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

Watermaster Information

Central Basin 4-11.04 COASTAL PLAIN OF LOS ANGELES - CENTRAL
Central and West Basin Water Replenishment District, etc., Plaintiff, vs. Charles E. Adams, et al., Defendant 786,656 08/27/1965
WRD - Central Basin Watermaster Administrative Body 4040 Paramount Boulevard Lakewood 90712
watermaster@wrd.org (562) 921-5521
Brian Partington 4040 Paramount Boulevard Lakewood 90712
bpartington@wrd.org (562) 921-5521
Central Basin Third Amended Judgment_Signed Original.PDF (4.4MB)
CentralBasin_LegalDesc.zip (9.7kB)
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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?
No
Comment(s)
The water level data submitted under CASGEM provides sufficient coverage within the Central Basin. Additional details provided in final plan submitted on October 25, 2011. 
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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
2024 ESR (Tables A, B, C). 
Uncertainty
Low 
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 07/01/2022 To 06/30/2023 
Total Water Use (AF)
Method used to determine
22-23 Watermaster Report (Summary of Pertinent Data listed on Page 1). 
Uncertainty
Low 
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
Combination of water level data, MODFLOW, and GIS (See ESR page 16). Reported value is for both Central Basin and West Coast Basin. 
Uncertainty
Medium 
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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.
Please submit additional reports or documents.