Team

Management Philosophy

The JREM team is comprised of experienced professionals and field technicians who work closely together on all projects. 

People are the most important element of any successful business. Here at JREM, our management team has a dedicated approach for achieving a cohesive, motivated, and focused staff.

The Triad Approach

“The Triad Approach” is a philosophy created to maximize the health of all relationships. Trust, Respect and Communication.

Promote Within

We believe fostering an environment between manager and staff that nurtures the health of these key elements will create a high integrity product for our staff to be proud of, while leaving our clients satisfied and impressed.

Trust, Respect, Communication

Critical Motivational Elements

Remediation Managers

Remediation Managers are senior level individuals who have demonstrated the ability to manage onsite operations and oversee multiple technicians.

Our remediation managers typically have 15 or more years of experience and are experts at performing site investigations via DPT; performing injections; and installing, operating, monitoring, troubleshooting, repairing, and modifying remediation equipment and systems. 

One of the invaluable services provided by our remediation managers is their ability to provide detailed real-time feedback to our clients to minimize downtime in the field and maximize the performance of our projects.

Jay K. Jensen

Drilling

Mr. Jensen is the Drilling Operations Manager for JREM and has over 25 years of experience in a wide variety of environmental field disciplines. As Operations Manager, he primarily conducts the behind the scenes work to keep the Division running.

Mr. Jensen is the Drilling Operations Manager for JREM and has over 25 years of experience in a wide variety of environmental field disciplines. As Operations Manager, he primarily conducts the behind the scenes work to keep the Division running.Mr. Jensen has a complete understanding of the abilities the fleet of JHA Drilling rigs has to offer in the collection of soil, water, and vapor samples.

In addition, Mr. Jensen has performed and managed the collection of soil, groundwater, and vapor samples; chemical injection, collection and interpretation of direct imaging data, tank and clarifier removal and closure, well abandonment, utility clearances, sub-surface fracturing, lab packing for proper disposal, Global Positioning System (GPS) surveying, and site demolitions.  Mr. Jensen also is an experienced Direct Push Operator of direct push rigs and is responsible for acquiring and training staff on its operation. 

Mr. Jensen has added new capabilities to JHA Remediation by added the JHA Drilling Division. He is the lead individual responsible for the business operations and development of JHA’s Drilling Division. He is responsible for protocol implementation, project bidding, field documentation, and health and safety monitoring. Mr. Jensen conducts all marketing and client relations and is involved with the financial direction related to JHA Drilling. Mr. Jensen is responsible for the hiring and firing of JHA Drilling personnel and assists in invoicing and accounts receivable. Mr. Jensen also holds a C57 contractor’s license.

Mike Pedigo

Construction & Demolition

Mr. Pedigo has over 14 years of experience in the environmental remediation field.  Mr. Pedigo has been a Construction Foreman working with numerous clients to install various types of groundwater and soil remediation systems. 

Mr. Pedigo has over 14 years of experience in the environmental remediation field.  Mr. Pedigo has been a Construction Foreman working with numerous clients to install various types of groundwater and soil remediation systems.  These projects include soil vapor extraction (SVE), groundwater pump and treat, dual-phase extraction, oxygen injection, air sparge systems, and sub-slab depressurization (SSD) systems.

As a Construction Foreman, he has a proven record of completing projects on time, within budget, and while ensuring the safety regulations of the industry and that of the clients. He has done this with an outstanding safety record.  He successfully leads multidisciplinary teams to achieve goals while ensuring regulatory and contractual compliance while acting as liaison with clients, vendors, and subcontractors.

He is a hands-on leader who is highly skilled in planning, executing, project communication/documentation, adapting to change, change order negotiations, exceeding quality control, and heavy/specific equipment operations.

Jim Depa

HRSC & Data Visualization

Jim Depa is a geologist and senior project manager. He is a 2005 graduate from the University of Illinois with degrees in Geology and Geographic Information Sciences (GIS).  He has more than 16 years of experience in the environmental consulting field and specializes in creating 3D statistical models to assess complex sites.

Jim Depa is a geologist and senior project manager. He is a 2005 graduate from the University of Illinois with degrees in Geology and Geographic Information Sciences (GIS).  He has more than 16 years of experience in the environmental consulting field and specializes in creating 3D statistical models to assess complex sites.  He has created data deliverables on over 250 environmental investigation projects in 40 states, from routine 3D visuals to multi-million-dollar design remedies.

Specifically, Mr. Depa has created statistically-based conceptual site models from both laboratory analytical results and data from screening tools, helped design over a half dozen thermal remediation systems, calculated the in-situ contaminant mass in soil from one of the largest gasoline spills in United States history, and provided exhibits for three different environmental lawsuits which were integral in either avoiding or succeeding in litigation.

David Jahn

Injection Services Manager

Mr. Jahn is a project/field engineer with over 16 years of experience in the environmental remediation industry. Mr. Jahn has extensive construction, implementation, and operational expertise involving the following remedial technologies: In-Situ Bioremediation, Dual-Phase Extraction, In-Situ Chemical Oxidation & Reduction, Groundwater Treatment, and Soil Vapor Extraction and Treatment. Mr. Jahn also has experience designing soil and groundwater remediation systems, preparing and implementing health and safety plans, and performing and supervising field programs including assessment, construction, and equipment installation. Mr. Jahn has extensive construction, implementation, and operational expertise involving the following remedial technologies: Soil Vapor Extraction and Treatment, In-Situ Bioremediation, Dual-Phase Extraction, In-Situ Chemical Oxidation & Reduction, and Groundwater Treatment. Mr. Jahn has worked closely with The United Sates Navy, State and Local environmental regulatory agencies, including the various Regional Water Quality Control Boards of Los Angeles and Orange County and South Coast Air Quality Management District (SCAQMD).

Environmental Operations Team

Experienced field staff is the backbone of JREM.  While performing one of the myriad of field tasks required to successfully complete any drilling and/or remediation project, our field staff knows how to get the job done.  Our field staff is fully trained and experienced in all aspects of completing remediation projects. 

Biographies and/or detailed resumes can be provided for all personnel upon request.

Daniel Ortiz

Lead DPT
With over 22 years of experience as a Direct Push Technology (DPT) operator, Daniel brings unmatched expertise to every project. He is highly proficient with all Geoprobe® platforms—large and small—and has extensive hands-on experience in soil and groundwater sampling, vapor intrusion assessments, and well installations. His deep understanding of Southern California’s complex soil profiles and groundwater depths ensures precision and reliability in every field operation. From prepack well installations to decommissioning and abandonment, his work reflects a commitment to environmental excellence.

Brock Fedden

Lead Well Development Operator
With 30 years of experience in well development, Brock is a trusted expert in aquifer testing, sediment removal, and well rehabilitation. His skillset includes pump replacement and retrieval, jetting, and precision development techniques that ensure optimal well performance. He brings deep technical knowledge and field-tested solutions to every site. His work reflects decades of dedication to groundwater integrity and sustainable resource management

Jadrian Graves

Lead Injection
Jadrian brings extensive experience in operating specialized equipment for soil and groundwater remediation. He’s skilled in site assessments, real-time process monitoring, and data reporting to ensure treatment effectiveness and regulatory compliance. His collaborative approach with scientists and engineers helps deliver tailored remediation strategies, while his leadership in training and troubleshooting keeps operations safe and efficient.