Mark Erwin is a Senior Project Manager in Jones Edmunds’ Water Resources discipline. He is an expert in hydrologic and hydraulic (H&H) modeling, watershed management planning, best management practices, and water resources design. His software experience includes ICPRv3, ICPRv4, HEC-RAS, HC-SWMM, XPSWMM, SWMM4, and SWMM5.