Demetria Kimball-Mehlhorn joined RES as a Client Solutions Manager in 2025. She is an accomplished Environmental Scientist with expertise in environmental awareness, water resource management, public speaking, environmental policy, and project planning. With a strong natural resources and conservation foundation, Demetria has built a career as a skilled program and project management professional, delivering impactful solutions to environmental challenges. Her dedication to sustainable practices and effective communication underscores her ability to drive meaningful change in the field.

Demetria graduated from Central Michigan University with a Bachelor’s Degree focused in Natural Resources/Conservation.

Richard is a Kentucky native passionate about preserving and enhancing the region’s natural lands and aquatic resources. Since joining RES Kentucky (formerly Redwing Ecological Services) in 2008, he has been involved in numerous aquatic and terrestrial projects throughout Kentucky, Indiana, Tennessee, and Ohio. Richard serves as a Project Manager and RES’ lead Aquatic Biologist in Kentucky, drawing on his vast experience and knowledge of aquatic organisms (fishes, mussels, and macroinvertebrates). He holds state and federal scientific collection permits for fishes, mussels, and macroinvertebrates. As a Land Representative, Richard focuses on developing relationships with prospective landowners and community business leaders to help secure property rights and enable project realization.

Over the past 14 years, he has assisted with and managed numerous projects involving ecological assessments, Section 404/401 permitting, threatened/endangered species consultation, and mitigation for various private and public clients.

Richard holds a B.S. in Biology from Kentucky Wesleyan College and attended Eastern Kentucky University while pursuing an M.S. in Biology.

Kaitlin has been involved in stream and wetland-related work across the eastern and midwestern U.S., including Kentucky, Indiana, Tennessee, Ohio, North Carolina, and South Carolina, for over 10 years. Her expertise focuses on stream and wetland delineations, threatened/endangered species habitat assessments, mitigation assessments, project evaluation, and Section 404/401 permitting with the U.S. Army Corps of Engineers and state authorities. Currently, she serves as the Advisory Services Lead for Kentucky and helps direct clients needing consulting advice related to delineations, mitigation, and 404/401 permitting. She understands environmental and permitting challenges and has managed various projects from the initial field assessment phase to the final permitting approvals. She is eager to work with clients and agencies to satisfy their project needs and obtain project approval.   

Kaitlin holds a B.A. in Biology from Hanover College and an M.S. in Biology from Winthrop University. She is also a certified Professional Wetlands Scientist (PWS).   

Neil Guthals is a seasoned environmental leader with over 22 years of expertise in ecological consulting and project management. Recently promoted to State Manager for Kentucky at RES, Neil has built a reputation for delivering high-value solutions across the environmental sector. His strategic problem-solving and ability to lead complex projects from conception to completion have earned him a key leadership role within RES. 

Neil’s expertise spans a broad array of environmental services, including: 

• Wetland and stream mitigation, including leading the development of three wetland mitigation banks and numerous site-specific restoration projects 

• Comprehensive wetland delineation, quality assessment, and ecological evaluations 

• Regulatory compliance, permitting, and financial analysis for large-scale environmental projects 

• Technical and financial leadership, guiding teams through project scoping, financial forecasting, and project execution 

• Strategic planning for complex environmental assessments and mitigation projects 

Neil holds a B.A. in Biology from DePauw University, an M.S. in Environmental Science from Indiana University, and an MBA from the University of Louisville. Additionally, he is a certified Professional Wetland Scientist (PWS).  

Henry serves as the Land Representative for RES in Kentucky, where he oversees all phases of land acquisition for wetland and stream mitigation projects. With a diverse background spanning rural real estate, forestry, and restoration ecology, he brings a land-centered approach and a deep understanding of both ecological and property dynamics to every project.

Henry holds a B.S. in Restoration Ecology from Colorado State University. His comprehensive knowledge of land management and restoration makes him a key contributor to RES’ mission of delivering high-impact environmental solutions.

Outside of work, Henry enjoys hunting, fishing, photography, and hiking with his wife, Natalie, and their Australian Shepherd, Oakley.