Environmental Compliance & Permitting

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Environmental compliance & permitting solutions

Audubon provides integrated environmental compliance and permitting strategies for a broad range of oil and gas infrastructure, utilities, water, and transportation projects. With our in-house interdisciplinary team of specialists, we deliver effective and practical solutions to manage environmental compliance costs, avoid unexpected delays, and complete projects. We currently serve federal and state agencies, departments of transportation (DOTs), municipalities, counties, utility authorities, and private companies.

Our team of professionals, which includes scientists, biologists, archeologists, and engineers of various disciplines, has extensive experience in handling a wide array of environmental project needs from concept to completion. With unparalleled knowledge of permitting and regulation protocols, our specialists take pride in achieving successful environmental permitting outcomes by ensuring our clients have the necessary support, verifications, and permits to safeguard compliance throughout the project lifecycle.

Air quality services for environmental compliance & permitting

  • Construction & operating permits (PBR, NSR, Title V, PSD)
  • Dispersion modeling
  • Emission control technical reviews (BACT, RACT, LAER)
  • Emission monitoring & testing
  • Emission reporting
  • Federal regulatory compliance (MACT, NESHAP, NSPS)
  • GHG permitting, reporting, & verification
  • Leak detection & repair (LDAR)
  • Odor & noise safety radii modeling (%LEL)

Cultural resources for environmental compliance & permitting

  • In-house archaeological clearance surveys
  • Archaeological monitoring
  • Eligibility & management recommendations
  • National Historic Preservation Act (NHPA) consultation
  • Antiquities Code of Texas permits
  • Bureau of Land Management (BLM) cultural resource use permit for archaeological investigations
  • General archeological investigation permit for New Mexico state land

Hazardous materials & waste management services

  • Emergency Planning and Community Right-to-Know Act (EPCRA) reporting (Tier II, TRI)
  • Resource Conservation and Recovery Act (RCRA) permitting, compliance, & unit closures
  • Spill prevention, control, & countermeasure (SPCC) plans
  • Spill response & reporting
  • Waste minimization & contingency plans

Natural resources services for environmental compliance & permitting

  • Wetland & water delineations
  • U.S. Army Corps of Engineers 404/10 permitting
  • Threatened & endangered species assessments
  • Alternatives analysis & project impacts justification
  • Mitigation planning & monitoring
  • Drainage studies
  • Hydrologic & hydraulic modeling
  • Coastal zone management permitting
  • Floodplain & floodway impact permitting
  • Hydrographic, oyster, & seagrass surveys

Oil & gas infrastructure

  • Desktop assessment constraints analysis & permitting matrix
  • Pipeline route studies
  • U.S. DOT PHMSA 49 CFR 192 & 195
  • Well location site selection & drilling permits
  • Drilling fluid & other waste management
  • Hydrogen sulfide contingency plans
  • Railroads, road crossings, & encroachments
  • Waste pit & brine pond permitting

Safeguarding compliance throughout the project lifecycle.

Project experience

Cushing Connect Pipeline & Terminal | Audubon Companies


Cushing Connect Pipeline & Terminal

Coyanosa, Texas

XTO Patriot Pipeline | Audubon Companies | Project Management of Oil and Gas Pipelines


Patriot Pipeline

West Texas

Explorer Irving Station | Audubon Companies


Explorer Irving Station

Irving, Texas

Annova LNG | Audubon Companies | Gas Processing Technologies and LNG


Annova LNG

Cameron County, Texas