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Description: Iowa Legislative House district boundaries, enacted April 19, 2011, effective beginning with the elections in 2012 for the 85th General Assembly. The districts will remain in effect for the 85th-94th General Assemblies, 2013-2022. Created by the Legislative Services Agency using Code of Iowa Chaper 41, using 2010 Census geographies and populations. For a comprehensive overview of how Redistricting is done in Iowa, see the "Legislative Guide to Redistricting in Iowa": https://www.legis.iowa.gov/DOCS/Central/Guides/redist.pdf.
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Description: Groundwater capture zones are area projected to the land surface determined to provide water to the wells. Capture zones are determined for each groundwater-based public water supply system using available geologic and hydrogeologic information. Limiting criteria for capture zones include time-of-travel distance and topographically derived areas. Arbitrary fixed radii are used for karst-impacted systems and for systems with inadequate well and geologic data. Susceptibility to contamination from surface sources is determined based on the thickness of confining material above the aquifer. For further information, the metadata may be viewed at: ftp://ftp.igsb.uiowa.edu/gis_library/ia_state/hydrologic/ground_waters/source_water/groundwater_capture_zones.html
PWS Names visible between 1:50,000 and 1:250,000