1. 15-1 Environmental Geology James Reichard Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

2. 15-2 Chapter 15 Pollution and Waste Disposal

3. 15-3 Waste Disposal Historical waste disposal Historical waste disposal US Environmental Laws US Environmental Laws NEPA National Environmental Policy Act 1969 NEPA National Environmental Policy Act 1969 Clean Air Act 1970 Clean Air Act 1970 Clean Water Act 1972 Clean Water Act 1972 CERCLA Comprehensive Environmental Response, Compensation &Liability Act 1980 CERCLA Comprehensive Environmental Response, Compensation &Liability Act 1980 RCRA Resource Conservation & Recovery Act 1976 RCRA Resource Conservation & Recovery Act 1976

4. 15-4 Pollution & Contamination Polluted Polluted Introduced substance reaches harmful concentrations Introduced substance reaches harmful concentrations Contaminated Contaminated Substance above natural levels Substance above natural levels

5. 15-5 Maximum Contaminant Levels (MCL)

6. 15-6 Movement of Pollutants Point source Point source Non point source Non point source

7. 15-7 Point Source & Non Point Source

8. 15-8 Contaminant Plume

9. 15-9 Solid Waste Municipal solid waste Municipal solid waste Solid waste stream Solid waste stream

10. 15-10 Solid Waste Stream Sanitary landfill Sanitary landfill leachate leachate Containment landfill Containment landfill

11. 15-11 Waste Management

12. 15-12 Solid Hazardous Waste Secured landfills Secured landfills Hazardous waste incinerators Hazardous waste incinerators Electronic waste Electronic waste Dry cell batteries Dry cell batteries Wet cell batteries Wet cell batteries Tires Tires

13. 15-13 Liquid Waste Disposal Wastewater Wastewater Sewage Sewage Liquid hazardous waste Liquid hazardous waste Secured landfill Secured landfill Deep well injection Deep well injection

14. 15-14 Deep Well Injection

15. 15-15 Wastewater Human waste Human waste Septic systems Septic systems Municipal wastewater treatment Municipal wastewater treatment

16. 15-16 Municipal Wastewater Treatment

17. 15-17 Agricultural & Urban Actions Agricultural chemicals Agricultural chemicals Animal waste Animal waste Sediment pollution Sediment pollution

18. 15-18 Radioactive Waste Disposal Radiation hazards Radiation hazards Disposal problems Disposal problems High level waste High level waste Low level waste Low level waste

19. 15-19 Air Pollution and Fallout Acid rain Acid rain Mercury fallout Mercury fallout Radon Radon