Reference Boundaries
收藏California State Geoportal2026-03-28 收录
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https://gis.data.ca.gov/maps/b36f8d3b978a41b2b0e44506c8d2c9fa
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<p><font size='3'>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.</font></p><p><font size='3'>This layer contains several reference boundaries, including:</font></p><p></p><ul><li><font size='3'>California County boundaries</font></li><li><font size='3'>Census Tract boundaries with Disadvantaged Community Status (based on Median Household Income)</font></li><li><font size='3'>California Assembly District boundaries</font></li><li><font size='3'>California Senate District boundaries</font></li><li><font size='3'>California Regional Water Board boundaries</font></li><li><span style='font-size:medium;'>CV-SALTS priority groundwater basins</span></li><li><span style='font-size:medium;'>Groundwater Sustainability
Agency boundaries</span></li><li><span style='font-size:medium;'>Groundwater Unit boundaries</span></li></ul><p></p><p><br /></p>
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California State Geoportal
