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Managing Groundwater Quality: Impacts, Prevention, and Remediation

Explore the interaction of saltwater and freshwater, formation of sinkholes, and causes of groundwater pollution. Discover effective strategies for preventing saltwater intrusion and managing contaminants. Learn about extraction wells for contaminant removal.

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Managing Groundwater Quality: Impacts, Prevention, and Remediation

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Presentation Transcript

  1. Extra figures from lecture on groundwater, karsts, and pollutionMonday, 4/2/07

  2. Interaction of Salt Water with Ground Water The normal situation (USGS figure) 8-34

  3. Now, what happens when fresh water is withdrawn? Therefore, maintaining a high (fresh) water table in coastal areas prevents saltwater intrusion 8-37

  4. The Virtual Cave Website Sinkholes: form when roof of the cavern can no longer support weight of overlying soil Formation of Limestone Caves & Sinkholes 8-44

  5. 0 Causes of Groundwater Pollution 8-50

  6. 0 Escape of Landfill Leachate in Lancaster, PA 8-51

  7. 0 Movement of Immiscible Contaminants 8-53

  8. 0 Dispersion of Soluble Contaminant to form a Plume 8-55

  9. 0 Extraction Wells for Contaminant Withdrawal 8-57

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