16.18A.260 Mitigation plan requirements.
When mitigation is required, the applicant shall submit for approval by the city a mitigation plan as part of the critical area report. The mitigation plan shall include:
A. Environmental Goals and Objectives. The mitigation plan shall include a written report identifying environmental goals and objectives of the compensatory mitigation proposed and including:
1. A description and quantification of the anticipated impacts to the critical areas and the mitigation actions proposed and the purposes of the compensatory mitigation measures, including the mitigation site selection criteria; identification of compensation goals; identification of resource functions; and dates for beginning and completion of site compensation construction activities. The goals and objectives shall be related to the specific functions and values of the critical area(s) impacted by the project;
2. An analysis of the likelihood of success of the compensatory mitigation project based on site selection, type of mitigation proposed, and functions and values to be replicated.
B. Performance Standards. The mitigation plan shall include measurable specific criteria for evaluating whether or not the goals and objectives of the mitigation project have been successfully attained and whether or not the requirements of this chapter have been met.
C. Detailed Construction Plans. The mitigation plan shall include detailed construction plans, including written specifications and descriptions of the mitigation proposed, including:
1. The proposed construction sequence, timing, and duration;
2. Grading and excavation details;
3. Erosion and sediment control features;
4. A planting plan specifying plant species, sources, quantities, locations, size, and spacing; and
5. Measures to protect and maintain plants until established, including provisions for soil amendments and temporary irrigation.
These written specifications shall be accompanied by detailed site diagrams, scaled cross-sectional drawings, topographic maps showing slope percentage and final grade elevations, and any other drawings appropriate to show construction techniques or anticipated final outcome.
D. Monitoring Program. The mitigation plan shall include a program for monitoring construction of the compensatory mitigation project and for assessing a completed project. A protocol shall be included outlining the schedule for site monitoring and how the monitoring data will be evaluated to determine if the performance standards are being met. A monitoring report shall be submitted to the city at least annually to document milestones, successes, problems, and contingency actions relative to the compensatory mitigation project. All mitigation plans shall include a minimum monitoring period of five years, but shall also include monitoring of longer duration when necessary to establish that performance standards have been met (for example ten years for forested conditions).
E. Contingency Plan. The mitigation plan shall include identification of potential courses of action, and any corrective measures to be taken if monitoring or evaluation indicates project performance standards are not being met.
F. Financial Guarantees. The mitigation plan shall include financial guarantees, if necessary, to ensure that the mitigation plan is fully implemented. Financial guarantees ensuring fulfillment of the compensatory mitigation project, monitoring program, and any contingency measures shall be posted in accordance with Bonds to ensure mitigation, maintenance, and monitoring (Section 16.18A.410). (Ord. 1104-15 § 1 (Att. A)).