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    • Amended Judgment - CB
      • Section 01: Declaration of Rights
      • Section 02: Appointment of Watermaster
      • Section 03: Physical Solution
      • Section 04: Storage
      • Section 05: Jurisdiction
      • Section 06: General Provisions
    • Amended Judgment - WCB
      • Section 01: Boundaries
      • Section 02: Definitions
      • Section 03: Rights
      • Section 04: Transferability
      • Section 05: Physical Sol.
      • Section 06: Exchange Pool
      • Section 07: Emergency
      • Section 08: Injunction
      • Section 09: Order
      • Section 10: Lost Rights
      • Section 11: Watermaster
      • Section 12: Jurisdiction
      • Section 13: Modifications
      • Section 14: Reservation
      • Section 15: Designees
      • Section 16: Intervention
      • Section 17: Successors
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Central and West Coast Basin Water Rights Calculator

Walnut Park Mutual: Administrative Year (AY): 2022-23


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Groundwater Rights AY 2022-23

Walnut Park Mutual | Central Basin | Alpha No. 5610
All values in acre-feet
Annual Rights
Total Rights Next Year
2673.35
Leased Flex
Leased No Flex
Leases Next Year
150.00
OYC
DCO 91
DCO 77
OYC Next Year
231.8
Storage (Current)
Convert to Storage
Net Storage
1077.91
DCO Next Year
204.64
Total Rights
Storage (Start AY)
1,077.91
Withdrawn (AY)
0.00 a.f.
Production to Date*
Rights Balance
Unused Rights
566.71

Historical LeasesAll values in acre-feet


Date To From Flex/No Flex Amount Start End
May 12, 2022
Walnut Park Mutual Water Company
Tract 180 Mutual Water Company
Lease With Flex
150.00
July 01, 2022
June 30, 2026
September 12, 2018
Walnut Park Mutual Water Company
Tract 180 Mutual Water Company
Lease With Flex
250.00
July 01, 2018
June 30, 2022
January 10, 2014
Walnut Park Mutual Water Company
Tract 180 Mutual Water Company
Lease With Flex
400.00
July 01, 2013
June 30, 2018
November 13, 2012
Walnut Park Mutual Water Company
Central Basin Municipal Water District
Lease With Flex
4.00
July 01, 2012
June 30, 2018
November 13, 2012
Walnut Park Mutual Water Company
Los Angeles, City of Dept of Water and Power
Lease With Flex
46.00
July 01, 2012
June 30, 2018
May 22, 2014
Tract 349 Mutual Water Company
Walnut Park Mutual Water Company
Lease With Flex
-75.00
July 01, 2013
June 30, 2014
April 14, 2014
Tract 349 Mutual Water Company
Walnut Park Mutual Water Company
Lease With Flex
-120.00
July 01, 2014
June 30, 2015
January 22, 2014
Tract 349 Mutual Water Company
Walnut Park Mutual Water Company
Lease With Flex
-100.00
July 01, 2013
June 30, 2014

Historical Sales All values in acre-feet


Date To From Type Amount
June 18, 2018
Walnut Park Mutual Water Company
S&M Mellano 1036 PACIFIC LLC
Annual Water Right
4.33
June 14, 2018
Walnut Park Mutual Water Company
Mellano, G et al
Annual Water Right
8.67
June 18, 2018
Walnut Park Mutual Water Company
S&M Mellano 1036 PACIFIC LLC
One-Year Carryover
6.67
June 14, 2018
Walnut Park Mutual Water Company
Mellano, G et al
One-Year Carryover
13.33

Storage All values in acre-feet


Date Type Account Amount
April 01, 2016
Storage
isa
497.00
June 01, 2018
Storage
isa
7.50
June 01, 2018
Storage
csa
363.10
June 01, 2019
Storage
csa
210.31

Wells All values in acre-feet


Recordation Number Owner Number WRD ID Well Depth AY Production
10200188Unknown218.77 a.f.
11200189Unknown208.21 a.f.
12203117Unknown185.31 a.f.
Recordation Number Owner Number WRD ID Well Depth AY Production

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Rights Calculator

Quick Links

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Forms

  • Carryover Conversion - Central Basin
  • Carryover Conversion - West Basin
  • Lease - Central Basin
  • Lease - West Basin
  • Sale - Central Basin
  • Sale - West Basin
  • Water Rights Worksheet (CB Updated Rule)
  • Water Rights Worksheet (WB)


Water Replenishment District

4040 Paramount Boulevard
Lakewood, CA 90712
Phone: 562.275.4300
Visit Website

2022-2023 Leases

Groundwater leases are temporary assignments of rights to other parties to produce groundwater in the Central and West Coast Basins. Two different types of leases are commonly used: Standard Leases and Leases with flex

For more information please visit our Lease Reports page.

To/From Type Date Amount
From: Tract 180 Mutual Water CompanyFlex2022-05-12150.00

2023-2024 Leases

Groundwater leases are temporary assignments of rights to other parties to produce groundwater in the Central and West Coast Basins. Two different types of leases are commonly used: Standard Leases and Leases with flex

For more information please visit our Lease Reports page.

To/From Type Date Amount
From: Tract 180 Mutual Water CompanyFlex2022-05-12150.00

2022-2023 Carryover

One-Year Carryover(OYC)
One-Year Carryover are unused pumping rights carried over from the previous year. In the Central Basin, rights holders are allowed to carryover unused rights up to 60% of their APA. In the West Coast Basin the amount is 100% of their Adjudicated Rights. The total amount of One-Year Carryover will be reduced if a party elects to do carryover conversion during the year.

Drought Carryover (DCO, DCO'77, DCO'91)
This type of carryover is only possible during years in which the Water Replenishment District declares a Water Emergency. Once accumulated, drought carryover does not expire and remains with a pumper until it is used or sold.

Read More >>

Type Amount
One-Year Carryover (OYC)251.80
Drought Carryover '91204.64

2022-2023 Water in Storage

Under certain circumstances, rights holders are allowed to convert one-year carryover(OYC) into stored water. Please refer to our Storage section for more information.

Account Amount
Individual Storage Account Capacity504.50
Community Storage Account Capacity1,513.50
Total Put Into Storage1,077.91
Withdrawn From Storage-0.00
Total Individual Storage504.50
Total Community Storage573.41
Total Storage1,077.91

2022-2023 Sales

To/From Type Date Amount

Unused Rights

Unused rights are rights owned in the current AY but were not pumped and not carried over to the next AY. In general, unused rights are not effected by carryover conversion unless a large amount OYC is converted and the lower limits of a pumpers' one-year carryover limit are increased by the amount of the Annual Pumping Right (in the Central Basin, the minimum carryover limit is 20 acre-feet or 20% of APA+Leases with Flex, whichever is greater). Usually, Unused rights can only be reduced by pumping, sales or leasing.

Non-Consumptive Rights

Unused rights are rights owned in the current AY but were not pumped and not carried over to the next AY. In general, unused rights are not effected by carryover conversion unless a large amount OYC is converted and the lower limits of a pumpers' one-year carryover limit are increased by the amount of the Annual Pumping Right (in the Central Basin, the minimum carryover limit is 20 acre-feet or 20% of APA+Leases with Flex, whichever is greater). Usually, Unused rights can only be reduced by pumping, sales or leasing.

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Wells

Converting Carryover to Storage

If a party has one-year carryover (OYC), they may choose to convert all or part of that carryover to storage. Parties who own water rights (an annual pumping allocation in the Central Basin or an annual right in the West Coast basin) can transfer one-year carryover into their individual storage account. If the individual storage account is full, they may use their community storage if space is available. Drought carryover (DCO) is not eligible for conversion. Please see the Storage section for more information.

Storage Accounts for Walnut Park Mutual Water Company Amount
Individual Storage Account Capacity504.50
Community Storage Account Capacity1,513.50
Total Put Into Storage1,077.91
Withdrawn From Storage-0.00
Total Individual Storage504.50
Total Community Storage573.41
Total Storage1,077.91

Production to Date

If a party has one-year carryover (OYC), they may choose to convert all or part of that carryover to storage. Parties who own water rights (an annual pumping allocation in the Central Basin or an annual right in the West Coast basin) can transfer one-year carryover into their individual storage account. If the individual storage account is full, they may use their community storage if space is available. Drought carryover (DCO) is not eligible for conversion. Please see the Storage section for more information.



Production Amount
Total Production 612.29
Storage Withdraws -0.00
Net Production (Used to calculate next year's OYC) 612.29