Team

Meiser & Earl, Inc

Our Team

The cohesive group of experienced personnel at Meiser & Earl realizes that field work is the basis of the project and is sensitive to proper execution, skilled observation, and accurate record keeping. 

Our small size allows for projects to be performed by, or directly supervised by, senior personnel. The technical staff has built their comprehensive understanding of hydrogeology upon a firm understanding of the basic principles of physics, chemistry, and mathematics.

Our administration serves as a trusted partner providing support on administrative and business management matters/activities. We take the time at the onset of projects to conceptualize the work, set realistic project goals, and develop the necessary rationale for decision-making.

Richard C. Henry, P.G.

President, Principal Hydrogeologist

Rick began working in the hydrogeological industry in 1999 after graduating from Penn State University. Aside from a three-year period from 2009 to 2012, Rick has worked on projects in Pennsylvania and the surrounding states since he began working as a hydrogeological professional.

Over his career, Rick has experienced being the field geologist collecting data, to being a project hydrogeologist and senior team member authoring many hydrogeological reports for regulatory review and consideration. These projects ranged in scale from whole watershed studies with hydrogeologic modelling to more localized assessments of point source pollution.

Regardless of whether the project is seeking groundwater, interfacing with groundwater, or possibly negatively impacting the groundwater; Rick has worked with clients and regulatory agencies (PADEP and the SRBC) to produce technically sounds answers to the questions that arise at the beginning and throughout any project.

Todd A. Lowrey, P.G.

Senior Hydrogeologist

James R. Eby, P.G.

Secretary/Treasurer, Chief Hydrogeologist

Jim has over 45 years of hydrogeologic consulting experience. After graduating from The Pennsylvania State University in 1975 with a M.S. in Geology, specializing in hydrogeology, he began working as a hydrogeologic consultant in 1976.

He began working with Meiser & Earl in 1984, and became a licensed professional geologist in 1994. He has been the secretary/treasurer and principal hydrogeologist at Meiser & Earl since 2001 and served on the board of directors from 1998 to 2017.

He has completed numerous projects throughout Pennsylvania and surrounding states. He is responsible for preparing proposals, meeting with clients and regulatory personnel, managing projects, supervising geologists, and completing hydrogeologic reports and permit applications for submittal to the Susquehanna River Basin Commission and/or Pennsylvania Department of Environmental Protection. 

Jim’s major areas of project experience include: water-supply development, waste disposal site development, coal and non-coal mine site development, soil and groundwater contamination, and hydrogeologic evaluations for land development. In his years of experience he has been involved in all phases of these projects. 

Jay F. Lynch, P.G.

Chief Hydrogeologist

Jay Lynch’s background includes over 35 years of hydrogeologic consulting experience. He has worked in Pennsylvania and the Mid-Atlantic region on project types that include environmental assessment, hazardous waste investigations, regional hydrogeologic studies, karst evaluation and sinkhole remediation, and groundwater source development.

He has completed numerous municipal, commercial, and industrial water supply development projects in Pennsylvania, specifically in Centre, Lancaster, Berks, Franklin, Huntingdon, Adams, and York counties. These projects have included well siting, fracture trace analysis, well testing, and well permitting by Pennsylvania Department of Environmental Protection (PADEP) and the Susquehanna River Basin Commission (SRBC). These projects include evaluating impacts to wetlands, streams, springs, and domestic and/or public water supply wells. 

Matthew L. Bell, P.G.

Project Hydrogeologist

Matt’s background includes experience in a variety of geologic settings, with a wide range of study goals and challenges, from radiological contamination sites in New Jersey to abandoned coal mines in West Virginia. At Meiser & Earl, Matt brings experience in aqueous geochemistry, surface water-groundwater interactions, geographic information systems (GIS), and geomorphology.

Matt currently uses his skills to support clients in the water resources, mining, and municipal/residual waste sectors. Matt took part in academic research during both his undergraduate and graduate educations. His graduate research focused on inorganic carbon fluxes from abandoned Appalachian coal mines. He also provided technical assistance to a project identifying and predicting landslides throughout the state of West Virginia.

Collin R. Littlefield

Project Geoscientist

Collin earned a B.S. in Earth and Environmental Sciences from Susquehanna University, graduating with research and departmental honors, and a M.S. in Geoenvironmental Studies from Shippensburg University.

Collin joined the Meiser & Earl team in 2017, where he has worked on Act 2 ESAs, groundwater supply rehabilitation and testing, groundwater supply development and permitting, geologic mapping, water quality monitoring and review for public water supplies, surface and deep mines, and landfills. His experience in groundwater quality monitoring includes sampling for new groundwater sources, MPA, and PFOS/PFAS analysis.

He is certified in MSHA’s Part 48 surface at non-metal mines and has other OSHA and MSHA certifications. He also has experience in GIS software, wetland delineation, land trust conservation projects, and environmental education.

Prior to joining Meiser & Earl, Collin gained experience at PA Topographic & Geologic Survey’s Core Library in sample preparation, database management, and maintenance of sampling equipment. He also assisted in the state’s geologic mapping program. Collin’s undergraduate and graduate research was in facies analysis and cyclostratigraphy of carbonates in PA.

Lena M. Fox, GIT

Project Geoscientist

Lena joined Meiser & Earl, Inc. following the completion of her M.S. Degree in 2022, transitioning her career goals from K-12 Education back to geology and hydrogeological studies. Lena holds a B.S. Degree in Geology from West Virginia University, and a M.S. Degree in Geology from Portland State University. Lena’s background includes a wide range of experiences from work in a variety of geologic settings, experience with secondary school education, and social media marketing.

At Meiser & Earl, Lena brings experience in geochemistry, geographic information systems (GIS), technology, and geomorphology. Lena currently uses her skills to support clients in the water resources, mining, and municipal/residual waste sectors. Lena took part in academic research during both her undergraduate and graduate educations. As an undergraduate assistant to a Ph.D. student, she helped with remapping peat bogs in West Virginia. Her graduate research focused on geochemical and stratigraphic evaluation of Columbia River Flood Basalts in Eastern Oregon.

Rebekah Nicholas, GIT

Staff Geoscientist

Rebekah joined Meiser & Earl while finishing her M.S. Degree in 2023. Rebekah holds a B.S. Degree in Earth and Environmental Sciences from Lehigh University, and a M.S. Degree in Geology from West Virginia University.

At Meiser & Earl, Rebekah brings experience in karst hydrogeology, geochemistry, and personal communication skills. Rebekah worked with Puerto Rico Testsite for Exploring Contamination Threats (PROTECT) as part of her M.S. degree. Rebekah’s research focused on karst hydrogeology and geochemistry in Puerto Rico caves to explore contamination transport from Superfund sites. Rebekah also worked with Butler Cave Conservation Society in Virginia to identify trace contamination and its relationship to organic matter in the Butler Cave – Sinking Creek system.

Robert S. Rupert

Staff Geoscientist

Kelsey Hull

Staff Geoscientist

Kelsey joined Meiser & Earl following the completion of her M.S. degree in 2025. She holds both a M.S. in Geoenvironmental Science and Sustainability and a B.S. in Geoenvironmental Science with a GIS Certificate from Shippensburg University. Kelsey engaged in academic research throughout her undergraduate and graduate studies.

Her graduate research focused on floodplain and surface hydrology modeling of a stream restoration project using GIS and HEC-RAS software. She brings experience in hydrogeologic fieldwork, GIS integration, and spatial data interpretation. Prior to joining the firm full-time, Kelsey completed multiple summer internships with Meiser & Earl.

Lizabeth A. Guenot

Office/Accounts Administrator

Liz joined the Meiser & Earl team in November 1987 as an administrative assistant. She then advanced to her primary role as office/accounts administrator in July 1991. 

She is responsible for accounts payable, accounts receivable, billing, financial reports, payroll, benefits, and daily business operations. 

She has also served on the board of directors since 2001.