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Service Description: This is the map image layer. The feature layer is available here.
The Aquifer Risk Map is
developed to fulfill requirements of SB-200 (Monning, 2019) and is intended to
help prioritize areas where domestic wells and state small water systems may be
accessing groundwater that does not meet primary drinking water standards
(maximum contaminant level or MCL). In accordance with SB-200, the map is made
available to the public and updated annually starting January 1, 2021. This
layer is part of the 2023 Aquifer Risk Map. The Fund Expenditure Plan states
the risk map will be used by Water Boards staff to help prioritize areas for
available SAFER funding.
This layer contains summarized water quality
risk per square mile section for five individual contaminants (nitrate,
arsenic, 1,2,3-trichloropropane, hexavalent chromium, and uranium).
The water quality risk is based on
depth-filtered, de-clustered water quality results from public and domestic
supply wells. The methodology used to determine water quality risk is outlined
[here]. To provide comments or feedback on this map, please email SAFER@waterboards.ca.gov or Emily.Houlihan@Waterboards.ca.gov.
Map Name: Individual Contaminants 2023 ARM
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Description: The Aquifer Risk Map is developed to fulfill requirements of SB-200 (Monning, 2019) and is intended to help prioritize areas where domestic wells and state small water systems may be accessing groundwater that does not meet primary drinking water standards (maximum contaminant level or MCL). In accordance with SB-200, the map is made available to the public and updated annually starting January 1, 2021. This layer is part of the 2023 Aquifer Risk Map. The Fund Expenditure Plan states the risk map will be used by Water Boards staff to help prioritize areas for available SAFER funding.
This layer contains summarized water quality risk per square mile section for five individual contaminants (nitrate, arsenic, 1,2,3-trichloropropane, hexavalent chromium, and uranium).
The water quality risk is based on depth-filtered, de-clustered water quality results from public and domestic supply wells. To provide comments or feedback on this map, please email SAFER@waterboards.ca.gov or Emily.Houlihan@Waterboards.ca.gov.
Service Item Id: 85ae1b1716b24fc0bfe0152615620178
Copyright Text:
Spatial Reference:
102100
(3857)
Single Fused Map Cache: false
Initial Extent:
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YMin: 4301688.1987055
XMax: -1.3236359276607579E7
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Spatial Reference: 102100
(3857)
Full Extent:
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YMin: 3833637.163900003
XMax: -1.270505742E7
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Spatial Reference: 102100
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Units: esriMeters
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
Document Info:
Title: Aquifer Risk Map 2023 Individual Contaminants
Author:
Comments: <DIV STYLE="text-align:Left;"><P STYLE="font-size:16ptmargin:0 0 0 0;"><SPAN><SPAN>The Aquifer Risk Map is developed to fulfill requirements of SB-200 (Monning, 2019) and is intended to help prioritize areas where domestic wells and state small water systems may be accessing groundwater that does not meet primary drinking water standards (maximum contaminant level or MCL). In accordance with SB-200, the map is made available to the public and updated annually starting January 1, 2021. This layer is part of the 2023 Aquifer Risk Map. The Fund Expenditure Plan states the risk map will be used by Water Boards staff to help prioritize areas for available SAFER funding.</SPAN></SPAN></P><P /><P STYLE="font-size:16ptmargin:0 0 0 0;"><SPAN>This layer contains summarized water quality risk per square mile section for five individual contaminants (nitrate, arsenic, 1,2,3-trichloropropane, hexavalent chromium, and uranium). </SPAN></P><P /><P STYLE="font-size:16ptmargin:0 0 0 0;"><SPAN>The water quality risk is based on depth-filtered, de-clustered water quality results from public and domestic supply wells. To provide comments or feedback on this map, please email </SPAN><A href="mailto:SAFER@waterboards.ca.gov" STYLE="text-decoration:underline;"><SPAN STYLE="text-decoration:underline;"><SPAN>SAFER@waterboards.ca.gov</SPAN></SPAN></A><SPAN><SPAN> or </SPAN></SPAN><A href="mailto:Emily.Houlihan@Waterboards.ca.gov" STYLE="text-decoration:underline;"><SPAN STYLE="text-decoration:underline;"><SPAN>Emily.Houlihan@Waterboards.ca.gov</SPAN></SPAN></A><SPAN><SPAN>.</SPAN></SPAN></P><DIV><P><SPAN /></P></DIV></DIV>
Subject: Water quality risk per square mile section for five individual contaminants. For use in the 2023 Aquifer Risk Map.
Category:
Keywords: GAMA,SB200,SAFER,SWRCB,groundwater,water quality,domestic wells,state small water systems
AntialiasingMode: Fast
TextAntialiasingMode: Force
Supports Dynamic Layers: true
MaxRecordCount: 200000
MaxImageHeight: 4096
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Supported Query Formats: JSON, geoJSON, PBF
Supports Query Data Elements: true
Min Scale: 0
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Supports Datum Transformation: true
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