*I am currently a student at Bloomsburg University, this is a presentation for class, I am not an Intern at Upper Salinas-Las Tablas Resource Conservation District.* The CHAMACOS Study is led by Dr. Brenda Eskenazi, from the University of Berkeley. The research team followed about 600 participants in the Salinas Valley for 12 years, collecting information on the development of their children and focused on the relationship to high exposure of Organophosphates. Linked below for additional information is the original research paper done by Dr. Eskenazi. https://www.researchgate.net/publication/262791810_CHAMACOS_A_longitudinal_birth_cohort_study_Lessons_from_the_fields