Jonathan Clough has been an environmental consultant since 1994 with special emphasis on developing object-oriented environmental computer models. Since 1995, he has been the primary programmer for the AQUATOX bioaccumulation, toxicant fate, and effects model. Since 1998, Mr. Clough has been programming and applying bioaccumulation models for EPA Region 1 in support of the Modeling Study of PCB Contamination in the Housatonic River including formal reporting of model calibration and validation and response to peer-reviewer comments. He has been developing and applying the SLAMM (Sea Level Affecting Marshes Model) since 1998. Mr. Clough founded Warren Pinnacle Consulting, Inc. in 2001.

Scientific Programmer: Developed AQUATOX for the Exposure Assessment Branch of the EPA Standards and Applied Science Division. Dramatically expanded model capabilities including the ability to model stratifying systems, and the capability to perform Latin hypercube uncertainty analyses. Started working on bioaccumulation modeling of Housatonic River EPA Superfund site .

Research Assistant: Abt Associates. Designed and implemented user-friendly GUIs for existing models, primarily utilizing object Pascal. Started working with AQUATOX model. Converted model from DOS based model into object-oriented code with Windows GUI. Wrote significant portions of a Pascal statistics package to be used in sensitivity and uncertainty analyses and incorporated package into AQUATOX.