Section 404 of the Clean Water Act

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.

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Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Alabama (PDF)(1 pg, 193 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Arizona (PDF)(1 pg, 143 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Arkansas (PDF)(1 pg, 112 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in California (PDF)(1 pg, 103 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Colorado (PDF)(1 pg, 156 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Connecticut (PDF)(1 pg, 62 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Delaware (PDF)(1 pg, 131 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Florida (PDF)(1 pg, 212 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Georgia (PDF)(1 pg, 155 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Idaho (PDF)(1 pg, 185 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Illinois (PDF)(1 pg, 108 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Indiana (PDF)(1 pg, 170 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Iowa (PDF)(1 pg, 95 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Kansas (PDF)(1 pg, 90 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Kentucky (PDF)(1 pg, 213 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Louisiana (PDF)(1 pg, 136 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Maine (PDF)(1 pg, 176 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Maryland (PDF)(1 pg, 102 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Massachusetts (PDF)(1 pg, 150 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Michigan (PDF)(1 pg, 190 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Minnesota (PDF)(1 pg, 122 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Mississippi (PDF)(1 pg, 132 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Missouri (PDF)(1 pg, 192 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Montana (PDF)(1 pg, 106 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Nebraska (PDF)(1 pg, 160 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Nevada (PDF)(1 pg, 157 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in New Hampshire (PDF)(1 pg, 149 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in New Jersey (PDF)(1 pg, 216 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in New Mexico (PDF)(1 pg, 167 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in New York (PDF)(1 pg, 124 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in North Carolina (PDF)(1 pg, 192 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in North Dakota (PDF)(1 pg, 79 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Ohio (PDF)(1 pg, 88 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Oklahoma (PDF)(1 pg, 157 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Oregon (PDF)(1 pg, 146 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Pennsylvania (PDF)(1 pg, 96 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Rhode Island (PDF)(1 pg, 144 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in South Carolina (PDF)(1 pg, 181 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in South Dakota (PDF)(1 pg, 86 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Tennessee (PDF)(1 pg, 138 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Texas (PDF)(1 pg, 311 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Utah (PDF)(1 pg, 146 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Vermont (PDF)(1 pg, 149 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Virginia (PDF)(1 pg, 155 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Washington (PDF)(1 pg, 170 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in West Virginia (PDF)(1 pg, 120 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Wisconsin (PDF)(1 pg, 96 K)
Percentage of Surface Drinking Water from Intermittent, Ephemeral or Headwater Streams in Wyoming (PDF)(1 pg, 78 K)