Water Rights

Technical expertise to support legal proceedings and settlement negotiations


M&A has more than 35 years of experience providing technical support for water rights claims and legal proceedings for both surface water- and groundwater-related issues. Working directly with negotiating parties or through legal counsel, we provide a sound foundation that improves the efficiency and outcome of legal or transactional negotiations.


  • Legal assistance including expert witness and litigation support for stream adjudications within Arizona, groundwater adjudications within California, and other water rights claims
  • Litigation strategy support for claims related to surface water depletions caused by groundwater pumping
  • Tribal water claims and settlements, including evaluating water supplies and demands as the technical basis for water rights claims
  • Negotiations, including the sever and transfer of water rights