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Regulatory Assets and Liabilities
6 Months Ended
Jun. 30, 2022
Regulated Operations [Abstract]  
Regulatory Assets and Liabilities Regulatory Assets and Liabilities
Regulatory assets and liabilities were comprised of the following as of June 30, 2022 and December 31, 2021:
 Recovery PeriodJune 30, 2022December 31, 2021
Regulatory Assets  
Pension and retiree group healthIndefinitely$17,278 $17,607 
Property-related temporary differences (tax benefits flowed through to customers)Indefinitely130,565 130,565 
Other accrued benefitsIndefinitely24,656 23,280 
Net WRAM and MCBA long-term accounts receivable
1 - 2 years
37,581 29,789 
Asset retirement obligations, netIndefinitely24,005 22,935 
Interim rates memorandum account (IRMA) long-term accounts receivable
1 - 3 years
7,212 9,032 
Tank coating10 years14,986 13,680 
Recoverable property lossesVarious3,489 3,843 
PCBA1 year20,040 21,500 
Other components of net periodic benefit costIndefinitely623 3,342 
General district balancing account receivable1 year358 568 
Customer assistance program (CAP) and Rate support fund (RSF) accounts receivable1 year3,262 5,991 
Other regulatory assetsVarious3,570 3,560 
Total Regulatory Assets$287,625 $285,692 
Regulatory Liabilities  
Future tax benefits due to customers$134,378 $135,027 
Retiree group health27,294 27,294 
HCBA12,713 9,687 
CEBA7,684 7,206 
Net WRAM and MCBA long-term payable479 143 
Other regulatory liabilities1,039 1,071 
Total Regulatory Liabilities$183,587 $180,428 
Short-term regulatory assets and liabilities are excluded from the above table.
The short-term regulatory assets were $56.6 million as of June 30, 2022 and $78.6 million as of December 31, 2021. The short-term regulatory assets as of June 30, 2022 and December 31, 2021 primarily consist of net WRAM and MCBA, IRMA, and PCBA receivables.
The short-term portions of regulatory liabilities were $9.6 million as of June 30, 2022 and $17.5 million as of December 31, 2021. The short-term regulatory liabilities as of June 30, 2022 primarily consist of TCJA liabilities. As of December 31, 2021, short-term regulatory liabilities primarily consist of TCJA and HCBA liabilities.