Dustin Bambic, P.H.
Principal Hydrologist and Director
Dustin is an expert at stormwater planning, pollutant fate and transport and Clean Water Act compliance. His understanding of both the science and policy of Clean Water Act issues has enabled him to lead some of the most challenging water quality projects in the United States. Dustin has led numerous innovative stormwater implementation plans that leveraged state-of-the-art tools such as continuous simulation and genetic optimization to identify BMPs with maximum cost-benefit. He also has nationally recognized expertise related to the bacteria contamination that causes beach closures and freshwater impairments across the United States – he has led numerous cutting-edge special studies (including microbial source tracking and quantitative microbial risk assessment) to support implementation plans to reduce bacteria levels in stormwater and/or develop site-specific water quality criteria.
Master of Science, Civil and Environmental Engineering, 2003, University of California-Davis
Master of Science, Hydrologic Science, 2003, University of California-Davis
Bachelor of Science, Physics, 2000, Western Kentucky University
Bachelor of Arts, Mathematics, 2000, Western Kentucky University
Stephen Carter, P.E.
Principal Engineer and Director
Stephen has supported numerous federal, state, and municipal clients in the areas of watershed modeling, emerging stormwater engineering practices, infrastructure planning, and Clean Water Act regulatory support. He has developed innovative approaches to watershed management, including leveraging advanced modeling systems to develop TMDLs and implementation plans to identify cost-effective BMPs and reduce stormwater and CSO impacts. Stephen has managed numerous large on-call engineering contracts, encompassing a wide spectrum of projects from water quality improvement planning to pollutant monitoring studies to city-wide infrastructure management. Stephen oversees Paradigm’s stormwater capture engineering efforts, including development of innovative concepts. Steve is a registered Professional Engineer with the state of California.
Master of Science, Environmental Engineering, 1999, University of North Carolina - Chapel Hill
Bachelor of Science, Civil Engineering, 1997, University of North Carolina- Charlotte
Principal Water Resources Analyst and Director
John is an internationally recognized expert in continuous simulation modeling and data analysis. His applications include hydrological modeling, climate change assessment, stormwater and watershed management, water quality modeling, and pollutant source characterization. John has led some of the largest watershed modeling projects conducted in the United States. John was a principal developer of the groundbreaking, public-domain modeling software – System for Urban Stormwater Treatment and Analysis Integration (SUSTAIN) for USEPA. John’s experience also includes computer programming of applications for storing, managing, and analyzing complex datasets to inform policy decisions. He also has a reputation as an effective communicator and has conducted numerous nationally attended workshops and training courses.
Master of Science, Civil and Environmental Engineering, 1999, University of Virginia
Bachelor of Science, Civil and Environmental Engineering, 1997, University of Virginia
Principal Scientist and Director
John is an experienced environmental scientist and program manager who leads complex water resources projects. He has led signature projects involving water quality assessment, watershed planning and development of implementation-ready TMDLs. John has served as project manager for numerous large on-call federal contracts including major vehicles for USEPA. John served as contract manager for some of the most complex and innovative TMDLs in the U.S. including TMDLs for temperature, sediment, nutrients and bacteria. He has provided support for water programs throughout the United States for federal, state, and local governments and brings a unique understanding of Clean Water Act programs across all levels of government. John leads key internal operational aspects for Paradigm to promote efficiency and attainment of corporate goals.
Master of Science, Marine, Estuarine, and Environmental Sciences, 1992, University of Maryland
Bachelor of Science, Biology, 1986, Towson State University
Senior Water Resources Analyst
Ryan has extensive experience applying an advanced knowledge of computer systems and programming to solve complex environmental and water resources challenges. His applications combine his inter-disciplinary background in urban & ecological planning, public policy, water resources engineering and computer science. Ryan has been involved in the development of numerous TMDLs, stormwater BMP implementation strategies, and green infrastructure planning efforts. He has diverse exposure to watershed and stormwater modeling systems gained through project-specific application, active software development, and leading hands-on training workshops. Ryan specializes in leveraging the power of high-end computing, large datasets and open source frameworks to develop integrated decision support systems. He champions the application of scientifically oriented, open source platforms such as Python, R and QGIS. Ryan supports project workflow within Paradigm to ensure efficient utilization of resources and leveraging of key expertise across multiple projects.
Master of Environmental & Water Resources Engineering, 2008-2010, Tufts University, Medford, MA
Bachelor of Science, Environmental Policy & Planning, 2005, Virginia Tech, Blacksburg, VA
Leila Talebi, Ph.D., P.E.
Senior Water Resources Engineer
Leila is a water resources engineer with extensive experience in the quantification of green infrastructure benefits at both site- and watershed-scales. She leads stormwater engineering projects that require interdisciplinary expertise across engineering design, modeling and pollutant fate and transport. Leila specializes in hydrologic and hydraulic analysis, water quality-based design of green infrastructure, and development of BMP monitoring programs. She has held key roles in several landmark projects in the U.S. which included planning, design, construction and evaluating the effectiveness of retrofitted green infrastructure BMPs across small- and large-scales. Leila was mentored by Dr. Robert Pitt, Emeritus professor at the University of Alabama and one of the ‘founding fathers’ in the field of stormwater quality engineering. Her engineering rigor and attention-to-detail ensure that our stormwater planning and modeling projects provide real-world outputs that are useful for capital improvement programs. Leila is a registered Professional Engineer with the state of California.
Ph.D., Civil and Environmental Engineering, 2014, University of Alabama
Master of Science, Civil and Environmental Engineering, 2012, University of Alabama
Master of Science, Civil and Environmental Engineering, 2007, Khajeh Nasir University of Technology
Bachelor of Science, Civil and Environmental Engineering, 2004, Amirkabir University of Technology
Khalid Alvi, P.E.
Senior Water Resources Engineer
Alvi is a water resources engineer with extensive experience in the development of linked watershed and stormwater BMP modeling systems. He leads teams of computer programmers and watershed modelers to produce applications and software for federal, state, and municipal agencies. Alvi has authored foundational software for stormwater and watershed modeling including the System for Urban Stormwater Treatment and Integration (SUSTAIN), Loading Simulation Program – C++ (LSPC), Stormwater Management Optimization Tool (Opti-Tool) and the BMP Accounting and Tracking Tool (BATT). He is also one of the leading experts in the application of EPA’s Spreadsheet Tool for Estimating Pollutant Loads (STEPL), and has provided national technical support to EPA 319 grantees and led hands-on-training courses across the country. Alvi’s leadership and innovative problem-solving are an asset across all phases of our modeling workflow, including problem formulation and simplification of computational complexities. He is a registered Professional Engineer with the state of Virginia.
Master of Science, Civil and Environmental Engineering, 1999, Asian Institute of Technology, Thailand
Bachelor of Science, Civil Engineering, 1993, University of Engineering and Technology Lahore, Pakistan
Ryan Edgley, EIT, HIT
Water Resources Engineer
Ryan is an engineer and scientist with experience in stormwater modeling and water quality compliance strategies. Ryan leverages broad knowledge of hydrologic and hydraulic models, geographic information systems, and numeric computing software (e.g., Python, R) in supporting strategic stormwater compliance strategies. His current areas of emphasis include hydrologic and hydraulic modeling, two-dimensional watershed modeling, geospatial analysis, data analysis, and watershed planning. Within Paradigm’s modeling workflow, Ryan supports BMP identification, vetting for feasibility, unit-BMP simulations, assessment of cost-effectiveness, and prioritization screenings. His analyses are integrated into a broader stormwater compliance framework supporting municipalities with demonstrating progress towards meeting water quality and flood reduction goals. Ryan brings a thoughtful, organized approach to Paradigm’s workflow by promoting rapid-turnaround, quality assurance, and cross-discipline collaboration.
Master of Science, Hydrology, 2016, Colorado School of Mines
Bachelor of Science, Geology, 2014, California State Polytechnic University, Pomona
Bachelor of Science, Science, Technology & Society, 2014, California State Polytechnic University, Pomona
Chris Carandang, EIT
Water Resources Engineer
Chris is an engineer with experience in stormwater planning and project design. He has led concepts of numerous stormwater capture projects, including low impact development, green streets and regional facilities. Several of these concepts have been successfully funded by competitive grants. Chris leverages cutting-edge tools including continuous simulation models, geoprocessing and 3D design software. He is adept at identifying optimal locations for stormwater capture projects by using geoprocessing to identify available rights-of-way and public parcels with high potential to capture runoff. His research experience also includes analyzing satellite remote-sensing products to examine urban vegetation patterns in response to drought, local conservation measures, and urban water consumption. Chris brings a steady and consistent approach to engineering projects that promotes well-written, high-quality deliverables.
Master of Science, Civil and Environmental Engineering, 2015, Colorado School of Mines
Bachelor of Science, Civil Engineering, 2013, University of California, Los Angeles
David Rosa PH.D., CFM
Water Resources Scientist
David is a water resources scientist with expertise in watershed modeling and the installation, monitoring, and analyses of various urban and agricultural best management practices. David applies his skills in research, problem-solving, and stakeholder communication to support Paradigm’s watershed management projects. His experience includes calibrating and validating continuous simulation models for watersheds, implementing LID and traditional stormwater management techniques, and applying hydrologic and hydraulic models to quantify the water quality benefits of reconnected floodplains. David has led modeling workshops for state officials and has expertise with a range of pollutants including phosphorus, nitrogen, chloride, suspended solids, and pathogens. David is a certified floodplain manager and has worked closely with state and municipal partners to implement policies that promote flood resilience and the natural and beneficial functions of floodplains.
Ph.D. Natural Resources, Land, Water, and Air, University of Connecticut, 2017
Master of Science, Natural Resources, Land, Water, and Air, University of Connecticut, 2013
Bachelor of Science, Natural Resources, University of Vermont, 2006
water resources engineer
Eric is a water resources engineer with a background in numeric models and data science. He has experience in hydraulic and hydrologic modeling in a wide variety of applications, ranging from small scale green infrastructure feasibility studies to larger regional studies. Eric employs advanced data science techniques which improve the development of Paradigm’s hydrologic and water quality models. He contributes to climate change analyses using spatiotemporal climate data, conducted high-resolution watershed characterizations, and created advanced data processing algorithms. During this graduate research, Eric assessed the interplay between future climate scenarios and the magnitude of evapotranspiration on the water balance.
B.S. Civil Engineering - Northeastern University, Boston, MA - 2018
M.S. Civil Engineering - Northeastern University, Boston, MA - 2019 (Expected)
Jack Mikesell, EIT
Water Resources Engineer
Jack is a water resources engineer who brings an emerging background in watershed hydrology. Jack has gained experience supporting stormwater and watershed management initiatives in California through the compilation, analysis, and synthesis of climate, geospatial, and environmental monitoring datasets. He has supported regional planning efforts ranging from stormwater master planning and watershed modeling to capital planning, conceptual design, and the application of GIS. Jack’s graduate research includes analyzing field-based LiDAR data and remote sensing products to develop computational tools for the assessment of post-wildfire hydrogeomorphic risks. He also leverages hydrologic models to inform watershed sustainability and landscape-scale planning efforts.
Bachelor of Science, Environmental Engineering, 2018, San Diego State University, Minor in Sustainability
Master of Science, Civil Engineering, 2020 (expected), San Diego State University
Robert Berger, GISP
Senior Applications Developer
Master of Science, Geography, 2007, Ball State University
Bachelor of Science, Computer Information Science, 2005, Minnesota State University
Bachelor of Science, Geography, 2005, Minnesota State University
Bachelor of Arts, Environmental Studies, 2012, University of North Carolina - Wilmington
Full Stack Software Development Certification, Nashville Software School, 2018 - Nashville, Tn
Full Stack Software Development Certification, Nashville Software School, 2018
Cory brings a background in photojournalism and photo editing to support Paradigm’s graphic design needs. She leads creative elements of Paradigm’s corporate branding including graphical elements of deliverables and websites.
Bachelor of Arts, Photojournalism, 2000, Western Kentucky University
Bachelor of Arts, Anthropology, 2000, Western Kentucky University
Melissa brings a background in financial management counseling and international trade development to support Paradigm's internal operations. She manages accounts receivable, accounts payable and internal accounting.
Master of Arts, 2000, International Affairs, George Washington University
Bachelor of Arts, 1997, International Studies and Philosophy, Muhlenberg College