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The purpose of this shapefile is to provide an accurate boundary reference for the purpose of mapping and data analysis. Boundary of the combined adjudicated Central and West Coast groundwater basins. Adjudication is a form of groundwater management in California through the courts. When groundwater resources do not meet water demands in an area, landowners may turn to the courts to determine how much groundwater can be rightfully extracted by each overlying landowner or appropriator. The court typically appoints a Watermaster to administer the judgment and to periodically report to the court. As of 2013, there were 24 adjudicated groundwater basins in California, with the majority of the adjudications located in Southern California in the South Coast hydrologic region. The majority of groundwater rights adjudications in California imposes extraction limits and/or initiates management actions in the event of declining groundwater levels or water quality degradation. It should be noted that the primary objective of adjudication is to provide a proportionate share of the available groundwater to the users within the basin so it can be extracted without having adverse effects to existing groundwater supplies. Environmental concerns were not considered when most of the judgments were written. These data were developed using the best available data for the California Water Plan Update 2013, however may contain errors.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Combined administrative boundary of the adjudicated CB and WCB water basins: Polygon boundary of the Central Basin based on the legal description presented in the October 18, 1965 Central Basin Judgment. </SPAN></P><P><SPAN>Polygon boundary of the West Coast Basin is based on the Adjudicated West Coast Basin Boundary legal description presented in the Judgment entered August 22, 1961, in Book 4291, Page 62 in the Superior Court of the State of California in and for the County of Los Angeles: https://gis.data.ca.gov/datasets/3c1cfb54ea6443549acbd0eef960055d_0/explore?location=36.272574%2C-119.270000%2C7.00</SPAN></P><P><SPAN /></P></DIV></DIV></DIV>
California Department of Water Resources (DWR) Groundwater Information Center
Central Basin
West Coast Basin
boundary
water
central
basin
groundwater
groundwater basin
adjudicated
polygon
admin
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN><SPAN>GIS Data and Map Disclaimer:</SPAN></SPAN></P><P><SPAN>The enclosed data/maps are designed to provide information about physiographic conditions of the Central and West Coast groundwater basins, and has been prepared for general planning and informational purposes only. The information is provided on an "as-is" basis, and the Water Replenishment District of Southern California (WRD) makes no warranty as to the content, accuracy or completeness of any of the data provided herein. Further, the WRD, its agents, and employees assume no liability for any errors, omissions, or inaccuracies in the information provided regardless of how caused, and assume no liability nor responsibility to any person or entity with respect to any loss or damages in connection with or rising from the information contained on the data/maps. The user of the data/maps acknowledges unconditional acceptance of the above disclaimer.</SPAN></P></DIV></DIV></DIV>
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