Hydrogeologic expertise for projects that require state and federal permits


M&A has extensive experience investigating hydrologic impacts of proposed actions for Environmental Impacts Studies (EIS) as required by the National Environmental Protection Act (NEPA) and the California Environmental Quality Act (CEQA). We have an in-depth understanding of the type of information expected as part of NEPA type baseline studies. We prepare the water resource portions of EIS submittals using hydrologic models, field investigations, historical records review, and remote sensing to document surface water and groundwater conditions and evaluate potential project impacts. M&A also assists with the public input process by working with federal, tribal, state, local, and other agencies, as well as with local and special interest groups. Our experts deliver public presentations that are clear, objective, and defensible, and we are known for communicating complex concepts in a way that is understandable to a range of audiences.


  • EIS/EIR/NEPA on United States Forest Service (USFS) land
  • CEQA compliance
  • Characterizing surface water and groundwater resources at site-specific and regional scales
  • Formulating a range of alternative actions
  • Evaluating impacts of various actions and mitigation strategies to water quality and quantity using numerical and analytical models
  • Designing methods for assessing impacts
  • Designing and implementing data-collection programs
  • Preparing reports, submittals, and responses to public comments