| ACROSS | DOWN |
| 2 Land settling from removal of groundwater | 1 Dredging, straightening and lining a stream with concrete |
| 4 Removal of salt from water | 3 In ____ irrigation, water is delivered right to the base of each plant |
| 6 When withdrawal is larger than recharge, the result is a _______ water table | 5 The aquifer that supplies Great Plains agriculture, for now |
| 9 An association dedicated to protecting and preserving rivers | 7 High levels of runoff following rains where the ground is rendered impermeable |
| 11 Reduced by shrinking groundwater, especially in wetlands | 8 Landscaping using desert species |
| 13 Groundwater that formed ages ago that does not recharge | 10 Microprocessor controlled irrigation that reduces water use by 50% |
| 15 Water collected from showering or sinks and reused in sprinklers or toilets | 12 Reduced flow of aquifers emptying into the ocean results in saltwater _________ |
| 16 Stormwater _________ reservoirs store are artificial ponds that hold and trickle out stormwater | 14 Areas valuable for storing storm water and maintaining flow in droughts |
| 17 An activity restricted by the Wild and Scenic Rivers Act of 1968 | |
| 18 Land settling in a sudden, dramatic collapse |