ABOUT DIVISION 31 GEO - AVIATION GROUP

NATIONAL LEADERS IN PFAS INVESTIGATION, REMEDIATION & SOIL MANAGEMENT

WHERE ENVIRONMENTAL CONTAINMENT MEETS AVIATION INFRASTRUCTURE

AVIATION‑FOCUSED. ENGINEERING-DRIVEN. BUILT BY EXPERTS ACROSS DISCIPLINES.

Division 31 GEO is comprised of a highly specialized team of civil engineers, environmental scientists, analytical chemists, soil scientists, microbiologists, construction professionals, and project managers. Our diverse backgrounds allow us to solve the most complex PFAS and contaminated‑soil challenges in aviation.

We specialize exclusively in PFAS and co-contaminant investigation, remediation, and soil management for aviation environments. As a Midwest-based company with regional aviation project teams located across the United States, we support airports in every region through a combination of turn-key programs, on-demand services, and flexible service options.

OUR OVERARCHING PHILOSOPHY

We are committed to treating, stabilizing, and managing impacted soils on-site whenever feasible - reducing hazard potential, minimizing off-site disposal, and, where conditions allow, restoring soils to a condition that no longer requires hazardous classification and may be suitable for safe, controlled reuse within the airport environment.
This philosophy guides every investigation, design, construction decision, and long‑term stewardship program we deliver.

We work seamlessly with:

  • Airport management and operations
  • Prime engineering consultants
  • General contractors
  • ARFF and maintenance leadership
  • Environmental compliance teams

We can serve as your project lead, sub‑consultant, subcontractor, owner’s representative, or site manager of record, engaging at any stage of the project lifecycle.

WHO WE ARE

AVIATION GROUP OVERVIEW

Division 31 GEO is headquartered in Indianapolis, Indiana, with regional aviation project teams supporting airports nationwide. We specialize exclusively in PFAS and co-contaminant investigation, remediation, and soil management for aviation environments - from major commercial hubs to rural GA airports, heliports, and military airfields.

Our Team

We are a multidisciplinary group of:

  • Environmental and civil engineers
  • Hydrogeologists and fate‑and‑transport modelers
  • Analytical chemists and laboratory specialists
  • Soil scientists and microbiologists
  • Construction and earthwork professionals
  • Project managers and regulatory strategists

This diversity allows us to bridge the gap between environmental science, airport operations, and construction execution - delivering solutions that are technically rigorous, operationally aligned, and construction-ready.

CORE SERVICES AREA

PFAS Site Investigation & Characterization

  • Multi-phase environmental assessments
  • Multi-media sampling (soil, groundwater, stormwater, sediment, air)
  • EPA Method 1633 coordination
  • Conceptual Site Model development
  • Isometric visualization of PFAS distribution
  • Integration with civil and geotechnical investigations

ON-SITE CONTAINMENT SOLUTIONS

Division 31 GEO designs and implements advanced containment systems that support safe, compliant, and construction-ready management of PFAS-impacted and co-contaminated soils across active airfields.

Capabilities

  1. Storage cell design and construction
  2. Containment cell monitoring systems
  3. Stormwater conveyance and control systems
  4. Engineered PFAS containment cells for long‑term soil management
  5. Capping systems for in‑place containment and groundwater protection
  6. Lined underground storage tank (UST) containment systems
  7. Underground vault deicing and AFFF runoff collection systems
  8. Transformer and fuel farm secondary leak containment systems
  9. Below‑grade containment systems for hangars and maintenance facilities
  10. Slab‑on‑grade vapor intrusion barrier systems for terminals, administrative offices, and occupied airport buildings

OUR CONTAINMENT PHILOSOPHY

Our containment systems are designed to reduce contaminant mobility and eliminate exposure pathways, supporting our broader mission of restoring soils to the safest, most beneficial condition feasible within active airfield environments.

Remedial Design & Implementation

  • Soil management alternatives
  • Soil washing & thermal treatment
  • Stabilization/solidification
  • Stormwater treatment for PFAS
  • Design-build delivery

REGULATORY STRATEGY & COMPLIENCE

Airports face a rapidly evolving PFAS regulatory landscape. We help you stay ahead of it.

Capabilities

  • Navigation of federal, state, and local PFAS regulations
  • Work plans, sampling plans, and closure documentation
  • Cleanup standard negotiation
  • Risk assessment & exposure pathway analysis
  • Institutional controls & groundwater restrictions
  • Expert testimony & litigation support

CONSTRUCTION SUPPORT & SOIL MANAGEMENT

We integrate environmental management directly into airport construction.

Capabilities

  • Pre‑construction PFAS planning
  • Real-time field screening
  • Waste segregation & stockpile management
  • PFAS-aware earthwork practices
  • Stormwater controls
  • Verification sampling & waste profiling
  • As-built documentation

LONG-TERM MONITORING & STEWARDSHIP

We support airports long after construction ends.

Capabilities

  • Groundwater monitoring networks
  • Stormwater & sediment monitoring
  • Remedial system performance tracking
  • Data management & trend analysis
  • Adaptive management recommendations
  • Institutional control verification

SPECIALIZED AVIATION CAPABILITIES

Operational Continuity Focus

  • Minimal disruption to airfield operations
  • Phased approaches aligned with CIP schedules
  • Rapid mobilization for construction-critical work
  • 24/7 emergency response

Aviation Regulatory Integration

  • FAA coordination & AIP compliance
  • ARFF operational continuity
  • Airfield safety & certification integration
  • Joint civilian/military airport expertise

Cost Optimization Strategies

  • Value engineering
  • Soil reuse strategies
  • Disposal pathway optimization
  • Grant funding support

PROPRIETARY TOOLS & METHODOLOGIES

Proprietary Tools Developed for Airports

Airport Loading Ratio (ALR)

Quantifies PFAS mass contribution from each source area to prioritize investigation and remediation.

PFAS Soil Burden Index (PSBI)

Scores airport-wide PFAS risk based on operational history, hydrogeology, receptors, and CIP needs.

Landfill Acceptance Probability Model

Predicts landfill acceptance likelihood based on PFAS concentrations, co-contaminants, and facility policies.

Patented & Licensed Technologies

Division 31 GEO holds patents and licenses in:

  • PFAS soil separation and destruction
  • Contaminated soil dewatering technologies
  • TPH, BTEX, PCB, PAH, VOC, SVOC, PCE & TCE soil treatment processes

PROJECT PARTNERS AND PROVIDERS

Our Project Partners & Technology Providers

Division 31 GEO collaborates with a network of industry‑leading engineering, analytical, and remediation partners to deliver the most advanced PFAS solutions in aviation.

Partner Capabilities Include

  • Advanced PFAS analytical laboratories
  • Soil washing and thermal treatment providers
  • Stabilization/solidification reagent developers
  • PFAS-specific stormwater treatment manufacturers
  • Civil and environmental engineering partners
  • PFAS‑aware construction contractors
  • GIS and data-visualization technology providers
  • Solid waste industry partners for disposal, acceptance modeling, and landfill coordination
  • Remediation technology companies providing cutting-edge PFAS destruction and separation systems

PROFESSIONAL QUALIFICATIONS

Professional Licensure & Certifications

  • Professional Engineers (PE)
  • Professional Geologists (PG)
  • Certified Hazardous Materials Managers (CHMM)
  • 40-Hour HAZWOPER + Supervisor
  • OSHA 30-Hour Construction Safety
  • Airfield Driving & Safety Certifications

Staff Expertise

  • Civil engineering
  • Environmental engineering
  • Hydrogeology & fate-and-transport modeling
  • Environmental chemistry
  • Soil science & applied microbiology
  • Remediation technology design
  • Regulatory compliance & risk assessment
  • Construction management

HOW TO ENGAGE DIVISION 31 GEO

How to Engage Us

Airports can engage D31 GEO through turn-key programs, on-demand services, or selectable service components.

Initial Consultation (No Cost)

  • 60-90 minute PFAS strategy session
  • Review of existing data
  • Preliminary approach & cost ranges

Scoped Proposal Development

  • Defined objectives
  • Technical approach
  • Deliverables & timeline
  • Transparent cost estimate

Project Execution

  • Weekly updates
  • QA/QC at all stages
  • Budget tracking
  • Operationally aligned fieldwork

Continued Partnership

  • On-call PFAS support
  • Annual regulatory strategy sessions
  • Staff training
  • Expert testimony

AVIATION-FOCUSED. TURN-KEY. ON-DEMAND. POWERED BY INNOVATION.

Division 31 GEO provides flexible service options and selectable service components that match your airport’s operational, regulatory, and construction needs. Our multidisciplinary team - spanning civil engineering, environmental science, analytical chemistry, soil science, microbiology, construction, and project management - delivers clarity, certainty, and technical depth.

With regional aviation project teams located across the United States, and with patented and licensed technologies in PFAS soil separation and destruction, contaminated soil dewatering, and TPH/PCB/PAH treatment, along with partnerships across the solid waste industry and leading remediation technology providers, we bring unmatched capability to every aviation project.