Published Maps

Several of the most frequently requested maps have been provided for your convenience below.


Chino Basin Groundwater Basin
Chino Basin Groundwater Basin

The physical area of the Chino Basin is divided into five Maximum Benefit Management Zones. This map shows the extent of each zone.


Chino Basin Legal Boundary
Chino Basin Legal Boundary

Shows the extent of the Chino Basin adjudication. The boundary is derived from the legal description which can be found here.


Chino Basin Recharge Basins
Chino Basin Recharge Basins

Found in the 2020 Maximum Benefit Annual Report, this map shows the location of percolation basins within the Chino Basin and the type of water each is able to receive.


Converted Parcels and Eligible Parcels for Conversion and Voluntary Agreements - Conversion Area 1 Only
Converted Parcels and Eligible Parcels for Conversion and Voluntary Agreements - Conversion Area 1 Only

Status of Land Use Conversion and Voluntary Agreement as of end of fiscal year 2020/2021 within Conversion Area 1.


Converted Parcels and Eligible Parcels for Conversion and Voluntary Agreements - Whole Basin
Converted Parcels and Eligible Parcels for Conversion and Voluntary Agreements - Whole Basin

Status of Land Use Conversion and Voluntary Agreements as of end of fiscal year 2020/2021 throughout the entire Chino Basin.


Delineation of Groundwater Contamination Plumes and Point Sources of Concern
Delineation of Groundwater Contamination Plumes and Point Sources of Concern

Extracted from the 2020 State of the Basin Report, this map delineates various contamination plumes within the Chino Basin.


Depth to Groundwater Contours -- Layer 1
Depth to Groundwater Contours -- Layer 1

Unlike the groundwater elevation contour maps, this map illustrates the distance between the ground surface and groundwater. This map is from the 2017 Model Update and Required Demonstrations report.


Groundwater Elevation Contours -- Layer 1
Groundwater Elevation Contours -- Layer 1

An illustration of the groundwater elevation and the correlated directional flow. Also found in the 2017 Model Update and Required Demonstrations report.


Groundwater-Elevation Contours for Spring 2020
Groundwater-Elevation Contours for Spring 2020

Contour map of the groundwater elevation above sea level. This map can also be found in the 2020 State of the Basin Report.


Historical Land Surface Deformation in Management Zone 1
Historical Land Surface Deformation in Management Zone 1

Extracted from the 2020 State of the Basin Report, this map shows the area of land subsidence in the southwestern part of Management Zone 1.


Metropolitan
Metropolitan's Member Agencies

Map from the Metropolitan Water District exhibiting all of their member agencies.


Water Distribution System Schematic Diagram
Water Distribution System Schematic Diagram

An illustration from the Metropolitan Water District depicting their pipelines and service connections throughout their service area.


Water Service Areas
Water Service Areas

Major municipalities of the Chino Basin, showing which city or water agency is responsible for providing water to residents and businesses within the area they cover. Extracted from the 2020 State of the Basin Report.