Charles W. Terrell, CIH, CHMM, REP

President/Technical Director

Charles started Terrell Technical Services, Incorporated, on January 16, 2003. Working from home, the initial intent, was to provide a select group of clients on-call environmental, health and safety support. Within two months, demand had increased to the point that additional employees had to be hired and a commercial office leased. The company has continued with steady growth and diversification of services.

Throughout his early career, Charles was employed by a number of environmental consulting and laboratory firms providing him with broad based experience. Charles was blessed to participate in and manage a wide range of projects, such as EPA compliance air emissions / stack testing, OSHA compliance industrial hygiene surveys, groundwater assessments, soil assessments, underground storage tank assessments, hazardous materials assessments, real estate transaction environmental site assessments and laboratory services.

Charles graduated with a Bachelor of Science degree from the University of Alabama in Huntsville with core studies in Biological Sciences, Environmental Sciences and Chemistry. While attending UAH, he met his future wife and best friend, Debra. They have two sons, Elliott and Eric, Whom are completing science related degrees and are interested in carrying on the family businesses. Charles enjoys spending time with his family fishing, hunting and improving their farms.

Shannon Sutton, CIH, CHMM, REM

Vice-President/Technical Director

Shannon graduated with a Bachelor’s Degree in mathematics from the University of North Alabama in 1992. Shortly thereafter, he completed additional degrees in industrial hygiene and chemistry. After an internship as an industrial hygiene technician at a chemical company, Shannon entered the environmental, health, and safety consulting field where he has remained since 1996. In 2005, Shannon joined Terrell Technical Services as the Vice-President/Technical Director where he has been a part of the company’s rapid expansion.

As Technical Director, Shannon provides guidance to the industrial hygiene and environmental project managers and technicians in the company. Shannon oversees and is actively involved in the anticipation, recognition, evaluation and control of employee exposure hazards including airborne contaminants, noise, asbestos, nonionizing radiation, lasers, combustible dusts, and other health and safety hazards. He has performed extensive occupational risk assessments involving confidence interval, Bayesian, control banding, and other mathematical and statistical exposure assessments as well as dermal exposure and EPA-related risk assessments. He has established quality assurance programs under the ANSI/ISO 17025 standard for the Competence of Testing and Calibration Laboratories as well as performing internal audits for ISO 9001 (Quality Management Systems) and ISO 14001 (Environmental Management Systems. Shannon has experience dealing with issues such as indoor environmental quality, OSHA regulations, EPA and DOT requirements, Phase I and II Environmental Site Assessments, hazardous materials spill responses, Toxic Substances and Control Act, and clandestine methamphetamine laboratory assessment and cleanup.

Shannon and his wife have been married since 2002, and they have two dogs. When he is not working, Shannon enjoys playing tennis, landscaping, playing guitar, and supporting animal rescue organizations.

Neil Matson, CIEC, REM, REPA

Vice President of Operations

Neil has been employed by Safety, Environmental Laboratories and Consulting Services, Inc. (SELC) as the Vice President of Operations since 2006. Upon graduating from Southwest Texas State University in 1999 with a B.S. in Biology, Neil has worked in the environmental consulting field with various engineering firms in North Alabama. Neil has had the privilege of being involved with a variety of projects over the course of his career including ground water monitoring, waste water operations, air emissions / stack testing, industrial hygiene surveys, health and safety, hazardous spill response, and indoor air quality.

Over the past 10 years Neil’s work has primarily been indoor air quality and industrial hygiene related services. While Neil’s current position includes the operations oversight of all aspects of SELC, his day-to-day role is largely as the Senior Project Manager for the indoor air quality division of SELC. Neil is frequently asked to provide expert witness testimony in indoor air quality related cases and speak at various professional organizations about indoor air quality issues.

Shortly after moving to Alabama from Texas, Neil met and married his wife Kimberly, an accomplished professional in the pharmaceutical industry. When not working, Neil enjoys spending time with family and friends – particularly when it involves fishing, hunting, boating, golf, or traveling to new places.

Brad Stiles

Title: Director of Operations

Expertise: Hazardous Material Identification & Assessment Field Services and Consulting Project Management

Experience: Safety Environmental Labs & Consulting, Inc. (SELC) Mr. Stiles is the Director of Operations at SELC and is responsible for the scheduling, coordination, and supervision of all field services, consulting, inspection, and field testing services including but not limited to asbestos field projects, lead, fungal contamination assessment projects, and various industrial hygiene issues. Additional technical support and quality assurance is provided by two full time Certified Industrial Hygienist.

Graduate Education and Training:
Mr. Stiles earned a Masters Degree in Environmental Science Management and Public Administration from Jacksonville State University, Jacksonville, Alabama. While working towards a degree, Mr. Stiles conducted extensive research projects and case studies such as the environmental impact of elemental mercury released from industrial site, as well as environmental effects and byproducts of diesel fuel. Other research included gathering technical data on chemical properties, toxicity, pollution, remediation, and health. He also constructed flow charts for groundwater using computer software (Excel), as well as spatial analysis using GIS software. Special studies on hazardous waste management, risk analysis, integrated waste management, groundwater hydrology, EPA, OSHA, and ADEM regulations were part of the curriculum.

Undergraduate Education and Training:
Mr. Stiles earned a Bachelors of Science in Liberal Studies from Jacksonville State University, Jacksonville, Alabama. Curriculum included chemistry, physics, biology, Earth sciences, human physiology, botany, zoology, and geography.

Training Certifications:

  • Certified and State Licensed Asbestos Inspector - Environmental Training Company
  • Certified Asbestos Abatement Supervisor - The Environmental Institute
  • Certified in NIOSH 7400 Asbestos Fiber Counting Method (582) - Terrell Technical Services Inc. (TTSI)
  • Certified in Radiation Safety and Use of XRF analyzer (Metal identification) The NITON Corporation
  • Certified Hazardous Waste Operations and Emergency Response (HAZWOPER)
  • Certified in Environmental/Microbial identification and Counting Methods - The McCrone Institute of Technology
  • Certificate of Completion of Numerous OSHA Training courses - TTSI
  • Certificate of Completion in Sampling Methods in Industrial Hygiene - TTSI
  • Certificate of Completion in Indoor Air Quality and Fungal Assessment - TTSI

Elizabeth Hyde

Title: Project Manger/ Environmental Specialist

Expertise: Phase I Environmental Site Assessments Hazardous Material Identification & Assessment Field Services and Consulting Project Management

Experience: Safety Environmental Labs & Consulting, Inc. (SELC) Ms. Hyde is a Project Manager at SELC and is responsible for assisting in the scheduling, coordination, and supervision of all field services, consulting, inspection, and field testing services including but not limited to asbestos and lead field projects, fungal contamination assessment projects, and various industrial hygiene issues. Additional technical support and quality assurance is provided by two full time Certified Industrial Hygienist. Ms. Hyde also performs Phase I Environmental Site Assessments (ESA).

SES Environmental, Inc. (SES)
Ms. Hyde was a Senior Environmental Specialist with SES for approximately 11.5 years. Ms. Hyde primarily performed Phase I and Phase II environmental site assessments throughout the continental United States. Ms. Hyde also performed underground storage tank investigation and removal oversight, site restoration, computer modeling, as well as provided technical support on wetland studies and natural resource assessments. Ms. Hyde also conducted asbestos surveys, limited regulatory compliance surveys, limited mold/moisture surveys, and limited lead-based paint testing.

Auburn Wastewater Treatment Plant
Managed analytical laboratory at wastewater treatment plant in Auburn, Alabama, for major water treatment company. Performed laboratory analyses on water, wastewater, and soil in order to maintain compliance with Alabama Department of Environmental Management (ADEM) and NPDES permits. Established a laboratory quality assurance program in accordance with company QA/QC policies.

Graduate Education
Ms. Hyde earned a Masters Degree in Environmental Management from Sanford University in Birmingham, Alabama.

Undergraduate Education and Training
Ms. Hyde earned a Bachelors of Science in Environmental Science from Auburn University in Auburn, Alabama.


  • Asbestos Inspector - Environmental Training Company/The Environmental Institute
  • Lead Inspector – The University of Alabama, College of Continuing Studies
  • Lead Risk Assessor – The University of Alabama, College of Continuing Studies
  • NIOSH 7400 Asbestos Fiber Counting Method (582) - TTSI
  • Mold Assessment and Remediation in Buildings, The Environmental Institute

Accredited/Licensed Asbestos Inspector - Alabama, South Carolina Accredited/Licensed Lead-Based Paint Inspector & Risk Assessor - Alabama EPA Accredited Lead-Based Paint Risk Assessor - South Carolina & Florida

Glenn Ray

Title: Technical Director / Sr. Environmental Consultant / Radiation Safety Officer

Expertise: Hazardous Material Identification & Assessment Hazardous Material Remediation Design & Management

Professional: Registrations Registered Environmental Manager (REM) - National Registry of Env. Professionals Registered Environmental Property Assessor (REPA) - Natl. Registry Env. Professionals Certified Env. & Safety Compliance Officer (CESCO) – Natl. Registry Env. Professionals

Experience: Safety Environmental Labs & Consulting, Inc. (SELC) Mr. Ray is the Technical Director at SELC and is responsible for final quality review ofreports related to Environmental Site Assessments (ESAs) and hazardous material identification reports associated with construction and demolition projects. Commonplace hazardous/regulated materials addressed by these projects include asbestos, lead and lead paint, PCBs, mercury, ozone, depleting substances, radioactive materials, fuels and petroleum products, mold, bacteria, and various airborne contaminants. Mr. Ray also schedules, coordinates, and supervises all consulting, inspection, and field testing services associated with several key industrial and government contracts, as well as conducts safety audits for those contracts. Additional technical support and quality assurance is provided by two full time Certificated Industrial Hygienist.

Shelby Consulting Services, Inc.
Mr. Ray was one of the founders of Shelby Consulting Services, Inc. (SCS). He was responsible for the supervision, coordination, and quality assurance of field surveys, hazard assessments, and remediation design associated with many hazardous materials. His key areas of expertise involved the conduct of Phase 1 ESA’s and the identification and abatement of mold, bacteria, PCB, asbestos, and heavy metal hazards in buildings, industrial facilities, and at undeveloped sites. At SCS, Mr. Ray gained considerable knowledge of industrial hygiene and hazardous material management issues relevant to ESAs, as he was assisted by a CIH and CHMM.

Safety Environmental Laboratories, Inc.
Mr. Ray had essentially the same responsibilities, excluding mold & bacteria, as described above while employed as Consulting Services Manager for Safety Environmental Laboratories, Inc.

American Testing & Engineering Corporation (ATEC)
Prior to Mr. Ray's employment at SEL, he worked at the Birmingham, Alabama branch of ATEC (currently ATC Environmental), a national firm specializing in construction material testing, geotechnical engineering and environmental engineering. While employed at ATEC, he worked with hazardous materials and performed Phase 1 ESA’s under the supervision of Professional Engineers and Geologist. He also assisted with the conduct of Phase 2 ESAs. During these years, Mr. Ray also gained considerable experience with a variety of hazardous material, industrial hygiene, and indoor air quality services performed under the direction of an ABIH Certified Industrial Hygienist (CIH).

EMJ Corporation:
Mr. Ray was employed by EMJ Corporation as a Site Superintendent. That position was tasked with responsibility for supervision of all general and subcontractor site preparation activities involved in developing a 183 acre site with a multi-level mall, two strip shopping centers, one interstate bridge, several interstate ramps, and multiple city street and utility improvements. Considerable knowledge of site development issues, many of which are useful to the conduct of ESAs, was gained during this period.

American Testing & Engineering Corporation (ATEC)
While Mr. Ray was employed by ATEC, he worked on many projects to inspect and monitor site development and building construction activities. During the conduct of those duties he became familiar with numerous soil and rock conditions and the fundamentals of geology, which has instrumental to his ability to conduct ESAs.. He also became familiar with common construction techniques which has been a major asset to his ability to identify hazardous materials in buildings, including PCBs, mercury, asbestos and lead-containing materials.

Training Certifications:

  • Phase 1 Environmental Site Assessments - The Environmental Institute
  • Wetlands Delineation (Army Corp of Engs.) - Richard Chinn Environmental
  • OSHA 40 Hour HAZWOPER - Hendrix Enterprises
  • Mold Remediation Specification Designer - Environmental Solutions Association
  • Asbestos Building Inspector - Univ. of Kansas (National Asbestos Training Center)
  • Fundamentals of Industrial Hygiene - Terrell Technical S.I.
  • Lead Based Paint Inspector - The Environmental Institute
  • Asbestos Abatement Project Designer - Univ. of Florida (TREEO Center)
  • Introduction to Lead Abatement - Env. Training Corp.
  • Asbestos Management Planner - Georgia Institute of Technology Introduction to Indoor Air Quality Assessments - Terrell Tecnical S.I. Sampling & Evaluating Airborne Asbestos - UAB Occupational & Health Center Lead Based Paint Risk Assessor -
  • The Environmental Institute Soil Density / Moisture Testing & Basics of Radiation Safety - Troxler Corp.
  • Lead Paint Testing & Basics of Radiation Safety - Warrington Inc., & Niton Corp.
  • Lead Based Paint Abatement Supervisor - The Environmental Institute
  • Lead Based Paint Abatement Project Designer - Greenville Technical College
  • Asbestos Abatement Supervisor - Tulane University
  • Mold Remediation Worker - Environmental Solutions Association
  • ISO 14001 & Env. Regulatory Overview Workshop - The Univ. of Alabama in Huntsville
  • Occupational Noise Exposure Measurement Seminar - 3M Quest Technologies.