Cal. Wat. Code § 36062
A district may bring an action pursuant to Chapter 9 (commencing with Section 860) of Title 10 of Part 2 of the Code of Civil Procedure or pursuant to Chapter 2 (commencing with Section 1084) of Title 1 of Part 3 of the Code of Civil Procedure to validate the issuance of any or all of the remaining bonds which were authorized by the voters at any given election, if the district's board of directors has adopted a resolution authorizing the issuance of the remaining bonds of the authorization, inclusive of any refunding bonds that might be issued therefor under Section 36063, in such series and at such times as the board may, in its discretion, determine, and at the interest rates as may be authorized by law at the time of issuance, including, but not limited to, Article 8 (commencing with Section 53540) of Chapter 3 of Part 1 of Division 2 of Title 5 of the Government Code. The terms of a judgment obtained in a proceeding hereunder may include a ruling that the validation shall automatically incorporate any change made in the interest rate set forth in Article 8 (commencing with Section 53540) of Part 1 of Division 2 of Title 5 of the Government Code by a later-enacted statute. Any action commenced under this section may be filed either in a superior court or in a district court of appeals.
Ca. Water Code § 36062