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Iowa Geological
and Water Survey

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Iowa City, IA 52242
Phone (319) 335-1575
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Water Quality Assessments

Water Quality Reporting
  • Iowa's 303(d) listing of impaired waters
  • Iowa's 305(b) water quality report
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    Water Quality Assessments

  • Determining Water Quality
  • Biological Assessment of Iowa Streams
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  • Fish Kills

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