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Service Description: This map provides improved estimates of the dependence and spatial distribution of housing units reliant on private domestic by census block group and block. Nationally, based on an understanding of well use from state well logs and the housing unit density, an estimated 23 million housing units are being served by this water resource, 17 per cent of the population. In 1990, 15.1 million households were reliant on wells. In the ensuing 30 years there has been over a 50 percent increase in the number of households relying on these wells. This dataset will assist in a better understanding of the reliance on private domestic wells in the US, better positioning local, state, and federal groups in protecting this water resource from contaminant sources.
Map Name: UST_Blocks
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Copyright Text: Map Service and data: US EPA Office of Research and Development (ORD)
Spatial Reference:
4326
(4326)
Single Fused Map Cache: false
Initial Extent:
XMin: -119.1598289828839
YMin: 32.922504922641814
XMax: -116.02721017290399
YMax: 34.892869864579104
Spatial Reference: 4326
(4326)
Full Extent:
XMin: -179.1472512844536
YMin: 18.910693510708242
XMax: 179.7784547646284
YMax: 71.39037971311119
Spatial Reference: 4326
(4326)
Units: esriDecimalDegrees
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
Document Info:
Title: Map2
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Category:
Keywords: Wells
AntialiasingMode: Fast
TextAntialiasingMode: Force
Supports Dynamic Layers: true
MaxRecordCount: 20000
MaxImageHeight: 4096
MaxImageWidth: 4096
Supported Query Formats: JSON, geoJSON, PBF
Supports Query Data Elements: true
Min Scale: 0
Max Scale: 0
Supports Datum Transformation: true
Child Resources:
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