
Meet The Team
Meet the Asphalt Testing Solutions &
Engineering Team
The ATS team has combined experience working in numerous positions from Bituminous Manager to Independent Verification Inspector. Click on the team members' pictures to learn more about them!
Our technicians are certified in:









Steve McReynolds
Director of Operations


CTQP Asphalt Plant Level 1, CTQP Asphalt Plant Level 2, CTQP Asphalt Paving Level 1, CTQP Asphalt Paving Level 2, CTQP Asphalt Mix Designer, CTQP QC Manager
Considered the “Asphalt Technical Expert” Steve McReynolds brings over 20 years of industry knowledge as the Director of Operations for Asphalt Testing Solutions & Engineering. As the District 5 Bituminous Coordinator and District 2 Bituminous Manager during his tenure with the FDOT, he is known for his consultative and technical advice which provides strategic problem solving with a variety of solutions.
Steve is contracted by Duval Asphalt, an asphalt mix producer and paving contractor, as its QC Manager. His broad spectrum of construction knowledge and extensive application of project Specification requirements makes him a valuable resource to ensure customers are always compliant with state and local government regulations.
In his free time, Steve enjoys spending time with his family and fishing.
Tanya Nash, PE
Director of Engineering


CTQP Asphalt Mix Designer, CTQP QC Manager
Nationally known for her dedication and contributions to the industry, Tanya is a reputable addition to the ATS team. Throughout her 20 years in the industry she served on many state and national committees and research projects expanding her knowledge in asphalt properties and characteristics nationwide. Exposure to international specifications and test methods led Tanya to experience the vast uses and challenges of asphalt pavements and products worldwide.
Tanya was instrumental in the development of PG Binder Specifications for recycled materials as well as the QC program for Florida’s Asphalt Liquid Suppliers. She was also involved in the development of an alternate binder specification making ground tire rubber and polymer modified binders a market driven product.
Tanya was also a driving force in the development and maintenance of the Florida DOT’s Asphalt Construction Data Management System. Her technical insight paired with her experience in research and field operations provides ATS customers with meticulous reporting after completing site investigations and forensic analysis cases.
Tanya graduated from the University of Florida with a Bachelor of Science degree in Engineering Science & Biomechanics and a Master of Science degree in Biomedical Engineering. When she’s not at work Tanya enjoys training in Martial Arts and playing soccer with her husband and daughter. Her bucket list includes “traveling around the world to find that perfect craft beer.”
Quality Control / Quality Assurance Team
Derek Bennett
Quality Assurance Roadway Manager


Derek has spent over ten years in the industry as a roadway and plant inspector and is certified in CTQP Asphalt Plant Levels 1 & 2 and CTQP Asphalt Paving Levels 1 & 2. He has worked for ATS since its inception. “I have seen it grow from three employees to a whole team of highly skilled professionals.”
Prior to working in the asphalt industry, Derek was active in promoting American roots music around the Jacksonville Beach area working with local and internationally touring bands. When he’s not at work, he enjoys spending time with his amazing wife Amanda and their three daughters.
John Holton
Quality Assurance Lab Manager


After serving our country for 22 years in the United States Marine Corps, John began his career in the asphalt industry. He has held numerous positions including Verification Technician, Verification Coordinator, Quality Control, Independent Verification and Bituminous Production Coordinator.
John is certified in QC Manager, Asphalt Paving Levels 1 & 2 as well as Asphalt Plant Levels 1 & 2. He spent 14 years in the industry, most recently working for the Florida Department of Transportation, and brings his knowledge and experience to ATS.
John remembers his first job when he was just a kid. “On the weekends my mom and I would drive around with the lawn mower looking for yards that needed to be cut. From there I built my customer base and had lawns scheduled to cut every weekend!”
When John isn’t working he enjoys spending time with his grandkids.
David Bone
Laboratory Specialist


David, better known as T-Bird, has been sharing his talents with the asphalt industry for over 25 years. He started as a Ground Man, shoveling and cleaning, and since then added Loader Operator, Ticket Writer, Plant Operator, Plant Foreman, Truck Foreman, Lab Technician and Mix Designer to his resume.
Before he joined the asphalt industry, T-Bird worked in hay fields, baling and loading hay. No stranger to hard work, he has since earned a Bachelor of Science degree in Criminal Justice and Zoology and is certified in Asphalt Plant Levels 1 & 2 as well as Asphalt Mix Design.
In his downtime, T-Bird enjoys riding his Harley and spending quality time with his family.
Julian Castro
Laboratory Specialist


Julian Castro is a Laboratory Specialist at ATS certified in Asphalt Plant Levels 1 & 2. Julian was destined to work with aggregates as he earned his BS in Geological Engineering and his MSc in Production Geology! Prior to working in the asphalt industry, Julian spent over forty years in the oil industry in various technical and executive positions.
Kendell Hulett
Laboratory Specialist


Kendell Hulett joins the ATS team as a Laboratory Specialist. His very first job was washing dishes at a seafood restaurant – not a far cry from washing aggregates in the QC lab! When he’s not working Kendell enjoys spending time with his wife and friends, playing the guitar and making music. Fun fact, Kendell can solve that Rubik’s cube you’ve been working on forever!
Jessica Gray
Laboratory Specialist


Although she has no previous experience in the asphalt industry, Jessica has embraced her role in the ATS QC lab and earned her CTQP Asphalt Plant Level 1 certification not long after she started and shortly after, added her CTQP Asphalt Plant Level 2 certification. While she works hard in the lab, she plays hard in her free time too! She is a Christian and enjoys sharing the gospel with others, and she loves to play pool and competitive volleyball. Jessica enjoys working out and, fun fact, she can bench press 215 pounds!
Parker Miller
Laboratory Specialist


Parker Miller joined the ATS team as a Laboratory Specialist. With two years’ experience in the construction industry working out on the roadways, Parker is embracing his role in the lab. Prior to this industry Parker played college golf, and his first job was at a golf course. When he’s not working, you can usually find him fishing.
Tanner Nestle
Laboratory Specialist

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Tanner Nestle joins ATS as a Laboratory Specialist. While he is new to the asphalt industry, he is not new to learning new skills! Tanner has earned his BA in Mass Communication and also has earned a level 2 certification in Wine from the Wine & Spirits Education Trust.
When he’s not working, Tanner enjoys spending time outside with his wife and daughter.
Landon Keith
Asphalt Roadway Specialist

Zara Koerber
Asphalt Roadway Specialist


Zara brings a great deal of experience to the ATS team as its Asphalt Roadway Specialist. While most of her focus will be handling quality control at the road as a CTQP Asphalt Paving Levels 1 & 2 certified technician, she is also certified in CTQP Asphalt Plant Levels 1 & 2, Earthworks 1 and QC Manager. She began her career over five years ago working for an asphalt contractor and engineering firm. Well versed in DOT and FAA standards and specifications, she has worked on a multitude of projects from state jobs and airports to private jobs at Walt Disney World.
Corbett Reynolds
Asphalt Roadway Specialist


For over 30 years Corbett has been a key player in the asphalt industry, working as a Field Technician and Field Services Director out on the roads. He started his career with Cal-Tech Testing in 1986 and now brings his experience and talent to ATS. He currently holds Asphalt Paving Levels 1 & 2 certifications and has earned Earthwork Levels 1 & 2, ACI Concrete Field Testing, FDOT Concrete Field Inspector, Nuclear Safety and Qualified Sampler Technician certifications in the past.
Corbett’s drive and work ethic dates back to when he was just 15 years old. He earned his GED at this time and went out in the world to work on a cattle ranch in south Texas where he grew up. He worked for the famous Bum Philips (former head coach of the Houston Oilers and New Orleans Saints).
When he’s not working, Corbett loves spending time with his family and friends. He loves to bow hunt deer, fish benefit tournaments and ride the trails with Jeeps and 4-wheelers. Before he and his wife had their son, he was a semi-professional fisherman in the Red Man and FLW tournaments!
Jamie Trull
Asphalt Roadway Specialist


With five years experience on the roadways and building sites, Jamie Trull joins the ATS team as an Asphalt Roadway Specialist. He earned his Asphalt Paving Levels 1 and 2, Earthworks Level 2 and FDOT Concrete Field Inspector certifications along with formal education in electrical and biomedical engineering.
When he’s not at work Jamie is involved with youth ministry through his church. He enjoys spending time with his family cooking on his smoker, fishing with his boys and playing guitar and singing with his girls. No stranger to music, Jamie spent time after high school touring with bands including Limp Bizkit!
Jacob Wilson
Asphalt Roadway Specialist


Certified in CTQP Asphalt Paving Level 1 and Asphalt Paving Level 2, as an ATS Asphalt Roadway Specialist, Jacob has seen his fair share of excitement while providing quality control services out on the road. One incident included an accident where the perpetrator exited his vehicle and attempted to flee the scene! (This is a perfect time to remind anyone reading this to slow down in work zones and watch out for our crews!)
When Jacob is not at work he enjoys working on his truck, playing pool and hanging out with his friends. If you’re lucky, he’ll show you his party trick – he can juggle fire!
Ben Hunt
Asphalt Roadway Specialist


Ben joins the ATS team with over 15 years of experience inthe paving industry. He started on paving crews as a laborer, then an equipmentoperator, and then was promoted to foreman. With all his time working on pavingcrews, Ben’s experience will prove valuable in his role as Asphalt Roadway Specialist.
When Ben’s not at work he enjoys spending time with his family. He loves playing games to unwind especially strategy games to keep his mind sharp – this helps with problem solving on the job site!
Performance Lab / Asphalt Mix Lab Team
Gerad VanHoosier
Performance Lab Manager


Gerad VanHoosier joins the ATS team as a Performance Lab Technician. While he is new to the asphalt industry, Gerad is embracing his role in the lab and is certified in Asphalt Plant Level 1. With previous experience in manufacturing, fabrication and masonry, Gerad is no stranger to working with his hands. He moved from Ohio to Florida to join the team, which are two of seven states in which he’s resided over the years. When he’s not working, Gerad enjoys spending time with his wife and kids as well as gardening, fishing and hunting.
Katherine Hernandez
Aggregate Specialist


No stranger to the asphalt industry, Katherine joins the ATS team from Duval Asphalt! She worked on the paving crews at Duval Asphalt as a roller operator, laborer, and forklift operator.
Katherine is a certified Forklift Operator and Class I, IV and V Warehouse forklift Operator.
When she’s not at work, Katherine enjoys hiking, and those who know her, knows she loves Batman!
Coti Drayton
Aggregate Specialist

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Working in the asphalt industry is an exciting change from retail for Coti. He joins the ATS Performance Lab as an aggregate specialist where he’s eager to learn about the industry. With an entrepreneurial spirit, he will be a great asset to the team; knowing he wanted to buy a car when he turned 16, young Coti worked to sell his shoes and made over $10,000! It should be no surprise to learn he was able to buy his first car!
David McNabb
Asphalt Mix Designer


“I didn’t pick asphalt for a career, asphalt picked me,” David said. He began his career in the asphalt industry in 1996. At this time his wife was pregnant, and he needed a job with insurance. It was meant to be a temporary position, but “25 years later, here I am.”
Before his career in the industry, David had a job where he wore a shirt and tie to work every day. “I don’t miss those days,” he said. He earned his Associates degree in Business from Hiwassee College and his Bachelor of Science in Business from Tennessee Wesleyan University. He has worked in numerous positions in the asphalt industry from laborer to QC technician to mix designer. He is certified in Asphalt Plant Level 1, QC Manager and Asphalt Mix Designer. He was a mix designer in Tennessee, Virginia, South Carolina, Georgia and Florida.
When David isn’t working he enjoys going to church, real estate and college football (Go Vols!). He loves cars and has a ‘72 El Camino, an ‘87 El Camino SS, and a 2015 Dodge Challenger SRT which he claims is his mid-life crisis car!
Caleb Mathews
Asphalt Mix Designer


Certified in CTQP Plant Level 1 and Plant Level 2, Caleb Mathews joins the ATS team in the Quality Control Lab. Prior to working at ATS Caleb played college basketball for Faulkner University before transferring to Liberty University where he graduated with a degree in business administration. When he’s not at work Caleb enjoys playing video games and working out.
Cameron Collette
Performance Lab Technician


Cameron joins the ATS team as a Performance Lab Technician.Fun fact, he can juggle, which will prove valuable in managing multipleprojects simultaneously in the performance lab! Cameron has his automativecertification earned through Chattanooga State Community College, and when he’snot at work, chances are, you can find Cameron outside. He enjoys hiking,skateboarding and mountain biking as well as driving and working on his 350z.
Eddy Leeper
Performance Lab Technician


Joining the ATS team from Texas, Eddy first started workingwith asphalt when flipping houses through an investment company. Now working inthe lab, he has a better appreciation for the product! When he’s not workingEddy enjoys playing soccer, working out and reading. He says, “most people findit boring, but I love reading!” He also loves watching sports – especially whenthe Mavs are playing!
Binder Lab / Emuslion Lab Team
Sonia Serna
Asphalt Binder Lab Manager


Certified in NICET levels 1 & 2 and the Asphalt Institute’s National Binder Technician Certification, Sonia Serna brings over 31 years of asphalt industry experience as the Binder Lab Manager at ATS. After college (Windward Community College in Kaneohe, HI) Sonia worked for IPR (International Plant Research) with a variety of orchid plants. She transitioned to the asphalt industry (and the mainland) working as PRI’s very first asphalt technician. Acronyms seem to play a big role in Sonia’s life having worked at IPR then PRI now ATS, and she plans to continue working in the industry until she is RIP (retired in peace)!
When she’s not at work, Sonia enjoys being outdoors: walking or running, enjoying the beach and boating. She loves football season and watching NFL games, and she also enjoys taking ballroom dancing classes!
Renee Gordon
Asphalt Binder Technician


Renee joins the ATS team as a Binder Lab Technician. While this is her first time working in an asphalt binder lab, she is no stranger to lab work. Her first job was working as a lab assistant at the University of South Florida (USF) Department of Chemistry, and during her last semester working at a university lab, one of her students started a chemical fire, that luckily, she was able to extinguish!
Renee earned her BS in Health Sciences/Psychology from USF and her MS in Forensic Science from Saint Leo University. She is a certified National Binder Technician by the Asphalt Institute. When she’s not at work, Renee loves to engage in any athletic activity – she’s a trained boxer!
Rebecca Kohl
Asphalt Binder Technician


Rebecca Kohl joins the ATS team in the Binder Lab. While she is new to the industry, she is not new to customer service which will prove valuable in her role as an Asphalt Binder Technician. While working full time in the lab, Rebecca earned her degree in Forensic Investigations from Keiser University!
When she’s not working, Rebecca enjoys playing games, reading and listening to crime-related podcasts! Fun fact about Rebecca, she is in the 10% of people in the world who are left-handed!
Joshua Suddath
Asphalt Binder Technician


Earning his degree in Biological Engineering, Josh is no stranger to working in labs. This will prove valuable in his role as an ATS Asphalt Binder Technician. When he’s not working he enjoys driving his stick shift car(not so common these days!) as well as gaming and watching movies and tv.
Administrative
Dawson Padgett
Client Manager


Dawson began his career in the asphalt industry as a Performance Lab Technician at ATS Jacksonville and now manages the operations of the Performance Lab.
He is certified in AI Mix Design, Asphalt Plant Levels 1 & 2 and ACI Aggregates.
Dawson’s experience managing multiple projects simultaneously brings great value to this role, as does his experience testing and analyzes a multitude of research projects for ATS customers over the years.
When Dawson is not at work, he likes to spend time with his family, build and race cars and go fishing.
Molly Berry
Marketing & Business Development


Molly earned her advertising degree from Marquette University and has been in marketing roles in various industries throughout her career. She joined the Asphalt Testing Solutions & Engineering team about three years ago with no experience in the asphalt industry and has embraced all opportunities to learn more about it. She spent her first year working in the lab and on the roadway to get hands-on experience and earned certifications in Asphalt Paving 1 & 2, Asphalt Plant 1 & 2, Mix Design and Intermediate MOT. “Taking time to apply the skills and knowledge I learned to get certified in the lab and in the field definitely helps me in my current position!”
When she’s not at work, she enjoys traveling, playing tennis and golf, going to concerts and cheering on her Wisconsin teams.
Shawna Kovacs
Admin Support Specialist


Although Shawna is fairly new to the paving world, she brings over 20 years of experience in the construction industry. She has worked in an administrative role in building remodels, new construction and restaurants. She’s carried her strong work ethic with her from her very first job at Ryan’s Steak House; she was promoted from hostess to head waitress in just two weeks!
Poor Shawna was trapped in the back offices when she first came to work at ATS. “I didn’t have the code to get out, and I didn’t know anyone’s extension to call for help!” There was a nasty thunderstorm outside at this time, so she had to wait for the storm to stop or someone to find her. About 30 minutes later, an employee walked by and was able to let Shawna out!
This self-proclaimed “big kid” enjoys surfing with her family and traveling to foreign countries when she’s not at work.
Dallas Little
Commercial Consultant
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With over 25 years of experience in the asphalt, transportation, and infrastructure industry, Dallas Little, PE, brings a wealth of knowledge and expertise to the ATS team as a Commercial Consultant. He began his career as an asphalt lab manager in San Antonio, Texas, before advancing to a product development manager. He then transitioned from the lab to product development, commercial management, and entrepreneurship, owning and operating three industry-related companies over the course of this career.
Focusing on consulting in construction materials-based engineering design and analysis as well as business and commercial development throughout his career, Dallas will play an instrumental role in relating to and supporting the diverse ATS customer base.
Dallas earned his Bachelor of Science in Civil & Environmental Engineering and his Master of Science in Civil & Materials Engineering from Texas A&M University. He earned his Master of Business Administration from McCombs School of Business, The University of Texas at Austin and is a licensed Professional Engineer in the state of Texas.
When he’s not working, Dallas enjoys coaching his son’s sports teams, following collegiate athletics, cooking, and staying actively involved in the church. He also has a passion for wine and offers educational programs, tastings, and personalized recommendations!