Water that contains significant amounts of dissolved solids.

  • Fresh water: less than 1,000 parts per million (ppm)
  • Slightly saline water: from 1,000 ppm to 3,000 ppm
  • Moderately saline water: from 3,000 ppm to 10,000 ppm
  • Highly saline water: from 10,000 ppm to 35,000 ppm

See also Brine, Brackish Water.