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401 & Buffer Permitting Unit
If a proposed development project has explored all practical alternatives for avoiding and minimizing impacts, and project impacts exceed applicable permit thresholds, then mitigation will be required.
The mitigation plan must be implemented and/or constructed before any permanent building or structure on site is occupied. In the case of a public road project, the mitigation plan must be implemented before the road is opened to the public. Proof of payment into a mitigation bank or in-lieu fee program or completion of an approved permit-specifc mitigation project must be provided to DWR to satisfy this requirement.
Learn more about DWR's Stream & Wetland and Nutrient Offset & Buffer Compensatory Mitigation programs:
Options for compensatory mitigation