Cal. Water Code § 10737.9
(a)
(1) Upon receiving notice that an adjudication has commenced in its basin, a groundwater sustainability agency shall host a public meeting to explain the adjudication process and the status of the adjudication to water users within the basin and the public.
A groundwater sustainability agency may invite the state board or the department to send a representative to the meeting in order to help explain the adjudication process.