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Section 404 of the Clean Water Act
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Surface Drinking Water Provided by Intermittent, Ephemeral, and Headwater Streams: State Maps

A collection of state maps detailing the percentage of surface drinking water from intermittent, ephemeral or headwater streams for each county.

  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Alabama (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Arizona (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Arkansas (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in California (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Colorado (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Connecticut (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Delaware (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Florida (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Georgia (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Idaho (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Illinois (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Indiana (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Iowa (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Kansas (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Kentucky (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Louisiana (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Maine (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Maryland (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Massachusetts (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Michigan (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Minnesota (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Mississippi (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Missouri (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Montana (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Nebraska (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Nevada (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in New Hampshire (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in New Jersey (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in New Mexico (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in New York (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in North Carolina (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in North Dakota (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Ohio (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Oklahoma (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Oregon (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Pennsylvania (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Rhode Island (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in South Carolina (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in South Dakota (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Tennessee (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Texas (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Utah (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Vermont (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Virginia (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Washington (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in West Virginia (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Wisconsin (pdf)
  • Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Wyoming (pdf)
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Last updated on October 12, 2021