Mr. Richins is a senior associate at Mueser Rutledge Consulting Engineers with a MS degree in geotechnical engineering and 20 years of experience. He specializes in dewatering and groundwater control analyses. His experience includes groundwater modeling using simplified analytic methods and complex three-dimensional transient numerical models, design and analysis of pumping tests, and seepage and dewatering estimates for excavations, including open-cut and partial-cut-off excavations. Mr. Richins has been involved in projects using various dewatering methods, including deep and shallow wells, wellpoint systems, ejectors, slurry trenches and cutoff walls, and particulate and chemical grouting.