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ESA's team of engineers, scientists, and technical experts provides a full range of hydrologic analysis, monitoring, and regulatory expertise.

Our hydrologists use state-of-the-art methods to understand the magnitude, frequency, distribution, and other characteristics of surface water in support of projects ranging from flood management planning to restoration design and climate change adaptation. Our in-house technical experts - stormwater, groundwater, water quality, water supply, and environmental impact specialists - are adept at evaluating projects for environmental documentation, regulatory compliance, and permitting.

We combine hydrologic, geomorphic, and hydraulic analyses with field data collection to gain insights into the physical processes that shape the environment. These insights, combined with a detailed understanding of regulatory requirements, enable us to develop resilient and enduring client solutions.

Specialized Services

  • Coastal flood forecasting
  • Environmental impact reports
  • Environmental impact statements
  • Flood frequency analysis
  • Hydrograph modification
  • Hydrographic survey
  • Hydrologic and hydraulic modeling
  • In stream flow studies
  • Large woody debris and in stream structures
  • Rainfall-runoff modeling
  • Stormwater management
  • Stream gaging
  • Water conservation and reuse
  • Watershed assessments