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Service Description: <p>The aquifer risk map is being developed to fulfill
requirements of SB-200 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 risk map is to be made available to the public and
is to be updated annually starting January 1, 2021. The Fund Expenditure Plan
states the risk map will be used by Water Boards staff to help prioritize areas
for available SAFER funding..</p><p>Methodology for the draft aquifer risk map <a href='https://gispublic.waterboards.ca.gov/portal/home/item.html?id=5f94cf5ca2a04f66a3dcfab29cf6c764' target='_blank'>available for download</a>.<br /></p><p>This layer shows declustered water quality data for arsenic,
nitrate, 1,2,3-trichloropropane, per square mile section that was used to
create the aquifer risk map required by SB-200. The intent of the aquifer risk
map is to help prioritize areas where domestic well users and state small water
systems may be accessing groundwater that does not meet primary drinking water
standards (maximum contaminant level or MCL) and will be updated annually
starting January 1, 2021. </p>
<p>The section water quality data is based on depth-filtered
water quality results from public and domestic supply wells, collected
following a similar methodology as the <a href='https://gispublic.waterboards.ca.gov/portal/home/item.html?id=70feb9f4b00f4b3384a9a0bf89f9f18a'>Domestic
Well Needs Assessment White Paper</a>. This layer contains the long-term
average (20 years) as well as the count of recent results (within 2 years)
above the MCL, between 80% - 100% of the MCL, and below 80% of the MCL for each
square mile section. </p>
Map Name: Individual Chemicals
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Service Item Id: 7d53db6304954c77833c196353934d8d
Copyright Text: Created by Emily Houlihan (Emily.Houlihan@waterboards.ca.gov) and Dori Bellan (Dorian.Bellan@waterboards.ca.gov), geologists, GAMA Program.
Spatial Reference:
102100
(3857)
LatestVCSWkid(0)
Single Fused Map Cache: false
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Spatial Reference: 102100
(3857)
LatestVCSWkid(0)
Full Extent:
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Spatial Reference: 102100
(3857)
LatestVCSWkid(0)
Units: esriMeters
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
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Title: Map
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Keywords: SB200,GAMA,SWRCB,groundwater
AntialiasingMode: Fast
TextAntialiasingMode: Force
Supports Dynamic Layers: true
MaxRecordCount: 160000
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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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