Hydrologic Impact Analysis

Tools for quantifying the impacts of historical, ongoing, or planned pumping


Pumping — especially large-scale and/or long-term pumping — has the potential to impact springs, lakes, and streams, as well as other water users. It can also create unanticipated adverse water quality effects. Such impacts can have technical, legal, and financial implications.

Whether we are helping clients quantify the impacts of their own pumping or others, M&A brings a solid technical, regulatory, and economic understanding to the process. In cases involving historical impacts or current / future pumping that could impact water resources, we work with clients and their legal counsel to understand risks, develop mitigation strategies, and present their case. M&A has the tools to evaluate and quantify impacts and develop robust technical arguments. Because pumping often involves both tangible and intangible costs, we consider the potential future availability and value of water resources when evaluating possible outcomes.


  • Collecting and evaluating pumping, water level, hydrochemical, and aquifer hydraulic data to characterize drawdown and water quality impacts
  • Establishing relationships between pumping and water levels, precipitation, evapotranspiration, and runoff to characterize baseline conditions
  • Assessing the current and future capture of spring flow and/or surface water by pumping, as well as interference effects between pumping centers
  • Applying statistical tools to distinguish changes caused by climatic conditions from those resulting from human activities
  • Developing models that can be used to distinguish impacts by various entities and evaluate the benefits of alternative mitigation strategies