Engineering Solutions Tailored to You
Established in 2003, LDIS is an engineering, procurement, and construction management services provider delivering tailored engineering solutions. Operating as part of the Tetra Tech family, it provides multidisciplinary design, project management, and specialized field services. The practice serves heavy industrial sectors including oil and gas, pharmaceuticals, mining, and renewable energy, executing capital projects from its home office in Arvada, Colorado.
Greg FreundSenior VP Project Execution
Robert DeherreraLDIS Unit President
Will ReinhardtVP Project Management
Jon BensonPiping Manager
Bob GorneaultEI/C Department Manager
Oversight and coordination of construction activities from initial mobilization through to final handover, ensuring that projects are built to specified designs and standards.
Work in this area is organized into supported delivery tasks.
Support includes Sourcing.
Support includes purchasing of materials.
Support includes equipment.
Support includes services needed for industrial capital projects.
Support includes managing the supply chain to maintain schedule.
Support includes budget integrity.
Work in this area is organized into supported delivery tasks.
Support includes process design work.
Support includes optimization.
Support includes evaluation of chemical.
Support includes industrial processes.
Support includes with expertise in gas processing.
Support includes carbon capture.
Support includes chemical synthesis.
Analysis and structural planning required to support heavy industrial installations, equipment pads, and facility expansions.
Analysis and design of structural supports, foundations, and framing to withstand severe industrial loads and environmental stresses.
Site grading, drainage, and infrastructure planning to support new greenfield developments and brownfield expansions.
Work in this area is organized into supported delivery tasks.
Support includes mechanical design work.
Support includes integration of mechanical systems.
Support includes ventilation.
Support includes process utility systems tailored to heavy industrial.
Support includes mining applications.
Work in this area is organized into supported delivery tasks.
Support includes Power distribution design.
Support includes system upgrades.
Support includes electrical modernization for industrial operations.
Support includes motor control centers.
Support includes facility power.
Work in this area is organized into supported delivery tasks.
Support includes Implementation of instrumentation.
Support includes control systems.
Support includes automation logic to monitor.
Support includes manage complex industrial facilities safely.
Support includes efficiently.
Work in this area is organized into supported delivery tasks.
Support includes pipeline design work.
Support includes routing.
Support includes hydraulic evaluation of pipelines for transporting hydrocarbons.
Support includes gases.
Support includes pipelines for process fluids across industrial terminals.
Work in this area is organized into supported delivery tasks.
Support includes Creation of detailed piping layouts.
Support includes orthographic drawings.
Support includes 3D models for industrial plants.
Support includes a discipline dating back to the founding of the organization in 2003.
On-site technical support to ensure safe and efficient start-up, operational compliance, and hazard prevention.
Systematic preparation and testing of equipment and installations to transition from construction to active operations safely.
Application of management systems to prevent highly hazardous chemical releases, supported by process hazard analyses.
Tracking, auditing, and organizing physical assets, spare parts, and mechanical systems on-site.
Comprehensive execution oversight implementing a fit-for-purpose methodology to deliver engineering projects on schedule and within budget.
Systematic tracking, storing, and managing of all technical documentation and engineering drawings throughout the project life cycle.
Chemicals · Mining · Oil & Gas · Pharmaceutical · Renewable Energy · Waste Management · Wastewater · Water Supply · Petrochemical
Louisiana · Oil & Gas · 2025
Engineering and design services for a large-scale amine carbon capture and CO2 sequestration facility, featuring a high-capacity gas processing facility designed for 1.7 BCFD plus an additional 500 mmSCFD of processing.
Wyoming · Oil & Gas
An electrical system upgrade, tank pad commissioning, and a detailed flare system evaluation, all supported by a full Process Hazard Analysis (PHA). The scope also included modernizing two existing Motor Control Centers (MCC) and providing ongoing operations support.
Rhode Island · Oil & Gas
Engineering support for the restart and comprehensive upgrade of a propane supply terminal.
Texas · Oil & Gas · 2023
Engineering and design services for a blue hydrogen and ammonia facility in Texas.