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LONG-TERM DEBT (Tables) | 12 Months Ended
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Dec. 31, 2023
Long-Term Debt, Unclassified [Abstract] |
Schedule of long-term debt outstanding | As of December 31, 2023 and 2022, long-term debt outstanding was:
| Series |  | Interest Rate |  | Maturity Date |  | 2023 |  | 2022
First Mortgage Bonds | ZZZ |  | 2.870 | % |  | 2051 |  | $ | 130,000 |  |  | $ | 130,000 |
| 1 |  | 3.020 | % |  | 2061 |  | 150,000 |  |  | 150,000 |
| YYY |  | 4.170 | % |  | 2059 |  | 200,000 |  |  | 200,000 |
| WWW |  | 4.070 | % |  | 2049 |  | 100,000 |  |  | 100,000 |
| VVV |  | 3.400 | % |  | 2029 |  | 100,000 |  |  | 100,000 |
| TTT |  | 4.610 | % |  | 2056 |  | 10,000 |  |  | 10,000 |
| SSS |  | 4.410 | % |  | 2046 |  | 40,000 |  |  | 40,000 |
| QQQ |  | 3.330 | % |  | 2025 |  | 50,000 |  |  | 50,000 |
| RRR |  | 4.310 | % |  | 2045 |  | 50,000 |  |  | 50,000 |
| PPP |  | 5.500 | % |  | 2040 |  | 100,000 |  |  | 100,000 |
| AAA |  | 7.280 | % |  | 2025 |  | 20,000 |  | 20,000 |
| BBB |  | 6.770 | % |  | 2028 |  | 20,000 |  |  | 20,000 |
| CCC |  | 8.150 | % |  | 2030 |  | 20,000 |  |  | 20,000 |
| DDD |  | 7.130 | % |  | 2031 |  | 20,000 |  |  | 20,000 |
| EEE |  | 7.110 | % |  | 2032 |  | 20,000 |  |  | 20,000 |
| III |  | 5.540 | % |  | 2023 |  | — |  |  | 909 |
| OOO |  | 6.020 | % |  | 2031 |  | 20,000 |  |  | 20,000 |
Total First Mortgage Bonds |  |  |  |  |  |  | 1,050,000 |  |  | 1,050,909 |
California Department of Water Resources Loans |  |  | 1.30% - 1.69% |  | 2027 - 2039 |  | 4,195 |  |  | 4,515 |
Other long-term debt |  |  |  |  |  |  | 4,102 |  |  | 5,485 |
Unamortized debt issuance costs |  |  |  |  |  |  | (4,857) |  |  | (5,112) |
Total long-term debt, net of unamortized debt issuance costs |  |  |  |  |  |  | 1,053,440 |  |  | 1,055,797 |
Less current maturities of long-term debt, net |  |  |  |  |  |  | 672 |  |  | 3,310 |
Long-term debt, net |  |  |  |  |  |  | $ | 1,052,768 |  |  | $ | 1,052,487 |
Schedule of Maturities of Long-term Debt | Maturities of long-term debt as of December 31, 2023 are as follows:
Year Ending December 31, | Long-term debt*
2024 | $ | 377 |
2025 | 70,354 |
2026 | 357 |
2027 | 334 |
2028 | 20,318 |
Thereafter | 962,656 |
_______________________________________________________________________________ * Excludes maturities for finance lease obligations. See note 14 for maturities for finance lease obligations.

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