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Chino Basin Annual Report  10/01/2022 - 09/30/2023

Watermaster Information

Chino Basin 8-02.01 UPPER SANTA ANA VALLEY - CHINO
Chino Basin Municipal Water District v. City of Chino et al., San Bernardino Superior Court 16437 01/27/1978
Chino Basin Watermaster 9641 San Bernardino Road Rancho Cucamonga 91730
info@cbwm.org 909-484-3888 909-484-3890
CBWM Documents.zip (7.3MB)
ChinoBasinAdj_UTM83.zip (7.1kB)
http://www.cbwm.org
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A

Groundwater Level

Is water level data submitted to the CASGEM Program?
Yes
Does this watermaster collect or receive additional groundwater levels?
Yes
Does this watermaster measure groundwater levels?
Yes
Comment(s)
 
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B

Groundwater Use

Reporting Period
From 10/01/2022 To 09/30/2023 
Total Annual Groundwater Extraction (AF)
Method used to determine extraction (if available):
  Volume (AF) Explanation Uncertainty
Groundwater Extraction by water use sector (if available):
Sector Volume (AF) Explanation Uncertainty
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C

Surface Water Use

Reporting Period
From 10/01/2022 To 09/30/2023 
Surface Water Supply (AF)
Method used to determine
The value reported represents total surface water used for direct consumption and for groundwater recharge. Imported water and recycled water deliveries to recharge basins are metered and recorded daily. Storm water and urban runoff recharge volumes are measured by stage sensors in the recharge basins. Imported water, recycled water, and local surface water amounts used for direct consumption are provided by the individual parties in the Chino Basin. For parties that have service areas not entirely within the Chino Basin adjudicated boundary, the proportion of the surface water supply used for consumption inside the Chino Basin adjudicated boundary is not quantified. The portion of the reported volumes that were used for recharge, were recharged entirely within the Chino Basin adjudicated boundary. 
Uncertainty
 
Water available for recharge or in-lieu use by source type (if available):
  Volume (AF) Explanation Uncertainty
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D

Total Water Use

Reporting Period
From 10/01/2022 To 09/30/2023 
Total Water Use (AF)
Method used to determine
Total water use data includes water used for direct consumption and for groundwater recharge. Data were obtained from Watermaster records, and/or collected from the parties in the Chino Basin. The total water use represents the sum of total water use by parties to the Chino Basin Judgment. Many of the Chino Basin appropriative pool parties have service areas that extend outside the Chino Basin adjudicated boundary. The proportion of the total water use for direct consumption that is used inside the Chino Basin adjudicated boundary is not quantified by Watermaster. Total water use is reported using the pre-defined categories by the DWR under the Water use met by source type below, and is apportioned as follows: Groundwater is groundwater produced from the Chino Basin and other basins for direct use; Surface water is imported State Water Project water and native surface water used for direct use; Recycled or reused water is recycled water used for direct use; and Other is water used for groundwater recharge which includes storm water and urban runoff, imported State Water Project water, and recycled water. 
Uncertainty
 
Total water Use by water use sector (if available)
  Volume (AF)
Water use met by source type
Type Volume (AF)
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E

Change in GW Storage

Reporting Period
From 10/01/2022 To 09/30/2023 
Change in storage (AF)
Method used to determine
The change in storage over the period of October 1, 2022 through September 30, 2023 was estimated using the Chino Basin groundwater model.  
Uncertainty
 
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F

Required Documents

Reporting Period
From 07/01/2022 To 06/30/2023 
Please submit an electronic (PDF preferred) copy of your annual report.
46th Annual Report_Final.pdf (5.3MB) Uploaded on 03/28/2024 at 09:01PM
 
Please submit additional reports or documents.
TM_CBWM_SGMA Rpt WY2023_20240307.pdf (101.5kB) Uploaded on 03/28/2024 at 09:01PM