9. View Maps and Figures

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• Figure 1. Locations where groundwater samples were collected from tubewells.
• Figure 2. Map of the average arsenic concentration (mg/L) in water from tubewells less than 30.5 m or 100 feet bgs (· = village location).
• Figure 3. Map of the average arsenic concentration (mg/L) in water from tubewells greater than 30.5 m (100 feet) bgs.
• Figure 4. Graph of arsenic concentration (mg/L) versus tubewell depth (meters below ground surface, bgs).
• Figure 5. The vertical distribution of arsenic in groundwater based on adjacent pairs (< 100 m or < 328 feet apart) of "very deep" (67.1 to 290 m bgs or 220 to 950 feet bgs) and shallow (< 30.5 m or < 100 feet bgs) tubewells. The depth of each "very deep" tubewell in meters is shown next to the corresponding data point.
• Figure 6. Map of the average chloride concentration (mg/L) in water from tubewells less than 30.5 m (100 feet) bgs.
• Figure 7. Map of the average phosphate concentration (mg/L) in water from tubewells less than 30.5 m (100 feet) bgs.
• Figure 8. Map of the average sulfide concentration (mg/L) in water from tubewells less than 30.5 m (100 feet) bgs.
• Figure 9. Map of the average sulfate concentration (mg/L) in water from tubewells less than 30.5 m (100 feet) bgs.
• Figure 10. Map of the average total iron concentration (mg/L) in water from tubewells less than 30.5 m (100 feet) bgs.
• Figure 11. The concentration of arsenic (mg/L) leached into 200 mL of distilled water from 100 grams of surface soil after 24 hours.
• Figure 12. The concentration of arsenic (mg/L) leached into 200 mL of distilled water from 100 grams of surface soil after 6 days.
• Figure 13. Map of the minimum arsenic concentration (mg/L) in water from all tubewells regardless of depth.
• Figure 14. Graph of arsenic concentration (mg/L) versus oxidation-reduction potential in water from all tubewells regardless of depth.
• Figure 15. Graph of arsenic concentration (mg/L) versus pH in water from all tubewells regardless of depth.

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• Contact Seth H. Frisbie, Ph.D.
(shf3@cornell.edu) by e-mail.