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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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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 Service and data: US EPA Office of Research and Development (ORD)
Spatial Reference:
102003
(102003)
Single Fused Map Cache: false
Initial Extent:
XMin: 281468.3666027362
YMin: -696834.3582161427
XMax: 1867091.7535311496
YMax: 609456.411325918
Spatial Reference: 102003
(102003)
Full Extent:
XMin: -7115207.647500001
YMin: -1337505.3457000004
XMax: 2258243.9970999993
YMax: 4591848.410800001
Spatial Reference: 102003
(102003)
Units: esriMeters
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
Document Info:
Title: PrivateDomesticWells2010
Author:
Comments: <DIV STYLE="text-align:Left;font-size:12pt"><P><SPAN>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.</SPAN></P></DIV>
Subject: This map provides improved estimates of the dependence and spatial distribution of housing units reliant on private domestic by census block group and block.
Category:
Keywords: Wells
AntialiasingMode: None
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
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