Title 10. Actions In Particular Cases · Chapter 7. Actions Relating to Groundwater Rights · Article 1. General Provisions · Enacted 2015 · no amendments on record · Last verified July 28, 2026
In one sentenceSection 830 states that Chapter 7 establishes methods for a comprehensive groundwater rights adjudication and lists the interpretive principles the chapter must be applied consistently with, including constitutional water-rights protection, efficiency, settlement, sustainability timelines, federal and tribal water rights, and due process for unexercised rights.
(a)This chapter establishes methods and procedures for a comprehensive adjudication.
(b)This chapter shall be applied and interpreted consistently with all of the following:
(1)Protecting water rights consistent with Section 2 of Article X of the California Constitution.
(2)Conducting a comprehensive adjudication in a manner that promotes efficiency, reduces unnecessary delays, and provides due process.
(3)Encouraging the compromise and settlement of comprehensive adjudications.
(4)Conducting a comprehensive adjudication in a manner that is consistent with the achievement of groundwater sustainability within the timeframes of the Sustainable Groundwater Management Act.
(5)Establishing procedures by which courts may conduct comprehensive determinations of all rights and priorities to groundwater in a basin.
(6)Providing for the conduct of a comprehensive adjudication consistent with Winters v. United States (1908) 207 U.S. 564, the McCarran Amendment (codified at 43 U.S.C. Sec.666), and any other federal laws regarding the determination of federal or tribal water rights, as applicable.
(7)Providing notice and due process sufficient to enable a court in a comprehensive adjudication conducted pursuant to this chapter to determine and establish the priority for unexercised water rights. The court may consider applying the principles established in In re Waters of Long Valley Creek Stream System (1979) 25 Cal.3d 339. Except as provided in this paragraph, this chapter shall not alter groundwater rights or the law concerning groundwater rights.
(c)The other provisions of this code apply to procedures in a comprehensive adjudication to the extent they do not conflict with the provisions of this chapter.
Plain-English Summary
Section 830 opens Chapter 7 by describing its purpose: establishing methods and procedures for a comprehensive adjudication of groundwater rights in a basin. A comprehensive adjudication is not an ordinary two-party lawsuit — it's a proceeding designed to determine, in one case, the competing rights of everyone who extracts or claims the right to extract groundwater from a shared basin, which can mean hundreds or thousands of parties.
Subdivision (b) lists seven principles the chapter must be interpreted consistently with. These include protecting water rights as required by the California Constitution, promoting efficiency and due process, encouraging settlement, aligning with the Sustainable Groundwater Management Act's timelines, following federal law on federal and tribal water rights, and providing enough notice and due process for a court to establish priority even for water rights that haven't yet been put to use. Subdivision (c) then makes the rest of the Code of Civil Procedure applicable to comprehensive adjudications to the extent it doesn't conflict with this chapter.
Read together, this section frames everything that follows — the notice rules in § 835, the intervention rules in § 837, the special master provisions in §§ 845 and 846, and the judgment provisions in §§ 850 through 852 — as machinery built specifically for resolving groundwater rights across an entire basin at once.
Frequently Asked Questions
What is a "comprehensive adjudication" under this chapter?
A court proceeding, described further in § 832, that comprehensively determines rights to extract groundwater in a basin — as opposed to an ordinary dispute between a small number of parties.
Does the ordinary Code of Civil Procedure still apply to these cases?
Yes. Section 830(c) says the rest of the code applies to the extent it doesn't conflict with this chapter's specific provisions.
Why does this section mention the Sustainable Groundwater Management Act?
Because subdivision (b)(4) requires the chapter to be applied in a way consistent with achieving groundwater sustainability within that Act's timeframes.
Does this chapter address tribal water rights?
Yes. Subdivision (b)(6) requires consistency with federal law on federal and tribal water rights, including the McCarran Amendment.
Amendment History
Added by Stats 2015 ch 672 (AB 1390),s 1, eff. 1/1/2016.
Source & verification. Section text is reproduced verbatim from
the Deering's California Codes Annotated / vLex. Enacted by the California Legislature.
Last verified July 28, 2026.
· Official source
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