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Final September 2002 On-Post Quarterly Groundwater Monitoring Report, December 2002
Table of Contents
Groundwater monitoring scoped under the Air Force Center for Environmental Excellence (AFCEE) 3P/AE Contract 41624-00-D-8024, Task Order (TO) 0042, was performed the week of September 9, 2002, at Camp Stanley Storage Activity (CSSA). On-post groundwater monitoring conducted under this TO began at the March 2002 sampling event and will continue through the March 2003 sampling event. Groundwater monitoring conducted prior to March 2002 was conducted under Delivery Order (DO) 67, 23, RL74, DO5084, and RL83. AFCEE/Environmental Restoration Directorate (ERD) and AFCEE/Environmental Restoration Consultant (ERC) provide technical oversight of the monitoring program.
The current objectives of the groundwater-monitoring program are to determine groundwater flow direction and elevations, determine groundwater contaminant concentrations for characterization purposes, and identify seasonal variations in physical and chemical properties. Appendix A identifies the data quality objectives (DQOs) for CSSA�s groundwater monitoring program, along with an evaluation of whether each DQO has been attained. The objectives listed in the table also reference appropriate sections of the 3008(h) Administrative Order on Consent (Order). Overall DQOs for the investigations at CSSA are provided in Volume 1-1 behind the RFI Addendum tab (Section 11).
1.0 - Water Level Measurements
2.0 - Basewide Flow Direction and Gradient
3.0 - Well CS-MW16-LGR Water Level and Transducer Data
4.0 - September 2002 Analytical Results
4.1 Volatile Organic Compound Analyses
4.3 Natural Attenuation Parameters
Appendices
Appendix A - Evaluation of Data Quality Objectives Attainment
Appendix B - September 2002 Quarterly On-Post Groundwater Monitoring Analytical Results
Appendix C-1 - Results of Natural Attenuation Study
Appendix C-2 - Results of Natural Attenuation Study
Tables
Table 1-1 - CSSA Summary of Groundwater Elevations, September 2002
Table 1-2 - Comparison of Groundwater Elevations from June 2002 to September 2002
Table 4-1 - September 2002 Quarterly Groundwater Detected Concentrations
Table 4-2 - Groundwater Natural Attenuation Parameters
Figures
Figure 2-1 - September 2002 Potentiometric Surface Map
Figure 2-2 - September 2002 Potentiometric Surface Map for the LGR Screened Wells Near Building 90
Figure 2-3 - September 2002 Potentiometric Surface Map for the CC Screened Wells near Building 90
Figure 2-4 - Groundwater Elevations for Wells CS-MW6-LGR/BS/CC
Figure 2-5 - Groundwater Elevations for Wells CS-MW7-LGR/CC
Figure 2-6 - Groundwater Elevations for Wells CS-MW8-LGR/CC
Figure 2-7 - Groundwater Elevations for Wells CS-MW10-LGR/CC
Figure 2-8 - Comparison of AOC 65 Potentiometric Surface Maps from July to September 2002
Figure 3-1 - Well CS-MW16-LGR GW Elevation and Precipitation Data
Figure 3-3 - Well CS-MW9 Cluster Groundwater Elevation and Precipitation Data
Figure 4-1 - Well CS-MW16-LGR PCE and TCE Concentrations since 1991
Figure 4-2 - Well CS-MW16-LGR Concentrations for Selected Analytes since 1998
Figure 4-3 - Well CS-D PCE and TCE Concentrations since 1991
Figure 4-4 - Well CS-D Concentrations for Selected Analytes since 2000
Figure 4-5 - Well CS-MW1-LGR PCE and TCE Concentrations since 1998
Figure 4-6 - Well CS-MW2-LGR PCE and TCE Concentrations since 1998
Figure 5-1 - Concentrations of Tetrachloroethene in Selected Wells
Figure 5-2 - Concentrations of Trichloroethene in Selected Wells
Figure 5-3 - Concentrations of cis-1,2-Dichloroethene in Selected Wells