SGC has performed numerous environmental projects throughout Arizona. SGC hydrogeologists specializing in environmental services have extensive experience performing Phase I, II, and Phase III Environmental Site Assessments (ESAs) conducted pursuant to due diligence procedures set forth under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). Additional environmental capabilities include: characterization / closure of landfills and Leaking Underground Storage Tank (LUST) sites, remedial design preparation, and compliance monitoring, testing, and reporting. Our highly-capable environmental specialists have successfully managed complex multi-million dollar projects involving complete characterization, treatment, and closure of Water Quality Assurance Revolving Fund (WQARF) sites and U.S. Environmental Protection Agency (EPA) Superfund sites.


  • Phase I, II, and III ESAs
  • Characterization/Closure of: landfills, LUST sites, WQARF sites, and U.S. EPA Superfund sites
  • Remedial design
  • Compliance monitoring, testing, and reporting