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This webinar will provide an overview on the process of selecting and designing a proprietary stormwater treatment device for permitting in Rhode Island, with a focus on the Jellyfish Filter.  Although this training is specific to RI, the information that will be presented is extremely valuable and relevant for all designers, reviewers, and municipalities interested in learning about implementing proprietary stormwater treatment devices to meet water quality goals and/or TMDL requirements on challenging sites. 

Brian Byrnes of the Providence Parks Department will discuss the initial conceptual designs for implementing a Jellyfish Filter in Roger Williams Park for water quality improvements and as a training site for hands-on maintenance education.   A representative from Contech Engineered Solutions will go over what the Jellyfish Filter is, how it works, how to determine what size device is needed; along with other design limitations, best practices, maintenance considerations and more.   Additionally, Hernan Peralta, P.E. from Woodard & Curran and Brian Giroux, P.E. of DiPrete Engineering will each provide an account of individual case studies where they designed a RIDEM project which utilized Jellyfish Filters.   RIDEM staff will also provide a description of their process for certifying new proprietary stormwater treatment devices.


Brian Byrnes, Deputy Superintendent, Providence Parks Department

Christopher Dill, Rhode Island Department of Environmental Management

Derek Berg, Contech Engineered Solutions

Hernan Peralta, Woodard and Curran

Brian Giroux, Diprete Engineering


Video Recording of this webinar


Brian Byrnes
Deputy Superintendent – Providence Parks Department

  • Degree in Urban Planning & Resource Development – URI

  •  Over 30 Years of Construction Experience

  • Certified Playground Safety Inspector

  •  National Storm Water Center - Certified Stormwater Inspector

  •  Started with Providence Parks in 2015

  •  Project Manager for Projects in (120) Providence Parks

  •  Supervisor of (130) Parks Department Personnel


Derek Berg

Director – Stormwater Regulatory Management – East, Contech® Engineered Solutions LLC

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Derek has more than 20 years of experience in technical roles specific to stormwater management including BMP monitoring, research and development, and regulatory affairs.  He is past president of the Stormwater Equipment Manufacturers Association (SWEMA) and is active on numerous stormwater stakeholder committees and initiatives throughout the country.  Mr. Berg holds a Bachelor’s degree in Environmental Science and Policy as well as an MBA from the University of Southern Maine. 

Hernan Peralta, PE

Technical Manger - Woodard and Curran

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Hernan has 15 years of civil/site engineering experience specializing in directing multidisciplinary project teams of engineers, scientists, and regulatory specialists for large-scale public works, roadway, storm drain and utility infrastructure projects.  His project experience includes seeing projects from the conceptual planning phase through permitting, design, and construction; including Low Impact Design (LID), Green Stormwater Infrastructure (GSI) design, storm drainage design, stormwater management, and utility infrastructure assessment and design. Hernan graduated from the University of Rhode Island with a Bachelor’s Degree in Civil Engineering.

Christopher Dill

Environmental Engineer I - Rhode Island Department of Environmental Management

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Chris is a UMass Darmouth graduate of Civil & Environmental Engineering with experience reviewing stormwater designs, researching ion exchange resins, and testing construction materials.

Director of Engineering and Design - Diprete Engineering

Brian Giroux, PE


As Director of Engineering and Design, Brian is responsible for engineering design, regulatory permitting, and construction administration. His portfolio includes retail, institutional, and industrial projects. Brian is also the firm’s AutoCAD Manager, keeping the engineering teams on the forefront of technology. His team looks to him to set standards and create templates and improve efficiencies, QA/QC culture, and training. 

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