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David Charlesworth
Certified Industrial Hygienist

image of David Charlesworth

With a degree in Biology and Master’s work in Toxicology, Mr. David Charlesworth has extensive experience including safety and environmental health in construction and industrial applications, as well as teaching environmental subjects in a class setting.

Mr. Charlesworth has been in the safety and health field since 1985 and established his consulting business in 1994.  He currently manages a staff of six people across the Southwest Region and resides in the Albuquerque New Mexico area.

As a Certified Industrial Hygienist (CIH), Mr. Charlesworth has extensive knowledge in workplace exposure assessments, along with EPA training in hazardous waste operations.  He has performed a major part of his career overseeing hazardous waste remediation activities and asbestos abatement. He has provided extensive consultation in occupational safety and health for the health care industry, government entities and manufacturing entities across the United States.  Mr. Charlesworth is certified with the American Board of Industrial Hygiene.

David Charlesworth holds additional certifications as an:

  • Mold Inspector
  • Lead Assessor
  • Lead inspector
  • OSHA trainer
  • EPA Accredidated Trainer
  • Asbestos Building Inspector 

Mike Martin
Certified Safety Professional

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Micheal D. Martin, CIH, CSP

Micheal Martin is the Chief of Safety for the Phillips Research Site on the Kirtland Air Force Base in New Mexico.  He is the Certified Safety Professional of AEIH / DC Environmental.  Mr. Martin was awarded the Bachelor of Science Degree in Mechanical Engineering from South Dakota School of Mines and Technology in Rapids City, South Dakota.  Currently working on his Master’s in Safety while being honored with numerous safety awards from the Air Force.

Mr. Martin has dual certifications in safety and industrial hygiene.  In performance of his duties as Officer in Charge of the Environmental Protection Section of the Air Force he has responded to each chemical release personally.  Radiological research system support has augmented his response team resume along with the review and over site of the chemical weapons laser research facility on the Air Force Base.  Chemical optics uses concentrated Hydrogen Peroxide, Fluorinated products and cryogenic gases.  Each of these materials has presented knowledge and experience in the area of Emergency Management, Incident Command System implementation and Health and Safety Program implementation.  This experience he brings to the classroom to highlight areas unfamiliar to even the most seasoned safety and health professional.

Mr. Martin has taught several hundred students in the military, private sector and government agencies.  He is regarded as a System Safety expert and has implemented system safety in the materiel command venue on projects ranging from Space Vehicle Directorate and Directed Energy (Star Wars Era) research.  He is very knowledgeable on Radiation Safety, Radiofrequencies, Microwave and a variety of laser technologies.

Mike was a combat engineer in his early career with a Civil Engineering emphasis leading to remediation of environmental issues and heavy construction earth moving operations.  Clearance of mine and combat obstacles; road and bridge construction and deconstruction; and environmental impact of infrastructure clean-up operations.  He has assessed and monitored various projects and has knowledge of energy measurement, water quality sampling and physical stressor monitoring of personnel (Heat/cold, thermal, radiant, and ergonomic hazards)  

Mike is an avid mountaineer and volunteers as a snow ski emergency patrol member.  He lives with his wife and dogs in the mountains of the Albuquerque area where he trains in high altitude hiking and rescue activities. 

Karen Dremann
President, Senior Scientist


Karen Dremann is the President of DC Environmental and manages the day to day operations of the company. She is responsible for estimates, project timelines, project scheduling, scheduling of Certified Industrial Hygeinists, Industrial Hygeine Technicians, and all employees. Ms. Dremann is a Honors graduate of the University of New Mexico, Magna cum laude, with a Major in Biology and a Minor in Environmental  Science. She brings fifteen years of experience in the  Environmental consulting and training field.

Jeffrey Biedenbach
Trainer, Asbestos and Lead Inspector and Industrial Hygienist

Mr. Biedenbach, is an environmental and safety trainer, a Lead and Asbestos Building inspector, an industrial Hygienist, and is DC Environmental's ROS. He brings 23 years of experience from the U.S. Navy Nuclear power Program, including 2 years in Nuclear Repair, 4 Years in RADCON, over 17 years in Quality Control, and over 20 years supervising various emergency response teams. Over 14 year’s involvement with safety, and safety training since 2001. Currently holding 4 asbestos accreditations (Contractor Supervisor, Building Inspector, Management planner, and Project Designer), Accredited as an Asbestos Instructor. He is also an OSHA general safety Instructor, an American Heart Association CPR and First-aid Instructor. Jeff Biedenbach is certified as a Hazmat Responder and Hazmat Supervisor, Lead Inspector,and  Mold Inspector.


James Calvert
Industrial Hygiene Technician

Mr. Jim Calvert is one of DC Environmental's Industrial Hygiene Technician. He is also an certified Asbestos and Lead Inspector. Jim Calvert has experieice in well monitoring and has worked in the environmental field for over 20 years.

Steven Gutierrez
Industrial Hygienist Technician/ Project Manager

Steven Gutierrez brings fifteen years of experience as an Industrial Hygiene Technician and Project Manager to the DC Environmental family. Mr. Gutierrez is an certified Asbestos and Lead Inspector with strong attention to details both on the job sight and in his final reports.