Illinois State Geological Survey 1984 20040423 vector digital data ISGS GIS Database GISDB_QTGEO.IL_Soil_Associations_1984_Py Champaign, Illinois Illinois State Geological Survey http://www.isgs.illinois.edu/ http://illinois.edu This is a polygon feature class showing soil associations in Illinois, from the General Soil Map of Illinois (Fehrenbacher, 1982). Created in 1984 by ESRI. A soil association is a group of related soil series that generally occur in a characteristic pattern of landscapes that have identifiable topographic features, slopes, and parent materials. The General Soil Map of Illinois (scale 1:500,000) identifies the location and extent of 50 soil association types. To spatially identify soils and soil relationships. These data are suitable for regional and statewide uses. It is suggested that these data not be used at scales greater than 1:1,000,000. The data are not appropriate as a geodetic, legal or engineering base. The data set was not and is not intended as a substitute for surveyed locations, such as can be determined by a registered Public Land Surveyor. Although useful in a GIS as a reference base layer for maps, the data set has no legal basis in the definition of boundaries or property lines. The dataset contains many errors, and is an extremely generalized representation of the source. Linework errors up to 1 mile are common, and in some cases, discreptancies exceed 4 miles. It is advised that these data be used at scales of 1:1,000,000 or smaller. Anyone wishing to utilize the data at a scale of 1:500,000 should seriously consider re-automation of the data. The state boundary with territory extending into Lake Michigan is utilized in this dataset. Recent updates to the data: In April 2004 edition 1.0 of the data set was transitioned to storage in an Oracle RDBMS using the ArcSDE geodatabase model. The result (this version) is designated Edition 20040423. 1984 publication date Complete None planned -91.510917 -87.022340 42.510709 36.968509 none geology soil association surface surficial none Illinois ISGS information must be obtained directly from the ISGS or from an authorized distributor. Be aware that ISGS information obtained from an unauthorized third party may have been altered subsequent to original distribution, or may no longer be current. Any access to these data, Web sites, computer systems, electronic services, and electronic networks is governed by University and campus policies, in particular, but not limited to, the Policy on Appropriate Use of Computers and Network Systems at the University of Illinois at Urbana-Champaign, the ISGS Terms of Use document available at the ISGS Web site, and the University of Illinois Web Privacy Notice. Links to these are provided in the Cross References section. ISGS information is the property of and copyrighted by the Board of Trustees of the University of Illinois with all rights reserved.  University copyright policy is stated in the General Rules Concerning University Organization and Procedure, Article III, Section 4. A link is provided in the Cross References section. Individuals or entities may make fair use of copyrighted ISGS material, such as reproducing a single figure or table, or using a brief text quotation, without obtaining formal permission, but in all cases the Illinois State Geological Survey must be credited as the source of the material. To reproduce ISGS information beyond the fair use standard, permission must be obtained from the ISGS Information Office, 615 East Peabody Drive, Champaign, Illinois 61820, 217-333-4747, isgs@isgs.illinois.edu. License fees and a license agreement may be required, depending on the proposed usage. Any use of these data is governed by University and campus policies, in particular, but not limited to, the Policy on Appropriate Use of Computers and Network Systems at the University of Illinois at Urbana-Champaign, the ISGS Terms of Use document available at the ISGS Web site, and the University of Illinois Web Privacy Notice. Links to these are provided in the Cross References section. Map information is to be used at a scientifically and cartographically appropriate scale, that is, at a scale no greater than indicated on the map or as described in the documentation of the map or map data.  Map information is not appropriate for, and is not to be used as, a geodetic, legal, or engineering base. Map information has no legal basis in the definition of boundaries or property lines and is not intended as a substitute for surveyed locations such as can be determined by a registered Public Land Surveyor. The data do not replace the need for detailed site-specific studies. Please refer to the Distribution Information section. ArcSDE 9.1 on Oracle 10g http://www.isgs.illinois.edu http://www.vpaa.uillinois.edu/policies/web_privacy.cfm http://www.uillinois.edu/trustees/rules.cfm#sec34 http://www.fs.uiuc.edu/cam/CAM/viii/viii-1.1.html Refer to process step entries. No report. Refer to process step entries. Refer to process step entries. Fehrenbacher, J.B. 1982 map Illinois Agricultural Experiment Station University of Illinois at Urbana-Champaign 500000 paper 1982 publication date none linework and attributes This is a legacy data set. Exact original process steps are unknown. However, some considerations during integration included: In alluvial areas, soil unit boundaries were adjusted to corresponding Quaternary geology or Stack-unit delineations. Where alluvial soil units could be verified on the Landsat scene, they were extended up drainages for a maximum of an additional 0.5 inch. Further extension would have deviated too much from the original map. When soil units meandered back and forth along drainages, they were redrafted to fit the topography and landforms. Soil units located outside of alluvial areas were not integrated unless sliver polygons were created. In order to resolve sliver polygons, the lines created from either the Quaternary geology or STACK unit maps were considered more definitive. Soil units were not changed where they extended into mined-out areas shown on either the Stack-unit or Quaternary geology maps. 1984 Coverage was given cursory review in August, 1997. There were several label errors. Coverage was re-dissolved from parent coverage SOILDONE. Coverage SOILDONE was moved to directory surf and renamed SOILMSTR. An overlay of the dataset with the source map shows that the coverage has many linework errors. 19970825 Source coverages (soilassoc and soilmstr) converted to double precision and reprojected to GCS_NAD83 using Workstation ArcInfo 7.2.1. The features were imported into the ISGS SDE enterprise database following steps outlined in ISGS procedure GISDB_0009. Metadata updated. 20040423 Vector G-polygon 2784 0.000001 0.000001 Decimal degrees North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 IL_Soil_Associations_1984_Py FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. SOIL_ASC P S Attribute items are in typical feature class format. Those requiring explanation are: SOIL-ASC - Combined parent material (P) amd Soil association (S) codes as tabulated below P - Soil parent material 01 - Thick loess (>60 inches) 02 - Moderately thick to thin loess (10-60+ inches) on Illinoian drift with or without paleosols 03 - Moderately thick to thin loess (20-60 inches) on Aeolian Wisconsinan loamy sands or sands 04 - Moderately thick loess (40-60 inches) on medium-to-fine-textured, Wisconsinan till or lacustrine sediments 05 - Moderately thick to thin loess or silty material (24-60+ inches) on medium-textured, Wisconsinan outwash 06 - Thin loess (10-40 inches) on loam or sandy loam, Wisconsinan till 07 - Thin loess (<20 inches) on silty clay loam, Wisconsinan till, or lacustrine sediments 08 - Thin loess (<20 inches) on silty clay or clay, Wisconsinan till, or lacustrine sediments 09 - Loamy, silty, and clayey Wisconsinan lacustrine sediments 10 - Thin loamy or silty materials on gravelly Wisconsinan outwash 11 - Thin silty or loamy materials on sandy and loamy Wisconsinan outwash 12 - Thick, sandy Wisconsinan outwash and Aeolian materials 13 - Thin to thick loess or loamy materials with or without residuum on limestone 14 - Thin to thick loess or loamy materials with or without residuum on interbedded sandstone, siltstone, and shale 15 - Sandy to clayey alluvial sediments on bottomlands 16 - Organic materials (peats and mucks) 98 - Water S - Soil association Dark and Moderately Dark (Prairie) 01 - Port Byron-Joy 02 - Tama-Muscatine-Sable 03 - Tama-Ipava-Sable 04 - Herrick-Virden-Piasa 05 - Oconee-Cowden-Piasa 06 - Hoyleton-Cisne-Huey 07 - Winnebago-Durand-Ogle 08 - Broadwell-Waukegan-Pillot 09 - Catlin-Flanagan-Drummer 10 - Wenona-Rutland-Streator 11 - Plano-Proctor-Worthen 12 - Saybrook-Dana-Drummer 13 - Griswold-Ringwood 14 - Varna-Elliott-Ashkum 15 - Symerton-Andres-Reddick 16 - Swygert-Bryce-Mokena 17 - Clarence-Rowe 18 - Harco-Patton-Montgomery 19 - Martinton-Milford 20 - Lorenzo-Warsaw-Wea 21 - Jasper-LaHogue-Selma 22 - Sparta-Dickinson-Onarga 23 - Channahon-Dodgeville-Ashdale 24 - Lawson-Sawmill-Darwin 25 - Houghton-Palms-Muskego Light and Moderately Dark (Forest) 31 - Seaton-Timula 32 - Fayette-Rozetta-Stronghur 33 - Alford-Muren-Iva 34 - Clinton-Keomah-Rushville 35 - Hosmer-Stoy-Weir 36 - Ava-Bluford-Wynoose 37 - Westville-Pecatonica-Flagg 38 - Middletown-Tell-Thebes 39 - Birkbeck-Sabina-Sunbury 41 - St. Charles-Camden-Drury 42 - Dodge-Russell-Miami 43 - Kidder-McHenry 44 - Morley-Blount-Beecher 45 - St. Clair-Nappanee-Frank 46 - Markland-Colp-Del Rey 48 - Casco-Fox-Ockley 49 - Martinsville-Sciotoville 50 - Oakville-Lamont-Alvin 51 - Ritchey-New Glarus-Palsgrove 52 - Alford-Goss Baxter 53 - Alford-Wellston 54 - Hosmer-Zanesville-Berks 55 - Grantsburg-Zansville-Wellston 56 - Derinda-Schapville-Elroy 57 - Haymond-Petrolia-Karnak 98 - Water Information Office, Illinois State Geological Survey (ISGS), a division of the Institute of Natural Resource Sustainability (INRS) of the University of Illinois mailing and physical address

615 East Peabody Drive

Champaign Illinois 61820 USA 217-333-4747 217-785-0211 isgs@isgs.illinois.edu 8:00 a.m. - 4:30 p.m., Monday-Friday, U.S. Central Time Refer to the Legal Notices of Terms and Conditions of the University of Illinois Web Privacy Policy (there is a link in the Cross References section) for policy statements regarding the following: Disclaimer of Liability Disclaimer of Warranties and Accuracy of Data Disclaimer of Endorsement Disclaimer for External Links Disclaimer of Duty to Continue Provision of Data Security Choice of Law By obtaining these data you agree to the provisions of the University of Illinois Web Privacy Policy, regardless of the manner in which the information was obtained. The data are intended for use with GIS software. The ISGS uses ESRI ArcGIS software, however, ESRI formats can be imported into many different GIS software packages. It is expected that customers who obtain these data have the technical expertise to use GIS software. The ISGS does not provide software support of any kind. 20090224 Please refer to the Distribution Information section. FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time The access constraints as stated for the data apply also to the metadata. Refer to the Access Constraints section of the Identification Information section. The use constraints as stated for the data apply also to the metadata. Refer to the Use Constraints section of the Identification Information section. http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile