"Wells completed in the bedrock aquifers generally have lower yields than wells in most of the sand and gravel aquifers, but the bedrock aquifers are areally widespread and a major source of water for many domestic users and some large users of ground water. Carbonate rocks (limestone and dolostone); sandstones; complexly interbedded sandstone, siltstone, shale, limestone, and coal; and an upper weathered zone in low permeability rocks comprise the types of bedrock aquifers. Aquifers in carbonate rocks of Silurian, Devonian, and Mississippian age underlie about one-half of Indiana and are the most important of the bedrock aquifers in terms of yield and areal extent. The other principal type of bedrock aquifer is sandstone, which underlies large areas in the southwestern one-fifth of Indiana. The mapped sandstones are located within deposits of complexly interbedded sandstone, siltstone, shale, limestone, and coal of Mississippian and Pennsylvanian age. These complex deposits yield small quantities of water of variable quality, but they are important if they are the only available aquifer in a particular area. The remaining bedrock aquifer, which is used when it is the sole source of water for an area, is an upper weathered zone developed primarily in siltstone and shale of Mississippian and Devonian age and, to a lesser extent, in some of the shale and limestone of Ordovician age. No aquifer is mapped in the southeastern corner of Indiana, which is underlain by shale and limestone of Ordovician age."
A LYR (Aquifers_bedrock_USGS_IN.lyr) file accompanies this data layer to assist the user with symbolization so that the vertical sequence of aquifer systems can be visualized in geographic information system (GIS) software, particularly ESRI software products.
DATA DISCLAIMER: This data set was compiled by Indiana University, Indiana Geological Survey, using data believed to be accurate; however, a degree of error is inherent in all data. This product is distributed "AS-IS" without warranties of any kind, either expressed or implied, including but not limited to warranties of suitability to a particular purpose or use. No attempt has been made in either the design or production of these data to define the limits or jurisdiction of any federal, state, or local government. These data are intended for use only at the published scale or smaller and are for reference purposes only. They are not to be construed as a legal document or survey instrument. A detailed on-the- ground survey and historical analysis of a single site may differ from these data.
COPYRIGHT 2008, THE TRUSTEES OF INDIANA UNIVERSITY, INDIANA GEOLOGICAL SURVEY, ALL RIGHTS RESERVED
CREDIT: It is requested that the Indiana Geological Survey be cited in any products generated from this data. The following source citation should be included: AQUIFERS_BEDROCK_USGS_IN: Bedrock Aquifer Systems in Indiana (United States Geological Survey, 1:500,000, Polygon Shapefile), data compilation by Anne Hereford and Sally Letsinger, 2008.
WARRANTY: Indiana University, Indiana Geological Survey warrants that the media on which this product is stored will be free from defect in materials and workmanship for ninety (90) days from the date of acquisition. If such a defect is found, return the media to Publication Sales, Indiana Geological Survey, 611 North Walnut Grove Avenue, Bloomington, Indiana 47405 2208, and it will be replaced free of charge.
LIMITATION OF WARRANTIES AND LIABILITY: Except for the expressed warranty above, the product is provided "AS IS", without any other warranties or conditions, expressed or implied, including, but not limited to, warranties for product quality, or suitability to a particular purpose or use. The risk or liability resulting from the use of this product is assumed by the user. Indiana University, Indiana Geological Survey shares no liability with product users indirect, incidental, special, or consequential damages whatsoever, including, but not limited to, loss of revenue or profit, lost or damaged data or other commercial or economic loss. Indiana University, Indiana Geological Survey is not responsible for claims by a third party. The maximum aggregate liability to the original purchaser shall not exceed the amount paid by you for the product.
Lake Michigan River Basin aquifers: Table 3, page 23
St Joseph River Basin aquifers: Table 4, page 33
Kankakee River Basin aquifers: Table 5, page 47
Maumee River Basin aquifers: Table 6, page 61
Upper Wabash River Basin aquifers: Table 7, page 81
Middle Wabash River Basin aquifers: Table 8, page 99
Lower Wabash River Basin aquifers: Table 9, page 110
White River Basin aquifers: Table 10, page 132
East Fork White River Basin aquifers: Table 11, page 153
Whitewater River Basin aquifers: Table 12, page 164
Patoka River Basin aquifers: Table 13, page 174
Ohio River Basin aquifers: Table 14, page 196
This shapefile was derived and modified from a preexisting published paper map: Gray, H.H., Ault, C.H., and Keller, S.J., 1987, Bedrock geologic map of Indiana, Indiana Geological Survey Miscellaneous Map 48, scale 1:500,000.
COPYRIGHT 2008, THE TRUSTEES OF INDIANA UNIVERSITY, INDIANA GEOLOGICAL SURVEY, ALL RIGHTS RESERVED
The information on these media is proprietary to Indiana University, Indiana Geological Survey. Any copying, adaptation, distribution, public performance, or public display of this information without the express written consent of Indiana University, Indiana Geological Survey is discouraged.
CREDIT: It is requested that the Indiana Geological Survey be cited in any products generated from this data. The following source citation should be included: AQUIFERS_BEDROCK_USGS_IN: Bedrock Aquifer Systems in Indiana (United States Geological Survey, 1:500,000, Polygon Shapefile), data compilation by Anne Hereford and Sally Letsinger, 2008.
WARRANTY: Indiana University, Indiana Geological Survey warrants that the media on which this product is stored will be free from defect in materials and workmanship for ninety (90) days from the date of acquisition. If such a defect is found, return the media to Publication Sales, Indiana Geological Survey, 611 North Walnut Grove Avenue, Bloomington, Indiana 47405 2208, and it will be replaced free of charge.
LIMITATION OF WARRANTIES AND LIABILITY: Except for the expressed warranty above, the product is provided "AS IS", without any other warranties or conditions, expressed or implied, including, but not limited to, warranties for product quality, or suitability to a particular purpose or use. The risk or liability resulting from the use of this product is assumed by the user. Indiana University, Indiana Geological Survey shares no liability with product users indirect, incidental, special, or consequential damages whatsoever, including, but not limited to, loss of revenue or profit, lost or damaged data or other commercial or economic loss. Indiana University, Indiana Geological Survey is not responsible for claims by a third party. The maximum aggregate liability to the original purchaser shall not exceed the amount paid by you for the product.