Zach Stein, P.E.

Zach is a water resources project manager with experience in surface water hydrology and hydraulics, reservoir modeling, and water right permitting support. Zach is well-versed in using analysis and modeling tools such as RiverWare, HEC-HMS, HEC-RAS, the Texas State Water Availability Model, ArcGIS, and original spreadsheet models. He is also experienced in water supply planning and developing planning-level cost estimations.

Growing up on a south Texas farm, Zach learned the value of water from his father and the impact it has on people’s lives. From that experience, he developed a passion for helping people find solutions to their water supply needs. This led him to Texas A&M University, where he focused his undergraduate and graduate studies on water resources engineering. After graduating, Zach joined HDR, where he enjoys using modeling tools to help solve complex permitting and water supply issues.

One of Zach’s proudest achievements was assisting Dallas Water Utilities in obtaining an amendment to their Lake Ray Hubbard water right permit. He developed unique methods to quantify additional available streamflow resulting from heavy urbanization in the reservoir watershed and created a model to accurately account for these streamflows using a virtual reservoir technique.