John Shomaker & Associates, Inc. (JSAI) is an employee-owned corporation providing Professional Hydrogeologic Services in the areas of
water-resource development, water modeling, and environmental assessment.
Our clients have included federal and state agencies, counties, communities, tribes, water utilities, water users associations, mining
companies, private companies, and individuals.
JSAI principals and senior level staff members each have at least 15 years of experience, with over 150 years of combined experience. To learn
more about our team click here.