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Sustainable Groundwater Management Act


These maps are PDF files and can be large in file size. Please allow several seconds for the larger maps to load. (broadband speed) and be viewed. The quality of these maps allow for considerable amount of detail when zooming in. It is recommended to use the latest version of the free Adobe Reader to avoid any other problems viewing the maps.


PDFChino Basin Legal Boundary and Legal Description

PDFDepth to Ground Water Contours

PDF2012 Chino Basin Groundwater Elevation Contours (30.2mb)

PDF2012 Chino Basin Agency Water Service Areas (1.97mb)

PDFChino Basin Hydrogeology - Areas Of Subsidence (1.7mb)

PDFChino Basin Groundwater Flow Direction & Relative Velocity (1.2mb)

PDFChino Basin Precip stations used in Model (6.13mb)

PDFRecharge Basins Locations (<1mb)

PDF2012 Chino Groundwater Basin Management Zones and Surrounding Basins (31.5mb)

PDF2012 Contamination Plume Map (33.2 mb)

PDFConverted Parcels and Eligible Parcels for Conversion and Voluntary Agreements - Whole Basin (6.89mb)

PDFConverted Parcels and Eligible Parcels for Conversion and Voluntary Agreements - Conversion Area 1 Only (5.89mb)

PDFMWD Agency Service Connection Map (1.7mb)

PDFMWD Member Agency Map (<1mb)

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Chino Basin Watermaster adheres to the highest professional standards in all of its data gathering and processing activities. However, Watermaster does not warrant the accuracy and usability of this data to third parties. Accordingly, the User of data and other information contained within this website agrees to protect, defend and hold harmless Watermaster and WEI, their officers, officials or employees from all claims, liabilities, expenses or damages of any nature, including attorneys fees, for any liabilities of any kind arising out of or in connection with the work, operation or activities of User, its agents, employees and subcontractors in the use of data or other information  obtained by  User  from  Watermaster’s website and/or FTP site.

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