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Groundwatch Geophysical Surveying Services

Philippine Engineering Geophysics

Subsurface imaging for smarter engineering decisions.

Groundwatch provides geophysical surveys and subsurface investigation support for engineering, infrastructure, renewable energy, mining, groundwater, and environmental projects across the Philippines.

Philippines-wide field workERI · Seismic · GPR · MagneticEngineering-ready reportsNon-invasive — no drilling

Technical, field-ready reporting designed to reduce uncertainty before drilling, excavation, construction, or asset development.

Sinkhole formation — the consequence of undetected underground voids
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Why Clients Call Us

Unknown ground conditions create delay, risk, and avoidable cost.

Boreholes provide direct data, but only at specific points. Geophysics helps investigate the space between boreholes and supports a better ground model before decisions are locked in.

Hidden soft ground, underground water, cavities, buried utilities, fractures, weak zones, and variable rock depth can trigger redesigns, delays, claims, and safety issues.

Groundwatch helps reduce that uncertainty with measured, interpreted subsurface imaging that is correlated with boreholes, geology, and project objectives.

What geophysics adds

  • Between boreholes: It investigates the space that direct drilling cannot cover.
  • Hidden risk: It reveals weak zones, water, cavities, and buried constraints before they appear in construction.
  • Decision support: It helps teams choose better borehole locations, excavation plans, and validation steps.

Results

Clear outputs for engineers, owners, and decision makers.

Groundwatch converts field data into visual, practical, and engineering-ready deliverables.

Geophysical survey output — resistivity cross-section showing underground conditions
Sample Output

Underground conditions mapped and ready for engineering decisions.

2D Cross-Section

2D Cross-Section

Color-coded underground profile

3D Underground Model

3D Underground Model

Block visualization of ground layers

Underground Map

Underground Map

Plan view of targets and risk zones

Technical Report

Technical Report

Interpretation, limits, and recommendations

Output types vary by survey method, site conditions, and project objective. Contact us to discuss specific deliverables for your project.

What We Do

We survey the ground, process the data, and turn hidden conditions into clear decisions.

Geophysical Services

Subsurface survey methods grouped by how they measure the ground.

Different ground problems need different ways of measuring what is below the surface. Groundwatch selects methods based on target depth, site condition, and the engineering question, then integrates results into decision-ready interpretation.

Primary capability

Geophysical surveys come first.

Electrical, electromagnetic, seismic, acoustic, magnetic, gravity, radiometric, thermal, remote-sensing, and monitoring methods form the core catalog. Supporting services strengthen interpretation but stay secondary to measured geophysical evidence.

Method selection

  • Which geophysical method matches the project problem.
  • What each method helps identify in the subsurface.
  • Where to view methods on this page or open the full catalog.

Start on this page, then open the full catalog only if you need the complete directory.

See Methods on This PageOpen Full Service Catalog

Featured Services

Methods and services clients ask for most often

This preview includes priority geophysical methods and key supporting services so homepage visitors can act without leaving the page flow.

Electrical and Resistivity Surveys

Electrical Resistivity Imaging (ERI / ERT)

Electrical Resistivity Imaging and ERT survey services in the Philippines for groundwater targeting, seepage investigation, foundation screening, and subsurface interpretation.

Common Applications

  • Electrical resistivity imaging Philippines investigations for groundwater exploration and deep well resistivity survey Philippines planning
  • Geo-resistivity survey Philippines / georesistivity survey Philippines support for foundation and subgrade assessment
  • Environmental baseline mapping, seepage investigation, and geohazard-oriented screening
Seismic Surveys

Seismic Refraction and MASW

Seismic refraction and MASW surveys in the Philippines for bedrock mapping, stiffness profiling, site classification, and rippability assessment.

Common Applications

  • Infrastructure corridor studies and road widening
  • Renewable energy site screening and pad planning
  • Mining, slope-risk, and geohazard baseline programs
Electromagnetic and GPR Surveys

Ground Penetrating Radar (GPR) Survey

Ground Penetrating Radar survey in the Philippines for underground utility mapping, concrete scanning, pavement GPR, and shallow subsurface investigation support.

Common Applications

  • Underground utility mapping Philippines for construction and redevelopment
  • Concrete scanning Philippines for coring, cutting, and retrofit planning
  • Pavement GPR Philippines and shallow subsurface investigation Philippines for corridor works
Electromagnetic and GPR SurveysLand and Marine

Electromagnetic Survey Methods

Electromagnetic survey services in the Philippines for FDEM, TDEM/TEM, VLF-EM, conductivity mapping, metal detection, and marine or borehole EM applications.

Common Applications

  • FDEM and VLF-EM reconnaissance for utilities and environmental studies
  • TDEM/TEM style conductivity mapping in mining and groundwater-related screening
  • Marine EM and borehole EM support where applicable
Magnetic SurveysLand and Marine

Magnetic Survey Methods

Magnetic surveys in the Philippines for ferrous target detection, lineament mapping, and exploration-oriented geophysical interpretation.

Common Applications

  • Exploration baseline studies
  • Infrastructure and corridor screening
  • Integrated geohazard and target reconnaissance
Gravity and Microgravity SurveysLand and Marine

Gravity Survey Methods

Gravity surveys in the Philippines for density-contrast mapping, cavity indication, and deep-structure interpretation support.

Common Applications

  • Mining and exploration support
  • Infrastructure hazard baseline mapping
  • Integrated geohazard studies
Thermal and Temperature-Based MethodsLand and Borehole

Thermal Resistivity Testing

Thermal resistivity testing in the Philippines for cable design, grounding studies, and specialized thermal-property inputs for engineering projects.

Common Applications

  • Power cable route and substation design support
  • Solar and wind project balance-of-plant studies
  • Specialized geothermal or heat-flow screening studies
Electromagnetic and GPR Surveys

3D GPR Imaging

3D GPR imaging in the Philippines for utility congestion mapping, shallow anomaly visualization, and depth-slice interpretation in complex sites.

Common Applications

  • Urban utility planning and conflict checks
  • Industrial facility upgrade and expansion works
  • Infrastructure investigations requiring plan-view depth context
Hydrogeological Services

Groundwater Exploration Geophysics

Groundwater exploration geophysics in the Philippines for aquifer targeting, well-siting support, and hydrogeologic interpretation.

Common Applications

  • Water resources projects
  • Industrial water supply planning
  • Municipal and private well-siting programs
Hydrogeological Services

Well Siting

Well siting services in the Philippines combining hydrogeological and geophysical interpretation to prioritize drilling targets and reduce groundwater uncertainty.

Common Applications

  • Municipal and barangay water-supply programs
  • Industrial and commercial facility water planning
  • Construction, mining, and energy project water sourcing
Geohazard ServicesLand and Marine

Geological and Geohazard Assessment

Integrated geological and geohazard assessment services in the Philippines for infrastructure, energy, and development risk reduction.

Common Applications

  • Infrastructure and utility planning
  • Renewable energy siting
  • Mining and slope-risk baseline studies
Geological Services

Rockhead Mapping

Rockhead mapping geophysical survey support in the Philippines for depth-to-rock interpretation, excavation planning, and foundation risk reduction.

Common Applications

  • Road corridor and bridge approach studies
  • Industrial and commercial site development
  • Mining, quarry, and slope-risk baseline investigations
Integrated Applications

Utility Detection Survey

Utility detection survey services in the Philippines for safer excavation planning, corridor mapping, and buried-service interpretation.

Common Applications

  • Infrastructure and utilities
  • Building retrofit and fit-out works
  • Road and plant corridor works
Integrated Applications

Concrete and Slab Scanning

Concrete and slab scanning in the Philippines for rebar mapping, post-tension cable avoidance, conduit checks, and safer coring or cutting decisions.

Common Applications

  • Commercial and industrial retrofit works
  • Facility maintenance and expansion projects
  • Construction QA and pre-demolition checks

Risk Reduction

The most expensive ground problems are usually discovered too late.

Geophysics helps identify possible underground concerns before they affect safety, cost, schedule, or design.

Site conditions before geophysical survey

Without Geophysics

Surface looks ready. Real conditions remain unknown. False confidence leads to unexpected problems.

Underground conditions mapped after geophysical survey

With Geophysics

Underground conditions are revealed. Unexpected readings are identified. Risk zones are mapped. Better decisions become possible.

Reduce blind drilling — prioritize boreholes based on survey evidence

Identify weak and wet zones before excavation or foundation work begins

Reduce excavation surprises that cause delays and redesigns

Support design decisions with defensible, investigation-backed ground data

Improve investigation scope — location, depth, and spacing

Reduce unexpected change orders and schedule overruns

Process

A practical workflow from question to decision.

01

Project Scoping

We define the client's objective, site condition, target depth, expected ground issue, and required output.

1 / 9

How We Keep Results Defensible

Field QA / QC

Data quality is checked during acquisition — not just in the office. Noise, poor coupling, and positioning errors are corrected before leaving the site.

Method fit

Survey design is matched to the actual underground problem. Depth range, resolution, and expected ground contrast guide every method and layout decision.

Geology integration

Geophysical results are interpreted together with available geology, borehole data, site observations, and engineering context.

Limitations stated

Every report clearly states what the data can and cannot confirm, and identifies what additional data would improve confidence in the interpretation.

Case Studies

Project examples across industries.

Renewable Energy Site Characterization
Renewable Energy Site Characterization

Renewable Energy Site Characterization

Problem

Large project area with possible variable ground conditions across the site footprint.

Methods

Electrical Resistivity Imaging, Seismic, Ground Penetrating Radar, Borehole Correlation

Result

Underground zones were interpreted to support planning and investigation priorities.

Building Foundation Investigation
Building Foundation Investigation

Building Foundation Investigation

Problem

Client needed better understanding of shallow and intermediate ground conditions before design finalization.

Methods

Seismic Refraction, Surface Wave Analysis, Electrical Resistivity Imaging, Ground Penetrating Radar

Result

Velocity and resistivity sections helped identify possible changes in stiffness, saturation, and underground layering.

Mining Exploration Support
Mining Exploration Support

Mining Exploration Support

Problem

Exploration team needed geophysical targets for further drilling and geological interpretation.

Methods

Electrical Resistivity Imaging, Induced Polarization (IP), Magnetic Survey

Result

Unexpected reading zones were mapped and prioritized for follow-up investigation.

Dam & Embankment Assessment
Dam & Embankment Assessment

Dam & Embankment Assessment

Problem

Concern for seepage, weak zones, and underground variability along embankment alignment.

Methods

Electrical Resistivity Imaging, Seismic, Surface Wave Analysis

Result

Interpreted sections helped identify zones requiring further engineering review.

Utility & Obstruction Mapping
Utility & Obstruction Mapping

Utility & Obstruction Mapping

Problem

Excavation area had possible buried utilities and shallow obstructions in a congested corridor.

Methods

3D Ground Penetrating Radar, Utility Detection

Result

Mapped utility-like responses and unexpected shallow readings for safer excavation planning.

Groundwater Exploration
Groundwater Exploration

Groundwater Exploration

Problem

Client needed support for well siting and groundwater target identification in a rural area.

Methods

Electrical Resistivity Imaging, Hydrogeological Interpretation

Result

Possible water-bearing zones and structural controls were identified for follow-up validation.

These are sample case studies for structure and layout. Replace them with anonymized real projects, field images, and verified results when available.

Get Started

Need a geophysical survey for your project?

Send your project objective, site location, target depth, and available documents so Groundwatch can recommend the appropriate method based on site condition and decision requirement.

Quotation preparation

Before requesting a quotation, prepare your project location, site plan, target depth, available borehole logs, geotechnical reports, site photos, access limitations, preferred schedule, and required deliverables.

View Services
LocationPhilippines (nationwide coverage)

Before requesting a quotation, prepare your project location, site plan, target depth, available borehole logs, geotechnical reports, site photos, access limitations, preferred schedule, and required deliverables.

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