1. Introduction
1.1. Purpose
2. Site Setting
4.1 3D Visualization Model 4-1
4.2 LNAPL Presence in North Olive Stratum 4-2
4.3 LNAPL Presence in Rand Stratum 4-3
4.4 LNAPL Presence in Main Silt, EPA, and Main Sand Strata 4-4
4.5 Comparison of Historical and Recent LIF Results 4-7
4.6 LNAPL Distribution Across the Hydrostratigraphic Units 4-9
4.7 Proposed Data Collection and Updates to the Comprehensive CSM
5.1 Soil Petrophysical Analysis 5-3
5.2 LNAPL Transmissivity Measurements 5-7
5.3 Historical LNAPL Recovery within the Main Sand Stratum 5-9
5.4 Historical LNAPL Recovery at the Premcor Facility 5-11
5.5 Proposed Data Collection and Updates to the Comprehensive CSM
7. REFERENCES
Tables
Figures
2. Volatile Petroleum Hydrocarbons Recovered Via Soil Vapor Extraction System
3. Fourth Quarter 2013 Groundwater Elevations, North Olive Hydrostratigraphic Unit
4. Fourth Quarter 2013 Groundwater Elevations, Rand Hydrostratigraphic Unit
5. Fourth Quarter 2013 Groundwater Elevations, EPA Hydrostratigraphic Unit
6. Fourth Quarter 2013 Groundwater Elevations, Main Silt Hydrostratigraphic Unit
7. Fourth Quarter 2013 Groundwater Elevations, Main Sand Hydrostratigraphic Unit
8. Collocated LNAPL Sample and LIF Boring Locations
9. Collocated Benzene Effective Solubility and Dissolved Phase Concentrations
10. LNAPL Viscosity in the Rand Stratum
11. LNAPL Viscosity in the Main Sand Stratum
12. Data Points Used to Generate the 3D Model
13. Boring Locations and 3D Lithology Data Display
14. LIF Locations and 3D LNAPL Data Display
15. LNAPL Distribution in the North Olive Stratum
16. LNAPL Distribution in the Rand Stratum
17. Fluid Level Elevations Within Select Wells Screened in the Rand Stratum
18. LNAPL Distribution in the EPA and Main Sand Strata
19. Fluid Level Elevations Within Select Wells Screened Within or Across the Main Silt Stratum
20. Fluid Level Elevations Within Select Wells Screened in the EPA Stratum
21A. Fluid Level Elevations Within Select Wells Screened in the Main Sand Stratum (Areas A, B1, and B2)
21B. Fluid Level Elevations Within Select Wells Screened in the Main Sand Stratum (Areas B3/B4 and C)
22. Maximum LNAPL Thickness in the Main Sand (2003-2005)
23. Maximum LNAPL Thickness in the Main Sand (2007-2009)
24. Maximum LNAPL Thickness in the Main Sand (2011-2013)
25. Lased Induced Fluorescence Boring Locations
26. LNAPL Distribution within the Hydrostratigraphic Units
27. Schematic Diagram of the Dual Optimal LNAPL Response Model
28. Historical LNAPL Soil Core Sample Locations
29. Fluid Saturations for Soil Cores Below the Water Table in the Main Sand
30. Mobile and Residual LNAPL Saturations Based on Lab Centrifuge
31. LNAPL Transmissivity Summary for 2005 High Vacuum Recovery Pilot Testing
32. LNAPL Transmissivity Summary for 2011 Multiphase Extraction Pilot Testing
33. Locations Considered as Part of Evaluating the Dual Optimal LNAPL Response Model
34. Historical LNAPL Recovery From the Main Sand Stratum
35. Schematic Diagram of Low Flow Dual Phase Extraction and Focused Pumping
Appendices
Appendix A
Appendix B
Appendix C
Appendix D
Appendix E
Appendix F
Appendix G
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Conceptual Site Model, May 2014
Hartford Petroleum Release Site
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7.0 REFERENCES
Charbeneau, R. 2007. LNAPL Distribution and Recovery Model (LDRM). Volume 1: Distribution and Recovery of Petroleum Hydrocarbon
Liquids in Porous Media. API Publication 4760. January.
Charbeneau, R., and Beckett, G.D. 2007. LNAPL Distribution and Recovery Model (LDRM). Volume 2: User and Parameter Selection Guide.
API Publication 4760. January.
Clayton Group Services, Inc. 2003. Current Conditions Report, Premcor Refining Group, Inc., Hartford Refinery and River Dock, Hartford,
Illinois. April 28. As cited in USEPA 2010.
Clayton Group Services, Inc. 2004. FPH CPT/ROST Subsurface Investigation Report and FPH Monitoring Well and Soil Sampling Plan for the
Village of Hartford Illinois. April 2004.
Clayton Group Services, Inc. 2005. LNAPL Active Recovery System Conceptual Site Model. December 2005. Clayton Group Services, Inc.
2006. Active LNAPL Recovery System 90% Design Report. July 2006.
Engineering Science, Inc. 1992. History of Hydrocarbon Releases in the Village of Hartford, Illinois. March. As cited in Clayton Group
Services, Inc. 2006.
H2A. 2006. LNAPL Recharge and Production Investigation, The Hartford Area Hydrocarbon Plume Site, Hartford, Illinois. January.
(Appendix D to Clayton 2006 Proposal for Active LNAPL Recovery System).
RAM Group of Gannett Fleming, Inc. 2013. Apex Access Database entitled Apex_ProjectDatabase.mdb. November 12.
St. John-Mittelhauser & Associates (SM&A). 2014. 2013 Annual Progress Report Including Fourth Quarter 2013 Premcor Main Facility,
The Premcor Refining Group, Inc., Hartford Facility, Hartford, Illinois. February 27.
Trihydro Corporation. 2013a. Final Light Non-Aqueous Phase Liquid Recovery Pilot Test Work Plan Addendum, Hartford Petroleum Release
Site, Hartford, Illinois. July 19.
Trihydro Corporation. 2013b. Final Dissolved Phase Investigation Work Plan, Hartford Petroleum Release Site, Hartford, Illinois. August 9.
Trihydro Corporation. 2013c. Comprehensive Conceptual Site Model Framework and Timeline, Hartford Area Hydrocarbon Plume Site.
August 12.
United States Environmental Protections Agency (USEPA). 2013. Assignment Letter for the Hartford Area Hydrocarbon Site. April 2013.
United States Environmental Protection Agency (USEPA). 2010. Innovations in Site Characterization, Streamlining Cleanup at Vapor
Intrusion and Product Removal Sites Using the Triad Approach: Hartford Plume Site, Hartford, Illinois. 542-R-10-006. September.
URS Corporation. 2014. HWG EQuIS Database entitled APEX_misc.sq. February 11.
URS Corporation. 2013. HSVE Monitoring and Maintenance Manual, Hartford Working Group. December. WSP Environment & Energy. 2011.
Light Non-Aqueous Phase Liquid Recovery Pilot Test Work Plan, Apex Oil Company, Inc., Hartford, Illinois. July 1. Revised:
September 2.
WSP Environment & Energy. 2012. Light Non-Aqueous Phase Liquid Recovery Pilot Test Interim Report, Apex Oil Company, Inc.,
Hartford, Illinois. July 5.