Technology Status Report: In Situ Flushing - CLU-IN

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LIST OF FIGURES (Cont.) Figure Title Page 13 In Situ Flushing - Containment Method (Pilot/Field Demonstrations 38 and Full-Scale/Commercial Projects Only) 14 In Situ Flushing - Maximum Depth of Treatment Zone (Pilot/Field 39 Demonstrations and Full-Scale/Commercial Projects Only) 15 In Situ Flushing - Average Hydraulic Conductivity of Treatment 40 Zone (Pilot/Field Demonstrations and Full-Scale/Commercial Projects Only) 16 In Situ Flushing - Hydrogeologic Setting of Target Contaminants 41 (Pilot/Field Demonstrations and Full-Scale/Commercial Projects Only) APPENDIX APPENDIX - GWRTAC Information Sources, Project Summaries, and Additional References Ground-Water Remediation Technologies Analysis Center © GWRTAC Operated by Concurrent Technologies Corporation Page v Revision 1 11/17/98
1.0 INTRODUCTION / PURPOSE OF STATUS REPORTS The Ground-Water Remediation Technologies Analysis Center (GWRTAC) continually compiles laboratory-, pilot- and full-scale case study information for a variety of innovative in situ technologies for ground-water and soil remediation. At this time, GWRTAC’s case study database contains approximately 525 case studies. Periodically, GWRTAC will provide “S” Series Status reports based on information contained in the GWRTAC case study database for a selected technology. GWRTAC’s case study database is not represented as being comprehensive, nor are the case studies included screened to verify their validity, quality, or “success” in remediation. Rather the case study database and resultant status reports are intended to provide members of the ground-water remediation community with basic information on activity in laboratory research, field demonstration, or full-scale application of innovative technologies in both the public and private sectors. The GWRTAC database was designed in a manner to allow analysis of the use of each innovative technology monitored by GWRTAC, which is accomplished by the preparation of various tables and charts to reveal trends in technology application. This analysis, presented in the “S” Series Status reports, is by GWRTAC, and is based solely on the information in the GWRTAC database. The status reports are provided as a “snapshot” of the contents of GWRTAC’s “living” case study database. As such, status reports for a given technology will be repeated in the future to reflect additional case study information compiled, and/or updates/revisions/additions to the database. Submission of innovative technology case study information to GWRTAC via our on-line data submittal form (http://www.gwrtac.org) or by calling GWRTAC (1-800-373-1973) will allow GWRTAC to continue updating the database. Such notifications are appreciated, and may be followed with a request for additional information when GWRTAC focuses on the technology prior to preparation of an “S” Series report. In addition to this Section 1.0, Introduction / Purpose of Status Reports, the remainder of this report is organized as follows. Section 2.0, In Situ Flushing Summary, reviews and shows trends related to general information such as the scale and status of the in situ flushing projects in the database, project objectives, contaminant source (whether existing or introduced), target media, and project locations. Section 3.0, Analysis of In Situ Flushing Technology, provides GWRTAC’s analysis of trends in use of flushing solution, contaminant classes addressed, delivery and extraction and containment methods, project results and identified issues, and research needs. Section 4.0, Summary, provides a final overview of in situ flushing technology. The Appendix contains the detailed project summaries for each of the 84 in situ flushing projects currently contained in the GWRTAC database, as well as GWRTAC’s source(s) of information for the database, and also other external references, such as journal articles, pertaining to the project. It should be noted that the length and amount of detail in the project summaries varies greatly, depending upon whether published papers are available on the project, and/or the source material used by GWRTAC. For most enforcement sites, GWRTAC has not obtained copies of multiple documents submitted to regulatory agencies to gain a full and detailed picture of the project, but rather has relied upon telephone interviews with project managers to construct project summaries. For research sites where published papers or reports are readily available to summarize the in situ flushing project, executive summaries or project summaries were often provided to GWRTAC electronically for direct incorporation into the database. In still other cases, information found in the project summaries was provided by abstracts. Ground-Water Remediation Technologies Analysis Center © GWRTAC Operated by Concurrent Technologies Corporation Page 1 Revision 1 11/17/98
Page 1 and 2: Technology Status Report Technology
Page 3 and 4: ABSTRACT This technology status rep
Page 5: LIST OF TABLES Table Title Page 1 I
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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In Situ Flushing Project Summaries
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Technology Status Report: In Situ Flushing - CLU-IN

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