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13 <br /> loss") of area is met and provided that the minimum functional replacement <br /> compensation requirement of Regulation 35.A.3 is met. <br /> IVA score per acre function lost X acres lost =Acres of compensation <br /> IVA score ner acre function gained at mitigation site <br /> 7. How Compensation is Calculated (Concurrent Mitigation). The acreage of compensation <br /> for concurrent mitigation (mitigation that is constructed but may not be fully functioning <br /> at the time impact is incurred) shall be calculated from the IVA function performance <br /> scores at the time of impact, provided that the minimum compensation requirements of <br /> Regulation 35.A.3 are met at all times (see Table 5.1 in the Salmon Overlay for <br /> example): <br /> IVA score per acre function lost X 1.3 X (acres lost) = Acres of compensation <br /> IVA score per acre function gained (at the time of impact) <br /> 8. Compensation Based on Limiting Function. Under Regulations 35.A. 6 and 7, the <br /> acreage needed for compensation shall be calculated separately for the chinook and <br /> coho/bull trout functions. Whichever function requires the greater acreage for <br /> compensation (i.e.,which is the limiting function) will determine the required overall <br /> compensation acreage in order to ensure that the limiting function is adequately <br /> compensated for. Excess compensation acreage for the nonlimiting function shall not be <br /> available as compensation for other habitat impacts. <br /> 9. Use of Average Restoration Potential Per Acre. An average restoration potential per acre <br /> shall be used to establish the compensation requirements in cases where several AUs are <br /> restored simultaneously(as in a compensation bank) or where several individual project <br /> impacts are to be mitigated in a single restoration project. This average is calculated by <br /> summing the potential increase in IVA-acre points and dividing by the total acreage of <br /> the site. This average shall then be used to determine the acres of compensation required <br /> according to Regulations 35.A. 3 and 6 or 7. <br /> 10. Guidelines for Developing Compensatory Mitigation Plans. Compensatory mitigation <br /> and monitoring plans (CMMPs)with applicable performance standards submitted under <br /> the SEWIP plan should follow the interagency"Guidelines for Developing Freshwater <br /> Wetlands Mitigation Plans and Proposals"(Department of Ecology Publication #94-29) <br /> and should be reviewed by the SSOTAC. Applicants should consider the overall <br /> restoration objectives set forth in SO Chapter 6. <br /> 11. Performance Criteria. Standards and performance criteria shall be established for each <br /> mitigation action as described in SO Section 5.6 and stated in the CMMP. <br /> 12. Monitoring Requirements. Each compensation site shall be monitored over a period of <br /> up tol 0 years as described in SO Section 5.6. <br /> 36 <br /> 31 <br />