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Technical Memorandum on Surface Geophysical Surveys, Well 16 Source Characterization - June 1995

Table of Contents

Section 1 - Introduction

1.1   Background

1.2   Geophysical Survey Methods

1.2.1   Electromagnetic Survey

1.2.2   Ground Penetrating Radar Survey

1.3   Report Organization

Section 2 - SWMU B-1

2.1   Site History and Description

2.2   Geophysical Survey Results

Section 3 - SWMU B-2

3.1   Site History and Description

3.2   Geophysical Survey Results

Section 4 - SWMU B-3

4.1   Site History and Description

4.2   Geophysical Survey Results

Section 5 - SWMU B-4

5.1   Site History and Description

5.2   Geophysical Survey Results

Section 6 - SWMU O-1 (Oxidation Pond)

6.1   Site History and Description

6.2   Geophysical Survey Results

Section 7 - SWMU B-19

7.1   Site History and Description

7.2   Geophysical Survey Results

Section 8 - SWMU B-28

8.1   Site History and Description

8.2   Geophysical Survey Results

Section 9 - Well 16

9.1   Site History and Description

9.2   Geophysical Survey Results

Section 10 - Southeast Well 16

10.1   Site History and Description

10.2   Geophysical Survey Results

Section 11 - Open Areas

11.1   North Pasture

11.1.1   Site History and Description

11.1.2   Geophysical Survey Results

11.2   South Pasture

11.2.1   Site History and Description

11.2.2   Geophysical Survey Results

11.3   Well 16 West

11.3.1   Site History and Description

11.3.2   Geophysical Survey Results

11.4   Well 16 East

11.4.1   Site History and Description

11.4.2   Geophysical Survey Results

11.5   Gate 6

11.5.1   Site History and Description

11.5.2   Geophysical Survey Results

11.6   Salado Creek

11.6.1   Site History and Description

11.6.2   Geophysical Survey Results

Section 12 - Conclusions

12.1   Summary of Geophysical Results

12.2   Further Work

Figures

Figure 1.1   Site Map

Figure 1.2   Geophysical Survey Location Map

Figure 2.1   SWMU B-1 Site Map

Figure 2.2   EM Conductivity Data, SWMU B-1

Figure 2.3   EM In-Phase Data, SWMU B-1

Figure 3.1   SWMU B-2 Site Map

Figure 3.2   EM Conductivity Data, SWMU B-2

Figure 3.3   EM In-Phase Data, SWMU B-2

Figure 3.4   Anomaly Location Map, SWMU B-2

Figure 3.5   GSSI SIR-3 GPR Profile, SWMU B-2

Figure 3.6   Comparison of EM and GPR Profiles, SWMU B-2

Figure 4.1   SWMU B-3 Site Map

Figure 4.2   EM Conductivity Data, SWMU B-3

Figure 4.3   EM In-Phase Data, SWMU B-3

Figure 4.4   Pulse EKKO IV GPR Profile, SWMU B-3

Figure 4.5   Anomaly Location Map, SWMU B-3

Figure 5.1   SWMU B-4 and B-4A Site Map

Figure 5.2   EM Conductivity Data, SWMU B-4 and B-4A

Figure 5.3   EM In-Phase Data, SWMU B-4 and B-4A

Figure 5.4   Anomaly Location Map, SWMU B-4 and B-4A

Figure 5.5   GSSI SIR-3 GPR Profile, SWMU B-4

Figure 5.6   Pulse EKKO IV GPR Profile, SWMU B-4

Figure 6.1   SWMU O-1 (Oxidation Pond) Site Map

Figure 6.2   EM Conductivity Data, SWMU O-1 (Oxidation Pond)

Figure 6.3   EM In-Phase Data, SWMU O-1 (Oxidation Pond)

Figure 6.4   GSSI SIR-3 GPR Profile, SWMU O-1 (Oxidation Pond)

Figure 6.5   Pulse EKKO IV GPR Profile, SWMU O-1 (Oxidation Pond)

Figure 6.6   Anomaly Location Map, SWMU O-1 (Oxidation Pond)

Figure 7.1   SWMU B-19 Site Map

Figure 7.2   EM Conductivity Data, SWMU B-19

Figure 7.3   EM In-Phase Data, SWMU B-19

Figure 8.1   SWMU B-28 Site Map

Figure 8.2   EM Conductivity Data (N-S), SWMU B-28

Figure 8.3   EM In-Phase Data (N-S), SWMU B-28

Figure 8.4   EM Conductivity Data (E-W), SWMU B-28

Figure 8.5   EM In-Phase Data (E-W), SWMU B-28

Figure 8.6   GSSI SIR-3 GPR Profile, SWMU B-28

Figure 8.7   Anomaly Location Map, SWMU B-28

Figure 9.1   Well 16 Site Map

Figure 9.2   EM Conductivity Data, Well 16

Figure 9.3   EM In-Phase Data, Well 16

Figure 10.1   Southeast Well 16 Site Map

Figure 10.2   EM Conductivity Data, Southeast Well 16

Figure 10.3   EM In-Phase Data, Southeast Well 16

Figure 11.1   North Pasture Site Map

Figure 11.2   EM Conductivity Data (N-S), North Pasture

Figure 11.3   EM In-Phase Data (N-S), North Pasture

Figure 11.4   EM Conductivity Data (E-W), North Pasture

Figure 11.5   EM In-Phase Data (E-W), North Pasture

Figure 11.6   South Pasture Site Map

Figure 11.7   EM Conductivity Data (N-S), South Pasture

Figure 11.8   EM In-Phase Data (N-S), South Pasture

Figure 11.9   EM Conductivity Data (E-W), South Pasture

Figure 11.10   EM In-Phase Data (E-W), South Pasture

Figure 11.11  Anomaly Location Map, South Pasture

Figure 11.12   South Pasture EM QC Line (E-W)

Figure 11.13   Well 16 West Site Map

Figure 11.14   EM Conductivity Data (N-S), Well 16 West

Figure 11.15   EM In-Phase Data (N-S), Well 16 West

Figure 11.16   EM Conductivity Data (E-W), Well 16 West

Figure 11.17   EM In-Phase Data (E-W), Well 16 West

Figure 11.18   Anomaly Location Map, Well 16 West

Figure 11.19   Well 16 East Site Map

Figure 11.20   EM Conductivity Data (N-S), Well 16 East

Figure 11.21   EM In-Phase Data (N-S), Well 16 East

Figure 11.22   EM Conductivity Data (E-W), Well 16 East

Figure 11.23   EM In-Phase Data (E-W), Well 16 East

Figure 11.24   Anomaly Location Map, Well 16 East

Figure 11.25   Gate 6 Site Map

Figure 11.26   EM Conductivity Data (N-S), Gate 6

Figure 11.27   EM In-Phase Data (N-S), Gate 6

Figure 11.28   EM Conductivity Data (E-W), Gate 6

Figure 11.29   EM In-Phase Data (E-W), Gate 6

Figure 11.30   Anomaly Location Map, Gate 6

Figure 11.31   Salado Creek Site Map

Figure 11.32   EM Conductivity Data (N-S), Salado Creek

Figure 11.33   EM In-Phase Data (N-S), Salado Creek

Figure 11.34   EM Conductivity Data (E-W), Salado Creek

Figure 11.35   EM In-Phase Data (E-W), Salado Creek

Figure 11.36   Anomaly Location Map, Salado Creek

Tables

Table 12.1   Geophysical Anomalies