QLA-Test Holing
Verify utility location with absolute certainty.
Quality Level A test holing provides the highest level of utility verification — exposing utilities to confirm exact position, depth, size, and material for critical project planning.
Service Highlights
- Vacuum excavation
- ASCE Quality Level A
- Exact depth & position
- Material & size confirmation
- Photographic documentation
- ASCE 38 compliant reports
About This Service
When the stakes are highest, Quality Level A test holing provides the definitive answer. By physically exposing utilities through vacuum excavation or careful hand digging, QLA test holing confirms the exact horizontal position, depth, size, and material of buried utilities — eliminating uncertainty for critical design and construction decisions. ClearView's QLA test holing services are performed by experienced technicians and documented to ASCE 38 standards, giving engineers and owners the highest-confidence utility data available.
Key Benefits
Highest Confidence Data
Physical exposure of utilities provides absolute certainty about position, depth, size, and material.
ASCE Quality Level A
All test holing is performed and documented to ASCE 38 Quality Level A standards.
Vacuum Excavation
Non-destructive vacuum excavation minimizes risk to utilities and surrounding infrastructure during exposure.
Critical Decision Support
QLA data supports high-stakes design decisions, conflict resolution, and construction planning.
Industries Served
- Transportation & DOT
- Oil & Gas
- Electric Utilities
- Municipalities
- Engineering Design Firms
- Construction Management
All Services
View All ServicesOur Process
Location Identification
Target utility locations are identified using EM locating and GPR prior to excavation.
Permits & Coordination
Required permits are obtained and utility owners are notified prior to any excavation.
Vacuum Excavation
Utilities are carefully exposed using vacuum excavation to avoid damage.
Measurement & Documentation
Exact position, depth, size, material, and condition are measured and photographed.
Backfill & Reporting
Excavations are properly backfilled and a QLA report with all measurements is delivered.