Environmental Hydrology

Water is critical to the health and balance of our world. We combine rigorous science and practical engineering solutions to restore this balance and solve complex water resource challenges.

Our team of scientists and engineers is unified by our dedicated understanding of – and appreciation for – natural systems, as well as our common goal of protecting, enhancing, and restoring the environment from the headwaters to the coast. From river and wetland restoration to climate change adaptation, flood management, and coastal erosion, our innovative and cost-effective solutions are founded on rigorous science and a deep understanding of natural processes, resulting in enduring results with multiple benefits.

Our comprehensive Coastal and Estuarine Restoration and River and Floodplain Restoration services include all phases of project development, from concept planning and analysis through final design and construction support. Many of our integrated planning, analysis, and design services for Flood Management, Watershed Management and Coastal Zone Engineering and Management projects have been lauded as exemplary and pioneering. We work with our clients to address Climate Change Adaptation on many fronts, including developing creative and ecologically beneficial approaches to adapt to sea level rise.

Pioneers of environmental hydrology, ESA PWA, formerly Philip Williams and Associates, Ltd., was founded by Philip Williams, who advanced a multidisciplinary approach using engineering and science to manage and restore ecosystems. We now know this approach as environmental hydrology.

See How We Do It

Environmental Technical Studies
Restoration and Mitigation
Environmental and Community Planning
Sustainability and Climate Change

Leadership

esa.hostpyramid.net Staff
Ann Borgonovo, PE
Environmental Hydrology Leader
esa.hostpyramid.net Staff
Jeff Haltiner, PhD, PE
Environmental Hydrology Principal Director
esa.hostpyramid.net Staff
Philip Williams, PhD, PE, Eur. Ing.
Distinguished Technical Advisor