Central and West Coast Basin Water Rights Calculator
Walnut Park Mutual: Administrative Year (AY): 2021-22
Groundwater Rights AY 2021-22
Walnut Park Mutual | Central Basin | Alpha No. 5610
All values in acre-feetTotal Rights Next Year
2543.35
2543.35
Total Rights
Storage (Start AY)
1,077.91
1,077.91
Withdrawn (AY)
0.00 a.f.
0.00 a.f.
Historical Leases All values in acre-feet
| Date | To | From | Flex/No Flex | Amount | Start | End |
|---|---|---|---|---|---|---|
2018-09-12 | Walnut Park Mutual Water Company | Tract 180 Mutual Water Company | Lease With Flex | 250.00 | 2018-07-01 | 2022-06-30 |
2014-01-10 | Walnut Park Mutual Water Company | Tract 180 Mutual Water Company | Lease With Flex | 400.00 | 2013-07-01 | 2018-06-30 |
2012-11-13 | Walnut Park Mutual Water Company | Central Basin Municipal Water District | Lease With Flex | 4.00 | 2012-07-01 | 2018-06-30 |
2012-11-13 | Walnut Park Mutual Water Company | Los Angeles, City of Dept of Water and Power | Lease With Flex | 46.00 | 2012-07-01 | 2018-06-30 |
2014-05-22 | Tract 349 Mutual Water Company | Walnut Park Mutual Water Company | Lease With Flex | -75.00 | 2013-07-01 | 2014-06-30 |
2014-04-14 | Tract 349 Mutual Water Company | Walnut Park Mutual Water Company | Lease With Flex | -120.00 | 2014-07-01 | 2015-06-30 |
2014-01-22 | Tract 349 Mutual Water Company | Walnut Park Mutual Water Company | Lease With Flex | -100.00 | 2013-07-01 | 2014-06-30 |
Historical Sales All values in acre-feet
| Date | To | From | Type | Amount |
|---|---|---|---|---|
2018-06-18 | Walnut Park Mutual Water Company | S&M Mellano 1036 PACIFIC LLC | Annual Water Right | 4.33 |
2018-06-14 | Walnut Park Mutual Water Company | Mellano, G et al | Annual Water Right | 8.67 |
2018-06-18 | Walnut Park Mutual Water Company | S&M Mellano 1036 PACIFIC LLC | Normal Carryover | 6.67 |
2018-06-14 | Walnut Park Mutual Water Company | Mellano, G et al | Normal Carryover | 13.33 |
Storage All values in acre-feet
| Date | Type | Account | Amount |
|---|---|---|---|
2016-04-01 | Storage | isa | 497.00 |
2018-06-01 | Storage | isa | 7.50 |
2018-06-01 | Storage | csa | 363.10 |
2019-06-01 | Storage | csa | 210.31 |
2021-2022 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.
For more information please visit our Lease Reports page.
| To/From | Type | Date | Amount |
|---|---|---|---|
| From: Tract 180 Mutual Water Company | Flex | 2018-09-12 | 250.00 |
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.
For more information please visit our Lease Reports page.
| There are no leases for this FY. |
2021-2022 Carryover
Normal Carryover (NCO)
Normal 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 normal 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 >>
Normal 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 normal 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 |
|---|---|
| Normal Carryover (NCO) | 251.80 |
| Drought Carryover '91 | 204.64 |
2021-2022 Water in Storage
Under certain circumstances, rights holders are allowed to convert normal carryover (NCO) into stored water. Please refer to our Storage section for more information.
| Account | Amount |
|---|---|
| Individual Storage Account Capacity | 504.50 |
| Community Storage Account Capacity | 1,513.50 |
| Total Put Into Storage | 1,077.91 |
| Withdrawn From Storage | -0.00 |
| Total Individaul Storage | 504.50 |
| Total Community Storage | 573.41 |
| Total Storage | 1,077.91 |
2021-2022 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 NCO is converted and the lower limits of a pumpers' normal 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 NCO is converted and the lower limits of a pumpers' normal 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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Converting Carryover to Storage
If a party has normal carryover (NCO), 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 normal 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 Capacity | 504.50 |
| Community Storage Account Capacity | 1,513.50 |
| Total Put Into Storage | 1,077.91 |
| Withdrawn From Storage | -0.00 |
| Total Individaul Storage | 504.50 |
| Total Community Storage | 573.41 |
| Total Storage | 1,077.91 |
Production to Date
The figure shown for Production to Date is the total amount of water produced for the administrative year. The amount of production used to calculate the normal carryover for the next year may be reduced if a party withdraws water from storage.
| Production | Amount |
|---|---|
| Total Production | 368.86 |
| Storage Withdraws | -0.00 |
| Net Production (Used to calculate next year's NCO) | 368.86 |