Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This data set represents the extent of the alluvial and glacial aquifers north of the southern-most line of glaciation. Aquifers are shown in the States of Maine, Vermont, New Hampshire, Connecticut, Massachusetts, Rhode Island, New Jersey, New York, Pennsylvania, Ohio, Indiana, Michigan, Wisconsin, Illinois, Minnesota, Iowa, Missouri, Kansas, Nebraska, South Dakota, North Dakota, and Montana. These data delineate the areal extent of the alluvial and glacial aquifers as defined in The Ground Water Atlas of The United States.</SPAN></P><P><SPAN>This data set was constructed by combining data created for or from the regional Groundwater Atlas chapters. Minor aquifers that are important local sources of water were mapped in some regions, so the regional maps in the Groundwater Atlas may show more detail than this data set. The juxtaposition of regionally mapped aquifers has led to some instances where an aquifer outcrop or shallow subcrop is bounded by a State line. This is a result of the regional mapping and national categorization methods used and is not meant to imply a hydrogeologic change coincident with a State boundary. The aquifer outcrop and shallow subcrop boundaries represent broad, regional categories and should not be interpreted as site-specific. </SPAN></P><P><SPAN>See USGS metadata for description of rock type codes </SPAN><A href="https://water.usgs.gov:443/GIS/metadata/usgswrd/XML/aquifers_us.xml" STYLE="text-decoration:underline;"><SPAN>https://water.usgs.gov/GIS/metadata/usgswrd/XML/aquifers_us.xml</SPAN></A></P><P><SPAN>Downloaded from USGS on June 29, 2021 at https://water.usgs.gov/GIS/metadata/usgswrd/XML/aquifers_us.xml#stdorder</SPAN></P><P><SPAN /></P></DIV></DIV></DIV>
Feature Type: Polygon
Type: FeatureLayer
Display Field: ROCK_NAME
Primary Key Field: OBJECTID
Show Map Tips: False
Searchable: False
Identifiable: True
Queryable: True
Can Copy Feature: True
Snappable: True
Snapping Enabled: False
Has Attachments: False
Feature Label: {AQ_NAME}
Feature Description: N/A
Feature Long Description: N/A
Feature Zoom Factor: N/A
Feature Zoom Scale: N/A
Feature Border Color: N/A
Feature Border Width: N/A
Feature Fill Color: N/A
Icon: N/A
Include in Layer List: True
Include in Legend: True
Can Toggle Labels: True
Show Labels: True
Allow Symbolization: True
Draw Index: N/A
Legend URL: N/A
Style Name: N/A
Data Provider: Default
Time Zone ID: N/A
Fields:
OBJECTID (Type: Int32, Visible: False, Searchable: False, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
OBJECTID_1 (Type: Int32, Visible: False, Searchable: False, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
ROCK_NAME [Rock Name] (Type: String, Visible: True, Searchable: False, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: False, Addressable: True)
ROCK_TYPE (Type: Int32, Visible: False, Searchable: False, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
AQ_NAME [Aquifer Name] (Type: String, Visible: True, Searchable: False, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: False, Addressable: True)
AQ_CODE (Type: Int32, Visible: False, Searchable: False, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
Shape_Leng (Type: Double, Visible: False, Searchable: False, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
Shape (Type: Object, Visible: False, Searchable: False, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
Shape.STArea() (Type: Double, Visible: False, Searchable: False, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
Shape.STLength() (Type: Double, Visible: False, Searchable: False, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)