Potable Water

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Across
  1. 2. If there is no groundwater, water may come from the ___
  2. 3. Water that does not contain any other elements than hydrogen and oxygen
  3. 4. The process used to separate insoluble solids from liquids
  4. 6. The process which kills microbes during potable water production
Down
  1. 1. A process which can make seawater safe to drink, involving evaporation and condensation
  2. 3. Water that is safe to drink, but may not be pure
  3. 5. One way to produce potable water is reverse _______