In May 2017, the Fifth Appellate District published a decision addressing preclusion, which is rarely a topic in CEQA litigation.  On demurrer, the Kern County Superior Court found that a CEQA petition was barred by res judicata in light of a prior judgment entered in Alameda County (the “Alameda Action”).  In Association of Irritated Residents v. Department of Conservation (2017) 11 Cal.App.5th 1202, the Fifth District reversed, and it also addressed the issue of collateral estoppel in the context of a motion to dismiss the appeal.…