LADWP’s water rates are made up of base rates and pass-through adjustment factors, also known as water rate adjustment factors.
The water pass-through adjustment factors fluctuate up or down periodically, in accordance with the water rate ordinance, with many of the expenditures for cost recovery approved by LADWP’s Board of Water and Power Commissioners. For information on the previous two year’s approved expenditures for the water pass-through adjustment factors, go to Approved Expenditures for the Water and Power Pass-through Adjustment Factors.
Adjustment Factors - Schedule A
|
Month |
WSCA |
WQIA | BRRTA | OVRA | LISA | WIA | WESA | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Tier 1 | Tier 2 | Tier 3 | Tier 4 | |||||||
|
2025 |
||||||||||
| January - June | $2.591 | $4.603 | $4.603 | $4.603 | $2.181 | $1.814 | $0.550 | $0.000 | $2.335 | $0.043 |
| July - December | ||||||||||
|
2024 |
||||||||||
| January - June | $2.455 | $4.324 | $4.324 | $4.324 | $2.104 | $1.123 | $0.502 | $0.000 | $1.088 | $0.041 |
| July - December | $2.484 | $4.306 | $4.306 | $4.306 | $2.036 | $1.123 | $0.559 | $0.000 | $2.335 | $0.041 |
Adjustment Factors - Schedule B
|
Month |
WSCA |
WQIA | BRRTA | OVRA | LISA | WIA | WESA | |
|---|---|---|---|---|---|---|---|---|
| Tier 1 | Tier 2 | |||||||
|
2025 |
||||||||
| January - June | $2.591 | $4.603 | $2.181 | $0.773 | $0.550 | $0.000 | $2.335 | $0.043 |
| July - December | ||||||||
|
2024 |
||||||||
| January - June | $2.455 | $4.324 | $2.104 | $0.663 | $0.502 | $0.000 | $1.088 | $0.041 |
| July - December | $2.484 | $4.306 | $2.036 | $0.663 | $0.559 | $0.000 | $2.335 | $0.041 |
Adjustment Factors - Schedule C, E, F
|
Month |
WSCA |
WQIA | BRRTA | OVRA | LISA | WIA | WESA | |
|---|---|---|---|---|---|---|---|---|
| Tier 1 | Tier 2 | |||||||
|
2025 |
||||||||
| January - June | $2.591 | $4.603 | $2.181 | $0.110 | $0.550 | $0.000 | $2.335 | $0.043 |
| July - December | ||||||||
|
2024 |
||||||||
| January - June | $2.455 | $4.324 | $2.104 | ($0.156) | $0.502 | $0.000 | $1.088 | $0.041 |
| July - December | $2.484 | $4.306 | $2.036 | ($0.156) | $0.559 | $0.000 | $2.335 | $0.041 |
Water Supply Cost Adjustment (WSCA) - recovers Los Angeles Aqueduct, purchased water, groundwater, recycled water, water conservation, and any additional water supply source expenses.
Water Quality Improvement Adjustment (WQIA) - recovers water quality related expense in order to equalize water quality throughout the City, to meet State and Federal water quality standards, and to provide security for water supply, storage, and conveyance infrastructure and related facilities.
Base Rate Revenue Target Adjustment (BRRTA) - recovers any shortage in revenue from Base Rates or credits back any excess collection of revenue from Base Rates due to variation in water sales from projections.
Owens Valley Regulatory Adjustment (OVRA) - recovers expense for the Owens Lake Dust Mitigation Program, the Lower Owens River Project, and the Owens Lake Master Project.
Low-Income Subsidy Adjustment (LISA) - recovers the cost of credits provided to lifeline and low- income customers. LADWP discontinued LISA charges effective May 5, 2023 and stopped providing the subsidy effective July 20, 2023.
Water Infrastructure Adjustment (WIA) - recovers capital costs associated specifically with infrastructure investments to maintain and improve the reliability of the water distribution system.
Water Expense Stabilization Adjustment (WESA) - recovers any shortage between the target for the Water System Expense Stabilization Fund and the fund’s balance in order to stabilize rates in the event of unforeseen events impacting water service delivery and also the expense for legal and court costs or any judgment or settlement.