Geotechnical and environmental drilling

Envirotech Engineering & Consulting, Inc. is based in Enid, Oklahoma, and is licensed throughout the United States. What started in 1992 as a two-man partnership servicing primarily northwestern Oklahoma has grown into a full-service design engineering, environmental consulting, and geotechnical services firm servicing public and private clients throughout the United States.

construction materials testingconstruction QA/QCdrone services and GIS mappingengineering, design, and permitting servicesenvironmental sampling and field servicesfacility planning and designgeotechnical engineering and designmunicipal infrastructure designsite developmentsoils and construction material testing laboratory

GEO CIM, INC. PSC is a geotechnical engineering and engineering geology consulting firm with 37 years of practice, based in Guaynabo, Puerto Rico. The firm provides geologic and geotechnical studies for planning, permitting, and design of engineering works including buildings, earthwork, water and wastewater treatment plants, dams, highways, bridges, airport pavements, waterfront structures, renewable energy facilities, and slope stability evaluation.

CPT testingdeep and shallow foundation investigationengineering geology consultinggeotechnical engineeringground improvementload testingmechanically stabilized earth walls (MSE walls)PDA (Pile Driving Analyzer)Phase 1 environmental site assessmentssoil nailingtieback wallsVibration monitoring

GESTRA Engineering is a consulting firm specializing in geotechnical engineering, construction materials testing, and geotechnical and environmental drilling. Founded in 2000, it provides government agencies, municipalities, engineers, architects, and contractors with engineering services ranging from initial planning and feasibility studies to project completion. The firm has 25+ years of operation and maintains a geotechnical laboratory and field exploration equipment.

Consolidated Undrained Triaxial TestConstruction material engineeringconstruction materials testingDynamic Cone Penetrometer TestingFlight Auger Drillinggeotechnical engineeringGeotechnical laboratory and field serviceshollow stem auger drillingPavement engineeringPiezometer Installation & Water Level MonitoringPressuremeter TestingRotary Mud DrillingShelby Tube SamplingSlope Inclinometer Installation and TestingSoil evaluation for storm water infiltrationStandard Penetration TestingSwell TestUnconsolidated Undrained Triaxial TestVane Shear Testing