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Across 2. fan shaped deposits of alluvium that form on dry land 6. a fan shaped deposits of alluvium at the mouth of a stream 7. the path a stream flows 8. rocka nd soil deposited in streams 9. water that is located within rocks below the earth's surface 10. large, underground tank that collects and cleans waste water from a household 11. amount of open space between individual rock particles 12. an area of higher ground that separates drainage basins 14. pollution that comes from one particular source area 15. continuous movement of water 17. smaller stream or river that flows into a larger one 18. the removal and transport of material by wind, water, or ice 20. he largest drainage basin in the United States 21. a rock's ability to let water pass through it 22. the land drained by a river system, which includes the main river and all its tributaries 23. a factory that cleans waste materials out of water that comes from sewers and drains

Down 1. a rock layer that stores and allows the flow of ground water 3. pollution that comes from many sources 4. the ground surface where water enters an aquifer 5. an underground boundary where the zone of aeration and saturation meet 8. a spring that forms where cracks occur naturally in the cap rock and the water flows through 12. the process by which material is dropped or settles 13. the materials carried in a stream's water 16. an area along a river formed from sediments deposited by rivers 19. the feature that is common in youthful river channels