water, power, sewer, storm, fiber, telephone, septic tanks, drain fields, lighting, propane tanks and lines, well lines, main water lines, well heads, fire suppression systems, yard hydrant lines, secondary water lines to outbuildings or other structures,  forced sewer mains, pressurized septic lines, lines from generators, secondary gas lines, secondary power lines to other buildings or connections, steam lines, condensate lines, oil tanks, petroleum lines, reclaimed water lines, utility easements, interbuilding utility lines or ducts, abandoned in place utilities with no connection points, irrigation lines, junction boxes, buried junction boxes, handholes, air lines and many more examples, if it's in the ground, and we have a way of detecting it we can locate it. 
Once utility locating is complete, we will then map each utility point to point and overlay those precise points onto a mapping platform for reference. This kind of data collection can be used for utility planning, construction, permitting, site planning and a host of other uses. 
During our utility mapping, upon request, AUUL can identify depths of lines running in the ground, approximate size of pipes and material types.  
Our utility maps can be exported in KML,KMZ, SHP and PDF formats. 
If you really want to go all out on your utility mapping AUUL also offers Updated drone satellite photogrammetry combining aerial site pictures stitched and geo-locked for additional precision for your onsite utilities so you don't have to rely on outdated satellite imagery of your property.

Advanced Underground Utility Locating private utility locating washington
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Advanced Underground Utility Locating utility mapping
Complete Utility Detection & Mapping 

Reference Mapping

Reference mapping is a less costly approach to documenting utilities onsite, however this is less accurate and less transferable than GPS mapping, however for a homeowner or smaller sites this is used for referencing what exists. Typically this level of accuracy is within 5ft of the actual utility lines onsite, but allows for a more budget friendly approach to document utilities onsite. This still allows for the ability to plan future projects and have reference to where utilities are running underground.  

Advanced Underground Utility Locating
Advanced Underground Utility Locating

If We Can't Find It, It Can't Be Found. Contact an office near you to get a free quote. 

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