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54. National Rivers Inventory: Iowa, United States

Iowa Department of Transportation. The Nationwide Rivers Inventory (NRI) is a listing of more than 3,400 free-flowing river segments in the United States that are believed to possess...
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55. Potential Flood Scour Areas: Iowa

2018. Using a newly developed method that takes advantage of one-dimensional HEC-RAS hydraulic data, scour potential data were created for the 100 year (...
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56. Private Well Facilities: Iowa

2018. Iowa Department of Natural Resources. Point locations of wells entered into the Iowa DNR Private Well Tracking System. Includes private well permits, well test registration, abandoned ...
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57. Public Water Supply Surface Water Intakes: Iowa

2018. Iowa Department of Natural Resources. Surface water intakes (and infiltration galleries) at facilities with operating permits for Public Water Supplies (systems that serve 25 or more pe...
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62. Water Treatment Plant Facilities: Iowa

2018. Iowa Department of Natural Resources. Water treatment plants at facilities with operating permits for Public Water Supplies (systems that serve 25 or more people) for drinking water. Th...
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63. Water Use Surface Water Intakes: Iowa

2018. Iowa Department of Natural Resources. Surface water intakes (including from reservoirs or streams) under Water Use permits. A water use permit is required of any person or entity that w...
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64. Water Use Wells: Iowa

2018. Iowa Department of Natural Resources. Wells under Water Use permits. A water use permit is required of any person or entity that withdraws or diverts at least 25,000 gallons of water in...
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65. Designated Wetlands: Iowa

2017. Iowa Department of Natural Resources. Designated Wetlands This zip file contains a shapefile of the designated wetlands and their setback requirements.
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67. Drainage Districts Data: Iowa

2017. Iowa Department of Natural Resources. Drainage Districts in Iowa This zip file contains a file geodatabase of drainage districts and their infrastructure.
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68. Major Water Sources: Iowa

2017. Iowa Department of Natural Resources. Major Water Sources in Iowa This zipfile contains two shapefiles, one for lakes, and one for rivers.
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69. National Flood Hazard Layer: Iowa

2017. Iowa Department of Natural Resources. Flood Risk Areas This is the Regulatory dataset Produced by FEMA.The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate ...
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71. Outstanding Iowa Waters

2017. Iowa Department of Natural Resources. Outstanding Iowa Waters This zip file contains a shapefile of Outstanding Iowa Waters.
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72. Protected Streams: Iowa

2017. Iowa Department of Natural Resources. Streams Protected from Channel Changes in Iowa This zip file contains a shapefile of Protected Streams.
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73. Protected Water Areas: Iowa

2017. Iowa Department of Natural Resources. Iowa Protected Water Area This zip file contains a shapefile of Protected Water Areas.
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74. Sovereign Meantered Rivers: Iowa

2017. Iowa Department of Natural Resources. Sovereign Meandered Rivers of Iowa This zip file contains a shapefile of the listed Sovereign Meandered Rivers of Iowa.
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75. Stream Centerlines: Iowa

2017. Iowa Department of Natural Resources. Stream Centerlines in Iowa File Geodatabase.
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76. Surface Water Classification: Iowa

2017. Iowa Department of Natural Resources. Stream Use Assessment and Attainability This zip file contains a file geodatabase with streams segments and their classifications.
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77. Trout Streams: Iowa

2017. Iowa Department of Natural Resources. Trout Streams of Iowa Zip file contains a shapefile.
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78. Floodplains: Iowa

Iowa Department of Transportation. This map shows known or potential environmental resources within the I-80 PEL Study Area. Resources include streams, wetlands, convservation lands...
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79. Impaired Waters: Iowa, 2016

2016. Iowa Department of Natural Resources. Impaired Waters of Iowa This zip file contains shapefiles for the stream and lake segments.
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80. Streams: Iowa

Iowa Department of Transportation. This map shows known or potential environmental resources within the I-80 PEL Study Area. Resources include streams, wetlands, convservation lands...