Water Code § 13228.15

13228.15.

The members of a regional board, or their designees, with respect to matters within the regional board’s jurisdiction, may carry out prehearing conferences to address any of the matters described in subdivision (b) of Section 11511.5 of the Government Code. No party who appears at a prehearing conference is precluded from appearing before the regional board at any subsequent hearing relating to the matter.