In-Situ Remediation

• Identification of Data Gaps (60 min)

• • Quantitative High Resolution Site Characterization (qHRSC) and 3D Modeling – Duane Guilfoil, President, AST Environmental, Inc.
  • Working Smarter Not Harder to Characterize Fractured Bedrock (0.5 CECs) – Derek Pizarro, CPG, Sr. Product Mgr., AST Environmental, Inc.

• In Situ Remediation Technologies for VOCs (60 min)

• • Trap and Treat Approach – Petroleum Hydrocarbon Remediation (0.5 CECs) – Duane Guilfoil, President, AST Environmental, Inc.
  • Trap and Treat Approach – Solvent Remediation (0.5 CECs) – Derek Pizarro, CPG, Sr. Product Mgr., AST Environmental, Inc.
• Shielding Against Vapor Intrusion Using Spray-Applied Barrier Technology (30 min) – Matt Geary, Technical Sales Manager, Environmental Products, CETCO
• Heavy Metals Treatment with Abiotically Synthesized Iron Sulfides (30 min) – Derek Pizarro, CPG, Sr. Product Mgr., AST Environmental, Inc.
• Remediation of PFAS Using Patented Adsorbent Technology (30 min) – Matt Geary, Technical Sales Manager, Environmental Products, CETCO
• Emplacement of Slurries Using High-Energy Injection (90 min)

• • Remediation Success with the Trap and Treat Approach (0.5 CECs) – Duane Guilfoil, President, AST Environmental, Inc.
  • GeoTAP Method: Overcoming Unconsolidated DPT Refusal with Pre-Drill (0.5 CECs) – Derek Pizarro, CPG, Sr. Product Mgr., AST Environmental, Inc.
  • Unlocking the Secrets to Fractured Bedrock Injection (0.5 CECs) – Duane Guilfoil, President, AST Environmental, Inc.

Morning Session 10:00 am to 12:00 pm

• Data Gaps – Identification and Resolution: Quantitative High Resolution Site Characterization (QHRSC) and 3D Modeling – Nathan Thacker, Senior Geologist, AST Environmental, Inc.; David Heicher, Founder, GeoImaging Systems, LLC )
  • Conventional sampling program limitations and benefits of high-density sampling for in situ remediation
  • Implementing a high-density soil and groundwater sampling program in the field
  • Qualitative HRSC tools, methods and data interpretation
  • Integrating high-density data with other information sources (historical data, qualitative screening tools, geophysical surveys) to refine the CSM
  • Development of 3D data visualizations and refinement of legacy conceptual site models.

• In-Situ Remedial Technologies: VOCs and Petroleum Hydrocarbon Remediation Using In Situ Products – Derek Pizarro, CPG, Sr. Product Mgr., AST Environmental, Inc.
  • Trap & Treat Technologies – Technology, selection, speciated data, and key design parameters
  • Differences and drawbacks among various activated carbon platforms – slurries vs liquids
  • How is Trap & Treat more than just sequestration?

• Vapor Intrusion Mitigation: Shielding Against Vapor Intrusion Using Spray-Applied Barrier Technology – Matt Geary, Technical Sales Manager, Environmental Products, CETCO
  • Spray applied Gas Vapor Barrier technology including the latest diffusion coefficients for COCs and a discussion of the EVOH technology in the Liquid Boot Plus system.

Catered Lunch Provided: 12:00 to 1:00 pm

Afternoon Session 1:00 pm to 4:00 pm

• In-Situ Remedial Technologies: Heavy Metals Treatment with Abiotically Synthesized Iron Sulfides – Derek Pizarro, CPG, Sr. Product Mgr., AST Environmental, Inc.
  • Mackinawite Structured Iron Sulfides
  • Metal and mixed metal treatment chemistries
  • Remediation applications and examples
  • GeoTAP and hexavalent chromium case study
  • Coal ash bench study

• Primer on Environmental Liability and Emerging Legal Issues
  • Background on types of environmental liability, due diligence standards and Phase I ESAs
  • Overview of risk-based remediation standards and institutional controls
  • Update on regulation of PFAS and other emerging compounds

• In Situ Remedial Technologies: Remediation of PFAS Using Patented Adsorbent Technology – Matt Geary, Technical Sales Manager, Environmental Products, CETCO
  • Fluoro-Sorb® Adsorbent technology – A review of university data, case studies and deployment methods.
  • Full spectrum binding across the spectrum of PFAS, including PFOA, PFOS, PFHxS, and PFNA
  • Impact by co-contaminants in the waste stream, such as gasoline- and diesel-range hydrocarbons, chlorinated solvents, natural organic matter (NOM), salinity, and pH, in comparison to other PFAS adsorbents.

• In Situ Amendment Delivery Methods: Emplacement of Slurries Using High-Energy Injection and Soil Mixing Methods – Nathan Thacker & Derek Pizarro, AST Environmental, Inc.
  • Optimized emplacement methods in overburden, transition zone, saprolite, and bedrock geologies
  • Design variables: Injection point spacing, flow rate and pressure, slurry volumes
  • Injection systems, tooling
  • Quality control, performance monitoring

• The Consultant’s Perspective: Assembling the [Puzzle] Pieces for your Project – Lydia Ross, PE, GEI Consultants
  • Discussion will highlight available tools and resources and share lessons learned through practical applications of in situ remedial technologies at 100s of sites
  • Pitfalls and tips
  • Provide tangible takeaways that can be implemented throughout the project life-cycle to increase efficacy and help you achieve your remedial goals

• Wrap-up and Final Q&A – Panel Style Discussion

GWPNC Social at Primal Brewery – 4 pm to 7 pm Sponsored by AST Environmental & CETCO

 Join us at Primal Brewery, located next door to the workshop venue for complimentary locally crafted brews at the GWPNC Social – a chance to network, debrief and discuss the day’s learnings in a casual setting.