GreenWater Lab

Phone: (877) 869-2542

The Cyanobacteria Experts

GWL/CL is nationally and internationally recognized as leaders in the field of toxigenic cyanobacteria analyses. Our staff has over 50 years cumulative experience in the fields of aquatic biology, limnology, phycology, toxicology, analytical chemistry and cyanotoxin analyses.

Mark Aubel

Mark Aubel, Ph.D.

President / Analytical Chemist

Mark is the lead analytical chemist and President of GreenWater Laboratories/CyanoLab. Mark directs all laboratory tasks and manages all major projects. As an analytical chemist, he performs liquid chromatography/mass spectrometry analysis on samples, supervises new protocol development and monitors quality assurance and control.

Mark has co-authored multiple papers on cyanobacerial toxin analysis and has almost three decades in analytical chemistry experience. His experience with chemistry includes acedemic, private and corporate laboratories.

Andrew Chapman

Andrew Chapman, M.S.

Phycologist, Limnologist

Andy has been the senior phycologist at GreenWater Laboratories since its establishment in 2001. Andy is a nationally recognized phycologist with over 20 years of experience with identifying algae. Andy specializes in the identification and enumeration of algae/cyanobacteria, specifically potentially toxin producing genera/species.

Andy has organized, assisted and administered workshops on the identification and classification of freshwater algae to such organizations as the Florida Lake Management Society, the North American Lake Management Society, the Florida Fish and Wildlife Conservation Commission and Florida Drinking Water Treatment Plants.

Amanda Foss

Amanda Foss, M.S.


Amanda is a chemist with a focus on analytical extraction and analysis techniques. She received a B.S. in Environmental Chemistry and M.S. degrees in Forensic Toxicology and Fisheries/Aquatic Sciences from the University of Florida. Amanda has over a decade of experience with cyanotoxin analysis.

Amanda performs algal toxin analyses and directs research involving the development and validation of methods for the extraction and quantification of algal toxins from biological matrices (e.g. tissues, serum). Amanda also assists with algal identification and extracts/purifies toxin standards.

Kamil Cieslik

Kamil Cieslik, B.S.


Kamil is a chemist at GreenWater Labs, with a B.S. degree in Chemistry from the University of Central Florida. At GreenWater Laboratories Kamil currently conducts algal toxin analysis using enzyme-linked immunosorbent assay (ELISA) and extracts/prepares samples for analysis with mass spectrometry. With a strong background in Chemistry, Kamil is an integral part of the CyanoLab division of GreenWater Laboratories with a focus on providing clients with high quiality purified cyanobacteria toxins for calibration and research purposes. Kamil is also learning about phycology to assist in microscopy work.

Sarah Fuller

Sarah Fuller, B.S.

Biologist / Biochemist

Sarah has a B.S. degree in Biology with a focus in Biochemistry from Georgia Gwinnett College. Sarah is conducting toxin extractions on tissues for analysis with ELISA and LC-MS/MS. She is also conducting toxigenic cyanobacteria screens using microscopy to help clients determine if they have potential toxin producers in their water samples. Sarah has a strong background in client relations and will be helping address specific client questions and goals

Shirley Rodman

Shirley Rodman, B.S.

Administrative Assistant / Bookkeeper

Shirley is the newest addition to the GreenWater Lab team. With a B.S. Degree in Counseling Psychology and an extensive background in bookkeeping, Shirley provides support to the team in a variety ways. Maintaining accurate accounting records and providing excellent customer service are some of Shirley’s main duties.

Diana Beckenhaupt

Diana Beckenhaupt


Diana is an intern at GreenWater Laboratories learning how to culture and harvest Cylindrospermopsis for analytical standards purified using preparation scale HPLC. Her research interests include cyanotoxins, multistep organic synthesis and purification methods, including thin layer and column chromatography. She is curerntly a Junior at Binghamton University with a major in Biochemistry.

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