This document contains definitions for various terms related to water resources and water pollution including: aquifers, chlorinated hydrocarbons, inorganic fertilizers, desalination, dissolved oxygen, eutrophication, evaporation, floodplains, groundwater, natural capital, natural recharge, nondegradable pollutants, oxygen demanding wastes, point sources, primary and secondary sewage treatment, recharge areas, reliable runoff, salinity, saltwater intrusion, sedimentary rocks, septic tanks, sludge, surface runoff, water pollution, water tables, zones of aeration and saturation, and zoning regulations.

1. Water resources

2. Aquifer

3. Chlorinated hydrocarbon

4. Inorganic Fertilizer

5. Desalination

6. Dissolved Oxygen

7. Euphotic Zone Photosynthesis producing most oxygen

8. Eutrophication Increased Nitrates, Phosphates (naturally or culturally) from external sources

9. Evaporation

10. Floodplain

11. Groundwater

12. Natural Capital Water, trees, grassland, soil, etc…notice the change in allocated natural capital for wildlife versus humans

18. Primary and Secondary Sewage Treatment Large solids are filtered out Primary 90% of leftover waste is digested by aerobic bacteria secondary

21. Salinity

22. Saltwater Intrusion Using freshwater faster than it can be recharged so saltwater intrudes

23. Sedimentary Rock

24. Septic Tank Aerobic bacteria decompose waste and sludge settles. Effluent flows out into ground

25. Sludge Leftover, toxic chemicals, infectious agents, and settled solids removed from waste water

26. Surface Runoff

27. Water Pollution Chemical or physical influences which may be harmful to living organisms

28. Water Table Zone of Aeration Zone of saturation