Luis Bautista Castillo, East Los Angeles College, Physics, Monterey Park, CA, United States, Emilio Salazar, Whittier, CA, United States; Rio Hondo College, Civil Engineering, Whittier, CA, United States, Philip J Carpenter, Northern Illinois University, Geology and Environmental Geosciences, DeKalb, IL, United States, Rosa Maria Leal-Bautista, Centro de Investigación Científica de Yucatán A.C., Unidad de Ciencias del Agua, Cancún, QR, Mexico and Melissa E. Lenczewski, Northern Illinois University, Geology and Environmental Geosciences, DeKalb, United States