Natural Resources GIS Library Coverages

 

all_swp_surfacewater Surface-Water-Sourced Public Water Supply Capture Zones

 

all_wells All Registered Wells in the State of Iowa

 

beach_monitoring_sites Lake Beach Monitoring Locations in Iowa

 

beach_monitoring_sites_status Current Monitoring Status for Lake Beaches in Iowa

 

Camb_Ord_static_water_level_1990s Potentiometric Surface of the Cambrian/Ordovician Aquifer during the 1990s

 

Camb_Ord_static_water_level_2000s Potentiometric Surface of the Cambrian/Ordovician Aquifer During the 2000s

 

camb_ord_water_level_1990 Cambrian/Ordovician Aquifer Water Levels in the 1990s

 

camb_ord_water_level_2000 Cambrian/Ordovician Water Levels During the 2000s

 

channelized_streams Channelized Streams in Iowa

 

CO_200ftdd The Elevation of the 200 Foot Drawdown Limit from the 1977 Potentiometric Elevation of the Cambrian-Ordovician Aquifer in Iowa

 

CO_25percent Elevation of 25 Percent of the Original Available Pressure Head in the Cambrian-Ordovician Aquifer in Iowa

 

CO_50percent Elevation of 50 Percent of the Original Available Pressure Head in the Cambrian-Ordovician Aquifer in Iowa

 

co_btm Elevation of the Bottom of the Cambrian-Ordovician Aquifer in Iowa

 

co_hycond Hydraulic Conductivity of the Cambrian-Ordovician Aquifer in Iowa

 

co_isopach Thickness of the Cambrian-Ordovician (Jordan) Aquifer in Iowa

 

CO_model_extent Cambrian-Ordovician Aquifer Model Extent

 

CO_pot_1977 The 1977 Potentiometric Elevation of the Cambrian-Ordovician Aquifer in Iowa

 

CO_predev_pot Pre-development Potentiometric Elevation of the Cambrian-Ordovician Aquifer in Iowa

 

CO_recharge Net Recharge into the Cambrian-Ordovician aquifer in Iowa

 

co_spstorage Specific Storage of the Cambrian-Ordocian Aquifer in Iowa

 

co_top Elevation of the Top of the Cambrian-Ordovician Aquifer in Iowa

 

co_trans Transmissivity of the Cambrian-Ordovician Aquifer in Iowa

 

CO_well_yield Potential Well Yields from the Cambrian-Ordovician Aquifer in Iowa

 

cold_water_streams Cold Water Streams Supporting Trout Habitat in Iowa

 

dak_alpha Distribution of gross alpha particles in water from the Dakota aquifer in Northwest Iowa

 

dak_beta Distribution of gross beta particles in water from the Dakota aquifer in Northwest Iowa

 

dak_bicarb Distribution of dissolved bicarbonate in water from the Dakota aquifer in Northwest Iowa

 

dak_bot_depth Depth to the Bottom of the lower Dakota Aquifer in Northwest Iowa

 

dak_bot_elev Elevation of the Bottom of the lower Dakota Aquifer in Northwest Iowa

 

dak_calcium Distribution of dissolved calcium in water from the Dakota aquifer in Northwest Iowa

 

dak_chloride Distribution of dissolved chloride in water from the Dakota aquifer in Northwest Iowa

 

dak_drawdn50 Fifty Percent (50%) of Potential Drawdown of the lower Dakota Aquifer in Northwest Iowa

 

dak_drawdown Potential Drawdown of the lower Dakota Aquifer in Northwest Iowa

 

dak_fluoride Distribution of dissolved fluoride in water from the Dakota aquifer in Northwest

 

dak_hardness Distribution of dissolved hardness as CaCO3 in water from the Dakota aquifer in Northwest Iowa

 

dak_iron Distribution of dissolved iron in water from the Dakota aquifer in Northwest Iowa

 

dak_isopach Thickness of the lower Dakota Aquifer in Northwest Iow

 

dak_magnesium Distribution of dissolved magnesium in water from the Dakota aquifer in Northwest Iowa

 

dak_manganese Distribution of dissolved manganese in water from the Dakota aquifer in Northwest Iowa

 

dak_pot_surf Potentiometric Surface and Occurrence of the lower Dakota Aquifer in Northwest Iowa

 

dak_radium226 Distribution of radium-226 in water from the Dakota aquifer in Northwest Iowa

 

dak_radium228 Distribution of radium-228 in water from the Dakota aquifer in Northwest Iowa

 

dak_radon222 Distribution of radon-222 in water from the Dakota aquifer in Northwest Iowa

 

dak_sodium Distribution of dissolved sodium in water from the Dakota aquifer in Northwest Iowa

 

dak_spec_cap Specific Capacity of the lower Dakota Aquifer in Northwest Iowa in gpm/ft

 

dak_sulfate Distribution of dissolved sulfate in water from the Dakota aquifer in Northwest Iowa

 

dak_tds Distribution of total dissolved solids in water from the Dakota aquifer in Northwest Iowa

 

dak_tdswq Water Quality based on total dissolved solids in water from the Dakota aquifer in Northwest Iowa

 

dak_temp Distribution of temperature in degrees Celsius of water from the Dakota aquifer in Northwest Iowa

 

dak_top_depth Depth to the top of the lower Dakota Aquifer in Northwest Iowa

 

dak_top_elev Elevation of the top of the lower Dakota Aquifer in Northwest Iowa

 

dak_trans_ft Transmissivity of the lower Dakota Aquifer in Northwest Iowa in square feet/day

 

dak_trans_gpd Transmissivity of the lower Dakota Aquifer in Northwest Iowa in gpd/ft

 

dak_tritium Distribution of tritium in water from the Dakota aquifer in Northwest Iowa

 

dakota_alpha_contours Distribution of gross alpha particles in water from the Dakota aquifer in Northwest Iowa

 

dakota_alpha_points Distribution of gross alpha particles in water from the Dakota aquifer in Northwest Iowa

 

dakota_beta_contours Distribution of gross beta particles in water from the Dakota aquifer in Northwest Iowa

 

dakota_beta_points Distribution of gross beta particles in water from the Dakota aquifer in Northwest Iowa

 

dakota_bicarbonate_contours Distribution of dissolved bicarbonate in water from the Dakota aquifer in Northwest Iowa

 

dakota_bicarbonate_points Distribution of dissolved bicarbonate in water from the Dakota aquifer in Northwest Iowa

 

dakota_bottom_elev_contours Elevation of the Bottom of the lower Dakota Aquifer in Northwest Iowa

 

dakota_calcium_contours Distribution of dissolved calcium in water from the Dakota aquifer in Northwest Iowa

 

dakota_calcium_points Distribution of dissolved calcium in water from the Dakota aquifer in Northwest Iowa

 

dakota_chloride_contours Distribution of dissolved chloride in water from the Dakota aquifer in Northwest Iowa

 

dakota_chloride_points Distribution of dissolved chloride in water from the Dakota aquifer in Northwest Iowa

 

dakota_drawdown_contours Potential Drawdown of the lower Dakota Aquifer in Northwest Iowa

 

dakota_drawdown50_contours Fifty Percent (50%) of Potential Drawdown of the lower Dakota Aquifer in Northwest Iowa

 

dakota_fluoride_contours Distribution of dissolved fluoride in water from the Dakota aquifer in Northwest Iowa

 

dakota_fluoride_points Distribution of dissolved fluoride in water from the Dakota aquifer in Northwest Iowa

 

dakota_h2o_quality_wells Locations of Water-Quality Sampling Sites of Water from the Dakota Aquifer in Northwest Iowa

 

dakota_hardness_contours Distribution of dissolved hardness as CaCO3 in water from the Dakota aquifer in Northwest Iowa

 

dakota_hardness_points Distribution of dissolved hardness as CaCO3 in water from the Dakota aquifer in Northwest Iowa

 

dakota_hydro_wells Locations of Hydrogeologic Sampling Sites of Water and Rock from the lower Dakota Aquifer in Northwest Iowa

 

dakota_iron_contours Distribution of dissolved iron in water from the Dakota aquifer in Northwest Iowa

 

dakota_iron_points Distribution of dissolved iron in water from the Dakota aquifer in Northwest Iowa

 

dakota_isopach_contours Thickness of the lower Dakota Aquifer in Northwest Iowa

 

dakota_magnesium_contours Distribution of dissolved magnesium in water from the Dakota aquifer in Northwest Iowa

 

dakota_magnesium_points Distribution of dissolved magnesium in water from the Dakota aquifer in Northwest Iowa

 

dakota_manganese_contours Distribution of dissolved manganese in water from the Dakota aquifer in Northwest Iowa

 

dakota_manganese_points Distribution of dissolved manganese in water from the Dakota aquifer in Northwest Iowa

 

dakota_potentio_contours Potentiometric Surface and Occurrence of the lower Dakota Aquifer in Northwest Iowa

 

dakota_radium226_contours Distribution of radium-226 in water from the Dakota aquifer in Northwest Iowa

 

dakota_radium226_points Distribution of radium-226 in water from the Dakota aquifer in Northwest Iowa

 

dakota_radium228_contours Distribution of radium-228 in water from the Dakota aquifer in Northwest Iowa

 

dakota_radium228_points Distribution of radium-228 in water from the Dakota aquifer in Northwest Iowa

 

dakota_radon222_contours Distribution of radon-222 in water from the Dakota aquifer in Northwest Iowa

 

dakota_radon222_points Distribution of radon-222 in water from the Dakota aquifer in Northwest Iowa

 

dakota_sodium_contours Distribution of dissolved sodium in water from the Dakota aquifer in Northwest Iowa

 

dakota_sodium_points Distribution of dissolved sodium in water from the Dakota aquifer in Northwest Iowa

 

dakota_specific_capacity_contours Specific Capacity of the lower Dakota Aquifer in Northwest Iowa in gpm/ft

 

dakota_sulfate_contours Distribution of dissolved sulfate in water from the Dakota aquifer in Northwest Iowa

 

dakota_sulfate_points Distribution of dissolved sulfate in water from the Dakota aquifer in Northwest Iowa

 

dakota_tds_contours Distribution of total dissolved solids in water from the Dakota aquifer in Northwest Iowa

 

dakota_tds_points Distribution of total dissolved solids in water from the Dakota aquifer in Northwest Iowa

 

dakota_tdswq_contours Water Quality based on total dissolved solids in water from the Dakota aquifer in Northwest Iowa

 

dakota_temperature_contours Distribution of temperature in degrees Celsius of water from the Dakota aquifer in Northwest Iowa

 

dakota_temperature_points Distribution of temperature in degrees Celsius of water from the Dakota aquifer in Northwest Iowa

 

dakota_top_elev_contours Elevation of the top of the lower Dakota Aquifer in Northwest Iowa

 

dakota_transmissivity_ft_contours Transmissivity of the lower Dakota Aquifer in Northwest Iowa in square feet/day

 

dakota_transmissivity_gpd_contours Transmissivity of the lower Dakota Aquifer in Northwest Iowa in gpd/ft

 

dakota_tritium_contours Distribution of tritium in water from the Dakota aquifer in Northwest Iowa

 

dakota_tritium_points Distribution of tritium in water from the Dakota aquifer in Northwest Iowa

 

dakota_yield_contours Potential Well Yields from the lower Dakota Aquifer in Northwest Iowa in gpm

 

dakota_yields Potential Well Yields from the lower Dakota Aquifer in Northwest Iowa in gpm

 

Designated_lakes Designated lakes other than general class

 

Designated_lakes_2002 2002 Lakes Designated for Human Contact, Consumption, Fishery, or High Quality Use

 

Designated_lakes_2004 2004 Lakes Designated for Human Contact, Consumption, Fishery, or High Quality Use

 

Designated_Rivers Designated Stream Segments of the State of Iowa

 

designated_wetlands_setback Wetlands Designated as Protected by the Iowa DNR

 

devonian_isopach Distribution and isopach thickness, in feet, of Devonian rocks in Iowa

 

federal_reservoirs Federally-Owned Reservoirs in Iowa

 

Flood_Zones_FEMA_DFIRM Effective Digital Flood Insurance Rate Map FLood Zones of the One-Percent and 0.2-Percent Zones in the State of Iowa

 

gages_IFIS Iowa Flood Information System Stream Sensor Locations

 

Ground_water_contaminants Groundwater Contaminants Database of Iowa

 

ground_water_general_quality General Groundwater Quality Database of Iowa

 

groundwater_capture_zones Groundwater Capture Zones

 

Groundwater_vulnerability_regions Groundwater Vulnerability Regions of Iowa

 

GW_Quality Ground Water Quality Database of Iowa, General and Contanminants, in File Geodatabase format

 

impaired_Lakes_1998 Lakes on the 1998 Impared Waters (303d) List

 

impaired_lakes_2002 Lakes on the 2002 Impaired Waters (303d) List

 

Impaired_Lakes_2004 Impaired Lakes 2004

 

Impaired_Lakes_2006 Lakes in Iowa Listed as Impaired in 2006 Under the Clean Water Act

 

Impaired_lakes_2008 Lakes in Iowa Listed as Impaired in 2008 Under the Clean Water Act

 

impaired_lakes_2010 Lakes in Iowa Listed as Impaired in 2010 Under the Clean Water Act

 

Impaired_Lakes_2012 Iowa's 2012 Listing of Clean Water Act Section 303(d) and 305(b) Impaired Lakes

 

impaired_streams_1998 Streams on the 1998 Impared Waters (303d) List

 

impaired_streams_2002 Streams on the 2002 Impaired Waters (303d) List

 

Impaired_streams_2004 Impaired Streams 2004

 

impaired_streams_2006 Streams in Iowa Listed as Impaired in 2006 Under the Clean Water Act

 

impaired_streams_2008 Streams in Iowa Listed as Impaired in 2008 Under the Clean Water Act

 

impaired_streams_2010 Streams in Iowa Listed as Impaired in 2010 Under the Clean Water Act

 

Impaired_Streams_2012 Iowa's 2012 Listing of Clean Water Act Section 303(d) and 305(b) Impaired Streams

 

IowaTER_Sites Iowater Water Quality Monitoring Sites

 

jordan_chloride Chloride concentration, in mg/L of the water from the Jordan Aquifer in Iowa

 

jordan_dissolved_solids Dissolved solids concentration, in mg/L, of the water from the Jordan Aquifer in Iowa

 

jordan_fluoride Fluoride concentration, in mg/L, of the water from the Jordan Aquifer in Iowa

 

jordan_h2o_quality_range Water quality range, from poor to good, for the Jordan Aquifer in Iowa

 

jordan_h2o_quality_wells Locations of water-quality sampling sites of water from the Jordan Aquifer in Iowa

 

jordan_hardness Hardness concentration, in mg/L, of the water from the Jordan Aquifer in Iowa

 

jordan_isopach Distribution and isopach thickness, in feet, of the Jordan Aquifer in Iowa

 

jordan_potentiometric Potentiometric surface, in feet above mean sea level, of the Jordan Aquifer in Iowa

 

jordan_pre-potentiometric Pre-development potentiometric surface, in feet above mean sea level, of the Jordan Aquifer in Iowa

 

jordan_radium Radium-226 concentration, in pCi/L, of the water from the Jordan Aquifer in Iowa

 

jordan_recession Areal recession, in feet, of the potentiometric surface of the Jordan Aquifer in Iowa

 

jordan_sodium Sodium concentration, in mg/L, of the water from the Jordan Aquifer in Iowa

 

jordan_sulfate Sulfate concentration, in mg/L, of the water from the Jordan Aquifer in Iowa

 

jordan_temperature Temperature of the water, in F, from the Jordan Aquifer in Iowa

 

jordan_topography Surface topography, in feet above mean sea level, of the Jordan Aquifer in Iowa

 

jordan_transmissivity Transmissivity, in ft/day, of the Jordan Aquifer in Iowa

 

jordan_usage Regions of usage for the Jordan Aquifer in Iowa

 

jordan_water_quality Water Quality Regions of the Jordan Aquifer in Iowa

 

Lakes_303d_2002 Lakes from the Impared Waters List of the 2002 305b Report

 

Lakes_305b_1996 Lake use assessment for 1994-1995 as provided in the 1996 305(b) Report

 

lime_creek_isopach Distribution and isopach thickness, in feet, of the Lime Creek Shale in Iowa

 

Lower_Dakota_level_2000s Potentiometric Surface of the Lower Dakota Aquifer During the 2000s

 

Lower_Dakota_obs_2000s Locations of Wells in the Lower Dakota Aquifer with Static Water Level Measuresments made in the 2000s

 

Major_lakes Major Lakes and Federal Impoundments of Iowa

 

Major_rivers Major Iowa Rivers

 

major_water_source_lakes Major Water Source Lakes as Defined by Iowa Administrative Code

 

major_water_sources Major Water Source Rivers in Iowa

 

maple_mill-sheffield_isopach Distribution and isopach thickness, in feet, of the Maple Mill-Sheffield Shale in Iowa

 

maquoketa_galena_subcrop Distribution of the Maquoketa Formation and Galena Group subcrops below the Silurian-Devonian Aquifer in Iowa

 

mississippian_dissolved_solids Dissolved solids concentration, in mg/L, of the water from the Mississippian Aquifer in Iowa

 

mississippian_evaporite Area where Mississippian evaporite rocks are known and inferred in Iowa

 

mississippian_fluoride Fluoride concentration, in mg/L, of the water from the Mississippian Aquifer in Iowa

 

mississippian_geology Geology of the Mississippian Aquifer in Iowa

 

mississippian_h2o_quality_wells Well location map showing the water-quality sampling sites of water from wells completed in the Mississippian Aquifer in Iowa

 

mississippian_hardness Hardness of the water, in mg/L, from the Mississippian Aquifer in Iowa

 

mississippian_isopach Distribution and isopach thickness, in feet, of the Mississippian Aquifer in Iowa

 

mississippian_outcrop_subcrop Outcrop and subcrop areas of the Mississippian Aquifer in Iowa

 

mississippian_potentiometric Potentiometric surface, in feet above mean sea level, of the Mississippian Aquifer in Iowa

 

mississippian_sodium Sodium concentration, in mg/L, of the water from the Mississippian Aquifer in Iowa

 

mississippian_specific_capacity Specific capacity, in gpm/ft, of wells pumping from the Mississippian Aquifer in Iowa

 

mississippian_sulfate Sulfate concentration, in mg/L, of the water from the Mississippianlurian Aquifer in Iowa

 

mississippian_topography Surface topography, in feet above mean sea level, of the Mississippian Aquifer in Iowa

 

mississippian_usage Regions of Usage of the Mississippian Aquifer in Iowa

 

mississippian_water_quality Water Quality Regions of the Mississippian Aquifer in Iowa

 

Municipal_water_intake Municipal wells and surface water intakes in Iowa

 

NHD_Area National Hydrography Dataset, Areas with Hydrologic Significance in Iowa

 

NHD_flowline National Hydrography Dataset, Flowlines with Hydrologic Significance in Iowa

 

NHD_waterbody National Hydrography Database, Waterbodies with Hydrologic Significance in Iowa

 

NWI_2002 National Wetland Inventory of Iowa

 

NWI_linears_2002 National Wetland Inventory of Iowa, Linear Features

 

NWI_polygons_2002 National Wetland Inventory of Iowa, Polygon Features

 

outstanding_iowa_waters Outstanding Iowa Waters

 

Pennsylvanian_edge Northern edge of Pennsylvanian rocks overlying the Mississippian Aquifer in Iowa

 

prairie_du_chien_topo Surface topography, in feet above mean sea level, of the Prairie Du Chien Formation in Iowa

 

Private_well_test Private well testing

 

Protected_streams Streams in Iowa protected from channel straightening

 

protected_water_areas Protected Water Areas of Iowa

 

public_water_supply_facility Public Water Supply Facilities

 

PWTS_wells Private Well Tracking System Wells

 

Significant_Public_Lakes Significant Publicly-Owned Lakes in Iowa

 

sil_btm Bottom of the Silurian Aquifer (Top of the Maquoketa Formation)

 

sil_hydrcond Hydraulic Conductivity of the Silurian Aquifer in feet/day

 

sil_isopach Isopach (thickness) of the Silurian aquifer in east central Iowa

 

sil_top Elevation of the top of the Silurian aquifer

 

sil_trans Transmissivity of the Silurian aquifer in feet squared per day

 

silurian_isopach Distribution and isopach thickness, in feet, of Silurian rocks in Iowa

 

silurian_recharge Transmissivity of the Silurian aquifer in feet squared per day

 

silurian_water_level_2000s Silurian Aquifer Water Levels in Iowa from 2000-2009

 

silurian_water_points_2000s Silurian Aquifer Wells with Static Water Levels from 2000-2009

 

silurian_well_yields Transmissivity of the Silurian aquifer in feet squared per day

 

silurian-dev_confining_shales Distribution and isopach thickness, in feet, of the confining shales below the base of the Silurian-Devonian Aquifer in Iowa

 

silurian-dev_dissolved_solids Dissolved solids concentration, in mg/L of the water from the Silurian-Devonian Aquifer in Iowa

 

silurian-dev_h2o_quality_wells Locations of water-quality sampling sites of water from the Silurian-Devonian Aquifer in Iowa

 

silurian-dev_usage Regions of usage of the Silurian-Devonian Aquifer in Iowa

 

silurian-dev_water_quality Water Quality Regions of the Silurian-Devonian Aquifer in Iowa

 

silurian-devonian_base_topo Base topography, in feet above mean sea level, of the Silurian-Devonian Aquifer in Iowa

 

silurian-devonian_chloride Chloride concentration, in mg/L of the water from the Silurian-Devonian Aquifer in Iowa

 

silurian-devonian_evaporite Area where Devonian evaporite rocks are known and inferred in association with the Silurian-Devonian Aquifer in Iowa

 

silurian-devonian_fluoride Fluoride concentration, in mg/L, of the water from the Silurian-Devonian Aquifer in Iowa

 

silurian-devonian_hardness Hardness of the water, in mg/L, from the Silurian-Devonian Aquifer in Iowa

 

silurian-devonian_potentiometric Potentiometric surface, in feet above mean sea level, of the Silurian-Devonian Aquifer in Iowa

 

silurian-devonian_sodium Sodium concentration, in mg/L, of the water from the Silurian-Devonian Aquifer in Iowa

 

silurian-devonian_sulfate Sulfate concentration, in mg/L, of the water from the Silurian-Devonian Aquifer in Iowa

 

silurian-devonian_temperature Temperature, in C, of the water from the Silurian-Devonian Aquifer in Iowa

 

silurian-devonian_topo Surface topography, in feet above mean sea level, of the Silurian-Devonian Aquifer in Iowa

 

sourcewater_cont_srcs Source Water Protection Contaminant Sources

 

sourcewater_otherwells Source Water Protection Other Wells

 

sourcewater_wells Source Water Assessment and Protection Wells

 

STORET_sites STORET Water Monitoring Sites in Iowa

 

Stream_order Strahler stream order for rivers in Iowa

 

sub_cretaceous_elev_contours Elevation of the top of sub-Cretaceous rocks in Northwest Iowa

 

sub_dak_depth Depth to the top of sub-Cretaceous rocks in Northwest Iowa

 

sub_dak_elev Elevation of the top of sub-Cretaceous rocks in Northwest Iowa

 

surface_water_intake_public Public surface water intakes

 

surfacewater_capture_zones Surface-Water-Sourced Public Water Supply Capture Zones

 

USGS_gages USGS Stream Gauge Stations in Iowa

 

usgs_stream_low_flow_plate3 Annual and Seasonal Low-Flow Characteristics of Iowa Streams (USGS Open File Report 79-555), Iowa Natural Resources Councile Bulletin No. 13, Plate3

 

usgs_stream_low_flow_plate4 Annual and Seasonal Low - Flow Characteristics of Iowa Streams (USGS Open File Report 79-555), Iowa Natural Resources Council Bulletin No. 13, Plate 4

 

water_treatment_plants Water Treatment Plants

 

water_use_facility Water Use Permits

 

water_use_surface_water_intakes Surface Water Intakes in Water Use Permits

 

water_use_wells Wells in Water Use Permits

 

waterbody Water Bodies in Iowa

 

waterbody_point Water Bodies in Iowa (represented as points)

 

waterbody_point_tmdl Current Water Quality Improvement Plan (Total Maximum Daily Load) Lake Status