Nitrate Leaching Classes of Illinois Soils
Entry ID: IGDNR_NO3LEACH

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Summary
Abstract: This data set was designed for statewide evaluation of
agrichemical leaching characteristics and associated
aquifer sensitivity to contamination. It was created to
classify soils and aquifer settings according to predictions
of leaching potential. The classifications have not been
validated by the results of water quality sampling. In
addition, the use of these aquifer sensitivity ratings as
predictors of water quality has not been evaluated.

This is a statewide Arc/Info data set of soil characteristics
relating to nitrate leaching. It was generated to aid in
determining aquifer sensitivity to nitrate leaching in Illinois.
The source map was digitized at 1:250,000, but was developed from
source data mapped at 1:15,000. The publication of this map was at
1:500,000. Nominal scale is 1:250,000.

Two statewide data sets were identified as containing
information that would be useful for producing aquifer
sensitivity maps: a soil association map (and database)
and a map of geologic materials to a depth of 50 feet
(Stack-unit map). The soil association map and database
were used in an interpretive mapping model that generated
a map of nitrate leaching classes by evaluating factors that

relate to water movement characteristics of the soil.

The result is six nitrate leaching classes that group soil
associations based on the relative probability of nitrate movement
through the associated soil profiles. The ranking is qualitative,
and is based on the median leaching value of the soil map units
that comprise each soil association. Nitrate leaching classes
include: Excessive, High, Moderate, Somewhat Limited, Limited,
and Very Limited. See ISGS EG 148 for the derivation of these
classes.

To provide a measure of leaching class variability within each
association, leaching class range values were calculated. To
reduce the impact of extreme leaching class values on this
estimate, the the range values were trimmed so that the upper
and lower 10% of values were not included in the calculation.
These trimmed range values were used as an overprint on the
published map of nitrate leaching classes (see cross reference
entries).

Disturbed land and surface water areas are also shown.

These data are to be used in conjunction with ISGS Environmental
Geology report 148. This data set is one of a suite of six
related data sets (listed below). Full citation details are
available in the Cross References section.

Aquifer Sensitivity to Contamination by Nitrate Leaching in Illinois
Nitrate Leaching Classes of Illinois Soils (this data set)
Nitrate Leaching Class Ranges

Aquifer Sensitivity to Contamination by Pesticide Leaching in Illinois
Pesticide Leaching Classes of Illinois Soils
Pesticide Leaching Class Ranges

This coverage includes county lines. These lines are not directly
relevant to the data, but are necessary for technical reasons.
Without the additional county lines, some of the polygons exceed
the maximum allowable vertex limit in ARCPLOT. This problem is
solved by the additional county lines, which serve to divide polygons
with too many vertices into smaller units. Accordingly, to remove
the county lines from maps created with ARCPLOT, the DROPLINE
command must be used on conjunction with the COUNT-FED-FIPS
polygon item.

Related URL
Link: GET DATA
Description: Data available in Arc/Info export format.


Link: VIEW EXTENDED METADATA
Description: FGDC metadata on Nitrate Leaching Classes of Illinois Soils.


Parent DIF
This data set description is a member of a collection. The collection is described in
IGDNR_NO3AQSENS


Geographic Coverage
 N: 42.0 S: 36.0  E: -87.0  W: -91.0

Data Set Citation
Dataset Originator/Creator: Illinois State Geological Survey
Dataset Title: Nitrate Leaching Classes of Illinois Soils
Dataset Series Name: ISGS GIS Database
Dataset Release Date: 1995
Dataset Release Place: Champaign, Illinois
Dataset Publisher: Illinois State Geological Survey
Version: 1.0
Data Presentation Form: map


Temporal Coverage
Start Date: 1995-01-01
Stop Date: 1995-12-31


Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ILLINOIS


Data Resolution
Latitude Resolution: not determined
Longitude Resolution: not determined


Science Keywords
AGRICULTURE >AGRICULTURAL CHEMICALS >FERTILIZERS    [Definition]
AGRICULTURE >AGRICULTURAL CHEMICALS >PESTICIDES    [Definition]
AGRICULTURE >ANIMAL SCIENCE >ANIMAL MANURE AND WASTE    [Definition]
HUMAN DIMENSIONS >ENVIRONMENTAL IMPACTS >CONTAMINANT LEVELS/SPILLS    [Definition]
HUMAN DIMENSIONS >ENVIRONMENTAL GOVERNANCE/MANAGEMENT >LAND MANAGEMENT    [Definition]
HUMAN DIMENSIONS >ENVIRONMENTAL GOVERNANCE/MANAGEMENT >LAND MANAGEMENT >LAND USE CLASSES    [Definition]
TERRESTRIAL HYDROSPHERE >GROUND WATER >GROUNDWATER CHEMISTRY    [Definition]
TERRESTRIAL HYDROSPHERE >WATER QUALITY/WATER CHEMISTRY >CONTAMINANTS    [Definition]
TERRESTRIAL HYDROSPHERE >WATER QUALITY/WATER CHEMISTRY >NITROGEN COMPOUNDS    [Definition]
TERRESTRIAL HYDROSPHERE >WATER QUALITY/WATER CHEMISTRY >TOXIC CHEMICALS    [Definition]
LAND SURFACE >EROSION/SEDIMENTATION >SEDIMENT CHEMISTRY    [Definition]
LAND SURFACE >LAND USE/LAND COVER >LAND PRODUCTIVITY    [Definition]
LAND SURFACE >LAND USE/LAND COVER >LAND RESOURCES    [Definition]
LAND SURFACE >LAND USE/LAND COVER >LAND USE CLASSES    [Definition]
LAND SURFACE >SOILS >SOIL CHEMISTRY    [Definition]


ISO Topic Category
FARMING
ENVIRONMENT


Access Constraints
none


Use Constraints
Reproduction or redistribution of copyrighted digital data sets or products
derived therefrom outside of licensees' organization or entity is expressly
forbidden. The only exception is redistribution to consultants working for the
licensee, and then only for purposes, related to work for the licensee. Such
consultants may not further reproduce or redistribute these data sets. None of
these data shall be electronically duplicated on magnetic or optical media for
use by others, in whole or in part, without permission of the appropriate
custodial division within DNR. Any hardcopies utilizing DNR data sets shall
clearly indicate their source. If the licensee has modified the data in any
way they are obligated to describe the types of modifications they have
performed on the hardcopy map. Licensee specifically agrees not to
misrepresent DNR data sets, nor to imply that changes they made were approved
by DNR. These data are not to be used for commercial profit.


Keywords
AQUIFER
CONTAMINATION
GEOLOGY
LEACHATE
NITRATE
SOIL
GIS
Geographic Information Systems


Data Set Progress
COMPLETE


Originating Center
IGDNR


Data Center
Geological Survey, Dept. of Natural Resources, Illinois    [Information]
Data Center URL: http://www.isgs.uiuc.edu/

Data Center Personnel
Name: DATABASE ADMINISTRATOR ILLINOIS STATE GEOLOGICAL SURVEY
Phone: 217-333-5102
Fax: 217-333-2830
Email: denhart at nomad.isgs.uiuc.edu
Contact Address:
615 East Peabody Drive
City: Champaign
Province or State: Illinois
Postal Code: 61820
Country: USA



Distribution
Distribution_Media: Online
Distribution_Size: 9.9MB
Distribution_Format: Arc/Info export format
Fees: No fees


Personnel
DON KEEFER
Role: DIF AUTHOR
Role: TECHNICAL CONTACT
Phone: 217-244-2786
Fax: 217-333-2830
Email: dkeefer at geoserv.isgs.uiuc.edu
Contact Address:
615 East Peabody Drive
City: Champaign
Province or State: Illinois
Postal Code: 61820
Country: USA


Publications/References
Citation_Information:
Originator: Illinois State Geological Survey
Publication_Date: 1995
Title: Pesticide Leaching Classes of Illinois Soils
Edition: 1.0
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: ISGS GIS Database
Issue_Identification: pestleach
Publication_Information:
Publication_Place: Champaign, Illinois
Publisher: Illinois State Geological Survey


Citation_Information:
Originator: Illinois State Geological Survey
Publication_Date: 1995
Title: Pesticide Leaching Class Ranges
Edition: 1.0
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: ISGS GIS Database
Issue_Identification: pestlrange
Publication_Information:
Publication_Place: Champaign, Illinois
Publisher: Illinois State Geological Survey


Citation_Information:
Originator: Illinois State Geological Survey
Publication_Date: 1995
Title:
Aquifer Sensitivity to Contamination by Pesticide Leaching
in Illinois
Edition: 1.0
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: ISGS GIS Database
Issue_Identification: pestaqsens
Publication_Information:
Publication_Place: Champaign, Illinois
Publisher: Illinois State Geological Survey


Citation_Information:
Originator: Illinois State Geological Survey
Publication_Date: 1995
Title: Nitrate Leaching Class Ranges
Edition: 1.0
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: ISGS GIS Database
Issue_Identification: no3lrange
Publication_Information:
Publication_Place: Champaign, Illinois
Publisher: Illinois State Geological Survey


Citation_Information:
Originator: Illinois State Geological Survey
Publication_Date: 1995
Title:
Aquifer Sensitivity to Contamination by Nitrate
Leaching in Illinois
Edition: 1.0
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: ISGS GIS Database
Issue_Identification: no3aqsens
Publication_Information:
Publication_Place: Champaign, Illinois
Publisher: Illinois State Geological Survey


Citation_Information:
Originator: Dennis P. McKenna and Donald A. Keefer
Publication_Date: 1991
Title:
Potential for Agricultural Chemical Contamination of
Aquifers in Illinois
Geospatial_Data_Presentation_Form: report
Series_Information:
Series_Name: ISGS Open File Series (OFS)
Issue_Identification: 1991-7R
Publication_Information:
Publication_Place: Champaign, Illinois
Publisher: Illinois State Geological Survey
Other_Citation_Details: 18p


Citation_Information:
Originator: Dennis P. McKenna and Donald A. Keefer
Publication_Date: 1991
Title:
Potential for Agricultural Chemical Contamination of
Aquifers in Illinois
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: Open File Series (OFS)
Issue_Identification: 1991-7S
Publication_Information:
Publication_Place: Champaign, Illinois
Publisher: Illinois State Geological Survey
Other_Citation_Details:
Statewide map. Color.
Scale, 1:500,000. (computer-generated map)


Citation_Information:
Originator: Dennis P. McKenna and Donald A. Keefer
Publication_Date: 1991
Title:
Potential for Agricultural Chemical Contamination of
Aquifers in ... County Illinois
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: Open File Series (OFS)
Issue_Identification: 1991-7C
Publication_Information:
Publication_Place: Champaign, Illinois
Publisher: Illinois State Geological Survey
Other_Citation_Details:
Individual county maps. Black and white.
Scale, 1:250,000. (computer-generated maps)


Citation_Information:
Originator: Donald A. Keefer
Publication_Date: 1995
Title: Nitrate Leaching Classes of Illinois Soils
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: ISGS Open File Series (OFS)
Issue_Identification: 1995-2
Publication_Information:
Publication_Place: Champaign, Illinois
Publisher: Illinois State Geological Survey
Other_Citation_Details: statewide map, scale 1:500,000


Citation_Information:
Originator: Donald A. Keefer
Publication_Date: 1995
Title:
Aquifer Sensitivity to Contamination by Nitrate
Leaching in Illinois
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: ISGS Open File Series (OFS)
Issue_Identification: 1995-3S
Publication_Information:
Publication_Place: Champaign, Illinois
Publisher: Illinois State Geological Survey
Other_Citation_Details: statewide map, scale 1:500,000


Citation_Information:
Originator: Donald A. Keefer
Publication_Date: 1995
Title: Pesticide Leaching Classes of Illinois Soils
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: ISGS Open File Series (OFS)
Issue_Identification: 1995-4
Publication_Information:
Publication_Place: Champaign, Illinois
Publisher: Illinois State Geological Survey
Other_Citation_Details: statewide map, scale 1:500,000


Citation_Information:
Originator: Donald A. Keefer
Publication_Date: 1995
Title:
Aquifer Sensitivity to Contamination by Pesticide
Leaching in Illinois
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: ISGS Open File Series (OFS)
Issue_Identification: 1995-5S
Publication_Information:
Publication_Place: Champaign, Illinois
Publisher: Illinois State Geological Survey
Other_Citation_Details: statewide map, scale 1:500,000


Citation_Information:
Originator: Donald A. Keefer
Publication_Date: 1995
Title:
Aquifer Sensitivity to Contamination by Pesticide
Leaching in Illinois
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: ISGS Open File Series (OFS)
Issue_Identification: 1995-5C
Publication_Information:
Publication_Place: Champaign, Illinois
Publisher: Illinois State Geological Survey
Other_Citation_Details: county by county maps, scale 1:250,000

Creation and Review Dates
Last DIF Revision Date: 2009-03-26

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