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    Your Full-Service Lake Management Team

    Meet The Southwest Team: 

    Central Texas | East Texas

    David Ellison

    Director of Lake Management 
    South, Southwest & Midwest


    David Ellison is an aquatic biologist with the SOLitude Lake Management team who serves as the director of lake management for Texas. He oversees many of SOLitude's large projects focusing on invasive species control, and has developed programs for Chincoteague National Wildlife Refuge, Fisherman's Island Wildlife Refuge and Ft. Eustis, to name a few.  

    Dave is a certified pesticide applicator for turf, aquatics and public health in Virginia, North Carolina, South Carolina, Delaware, West Virginia, Maryland, Pennsylvania and New Jersey. He is also a certified AquaMaster and Aqua Control Technician, a SePRO Preferred Applicator and a certified Stormwater Inspector. His participation in regular continuing education programs keeps his industry knowledge current with the latest technological trends.

    Dave is a graduate of Old Dominion University with a Bachelor of Science in Biology. Prior to joining the SOLitude Lake Management team, Dave was employed as the assistant superintendent for an area golf course. During his years there, he was a licensed pesticide applicator for turfgrass. This experience, coupled with his education, make him a valuable and knowledgeable leader at SOLitude.

    Like most of the SOLitude Lake Management team, Dave enjoys being outside and particularly enjoys the ocean. During his time off, you will often find Dave on the beach. He is an avid surfer, enjoys spending time with his family.

    Contact Dave

    Patrick Mefferd

    Regional Manager 

    patrick-mefferd-webPatrick Mefferd joined the SOLitude team in January 2019 as the regional manager in Texas. Patrick has nearly two decades of management experience and is responsible for leading the operations of SOLitude’s Bryan and Tyler offices.

    Patrick graduated from Union Institute & University with a Bachelor of Science degree in Emergency Services Management. He has extensive experience supervising and managing teams in different industries, including customer service, hospitality, travel, transportation and maintenance.

    Previously, Patrick spent two and a half years with DBi Services, where he managed highway and interstate projects, ensuring that they were completed on time and within budget. In this role, Patrick focused on project development, resource allocation, and client management, and gained experience leading vegetation management projects throughout the state of Texas. Before DBi Services, Patrick worked for more than 11 years with Avis Budget Group in locations throughout Texas, California and Nevada.

    Patrick’s first experience with the environmental industry began at the age of 16 with the Department of Parks and Recreation for the State of California, where he served as a Senior Park Aid. The role taught him valuable lessons and spurred his love for the outdoors. Now, Patrick resides in Waco, TX. Outside of work, he can be found traveling to the beach or mountains with his wife, Carol. Often, their travels take them back to his home state of California where his kids currently attend school and work

    Contact Patrick

    Dustin Vassar

    Regional Sales Manager 

    Dustin_VassarDustin Vassar is a regional sales manager serving SOLitude’s clients in the Southwest. Dustin is responsible for helping the team build relationships with clients in the region as SOLitude continues to grow.

    Dustin comes to SOLitude with an extensive background in new business development. He worked with Ricoh USA, based out of Dallas, Texas, where he was a top contributor in the marketplace. Prior to coming to SOLitude, Dustin worked as a business performance advisor for Insperity in Irving, TX. At Insperity, he was responsible for determining ways to help small businesses succeed, such as reducing administrative costs, attracting and retaining top talent, and shaping company culture.

    Dustin is originally from Arlington, TX, and attended the University of Texas at Arlington where he studied Business Finance. Dustin is a member of Toastmasters International where he serves his club as VP Membership and enjoys helping new members with their public speaking skills.

    Dustin spends his free time drag racing, playing golf, being outdoors with family and friends and staying active at his CrossFit gym.  

    Contact Dustin

    Cole Kabella

    Business Development Consultant 


    Cole Kabella is a business development consultant with nearly a decade of experience developing relationships with clients across Texas and educating them on the importance of sustainable and proactive lake, pond and fisheries management solutions.

    Cole has a special interest in fish stockings, fish transporting and acclimating fish into clients’ lakes and ponds. He also has an extensive background in the control of aquatic vegetation growth and maintaining and enhancing the aesthetics of the habitat.

    Prior to joining SOLitude, Cole graduated from Texas A&M University with a bachelor's degree in Wildlife and Fisheries Services. During his time at A&M, he traveled to South Africa where he was able to spend a semester of his studies. On this trip, he met the woman that he would later call his wife. They both returned home and continued learning until they graduated in 2013.

    Cole grew up in Liberty Hill, TX, where he participated in the Boy Scouts of America and achieved the rank of Eagle Scout. In his free time, Cole enjoys spending time outdoors. His hobbies include hiking, backpacking, camping, swimming and shooting.

    Contact Cole

    Joshua Jones

    Business Development Consultant 

    Josh Jones - web-1Joshua Jones is a business development consultant who serves clients throughout the Dallas/Ft. Worth, TX area, Oklahoma, Arkansas, and Louisiana. Josh works closely with SOLitude's southwestern teams to educate clients about sustainable aquatic management strategies and ensure their long-term lake and pond goals are met. 

    Josh has nearly 15 years of account management experience, and began his career serving clients in the auto industry. Josh's love for lakes and ponds began when his great grandfather told him stories about all of the giant fish at their farm pond.

    Josh is married with two daughters and one more due in October. He's a relentless bass angler who also enjoys training Brazilian Jiu Jitsu and watching UFC.

    Contact Joshua

    Central Texas 

    Logan Cowan

    Wildlife and Fisheries Biologist


    Logan Cowan is a fisheries biologist working out of SOLitude’s Texas office. Logan helps develop individualized lake, pond and fisheries management plans for new and existing clients, and has a special interest in analyzing fisheries data from electrofishing surveys.

    Logan earned his Bachelor of Science degree in Wildlife and Fisheries Sciences from Texas A&M University and is certified in Aquatic Pest Control in the state of Texas. After graduation he gained experience as a wildlife removal specialist in the greater Houston area before joining SOLitude in 2014.

    Growing up along the Gulf Coast, Logan acquired a great appreciation for the outdoors and the beauty of the aquatic environment. He has enjoyed many years fishing the pristine flats of the Lower Laguna Madre and hunting the waterfowl of the lower Texas Coast. Logan is married to his wonderful wife Kelsey with whom he enjoys spending time walking with along the beach, camping and fishing. He is an avid outdoorsman who enjoys pursuing better management through science as he seeks to steward our most precious natural resources.  

    Contact Logan

    Zach Luttrell

    Wildlife and Fisheries Scientist 

    zach-luttrell-webZach Luttrell is a wildlife and fisheries scientist focused on enhancing freshwater resources for clients throughout Central Texas. Zach is knowledgeable about habitat management, prey-predator ratios, supplemental feeding, stocking and other strategies used to cultivate healthy, productive fisheries. 

    Zach earned a degree in Wildlife and Fisheries Science from the University of Tennessee Knoxville. Prior to joining SOLitude in the fall of 2018, he gained valuable industry experience working with the US Fish and Wildlife Service. 

    Zach is an avid angler and deer hunter. he loves sports and follows the Tennessee Volunteers regularly. He often spends his spare time outdoors hiking or enjoying the lake in Knoxville with his family. 

    Contact Zach

    Robert Callaway

    Aquatic Specialist

    robert-callaway-webRobert Callaway is an aquatic specialist who has been with SOLitude since 2007. He works with clients to develop comprehensive lake and pond management goals and has thorough experience in fish hauling and stocking techniques.

    In addition to being a licensed commercial pesticide applicator, Robert is a certified service technician through Otterbine and AquaMaster. Robert uses his industry expertise to keep projects on track and serves as a knowledgeable resource for clients across SOLitude’s Southwestern market.

    Robert is a graduate of Franklin High School where he participated in a number of sports including football, basketball, track, golf and baseball. He's also a father of two and enjoys spending time with his family through fishing and playing various sports. 

    Contact Robert

    Ryan Young 

    Aquatic Specialist

    ryan-young-web-newRyan Young is an aquatic technician based in SOLitude's Texas market. He focuses on creating healthier aquatic ecosystems for clients and provides a complete range of lake and pond management services, including lake mapping, fisheries management and fountain and aeration solutions. He also has a special interest in bass angling, mapping, vegetation management and fisheries management.

    In 2009, he graduated from Texas A&M University with a Bachelor of Science degree in Poultry Science. He was a member of the university fishing team and competed in local and national collegiate bass fishing tournaments. As an avid outdoorsman Ryan worked began working as a student for Gander Mountain. He joined the company as a camping associate and worked his way up to a supervisor of firearms, and later, fishing, before joining SOLitude in 2015.

    Ryan was born and raised in Houston, TX. At age nine, Ryan joined the Boy Scouts of America where he developed his love for the outdoors and his value of community service and hard work. In his free time you will find Ryan on the lake with his trusty side kick, Bear, or making rods and custom baits for finding monster fish. 

    Contact Ryan

    Joshua Hendrix 

    Aquatic Specialist


    Joshua Hendrix is an aquatic specialist who serves clients in Bryan, TX and surrounding areas. He joined the SOLitude team in November 2018 to help clients meet their lake and pond goals and is a knowledgeable resource for property owners throughout the region.

    Joshua has extensive aquatic management experience. Prior to joining SOLitude, he worked for 2 years at a professional lake management company in Texas and served as a lake and property manager for a well-known ranch in the area.

    Joshua was raised in New Waverly, TX where he gained a love for the outdoors. He is an avid duck hunter and 15+ year tournament bass angler. He is a father to two boys (and one on the way) with his wife, Lauren.

    Contact Joshua

    East Texas 

    Daniel Meeker 

    Aquatic Specialist 

    daniel meeker - web

    Daniel Meeker is an Environmental Scientist who is passionate about fisheries management and protecting the environment. He is experienced in water quality testing, aquatic weed management and other solutions—and continues to expand his knowledge of sustainable aquatic management techniques.  

    Daniel has helped implement lake and pond management projects for clients of all types. Most notably, he was involved in an invasive species control effort at a large, high-profile reservoir in Athens, TX. He has also worked closely with SOLitude’s team of Fisheries Biologists to diagnose, identify, and maintain fish populations for private lakes. His efforts have been helpful in allowing pond owners to maintain their prey to predator populations and identify malnourishment issues.

    Daniel has many years of experience in several technical fields, from radiographer, electrician assistant, loss prevention and 8 years serving in the US Army. Prior to joining SOLitude, Daniel worked as a Laboratory Coordinator at a well-known environmental engineering firm. There, he coordinated daily work for concrete and soil sampling for clients throughout East Texas.

    In his spare time, he serves as a member and compete for the Athens Bass Club, Army Bass Anglers, and FLW. He can often be found on the lake or spending time with his wife and two young children. Daniel has many other hobbies, including hunting, watching Texas A&M football, grilling, and listing to Texas country music.

    Contact Daniel

    Jason Regester 

    Aquatic Specialist 


    Jason Regester is an aquatic specialist who has serviced clients in SOLitude’s southwestern market since 2007. Jason is experienced in all aspects of water quality testing and restoration, algae and aquatic weed control, fish habitat management and a multitude of other aquatic management services, and takes a special interest in enhancing fisheries through electrofishing surveys and data comparison.

    Jason received his Bachelor of Science degree from Sam Houston State University in Huntsville, and is dedicated to continuously expanding and sharing his industry knowledge with SOLitude’s clients. 

    Jason grew up in Tyler, TX, and loves outdoor life that includes hunting, fishing, and target shooting. He enjoys hanging out at the family farm, where hay is produced and three Longhorn steers roam and graze the pasture land. He also enjoys spending time with his wife and daughter going to the movies, playing with their dog and having game night with family members. He loves scouting out new locations for wild hog hunting with his crossbow and is an avid NASCAR fan.

    Contact Jason

    Rease Patrick 

    Aquatic Specialist 

    rease-patrick-web-newRease Patrick is an aquatic specialist based in SOLitude’s Tyler, TX, office. He specializes in the sustainable management of aquatic weeds and algae. He also has a special interest in fisheries habitat management.

    Rease has a Bachelor of Science degree in Interdisciplinary Studies with focus areas in wildlife management, forestry and history from Mississippi State. He also has an Associate Degree in Applied Science in Forestry from Jones County Junior College.

    Prior to joining SOLitude, Rease supervised more than 40 employees at Sanderson Farms. He also gained valuable environmental experience with Hunt Southland Refining Company in Sandersville, MS.

    Rease grew up in Ellisville, MS, where he was raised to love the outdoors. His family moved to Palestine, TX, in 2017. In his spare time, Rease enjoys hunting, fishing and working outdoors. He and his wife can often be found hiking, kayaking, camping and traveling the country to see all of the National Parks. 

    Contact Rease

    Dane Holmes 

    Aquatic Specialist 

    dane-holmes-solitudeDane Holmes is an aquatic specialist based out of SOLitude’s Tyler, TX office. Dane is experienced with serving both public and private clients in the aquatics industry and focuses on implementing sustainable aquatic management plans that help them exceed their goals.

    Dane began his career serving in the Marine Corps. After serving our country, he started working in the aquatics industry helping with invasive species control, fisheries management, and private ranch management. He went on to join SOLitude in 2018.

    As a native Texan, Dane grew up in East Texas where he enjoys hunting, fishing, and spending time with his fiancée and two young children. 

    Contact Dane

    Karen Miller-Warwick

    Regional Administrator and Client Relations 

    karen-miller-warwick-headshot-webKaren Miller-Warwick is a Regional Administrator and Client Relations Professional based in SOLitude’s Tyler, TX, office. Karen supports the Southwestern team with nearly 30 years of administrative and customer service experience, and is one of the first points of contact for clients.

    Karen has a bachelor’s degree in Communications and Public Relations from Lambuth University in Jackson, TN. She also has a Master of Arts degree in Marketing Communications from Texas Tech University in Lubbock, TX, where her master’s Thesis was “Establishing a Customer for Life”. Before joining the SOLitude team, Karen gained valuable experience in a variety of fields ranging from the construction industry to the medical industry.

    Karen has lived in the Piney Woods of East Texas for 10 years, but she grew up a native Tennessean in Memphis, which she will always consider her home. Karen considers herself a true GRITS – Girl Raised in the South. As a busy mother of two teenage boys, Karen enjoys supporting her youngest son in sports, singing in her church choir, musical theater, working on crochet and needle crafts, and fellowship with friends and family. 

    Contact Karen

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    Sustainability Pledge

    sustainability pledge

    In support of our belief that lakes and ponds are a precious natural resource requiring protection, SOLitude is committed to providing sustainable and renewable solutions that maintain ecological balance in the workplace and beyond.


    Depth Of Expertise

    depth expertise

    When you partner with SOLitude, a dedicated field technician visits your lake or pond twice a month, leveraging extensive knowledge and training to carefully maintain ecological balance and preserve the appearance of your aquatic property.




    Utilizing the latest GPS aquatic mapping technology and our own proprietary lake and pond management software, the experts at SOLitude collect all the data necessary to provide comprehensive analysis and in-depth solutions.