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Syed Rehan

Rafat Abbasi, Rula Deeb, Syed Rehan, and Elham Shirazi to Present at California Land Recycling Conference

2026-09-28T09:05:04-06:00September 25th, 2026|Tags: , , , |

Rafat Abbasi, Rula Deeb, Syed Rehan, and Elham Shirazi will present at the California Land Recycling Conference (CALRC) on September 29 through October 1, 2026, in Foster City, California.

Congratulations to Newly Promoted Senior Principals in 2019

2026-03-15T10:21:22-06:00April 24th, 2019|Tags: , , , , , , , , |

Geosyntec is pleased to announce the promotion of Arthur Forma, Helen Dawson, Julie Konzuk, Paul Botek, Rebecca Daprato, Stefanie Fountain, Syed Rehan, Tom Ramsey, and Warren Brady to the position of Senior Principal within the Geosyntec family of companies.

Remedial Design

2026-06-30T09:17:15-06:00March 27th, 2014|Tags: , , , , , , , , , , , , , , , , , , , , , , , |

Geosyntec is a preferred partner for innovative, cost-effective, and successful remediation solutions because we approach each project with technical expertise and creativity. For every client, we develop a clear understanding of how to achieve best-value outcomes using the most appropriate technologies and management strategies for individual projects. When the nature of the problem, like an emerging contaminant, requires a new type of remedy, our professionals set the standard for developing innovative science into novel and effective solutions for environmental remediation. From advanced vapor intrusion evaluation strategies to sophisticated bioaugmentation techniques and beyond, Geosyntec delivers practical environmental management solutions that meet project-specific needs and achieve our clients' objectives. Along with our expertise in treatability and pilot tests, Geosyntec practitioners are adept at conducting feasibility studies that develop, screen, and provide detailed evaluations of alternative remedial solutions for impacted sites. Our studies help clients determine the optimum performance they can expect from a remediation system and the expected cost of implementing a remedy. We also provide detailed remediation system design and design/build services for a wide range of innovative and traditional remediation strategies, including those that employ groundwater pump and treat systems; bioremediation and bioaugmentation solutions; chemical oxidation; the injection of nanoscale zero-valent iron; soil vapor extraction; indoor air venting and treatment; and much more. Geosyntec applies the principles of future optimization at the forefront of the design process, positioning the client for long-term savings opportunities, with strategies like modular unit operations of an ex situ treatment train to reduce chemical and energy costs as influent concentrations decrease, or incorporating flexibility into injection systems such as allowing for alternating passive and active flow fields or the ability to add additional components to target residual source zones. Geosyntec is the leading provider of remedial design services, particularly for complex sites where the challenges – whether from unconventional contaminants, difficult geology and site setting, multi-party groups of responsible parties, or all of the above – make the exit strategy difficult to envision. Our collaborative, global network provides our clients with access to the most talented group of environmentally-focused professionals in the industry. We also approach every project as a time-critical action, recognizing that when our clients require remediation services, they should expect to see the positive results of those actions in a timely manner.

Syed Rehan, PE, BCEE

2026-06-04T09:50:26-06:00October 13th, 2013|Tags: , , , |

Syed Rehan is a Senior Principal Environmental Engineer based in California with more than 22 years of experience focused on developing engineering solutions and regulatory compliance strategies for environmentally impaired sites impacted by the presence of chlorinated solvents, heavy metals, and hydrocarbons and petroleum products in soil, groundwater, soil vapors, and indoor air.

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