§ 847.Issuance of Preliminary Injunction
Title 10. Actions In Particular Cases · Chapter 7. Actions Relating to Groundwater Rights · Article 13. Preliminary Injunction · Enacted 2015 · no amendments on record · Last verified July 28, 2026
Full Text of § 847
Plain-English Summary
A comprehensive adjudication can take years to reach final judgment, but a severely overdrafted basin may not be able to wait that long for relief. Subdivision (a) lets the court issue a preliminary injunction, after notice and a hearing, on a showing that the basin is in a condition of long-term overdraft as defined in § 832. Subdivision (b) says that Department of Water Resources bulletins and reports, along with a special master's report finding overdraft, are admissible evidence of that condition, without limiting other relevant evidence.
Subdivision (c) lists what the injunction may include: a moratorium on new or increased appropriations, limits or reductions on diversion or extraction, an allocation among the parties of extraction amounts allowed pending the adjudication, and procedures for voluntary transfers. Subdivision (d) makes the injunction mandatory, rather than discretionary, once three conditions are met: the basin is in long-term overdraft, it's been designated a probationary basin or missed Water Code planning deadlines, and no interim plan is in effect under the Water Code.
Subdivision (e) lets the court schedule phased reductions over time if reasonably necessary to reach sustainability within statutory timelines. Subdivision (f) protects the eventual final judgment: the preliminary injunction's terms don't determine the rights decided there. Subdivision (g) waives any bond or undertaking requirement for the injunction, and subdivision (h) lets the court appoint a watermaster to oversee enforcement.
Frequently Asked Questions
What must be shown before a court issues a preliminary injunction under this section?
A showing, after notice and hearing, that the basin is in a condition of long-term overdraft as defined in § 832.
Is the court ever required to issue this preliminary injunction?
Yes. Section 847(d) requires it once the basin is in long-term overdraft, has been designated probationary or missed planning deadlines, and lacks an interim plan under the Water Code.
What can the preliminary injunction require?
A moratorium on new appropriations, limits or reductions on extraction, an interim allocation among parties, or procedures for voluntary transfers.
Does a bond need to be posted for this injunction?
No. Section 847(g) waives any bond or undertaking requirement.
Do the injunction's terms decide the final water rights in the case?
No. Section 847(f) says the terms of a preliminary injunction don't determine the rights decided in the final judgment.
Amendment History
Added by Stats 2015 ch 672 (AB 1390),s 1, eff. 1/1/2016.