1. Fairbanks Areawide Industrial Reclamation Project ADEC AREAWIDE MANAGEMENT GOALS Janice Wiegers ADEC

2. Areawide vs. Site Specific Approach  Sites viewed in context with others, not individually  Data can be shared, eliminating redundancy  Co-mingling issues more easily resolved  Variability of scale allows new information to emerge

3. For ADEC Map site locations Map site locations Determine site status (open, closed, how much work is needed) Determine site status (open, closed, how much work is needed) Identify preliminary data gaps Identify preliminary data gaps Identify PRPs Identify PRPs Possibly involved in data collection, investigation, coordination, cleanup if necessary Possibly involved in data collection, investigation, coordination, cleanup if necessary

4. Fairbanks Areawides

5. Common ADEC Requirements for All Responsible Parties 1)Delineate nature and extent (18 AAC 75.335) 2)Evaluate risk to current and future land users 3)Protection of current & future land users through ICs 4)Cleanup and management plans 5)Consistent and compatible reporting for purposes of information dissemination Proactive and solution oriented

6. 1) Delineate contamination Identify all possible sources and COCs Identify all possible sources and COCs Identify conditions that could result in ongoing releases (buried piping, tanks, abandoned injection wells, etc.) Identify conditions that could result in ongoing releases (buried piping, tanks, abandoned injection wells, etc.) Delineate extent of contaminants in soil and groundwater (on and off-property) Delineate extent of contaminants in soil and groundwater (on and off-property) Long-term monitoring necessary to monitor groundwater quality

7. FAIR Coordinated Sampling Spring Sampling – 3 rd week in April Spring Sampling – 3 rd week in April Fall Sampling – 3 rd week in September Fall Sampling – 3 rd week in September Common benchmark for groundwater elevation Common benchmark for groundwater elevationProblems Shared groundwater data (EDDs) Shared groundwater data (EDDs) Shared reporting (currently handled by DEC) Shared reporting (currently handled by DEC)

8. FAIR Coordinated Sampling General Results Product present on every site Dissolved Benzene/GRO at highest concentrations at southern end DRO/RRO throughout area Off-site delineation not complete

9. 2) Evaluate Risk FAIR Risk Management Zones – Commercial/Industrial FAIR Risk Management Zones – Commercial/Industrial CSM needed for this area CSM needed for this area Hydrogeologic characteristics Hydrogeologic characteristics Contaminant location and transport characteristics Contaminant location and transport characteristics Possible Exposure Pathways Possible Exposure Pathways Are there risks to human health or the environment that need to be controlled or mitigated? Are there risks to human health or the environment that need to be controlled or mitigated? Wells or dewatering activities? Wells or dewatering activities? Indoor air quality problems? Indoor air quality problems? Risks should be mitigated through cleanup or risk management

10. FAIR Risk Management Plan

11. Risk Management Zones

12. 3) Cleanup and Management Plan What are the site-specific requirements? What are the site-specific requirements? Control risk Control risk Remove source/product Remove source/product Reduce the life of the plume and long-term monitoring requirements (flexible) Reduce the life of the plume and long-term monitoring requirements (flexible) Compatible with the land owner needs? Compatible with the land owner needs? Schedule? Schedule? Plan should balance cleanup and management options with expected site use and cost considerations

13. 4) Institutional Controls Necessary now – not later Necessary now – not later Better long-term management of contamination is priority for DEC Better long-term management of contamination is priority for DEC IC plan should be coordinated with Railroad IC plan should be coordinated with Railroad RP will continue to be responsible when utilities or other parties encounter contamination RP will continue to be responsible when utilities or other parties encounter contamination Compliance review is necessary Compliance review is necessary If managed properly, contamination should NOT prevent property transactions or reuse

14. Construction Projects: Balloon Tracks Minnie Street Connector Illinois Street Widening

15. 5) Information Management Must be able to articulate useful information to the public regarding contaminated sites Must be able to articulate useful information to the public regarding contaminated sites In order to clarify potential liability considerations In order to clarify potential liability considerations Reduce economic impacts - adjacent and future property use/sale/development Reduce economic impacts - adjacent and future property use/sale/development Must know extent of impacts Must know extent of impacts Plume maps Plume maps Estimated areas of soil contamination Estimated areas of soil contamination

16. Summary Delineate Delineate CSM/Risk Evaluation CSM/Risk Evaluation IC Plan IC Plan Cleanup and Management Plan Cleanup and Management Plan

17. Milestones Milestones ADEC send letter requesting CSM and explanation ADEC send letter requesting CSM and explanation Need information on downgradient MSLUG wells (ADEC) Need information on downgradient MSLUG wells (ADEC) Contaminated site map with addresses – provide CIMMS website (ADEC) Contaminated site map with addresses – provide CIMMS website (ADEC) Workplan (provide schedule or work) – May 30 Workplan (provide schedule or work) – May 30 Need entry permit from railroad for drilling or sampling on railroad party Need entry permit from railroad for drilling or sampling on railroad party Need letter of consent from tenants Need letter of consent from tenants Off-site delineation (characterization) Off-site delineation (characterization) Preliminary CSM – Characterization report Preliminary CSM – Characterization report Wells, surface soil exposure, indoor air issues? Wells, surface soil exposure, indoor air issues? Groundwater sampling (third week April 2005) Groundwater sampling (third week April 2005) Product sample from Chevron and Railroad Product sample from Chevron and Railroad Look into common lab – Look into common lab – Coordinate sampling protocol (document that this will happen in the workplan) Coordinate sampling protocol (document that this will happen in the workplan) Share data for interpretation by each party Share data for interpretation by each party Janice – ADEC contact Janice – ADEC contact

18. FAIR – Solvents at North End (HIDE)