CEQA requires the identification of each “significant effect on the environment” resulting from the action and ways to mitigate each significant effect. If the action may have a significant effect on any environmental resource, then an EIR must be prepared. Each and every significant effect on the environment must be disclosed in the EIR and mitigated if feasible. In addition, the CEQA Guidelines list a number of mandatory findings of significance, which would also require the preparation of an EIR