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Environmental and NEPA

Gillespie Dam Bridge 2
Gillespie Dam Bridge 2
P1030792 triangle bar ranch AGFD historic structure
P1030792 triangle bar ranch AGFD historic structure
SR 69 89 TI Asbestos Survey1
SR 69 89 TI Asbestos Survey1
Bridge - Stone Arch-small
Bridge - Stone Arch-small
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Commonwealth offers environmental consulting services throughout Arizona. Our environmental staff are experts providing clients with innovative and cost-effective solutions for their environmental challenges. Each project’s performance is continually measured against schedule and budget to achieve our clients’ environmental, safety, and business goals.

Environmental and NEPA services include:

  • Total environmental project management
  • NEPA documents and compliance
  • Biological assessments, evaluations, and surveys
  • Clean Water Act Section 404 Permits
  • Surface water assessments
  • River assessment and monitoring
  • Phase I environmental site assessments
  • Stormwater Pollution Prevention Plans
  • Aquifer Protection Permits
  • AZPDES/NPDES Permits
  • Hazardous and solid waste program development
  • Geology and geomorphology
  • Applied fluvial geomorphology
  • FERC environmental projects/inspectors