Ordinance 2859-05 - Laserfiche WebLink

at the time impact is incurred) shall be calculated from the IVA function performance scores at the time of impact, provided that the minimum compensation requirements of Regulation 35.A.3 are met at all times (see Table 5.1 in the Salmon Overlay for example): IVA score per acre function lost X 1.3 X (acres lost) = Acres of compensation IVA score per acre function gained (at the time of impact) 8. Compensation Based on Limiting Function. Under Regulations 35.A. 6 and 7, the acreage needed for compensation shall be calculated separately for the chinook and coho/bull trout functions. Whichever function requires the greater acreage for compensation (i.e., which is the limiting function) will determine the required overall compensation acreage in order to ensure that the limiting function is adequately compensated for. Excess compensation acreage for the nonlimiting function shall not be available as compensation for other habitat impacts. 9. Use of Average Restoration Potential Per Acre. An average restoration potential per acre shall be used to establish the compensation requirements in cases where several AUs are restored simultaneously(as in a compensation bank) or where several individual project impacts are to be mitigated in a single restoration project. This average is calculated by summing the potential increase in IVA-acre points and dividing by the total acreage of the site. This average shall then be used to determine the acres of compensation required according to Regulations 35.A. 3 and 6 or 7. 10. Guidelines for Developing Compensatory Mitigation Plans. Compensatory mitigation and monitoring plans (CMMPs) with applicable performance standards submitted under the SEWIP plan should follow the interagency"Guidelines for Developing Freshwater Wetlands Mitigation Plans and Proposals" (Department of Ecology Publication#94-29) and should be reviewed by the SSOTAC. Applicants should consider the overall restoration objectives set forth in SO Chapter 6. 11. Performance Criteria. Standards and performance criteria shall be established for each mitigation action as described in SO Section 5.6 and stated in the CMMP. 12. Monitoring Requirements. Each compensation site shall be monitored over a period of up to10 years as described in SO Section 5.6. 13. Threatened, Endangered, or Commercially Important Species. All tidal and associated riparian areas within the SEWIP planning area are designated critical habitat for chinook salmon and are likely to also constitute important habitat for coho salmon and anadromous native char. If areas in the UGA have other threatened, endangered or commercially important species, then the compensation plan shall incorporate design measures to mitigate any impacts to these species and their habitats. 14. Use of Restoration Acreage in Lieu of Maintenance and Contingency Bond. The restoration of additional habitat acreage may be used in lieu of a maintenance and 31