Maui 📍
Maui 📍
We locate cesspools before property sales and digging to keep inspections, disclosures, and excavation safe and on track
We locate underground electric, water, sewer, gas, and communications
Magnetic locating to find buried ferrous objects such as steel pipes, tank lids, rebar, valve boxes, and survey pins.
We locate buried irrigation lines and components to help prevent damage during digging, landscaping, or property improvements.
High-resolution RTK drone mapping and orthomosaic imagery to provide accurate site visuals for planning, documentation, and development
Detailed topographic maps and 3D site models that capture elevation, slope, and terrain for smarter design and construction decision
We map major tree roots around homes and streets to identify potential foundation risks and determine when removal or mitigation may be necessary.
We use RTK-enabled GNSS equipment to deliver highly accurate measurements and maps for property planning, construction, and documentation.
ʻImi Systems provides professional subsurface locating and high-accuracy mapping services to help homeowners, contractors, and property professionals make informed decisions before digging, building, or selling. Using advanced detection methods, RTK-enabled positioning, and aerial mapping, we identify what is below and above the surface with clarity and precision. Our services support safe excavation, foundation protection, irrigation planning, pre-sale inspections, and site documentation, reducing risk, avoiding costly surprises, and keeping projects moving forward with confidence across Maui.
Subsurface utility locating is the process of identifying and mapping underground utilities, including electric, water, gas, and communication lines, before any excavation begins. In Hawaii, underground utility strikes contribute to an estimated $1.5 billion in damages annually across the U.S., and Maui’s aging infrastructure and lack of accurate records make professional locating essential. ʻImi Systems uses electromagnetic (EM) detection and ground-penetrating radar (GPR) to provide precise depth and location data, reducing excavation risk and protecting your project timeline and budget.
“Ground-Penetrating Radar (GPR) works by emitting high-frequency radio waves into the ground and recording the reflected signals as they bounce off subsurface features. Different materials — concrete tanks, metal pipes, voids, and soil layers — each produce distinct signal patterns. GPR is completely non-destructive, requires no digging, and can detect features up to 10–15 feet deep depending on soil conditions. In Maui’s volcanic and clay-heavy soils, GPR is particularly effective for locating cesspools, septic tanks, and unknown underground structures that may not appear in property records
Maui has a large number of older homes, agricultural properties, and rural lots that were developed before modern utility documentation requirements. Studies show that up to 30% of underground utilities in Hawaii are either unrecorded or inaccurately mapped. Many cesspools and septic systems were installed decades ago with no formal documentation, and agricultural irrigation systems were often added informally over time. ʻImi Systems specializes in uncovering and mapping these unknown subsurface conditions, giving property owners, realtors, and contractors the accurate information they need before making decisions
Most residential subsurface locating jobs, including cesspool locating and utility line marking are completed within 2–4 hours on site. Larger commercial or agricultural properties may require a full day. Drone mapping surveys typically take 1–3 hours for standard residential or small commercial sites, with data processing and deliverables provided within 24–48 hours. ʻImi Systems schedules most projects within 48 hours of inquiry, making us one of the fastest-response subsurface locating services on Maui.”
Electromagnetic (EM) locating works by detecting the electromagnetic field generated by metallic utility lines, making it ideal for tracing active electric, gas, and communication lines over long distances. Ground-Penetrating Radar (GPR) uses radar pulses to create a cross-section image of the ground, detecting both metallic and non-metallic features like concrete tanks, PVC pipes, voids, and unknown structures. ʻImi Systems is NULCA-certified in both technologies and uses them together for the most comprehensive subsurface picture — EM for tracing known utility lines, GPR for detecting unknown or non-metallic features
Drone-based mapping produces high-accuracy topographic models, orthomosaic imagery, and 3D site models used across a wide range of applications in Maui. Common uses include pre-construction site surveys, grading and excavation planning, wetland and conservation area documentation, agricultural land assessment, and before-and-after project documentation. Drone surveys are up to 5x faster than traditional ground surveys and produce centimeter-level accuracy. ʻImi Systems has completed drone mapping projects for organizations including Hawaii Land Trust, providing critical baseline data for land management and conservation planning.
Pricing for subsurface locating services in Maui varies based on property size, complexity, and the technologies required. Residential cesspool and septic locating typically starts at a few hundred dollars, while larger commercial utility locating or drone mapping projects are priced based on site scope. Considering that a single underground utility strike can cost $10,000–$50,000 or more in repairs, delays, and liability, professional locating services represent a highly cost-effective investment. Contact ʻImi Systems at 808-269-8817 for a project-specific quote — most projects can be scheduled within 48 hours.”
