Technology Status Report: In Situ Flushing - CLU-IN

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In Situ Flushing Project Summaries GWRTAC Case Study Database GWRTAC ID: FLSH0007 Project Name: Cross Brothers Pail, Pembroke, IL City: Pembroke State/Province: IL Primary GWRTAC Personal Communication Source (Name/Organization): Project Summary: Sherry Biachin U.S. EPA Report(s)/Publication(s) (GWRTAC Source): Internet URL http://www.epa.gov/superfund/index.htm U.S. Environmental Protection Agency, 1991: Engineering Bulletin In Situ Soil Flushing, EPA/540/2-91/021, U.S. EPA Office of Emergency and Remedial Response (OERR), Washington, DC 20460, Office of Research and Development (ORD), Cincinnati, Ohio 45268, 8 pp., October 1991. The following text is from notes taken from Internet URL http://www.epa.gov/superfund/index.htm, May 1997 and July 1998 conversations with the U.S. EPA RPM, and from July 1998 conversations with the PRP spokesperson, and a technical team member. Site is located approximately 14 miles east of the town of Kankakee, IL, within Pembroke Twp., Kankakee County. Site consists of a 20-acre parcel of land. Cross Brothers operated a drum and pail reclaiming operation at the site from 1961 until 1980. The operation employes a crude process to incinerate the residue material contained in drums and pails received for reconditioning. Essentially, the operation consisted of inverting the containers to allow the residue material to drain out onto the ground. Then solvent would be added to the containers to dissolve any remaining residue. Throughout the process, the operation was haphazard, allowing indiscriminant dumping of great quantities of residues (largely dyes, pigments, inks, and solvents). PCB-contaminated soil was excavated. Wells are pumped to remove ground-water, and treatment occurs above-ground. Re-injection of treated groundwater for flushing of source area vadose zone contamination occurs via a sprayfield, with sprinklers, and for flushing the saturated portion of the aquifer, occurs though injection wells downgradient of the source area. Extraction and injection wells are also utilized to maintain hydraulic control at the downgradient edge of the contaminant plume. The source area is approximately four to six acres in extent. areal extent. A confining clay layer is present at 45 to 50 feet below the ground surface, and the water table is variable with season, from four to eight feet below the ground surface. There is not a slurry wall or other physical construct present at the site acting as an engineered barrier. Injection and extraction wells immediately downgradient of the source area, and injection and extraction wells immediately downgradient of the downgradient (leading) edge of the contaminant plume are installed to a depth one foot above the confining clay layer. The targeted unconfined aquifer consists of very well sorted, fine-grained sand. Standard MCLs are the treatment goal. Ground-Water Remediation Technologies Analysis Center Operated by Concurrent Technologies Corporation Appendix - Page 12 of 164 Copyright GWRTAC 1998 Revision 1 Tuesday, November 17, 1998
In Situ Flushing Project Summaries GWRTAC Case Study Database Project designed for 100% re-injection of treated ground-water, however, problems with plugging had occurred. Project duration was projected for 15 to 20 years. Performance data is presented in quarterly reports to U.S EPA, results are generally good. Only standard difficulties occurred during implementation. Report(s)/Publication(s) (Additional Information Sources): Internet URL http://www.epa.gov/superfund/index.htm U.S. Environmental Protection Agency, 1991: Engineering Bulletin In Situ Soil Flushing, EPA/540/2-91/021, U.S. EPA Office of Emergency and Remedial Response (OERR), Washington, DC 20460, Office of Research and Development (ORD), Cincinnati, Ohio 45268, 8 pp., October 1991. Ground-Water Remediation Technologies Analysis Center Operated by Concurrent Technologies Corporation Appendix - Page 13 of 164 Copyright GWRTAC 1998 Revision 1 Tuesday, November 17, 1998
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Technology Status Report Technology
Page 3 and 4:
ABSTRACT This technology status rep
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LIST OF TABLES Table Title Page 1 I
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1.0 INTRODUCTION / PURPOSE OF STATU
Page 9 and 10: a laboratory-scale project. As illu
Page 11 and 12: 3.1 Flushing Solutions 3.0 ANALYSIS
Page 13 and 14: (approximately eight) full-scale pr
Page 15 and 16: Table 1. In Situ Flushing - Summary
Page 21 and 22: Table 3 In Situ Flushing - Geology
Page 27 and 28: Table 4 In Situ Flushing - Recovere
Page 33 and 34: Full-Scale/Commercial 26% Figure 2.
Page 35 and 36: Site Remediation 25% Figure 4. In S
Page 37 and 38: NAPL Removal 34% Figure 6. In Situ
Page 39 and 40: Figure 8. In Situ Flushing - Distri
Page 41 and 42: Number of Projects 35 30 25 20 15 1
Page 43 and 44: Number of Case Studies 45 40 35 30
Page 45 and 46: 25 ft and 50 ft and 10 ft and 100 f
Page 47 and 48: Unconfined Aquifer 65% Figure 16. I
Page 49 and 50: In Situ Flushing Project Summaries
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Technology Status Report: In Situ Flushing - CLU-IN

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